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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 621 (1995), S. 525-530 
    ISSN: 0044-2313
    Keywords: Rhenium Complexes ; Syntheses ; IR spectra ; Crystal Structures ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Crystal Structures of (NH4)2[ReCl6], [ReCl2(CH3CN)4]2[ReCl6] · 2CH3CN and [ReCl4(18)(Crown-6)]Brown single crystals of (NH4)2[ReCl6] are formed by the reaction of NH4Cl with ReCl5 in a suspension of diethylether. [ReCl2(CH3CN)4]2[ReCl6] · 2CH3CN crystallizes as brown crystal plates from a solution of ReCl5 in acetonitrile. Lustrous green single crystals of [ReCl4(18-crown-6)] are obtained by the reaction of 18-crown-6 with ReCl5 in a dichloromethane suspension. All rhenium compounds are characterized by IR spectroscopy and by crystal structure determinations.(NH4)2[ReCl6]: Space group Fm3m, Z = 4, 75 observed unique reflections, R = 0.01. Lattice constant at -70°C: a = 989.0(1) pm. The compound crystallizes in the (NH4)2[PtCl6] type, the Re—Cl distance is 235.5(1) pm.[ReCl2(CH3CN)4]2[ReCl6] · 2CH3CN: Space group P1, Z = 1, 2459 observed unique reflections, R = 0.12. Lattice dimensions at -60°C: a = 859.0(1), b = 974.2(7), c = 1287.3(7) pm, α = 102.69(5)°, b̃ = 105.24(7)°, γ = 102.25(8)°. The structure consists of two symmetry-independent [ReCl2(CH3CN)4]+ ions with trans chlorine atoms, [ReCl6]2- ions, and included acetonitrile molecules. In the cations the Re—Cl bond lengths are 233 pm in average, in the anion they are 235 pm in average.[ReCl4(18-crown-6)]: Space group P21/n, Z = 4, 3 633 observed unique reflections, R = 0.06. Lattice dimensions at -70°C: a = 1040.2(4), b = 1794.7(5), c = 1090.0(5) pm, b̃ = 108.91(4)°. The compound forms a molecular structure, in which the rhenium atom is octahedrally coordinated by the four chlorine atoms and by two oxygen atoms of the crown ether molecule.
    Notes: Braune Einkristalle von (NH4)2[ReCl6] entstehen durch Reaktion von NH4Cl mit ReCl5 in einer Diethylethersuspension. [ReCl2(CH3CN)4]2[ReCl6] · 2CH3CN kristallisiert als braune Kristallplättchen aus einer Lösung von ReCl5 in Acetonitril. Leuchtend grüne Einkristalle von [ReCl4(18-Krone-6)] entstehen durch Reaktion von 18-Krone-6 mit ReCl5 in einer Dichlormethansuspension. Die drei Rhenium-Verbindungen werden durch ihre IR-Spektren und durch Kristallstrukturanalysen charakterisiert.(NH4)2[ReCl6]: Raumgruppe Fm3m, Z = 4, 75 unabhängige beobachtete Reflexe, R = 0,01. Gitterkonstante bei -70°C: a = 989,0(1) pm. Die Verbindung kristallisiert im (NH4)2[PtCl6]-Typ, der Re—Cl-Abstand beträgt 235,5(1) pm.[ReCl2(CH3CN)4]2[ReCl6] · 2CH3CN: Raumgruppe P1, Z = 1, 2459 beobachtete unabhängige Reflexe, R = 0,12. Gitterkonstanten bei -60°C: a = 859,0(1); b = 974,2(7); c = 1287,3(7) pm, α = 102,69(5)°; b̃ = 105,24(7)°; γ = 102,25(8)°. Die Struktur besteht aus zwei symmetrieunabhängigen [ReCl2(CH3CN)4]+-Ionen mit trans-ständigen Chloratomen, [ReCl6]2--Ionen und eingelagerten Acetonitrilmolekülen. In den Kationen betragen die Re—Cl-Abstände im Mittel 233 pm, im Anion im Mittel 235 pm.[ReCl4(18-Krone-6)]: Raumgruppe P21/n, Z = 4, 3 633 beobachtete unabhängige Reflexe, R = 0,06. Gitterkonstanten bei -70°C: a = 1040,2(4); b = 1794,7(5); c = 1090,0(5) pm; b̃ = 108,91(4)°. Die Verbindung bildet eine Molekülstruktur, in der das Rheniumatom oktaedrisch von den vier Chloratomen und von zwei Sauerstoffatomen des Kronenethers koordiniert ist.
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  • 2
    ISSN: 0044-2313
    Keywords: Phosphorane Iminato Complexes of Sulfur ; Syntheses ; IR Spectra ; Crystal Structures ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Phosphorane Iminato Complexes of Sulfur. Syntheses and Crystal Structures of [O3SS(NPPh3)2] · CH3CN, [SO(NPPh3)2], and [SCl(NPMe3)2]ClThe title compounds have been prepared by the reaction of Me3SiNPPh3 with SO2 and SOCl2, respectively, and by the reaction of Me3SiNPMe3 with S2Cl2. They form colourless, moisture sensitive crystals, which were characterized by IR spectroscopy and by crystal structure determinations.[O3SS((NPPh3)2)] · CH3CN: Space group Pca21, Z = 4, structure solution with 4016 observed unique reflections, R = 0.050. Lattice dimensions at -60°C: a = 1865.1, b = 1168.4, c = 1569.0 pm. The compound has a zwitterionic structure with a S—S bond length of 218.2 pm and bond lengths S—N of 161.2 and P—N of 160.1 pm.[SO(NPPh3)2]: Space group P21/c, Z = 4, structure solution with 2854 observed unique reflections, R = 0.113. Lattice dimensions at -50°C: a = 1173.1, b = 1585.6, c = 1619.2 pm, b̃ = 98.13°. The compound forms monomeric molecules, in which the positions of S and N atoms are disordered in two positions. The bond lengths are S—N 166 pm and P—N 163 pm in average.[SCl(NPMe3)2]Cl: Space group P1, Z = 2, structure solution with 2416 observed unique reflections, R = 0.038. Lattice dimensions at 20°C: a = 613.2, b = 1030.3, c = 1111.4 pm, α = 88.48°, b̃ = 88.01°, γ = 83.10°. The compound forms ions [SCl(NPMe3)2]+ and Cl-. In the cation the sulfur atom is φ-tetrahedrally coordinated with a long S—Cl distance of 246.9 pm and bond lengths S—N of 155.3 pm and P—N of 164.3 pm in average.
    Notes: Die Titelverbindungen entstehen durch Umsetzung von Me3SiNPPh3 mit Schwefeldioxid bzw. mit Thionylchlorid und von Me3SiNPMe3 mit Dischwefeldichlorid als farblose, feuchtigkeitsempfindliche Kristalle, die wir durch die IR-Spektren und durch Kristallstrukturanalysen charakterisiert haben.[O3SS(NPPh3)2)] · CH3CN: Raumgruppe Pca21, Z = 4, Strukturlösung mit 4016 unabhängigen beobachteten Reflexen, R = 0,050. Gitterabmessungen bei -60°C: a = 1865,1; b = 1168,4; c = 1569,0 pm. Die Verbindung hat eine zwitterionische Struktur mit einer S—S-Bindungslänge von 218,2 pm und Abständen S—N von 161,2 pm und P—N von 160,1 pm.[SO(NPPh3)2]: Raumgruppe P21/c, Z = 4, Strukturbestimmung mit 2854 unabhängigen beobachteten Reflexen, R = 0,113. Gitterabmessungen bei -50°C: a = 1173,1; b = 1585,6; c = 1619,2 pm, b̃ = 98,13°. Die Verbindung hat eine monomere Molekülstruktur, deren S- und N-Atomlagen in zwei Positionen fehlgeordnet sind. Die Bindungslängen betragen im Mittel für S—N 166 pm und für P—N 163 pm.[SCl(NPMe3)2]Cl: Raumgruppe P1, Z = 2, Strukturlösung mit 2416 unabhängigen beobachteten Reflexen, R = 0,038. Gitterabmessungen bei 20°C: a = 613,2; b = 1030,3; c = 1111,4 pm, α = 88,48°; b̃ = 88,01°; γ = 83,10°. Die Verbindung besteht aus Ionen [SCl(NPMe3]2+ und Cl-. Im Kation ist das Schwefelatom φ-tetraedrisch koordiniert mit einem S—Cl-Abstand von 246,9 pm und mittleren Bindungslängen S—N von 155,3 pm und P—N von 164,3 pm.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 621 (1995), S. 1171-1174 
    ISSN: 0044-2313
    Keywords: Selenium ; Phosphorane Iminato Complex of Selenium ; 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 the Selenyl-Phosphoraneiminato Complex SeO(NPPh3)2SeO(NPPh3)2 has been prepared from SeO2 and Me3SiNPPh3 in a SeO2 suspension in acetonitrile, forming colourless crystals. The compound is characterized by IR spectroscopy and by a crystal structure determination. Space group P1, Z = 2, structure solution with 5 344 observed unique reflections, R = 0.064. Lattice dimensions at -40°C: a = 931.6, b = 947.6, c = 1 762 pm, α = 77.50°, β = 81.78°, γ = 79.23°. The compound forms monomeric molecules in which the selenium atom is ϕ-tetrahedrally surrounded with bond lengths SeO = 161.7 pm and SeN = 179.9 and 181.6 pm.
    Notes: SeO(NPPh3)2 entsteht in Form farbloser Kristalle bei der Reaktion einer Suspension von SeO2 mit Me3SiNPPh3 in Acetonitril. Die Verbindung wird durch das IR-Spektrum und durch eine Kristallstrukturanalyse charakterisiert. Raumgruppe P1, Z = 2, Strukturlösung mit 5 344 beobachteten unabhängigen Reflexen, R = 0,064. Gitterkonstanten bei -40°C: a = 931,6; b = 947,6; c = 1 762 pm, α = 77,50°, β = 81,78°, γ = 79,23°. Die Verbindung bildet monomere Moleküle, in denen das Selenatom verzerrt ϕ-tetraedrisch umgeben ist mit Abständen SeO = 161,7 pm und SeN = 179,9 und 181,6 pm.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 863-866 
    ISSN: 0044-2313
    Keywords: Phosphorane Iminato Complex of Sulfur ; Synthesis ; Crystal Structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: [(Me3PN)3SNS(NPMe3)2]Cl2, a Mixed Valenced Phosphorane Iminato Complex of SulfurThe title compound has been prepared from trithiazyl chloride and the silylated phosphaneimine Me3SiNPMe3 in acetonitrile solution, forming red crystals, which were characterized by IR spectroscopy and by a crystal structure determination.Space group P21/c, Z = 4, structure solution with 4250 independent reflections, R = 0.054. Lattice dimensions at 20°C: a = 1077.8, b = 2036.6, c = 1480.5 pm, β = 102.39°. The compound consists of dications [(Me3PN)3SNS(NPMe3)2]2+ and chloride ions. In the cations the sulfur atoms of oxidation number +VI and +IV are connected by an asymmetric, bent nitrido bridge with SN bond lengths of 156.9 and 167.0 pm.
    Notes: Die Titelverbindung entsteht als rote Kristalle bei der Reaktion von Trithiazylchlorid mit dem silylierten Phosphanimin Me3SiNPMe3 in Acetonitrillösung. Die Verbindung wird durch das IR-Spektrum und durch eine Kristallstruktur-analyse charakterisiert.Raumgruppe P21/c, Z = 4, Strukturlösung mit 4250 unabhängigen Reflexen, R = 0,054. Gitterabmessungen bei 20°C: a = 1077,8; b = 2036,6; c = 1480,5 pm, β = 102,39°. Die Verbindung besteht aus den Dikationen [(Me3PN)3SNS(NPMe3)2]2+ und Chloridionen. In den Kationen sind die Schwefelatome der Oxidationszahl +VI und +IV über eine asymmetrische, gewinkelte Nitridobrücke mit SN-Abständen von 156,9 und 167,0 pm verknüpft.
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 1205-1208 
    ISSN: 0044-2313
    Keywords: Osmium Nitridotrichloride ; synthesis ; IR spectrum ; magnetic susceptibility ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Osmium Nitridotrichloride, OsNCl3OsNCl3 was prepared by the reaction of (NH4)2[OsNCl5] with chlorine at 300°C, forming a black, X-ray amorphous moisture sensitive, paramagnetic powder which was characterized by IR spectroscopy and measurement of the magnetic susceptibility in the range of 5-300 K.
    Notes: OsNCl3 wird als schwarzes, röntgenamorphes, feuchtigkeitsempfindliches paramagnetisches Pulver durch Reaktion von (NH4)2[OsNCl5] mit Chlor bei 330°C hergestellt und IR-spektroskopisch sowie durch magnetische Suszeptibilitätsmessungen im Bereich von 5-300 K charakterisiert.
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 1195-1199 
    ISSN: 0044-2313
    Keywords: Tetrafluoro-N-chloro-Imido Complexes of Molybdenum and Tungsten ; Donor-Acceptor Complexes ; Crystal Structures ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions of MoNCl3 and WNCl3 with Elemental Fluorine. Crystal Structures of [MoO2F2(THF)2] and [WF4(NCl)(CH3CN)]The nitrido chlorides MoNCl3 and WNCl3 as well as WCl4(NCl) react with elemental fluorine forming the N-chloro imido complexes MoF4(NCl) and WF4(NCl), which were characterized by IR spectroscopy. With tetrahydrofurane MoF4(NCl) reacts to give [MoF4(NCl)(THF)], which in THF solution slowly converts into [MoO2F2(THF)2]. From WF4(NCl) with acetonitrile the complex [WF4(NCl)(CH3CN)] is obtained. Both donor acceptor complexes were characterized by crystal structure determinations.[MoO2F2(THF)2]: Space group P21/n, Z = 4, structure solution with 1823 unique reflections, R = 0.033 for reflections with I 〉 2σ(I). Lattice dimensions at -40°C: a = 636.2, b = 1119.5, c = 1625.2 pm; β = 93.92(1)º. The compound has a monomeric molecular structure with the fluorine atoms in trans-position to one another and with the oxygen atoms of the THF molecules in trans to the oxo ligands.[WF4(NCl)(CH3CN)]: Space group P21/m, Z = 2, structure solution with 1119 unique reflections, R = 0.038 for reflections with I 〉 2σ(I). Lattice dimensions at 20°C: a = 511.7, b = 714.9, c = 1002.5 pm; β = 102.59(10)º. The compound has a monomeric molecular structure in which the nitrogen atom of the acetonitrile molecule coordinates in trans-position to the N-chloro imido group W≡N—Cl. The structural parameters of this group are WN = 172.2 pm, NCl = 161.1 pm, WNCl = 178.6º.
    Notes: Die Nitridochloride MoNCl3 und WNCl3 reagieren ebenso wie WCl4(NCl) mit elementarem Fluor unter Bildung der N-chlorimido-Komplexe MoF4(NCl) und WF4(NCl), die durch ihre Spektren charakterisiert werden. Mit Tetrahydrofuran reagiert MoF4(NCl) unter Bildung von [MoF4(NCl)(THF)], das sich in THF-Lösung langsam in MoO2F2(THF)2 umwandelt. WF4(NCl) bildet mit Acetonitril den Komplex [WF4(NCl)(CH3CN)]. Von beiden Donor-Akzeptor-Komplexen wurden Kristallstrukturanalysen angefertigt.[MoO2F2(THF)2]: Raumgruppe P21/n, Z = 4, Strukturlösung mit 1823 unabhängigen Reflexen, R = 0,033 für Reflexe mit I 〉 2σ(I). Gitterkonstanten bei -40°C: a = 636,2; b = 1119,5; c = 1625,2 pm; β = 93,92(1)º. Die Verbindung hat eine monomere Molekülstruktur, in der die F-Atome in trans-Position zueinander und die O-Atome der THF-Moleküle in trans-Stellung zu den Oxoliganden angeordnet sind.[WF4(NCl)(CH3CN)]: Raumgruppe P21/m, Z = 2, Strukturlösung mit 1119 unabhängigen Reflexen, R = 0,038 für Reflexe mit I 〉 2σ(I). Gitterkonstanten bei 20°C: a = 511,7; b = 714,9; c = 1002,5 pm; β = 102,59(10)º. Die Verbindung hat eine monomere Molekülstruktur, in der das N-Atom des Acetonitrilmoleküls in trans-Stellung zur N-chlorimido-Gruppe W≡N—Cl angeordnet ist. Die Strukturparameter dieser Gruppe sind WN = 172,2 pm, NCl = 161,1 pm, WNCl 178,6º.
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 623 (1997), S. 1375-1379 
    ISSN: 0044-2313
    Keywords: Tellurium Nitride Chloride ; Synthesis ; 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 the Ionic Tellurium Nitride Chloride[Te3N2Cl5(SbCl5)]+SbCl6-The title compound has been prepared by the reaction of Te2NCl5 with antimony pentachloride in CH2Cl2 suspension. It is characterized by IR spectroscopy and by a crystal structure determination. Space group P21/c, Z = 4, lattice dimensions at -70°C: a = 1535.6, b = 1259.5, c = 1572.4 pm, β = 109.30°, R = 0.031. The compound forms an ionic pair with the central group of a (TeNCl)2 molecule in which the tellurium atoms are linked by the nitrogen atoms to give a planar Te2N2 four-membered ring. One of the nitrogen atoms is coordinated by a TeCl3+ unit, the other one by an antimony pentachloride molecule. According to the IR spectra a structure like [Te2N2Cl2(TeCl4)2] is proposed for Te2NCl5.
    Notes: Die Titelverbindung wird durch Reaktion von Te2NCl5 mit Antimonpentachlorid in Dichlormethan hergestellt und durch das IR-Spektrum und eine Kristallstrukturanalyse charakterisiert. Raumgruppe P21/c, Z = 4, Gitterkonstanten bei -70°C: a = 1535,6; b = 1259,5; c = 1572,4 pm, β = 109,30°; R = 0,031. Die Verbindung bildet ein Ionenpaar, dessen Kation als zentrales Bauelement ein (TeNCl)2-Molekül enthält, in dem die Telluratome mit den Stickstoffatomen zu einem planaren Te2N2-Vierring verknüpft sind. Eines der N-Atome ist mit einem TeCl3+-Ion, das andere mit einem SbCl5-Molekül koordiniert. Aus dem Vergleich der IR-Spektren wird für Te2NCl5 eine Struktur gemäß [Te2N2Cl2(TeCl4)2] vorgeschlagen.
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 623 (1997), S. 224-230 
    ISSN: 0044-2313
    Keywords: Zirconium ; Hafnium ; Phosphaneiminato Complexes ; Crystal Structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Phosphoraneiminato Complexes of Zirconium and Hafnium with Clusterlike StructuresThe tetrachlorides of zirconium and hafnium react with excess phosphaneimine Me3SiNPMe3 at 220°C in the presence of sodium fluoride by cleaving FSiMe3 to form the ionic complexes [Zr3Cl6(NPMe3)5]+[Zr2Cl6(NPMe3)3]- and [Hf3Cl6(NPMe3)5]+[Hf2Cl7(NPMe3)2]-. According to crystal structure analyses in the cations the three metal atoms together with three μ2-NPMe3- groups and two NPMe3- groups with μ3-function are forming trigonal bipyramids. In the anion of the zirconium complex the Zr atoms are linked by three μ2-N bridges, whereas in the anion of the hafnium compound bridging is effected by two μ2-N bridges and one μ2-Cl bridge. Primary products in the reaction of MCl4 (M = Zr, Hf) with silylated phosphaneimines are donor-acceptor complexes like [ZrCl4(Me3SiNPPh3)] which has been characterized crystallographically as an example. In the molecular complex the Zr-atom is coordinated in a trigonal bipyramidal fashion.
    Notes: Die Tetrachloride von Zirconium und Hafnium reagieren mit überschüssigem Phosphanimin Me3SiNPMe3 bei 220°C in Gegenwart von Natriumfluorid unter Abspaltung von FSiMe3 und Bildung der komplexen Ionenverbindungen [Zr3Cl6(NPMe3)5]+[Zr2Cl6(NPMe3)3]- und [Hf3Cl6(NPMe3)5]+[Hf2Cl7(NPMe3)2]-. Nach Kristallstrukturanalysen bilden in den Kationen die drei Metallatome zusammen mit drei NPMe3--Gruppen mit μ2-N-Funktion und zwei NPMe3--Gruppen mit μ3-N-Funktion trigonale Bipyramiden. Im Anion des Zirconium-Komplexes sind die Zr-Atome über drei μ2-N-Brücken verknüpft, während im Anion der Hafnium-Verbindung die Hf-Atome über zwei μ2-N-Brücken und eine μ2-Cl-Brücke verbunden sind. Primärprodukte bei der Reaktion von MCl4 (M = Zr, Hf) mit silylierten Phosphaniminen sind Donor-Akzeptor-Komplexe, von denen das Beispiel [ZrCl4(Me3SiNPPh3)] kristallographisch charakterisiert wurde. In dem Molekül-Komplex ist das Zr-Atom trigonal-bipyramidal koordiniert.
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 129 (1996), S. 1621-1625 
    ISSN: 0009-2940
    Keywords: Organo-zinc compounds ; Phosphaneiminato complexes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Organo-Zinc Phosphaneiminato Complexes with Heterocubane StructureThe organo-zinc heterocubanes [ZnR(NPMe3)]4 with R = CH3 (1) and n-C4H9 (2) were prepared by the reaction of [ZnBr(NPMe3)]4 with MeLi and nBuLi, respectively, in hexane solution. In a similar reaction of nBuLi with [ZnI(NPMe3]4 the phosphaneiminato complex [Zn4I(nBu)4(NPMe3)3] (3) is formed. 1-3 were characterized by IR, NMR and MS spectroscopy, and by crystal-structure determinations. 1 and 2 possess heterocubane structures in which the zinc atoms are linked via μ3-N bridges of the phosphaneiminato groups, and all bond angles in the Zn4N4 core are close to 90°. A distorted heterocubane structure is observed for 3 with one of the NPMe3 moieties replaced by an iodine atom.
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  • 10
    ISSN: 0009-2940
    Keywords: Phosphane iminato complexes ; Arsenic compounds ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Phosphane Iminato Complexes of Arsenic. Crystal Structures of [AsCl(NPMe3)]2Cl2, [AsCl(NPMe3)2SbCl4]SbCl6, and [AsCl(NPMe3)2SnCl4] · CH3CN[AsCl(NPMe3)]2Cl2 (1) was prepared by the reaction of arsenic trichloride with the silylated phosphane imine Me3-SiNPMe3 in acetonitrile solution. According to the crystal structure determination, 1 has an ionic structure with [AsCl(NPMe3)]22+ ions, in which the As atoms are linked by the μ2-N atoms of the NPMe3- groups. Compound 1 reacts with antimony pentachloride to give [AsCl(NP-Me3)2SbCl4]+SbCl6- (2), with tin tetrachloride to form [AsCl(NPMe3)2SnCl4] (3), which is isoelectronic to the cation of 2. In 2 and 3 AsCl(NPMe3)2 acts as a chelating agent forming and , respectively, four-membered ring structures.
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