ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Articles  (19)
  • Articles: DFG German National Licenses  (19)
  • crystal structure  (10)
  • crystal structures  (5)
  • IR spectrum  (3)
  • Nitrido ligand  (2)
Collection
  • Articles  (19)
Source
  • Articles: DFG German National Licenses  (19)
Keywords
Publisher
Years
Topic
  • 1
    Electronic Resource
    Electronic Resource
    Se2NBr3, Se2NCl5, Se2NCl-6: New Nitride Halides of Selenium(III) and Selenium(IV) (1996)
    Weinheim : Wiley-Blackwell
    Chemistry - A European Journal 2 (1996), S. 1373-1378 
    Details
    ISSN: 0947-6539
    Keywords: ab initio calculations ; crystal structure ; halogen compounds ; nitrides ; selenium compounds ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Se2NBr3, a planar molecule shaped liked dividers, was formed by the reaction of SeBr4 with N(SiMe3)3, which reduced the selenium to the trivalent state. Under the same conditions, Se2NCl5 was obtained by the reaction of SeCl4 with N(SiMe3)3, retaining the tetravalent state of selenium. The molecule is formed by two edge-sharing pseudotrigonal bipyramids with selenium as their central atoms. Se2NCl5 reacts with PPh4Cl to form the Se2NCl-6 ion by the addition of a Cl- ion to only one of the two selenium atoms, resulting in pseudooctahedral coordination of this atom. Ab initio calculations for all the compounds reported confirm the experimentally determined structures.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/chem.19960021108
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Über die Reaktionen von Phosphaniminatokomplexen des Niobs, Molybdäns und Wolframs mit Natriumfluorid. Die Kristallstrukturen von [PPh3NH2]Cl und PPh3F2 (1991)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 602 (1991), S. 7-16 
    Details
    ISSN: 0044-2313
    Keywords: Phosphaneiminato complexes of Nb, Mo, W ; reactions with NaF ; triphenylaminophosphonium chloride ; triphenyl-difluorophosphorane ; crystal structures ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Reactions of Phosphaneiminato Complexes of Niobium, Molybdenum, and Tungsten with Sodium Fluoride. The Crystal Structures of [PPh3NH2]Cl and PPh3F2[NbCl4(NPPh3)]2 reacts with excess sodium fluoride and 15-crown-5 in acetonitrile, forming the fluoro complex [Na-15-crown-5][NbF5(NPPh3)] at room temperature. In boiling acetonitrile the solvent takes part in the cleavage of the Nb—N bond of the phosphaneiminato complex, yielding [PPh3NH2]Cl. In corresponding reactions the phosphaneiminato complexes [MoCl4(NPPh3)]2 and [WCl5(NPPh3)] undergo a cleavage of the P—N bond giving PPh3F2 in a good yield. [PPh3NH2]Cl and PPh3F2 are characterized by crystal structure analyses:[PPh3NH2]Cl: Space group Pna21, Z = 4,1796 observed independent reflexions, R = 0.030. Lattice constants at -60°C: a = 1084.7, b = 961.7, c = 1536.5. The compound consists of PPh3NH2+ ions and chloride ions, which link the cations to … HNH … Cl … HNH … Cl chains.PPh3F2: Space group Pbcn, Z = 4,987 observed independent reflexions, R = 0.044. Lattice constants at 20°C: a = 611.41, b = 1664.2, c = 1436.9. This compound has a trigonal bipyramidal structure with the fluorine atoms in the axial positions.
    Notes: Die Reaktion von [NbCl4(NPPh3)]2 mit überschüssigem Natriumfluorid in Acetonitril führt in Gegenwart von 15-Krone-5 in der Kälte zu dem Fluorokomplex [Na-15-Krone-5][NbF5(NPPh3)]. In der Siedehitze findet unter Mitwirkung des Lösungsmittels Spaltung der Nb—N-Bindung des Phosphaniminatokonplexes statt, wobei [PPh3NH2]Cl gebildet wird. Entsprechende Untersuchungen mit den Phosphaniminatokomplexen [MoCl4(NPPh3)]2 und [WCl5(NPPh3)] führen unter Spaltung der P—N-Bindung zu PPh3F2, das in guter Ausbeute erhalten wird. [PPh3NH2]Cl und PPh3F2 haben wir durch Kristallstrukturanalysen charakterisiert.[PPh3NH2]Cl: Raumgruppe Pna21, Z = 4,1796 unabhängige, beobachtete Reflexe, R = 3,0%. Gitterkonstanten bei -60°C: a = 1084,7; b = 961,7; c = 1536,5 pm. Die Verbindung besteht aus PPh3NH2+-Ionen und Chloridionen, die über Wasserstoffbrückenbindungen … HNH … Cl … HNH … Cl die Kationen zu Ketten verknüpfen.PPh3F2: Raumgruppe Pbcn, Z = 4,987 unabhängige, beobachtete Reflexe, R = 4,4%. Gitterkonstanten bei 20°C: a = 611,41; b = 1664,2; c = 1436,9 pm. Die Verbindung hat eine trigonal-bipyramidale Molekülstruktur mit den Fluoratomen in den Axialpositionen.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19916020102
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Chelatkomplexe von Rheniumtetrachlorid. Die Kristallstrukturen von ReCl4(DME) und ReCl4(DPPE) · Tolan (1992)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 613 (1992), S. 49-54 
    Details
    ISSN: 0044-2313
    Keywords: Rhenium tetrachloride chelate complexes ; preparation ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Chelate Complexes of Rhenium Tetrachloride. The Crystal Structures of ReCl4(DME) and ReCl4(DPPE) · TolanBright green crystals of ReCl4(DME) have been prepared by the reaction of rhenium pentachloride with dimethoxyethane (DME) in dichloromethane. ReCl4(DPPE) · tolan was obtained in form of red crystals by the reaction of the alkyne complex [ReCl4(Ph—C≡C—Ph)(POCl3)] with bis(diphenylphosphino)ethane (DPPE) in dichloromethane. The complexes were characterized by X-ray structure determinations.ReCl4(DME): Space group I42d, Z = 8, 829 observed unique reflexions, R = 0.022. Lattice dimensions at 19.5°C: a = b = 960.60(6), c = 2337.2(6) pm. The complex forms monomeric molecules with DME as chelating ligand; the Re—O bond lengths are 213.1 pm. The chlorine atoms, arranged in trans position to the chelating ligand, have slightly shorter Re—Cl bonds than the chlorine atoms in cis position (232,1 pm).ReCl4(DPPE) · tolan: Space group P21/n, Z = 4,4313 observed unique reflexions, R = 0.040. Lattice dimensions at -80°C: a = 1095.7(1), b = 1764.2(2), c = 1898.0(2) pm, β = 99.229(8)°. The compound consists in form of monomeric molecules [ReCl4(DPPE)] and diphenylacetylene molecules, which are incorporated in the lattice. The two phenyl rings of the tolan molecules are twisted towards each other along the C—C axis with a dihedral angle of 21°. The DPPE molecules are bonded to the rhenium atom in a chelating fashion with medium Re—P lengths of 250.4 pm. The chlorine atoms, arranged in trans position to this ligand, with Re—Cl bond lengths of 234.5 pm are slightly longer than the Re—Cl bonds in cis position with 232.3 pm.
    Notes: ReCl4(DME) wird in Form leuchtend grüner Kristalle durch Reaktion von Rheniumpentachlorid mit Dimethoxyethan (DME) in Dichlormethan hergestellt. ReCl4(DPPE) · Tolan erhielten wir als rote Kristalle bei der Reaktion des Alkinkomplexes [ReCl4(Ph—C≡C—Ph)(POCl3)] mit Bis(diphenylphosphino)ethan (DPPE) in Dichlormethan. Die Komplexe wurden durch röntgenographische Strukturanalysen charakterisiert.ReCl4(DME): Raumgruppe I42d, Z = 8, 829 beobachtete unabhängige Reflexe, R = 2,2%. Gitterkonstanten bei 19,5°C: a = b = 960,60(6); c = 2337,2(6) pm. Der Komplex bildet monomere Moleküle mit dem DME-Liganden als Chelat und Re—O-Abständen von 213,1 pm. Die hierzu trans-ständig angeordneten Chloratome haben mit 228,1 pm etwas kürzere Re—Cl-Bindungen als die cis-ständigen Cl-Atome (232,1 pm).ReCl4(DPPE) · Tolan: Raumgruppe P21/n, Z = 4, 4313 beobachtete, unabhängige Reflexe, R = 4,0%. Gitterkonstanten bei -80°C: a = 1095,7(1); b = 1764,2(2); c = 1898,0(2) pm, β = 99,229(8)°. Der Komplex bildet monomere Moleküle [ReCl4(DPPE)] und in das Gitter eingelagerte Diphenylacetylenmoleküle, deren Phenylringe einen Diederwinkel von 21° zueinander bilden. Die DPPE-Moleküle sind chelatartig am Rheniumatom gebunden mit Abständen Re—P von im Mittel 250,4 pm. Die hierzu trans-ständig angeordneten Chloratome sind mit Re—Cl—Abständen von 234,5 pm etwas länger als die cis-ständigen Re—Cl-Bindungen mit 232,3 pm.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19926130108
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    [W(NPPh3)4]Cl2  -  Ein Phosphaniminato-Komplex mit einem Wolfram-DikationProfessor Heinrich Nöth zum 65. Geburtstage gewidmet (1993)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 999-1003 
    Details
    ISSN: 0044-2313
    Keywords: Phosphoraneiminato Complex of Tungsten ; Synthesis ; IR spectrum ; Crystal Structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: [W(NPPh3)4]Cl2  -  a Phosphoraneiminato Complex with a Dication of TungstenThe title compound has been prepared by the reaction of Me3SiNPPh3 with WNCl3 and WO2Cl2, respectively, in acetonitrile, forming colourless crystals, which were characterized by IR spectroscopy and by an X-ray structure determination. Space group P21/n, Z = 4, 4 424 observed unique reflections, R = 0.045. Lattice dimensions at 20°C: a = 1 206.5(2), b = 2 225.3(2), c = 2 421.0(3) pm, β = 101.09(1)°. In the dication [W(NPPh3)4]2+ the tungsten atom is surrounded in a tetrahedral fashion by the four nitrogen atoms of the phosphoraneiminato ligands. The bond lengths WN and PN correspond with double bonds.
    Notes: Die Titelverbindung entsteht durch Reaktion von Me3SiNPPh3 mit WNCl3 bzw. mit WO2Cl2 in Acetonitril in Form farbloser Kristalle, die wir durch das IR-Spektrum und eine röntgenographische Strukturanalyse charakterisiert haben. [W(NPPh3)4]Cl2 kristallisiert monoklin in der Raumgruppe P21/n mit Z = 4 (4 424 beobachtete unabhängige Reflexe, R = 4,5%). Gitterabmessungen bei 20°C: a = 1 206,5(2); b = 2 225,3(2); c = 2 421,0(3) pm; β = 101,09(1)°. In dem Dikation [W(NPPh3)4]2+ ist das Wolframatom tetraedrisch von den vier N-Atomen der Phosphaniminatoliganden umgeben mit WN- und PN-Abständen, die Doppelbindungen entsprechen.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19936190607
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Über die Kronenetherkomplexe [K(15-Krone-5)2]3[Sb3I12], [TeCl3(15-Krone-5)][TeCl5] und [TeCl3(15-Krone-5)]2[TeCl6] (1991)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 596 (1991), S. 55-61 
    Details
    ISSN: 0044-2313
    Keywords: Crown ether complexes ; tellurium ; antimony ; syntheses ; i.r. spectra ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Crown Ether Complexes [K(15-Crown-5)2]3[Sb3I12], [TeCl3(15-Crown-5)][TeCl5], and [TeCl3(15-Crown-5)]2[TeCl6]Orange-coloured crystals of [K(15-crown-5)2]3[Sb3I12] are formed in the reaction of potassium iodide with antimony triiodide and 15-crown-5 in acetonitrile solution. An X-ray structure determination reveals severe disorder of the crown ether molecules, which coordinate to the potassium atoms in a sandwich array; so only the [Sb3I12]3- ion and the potassium positions were ascertained. The anion is a centrosymmetric trimer (symmetry C2h), which can be understood as central SbI63- ion, coordinated by two SbI3 molecules. (Space group C2/m), Z = 2, 3263 observed, independent reflections, R = 0.06, lattice dimensions at 20°C: a = 2541.1 pm, b = 1441.7 pm, c = 1588.4 pm, β = 113.33°.The tellurium complexes [TeCl3(15-crown-5)] [TeCl5] and [TeCl3(15-crown-5)]2[TeCl6] are prepared by reaction of TeCl4 with 15-crown-5 in acetonitrile solution, forming yellow-green crystals sensitive to moisture. They are characterized by their i.r. spectra.
    Notes: Orange Kristalle [K(15-Krone-5)2]3[Sb3I12] entstehen durch Einwirkung von Kaliumiodid auf Antimontriiodid bei Anwesenheit von 15-Krone-5 in Acetonitrillösung. Wegen Fehlordnung der die Kaliumionen sandwichartig koordinierenden Kronenethermoleküle konnten röntgenogrpahisch in der Struktur nur das [Sb3I12]3--Ion sicher aufgeklärt werden. Es bildet ein zentrosymmetrisches Trimer (Symmetrie C2h), das sich als zentrales SbI63--Ion mit zwei koordinierten SbI3-Molekülen auffassen läßt. Raumgruppe C2/m, Z = 2, 3263 unabhängige beobachtete Reflexe, R = 6,2%. Gitterabmessungen bei 20 °C: a = 2541,1; b = 1441,7; c = 1588,4 pm, β = 113,33°.Die Tellurokomplexe [TeCl3(15-Krone-5)] [TeCl5] und [TeCl3(15-Krone-5)]2[TeCl6] entstehen aus TeCl4 und 15-Krone-5 in Acetonitrillösung als gelbgrüne, feuchtigkeitsempfindliche Kristalle, die durch ihre IR-Spektren charakterisiert werden.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19915960108
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Benzamidinium-Hexachlorostannat Synthese und Kristallstruktur (1991)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 596 (1991), S. 133-138 
    Details
    ISSN: 0044-2313
    Keywords: Benzamidinium hexachlorostannate ; synthesis ; crystal structure ; i.r. spectrum ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Benzamidinium Hexachlorostannate: Synthesis and Crystal Structure[Ph—C(NH2)2SnCl6] has been prepared by the reaction of hydrogen chloride with the amidinato complex [Ph—C(NSiMe3)2SnCl3] in CH2Cl2 solution, forming colourless crystals. which were characterized by IR spectroscopy as well as by an X-ray structure determination. Space group P21/c, Z = 4, 3070 observed unique reflexions, R = 0.029. Lattice dimensions at -50°C: a = 892.5, b = 1076.7, c = 1175.6 pm, β = 109.3°. The compound consists of benzamidinium ions C6H5—C(NH2)2+ and anions SnCl62-, which are connected by a network of N—H…Cl hydrogen bridges.
    Notes: [Ph—C(NH2)2]2SnCl6 entsteht in Form farbloser Einkristalle durch Einwirkung von Chlorwasserstoff auf eine Lösung des Amidinatokomplexes [Ph—C(NSiMe3)2SnCl3] in Dichlormethan. Die Verbindung wird durch das IR-Spektrum und durch eine röntgenographische Strukturanalyse charakterisiert. Raumgruppe P21/c, Z = 4, 3070 beobachtete unabhängige Reflexe, R = 2,9%. Gitterabmessungen bei -50°C: a = 892,5; b = 1076,7; c = 1175,6 pm; β = 109,3°. Die Verbindung besteht aus Benzamidinium-Kationen C6H5—C(NH2)2+ und SnCl62--Ionen, in denen ein Netz von N—H…Cl-Wasserstoffbrücken besteht.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19915960118
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Chalkogeno-Fluoro-Wolframate. Die Kristallstrukturen von [Na-15-Krone-5]2[WO2F3]2 · 2 2 CH3CN und [Na-15-Krone-5]2[WOSF3]2 · 2 CH3CNHerrn Professor Hanskarl Müller-Buschbaum zum 60. Geburtstage am 24. Mai 1991 gewidmet (1991)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 596 (1991), S. 121-132 
    Details
    ISSN: 0044-2313
    Keywords: Chalcogeno-fluorotungstates ; syntheses ; i.r. spectra ; crystal structures ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Chalcogeno-Fluoro-Tungstates. The crystal Structures of [Na-15-Crown-5]2[WO2F3]2 ·2 CH3CN and [Na-15-Crown-5]2[WOSF3]2 · 2 CH3CNThe reaction of sodium fluoride with WSCL4 in acetonitrile solution successively leads in the presence of 15-crown-5 to the complexes [Na-15-crown-5][WSCl4F], [Na-15-crown-5]2[WSCl2F3], and [Na-15-crown-5][WSF5]. These complexes are characterized by their i.r. spectra. In acetonitrile partial hydrolysis of [Na-15-crown-5][WSF5] leads to [Na-15-crown-5]2[WSOF3]2 · 2 CH3CN; likewise one obtains [Na-15-crown-5]2[WO2[WO2F3]2] · 2 CH3CN from [Na-15-crown-5]2[WSOF7] by partial hydrolysis. X-ray structural analyses were carried out for both these chalcogeno complexes. [Na-15-crown-5]2[WO2F3]2 · 2 CH3CN: space group P1, Z = 1, 2316 unique observed reflexions, R = 0.036. Lattice dimensions at -65°C: a = 851.0, b = 1064.6, c = 1130.2 pm, α = 105.18°, β = 95.12°, γ = 102.48°.[Na-15-crown-5]2[WOSF3]2 · 2 CH3CN: space group P1, Z = 1,2472 unique observed reflexions, R = 0.030. Lattice dimensions at -80°C: a = 856.3, b = 1062.8, c = 1181.1 pm, α = 107.68°, β = 95.52°, γ = 102.65°.Both compounds are isotypical with each other; they form ion triples which originate from two short Na…F-contacts of 232 pm each with the four axially arranged fluorine ligands of the dimeric anions [WO2F3]22- and [WSOF3]22-, respectively. The dimerization takes place via angular fluoro bridges with W—F-bondings which are only slightly differing in length. The chalcogeno ligands are in the trans-positions to the bridging fluorine atoms.
    Notes: Die Reaktion von Natriumfluorid mit WSCl4 in Acetonitrillösung führt in Gegenwart von 15-Krone-5 schrittweise zu den Komplexen [Na-15-Krone-5][WSCl4F], [Na-15-Krone-5][WSCl2F3] und [Na-15-Krone-5][WSF5], die durch ihre IR-Spektren charakterisiert werden. Partielle Hydrolyse von [Na-15-Krone-5][WSF5] führt in Acetonitril zu [Na-15-Krone-5]2[WSOF3]2 · 2 CH3CN, ebenso erhält man aus [Na-15-Krone-5][WF7] durch partielle Hydrolyse [Na-15-Krone-5]2[WO2F3]2 · 2 CH3CN. Von beiden Chalkogenokomplexen wurden röntgenographische Strukturanalysen ausgeführt.[Na-15-Krone-5]2[WO2F3]2 · 2 CH3CN: Raumgruppe P1, Z = 1, 2316 unabhängige beobachtete Reflexe, R = 3,6%. Gitterkonstanten bei -65°C: a = 851,0; b = 1064,6; c = 1130,2 pm; α = 105,18°; β = 95,12°; γ = 102,48°. [Na-15-Krone-5]2[WOSF3]2 · 2 CH3CN: Raumgruppe P1, Z = 1, 2472 unabhängige beobachtete Reflexe, R = 3,0%. Gitterkonstanten bei -0°C: a = 856,3; b = 1062,8; c = 1181,1 pm; α = 107,68°; β = 95,52°; γ = 102,65°.Beide Verbindungen sind miteinander isotyp; sie bilden Ionentripel, die durch je zwei kurze Na…F-Kontakte von 232 pm mit den vier axial angeordneten Fluorliganden der dimeren Anionen [WO2F3]22- bzw. [WSOF3]22- zustandekommen. Die Dimerisierung erfolgt über gewinkelte Fluorobrücken mit nur wenig verschieden langen W—F-Bindungen. Die Chalkogenoliganden befinden sich in den trans-Positionen zu den Brücken-F-Atomen.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19915960117
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Synthese und Kristallstruktur von [Li(12-Krone-4)2][ReCl5(CH3CN)] · CH3CNHerrn Professor Joseph Grobe zum 60. Geburtstage am 2. November 1991 gewidmet (1991)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 606 (1991), S. 109-117 
    Details
    ISSN: 0044-2313
    Keywords: Pentachlorohenate(IV)-acetonitrile solvate ; synthesis ; IR spectrum ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Crystal Structure of [Li(12-Crown-4)2][ReCl5(CH3CN)] · CH3CNThe title compound has been prepared by the reaction of lithium chloride with rhenium pentachloride in the presence of 12-crown-4 in acetonitrile solution.[Li(12-crown-4)2][ReCl5(CH3CN)] · CH3CN has been characterized by IR spectroscopy as well as by an X-ray structure determination. Space group P1, Z = 2, 4 450 observed unique reflections, R = 0.047, Lattice dimensions at 20°C: a = 1 445.8, b = 1 463.2, c = 1 580.2 pm, α = 89.28°, β = 114.19°, γ = 89.40°. The compound is ionic, the cation being formed by a lithium ion coordinated by the eight oxygen atoms of two crown ether molecules 12-crown-4 in sandwich fashion. In the anions [ReCl5(CH3CN)]- the rhenium atoms are in a distorted octahedral shape by the five chlorine atoms and by the N atom of the acetonitrile molecule. The two crystallographically independent cations and anions, respectively, are only slightly different.
    Notes: Die Titelverbindung wurde durch Reaktion von Lithiumchlorid mit Rheniumpentachlorid in Gegenwart von 12-Krone-4 in Acetonitrillösung hergestellt und durch ihr IR-Spektrum und durch eine röntgenographische Strukturanalyse charakterisiert.[Li(12-Krone-4)2][ReCl5(CH3CN)] · CH3CN kristallisiert triklin in der Raumgruppe P1 mit zwei Formeleinheiten pro Elementarzelle, 4 450 beobachtete unabhängige Reflexe, R = 4,7%. Gitterabmessungen bei 20°C: a = 1 445,8; b = 1 463,2; c = 1 580,2 pm; α = 89,28°; β = 114,19°; γ = 89,40°. Die Verbindung hat einen ionischen Aufbau, in dem die Lithiumionen sandwichartig von den acht Sauerstoffatomen zweier Kronenethermoleküle 12-Krone-4 koordiniert sind. In den Anionen [ReCl5(CH3CN)]- sind die Rheniumatome verzerrt oktaedrisch von den fünf Chloratomen und von dem N-Atom des Acetonitrilmoleküls umgeben. Die beiden kristallographisch unabhängigen Kationen bzw. Anionen unterscheiden sich nur wenig voneinander.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19916060112
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Trimethylsilyl-substituierte Amidinatokomplexe von Thallium(III). Die Kristallstruktur von [Ph—C(NHSiMe3)2] [Ph—C(NSiMe3)2 TICI3]Herrn Professor Eberhard Hoyer zum 60. Geburtstage am 26. Mai 1991 gewidmet (1991)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 600 (1991), S. 7-14 
    Details
    ISSN: 0044-2313
    Keywords: Amidinato complexes of thallium(III) ; syntheses ; i.r. spectra ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Trimethylsilyl Substituted Amidinato Complexes of Thallium(III). The Crystal Structure of [Ph—C(NHSiMe3)2] [Ph—C(NSiMe3)2TlCl3]The amidinato complexes [Ph—C(NSiMe3)2TlCl3] and [Ph—C(NHSiMe3)2] [Ph—C(NSiMe3)2TlCl3] have been prepared by the reaction of TlCl3 with N,N,N′-tris(trimethylsilyl)benzamidine in THF solution. They were characterized by IR spectroscopy, [Ph—C(NHSiMe3)2] [Ph—C(NSiMe3)2TlCl3] additionally by an X-ray structure determination. Space group P21/c, Z = 4, 4300 observed unique reflexions, R = 0.053. Lattice dimensions at -43°C: a = 1157.2, b = 2346.3, c = 1536.9 pm, β = 105.98°. The structure consists of amidinium cations, and of anions [Ph—C(NSiMe3)2TlCl3]-, in which the thallium atom is fivefold surrounded by three chlorine atoms and by two nitrogen atoms of the amidinato chelate.
    Notes: Die Amidinatokomplexe [Ph—C(NHSiMe3)2TlCl2] und [Ph—C(NHSiMe3)2TlCl2] [Ph—C(NSiMe3)2TlCl3] entstehen bei der Einwirkung von Thallium(III)-chlorid auf N,N,N′-Tris(trimethylsilyl)benzamidin in Tetrahydrofuranlösung. Sie werden durch ihre IR-Spektren, und [Ph—C(NHSiMe3)2] [Ph—C(NSiMe3)2TlCl3] zusätzlich durch eine Kristallstrukturanalyse charakterisiert. Raumgruppe P21/c, Z = 4, 4300 unabhängige beobachtete Reflexe, R = 5,3%. Die Gitterkonstanten betragen bei -43°C: a = 1157,2; b = 2346,3; c = 1536,9 pm; β = 105,98°. Die Verbindung besteht aus einem Amidiniumkation und einem [Ph—C(NSiMe3)2TlCl3]--Anion, in dem das Thalliumatom verzerrt trigonal-bipyramidal von drei Cl-Atomen und chelatartig von den beiden N-Atomen des Amidinatoliganden umgeben ist.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19916000102
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Die Kristallstruktur von [MoO2F2(2,2′-Bipyridyl)] (1992)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 610 (1992), S. 117-120 
    Details
    ISSN: 0044-2313
    Keywords: 2,2′-Bipyridyl molybdenum difluoridedioxide ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Crystal Structure of [MoO2F2(2,2′-bipyridyl)]The title compound crystallizes in the space group P21/n with a = 869.6(1), b = 1390.1(3), c = 959.0(1) pm, β = 110.967(5)°, Z = 4; structure determination with 1718 observed independent reflections, R = 0.031. The compound consists of molecules having two cis oxo ligands and a bipyridyl chelate in the MoO2 plane.
    Notes: Die Titelverbindung kristallisiert in der Raumgruppe P21/n mit a = 869,6(1); b = 1390,1(3); c = 959,0(1) pm; β = 110,967(5)°, Z = 4; Strukturbestimmung mit 1718 beobachteten unabhängigen Reflexen, R = 3,1%. Die Verbindung besitzt eine Molekülstruktur mit cis-ständigen Oxoliganden und dem Bipyridylchelat in der MoO2-Ebene.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19926100119
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...