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  • Inorganic Chemistry  (62)
  • Wiley-Blackwell  (62)
  • American Association for the Advancement of Science (AAAS)
  • American Geophysical Union
  • PANGAEA
  • Taylor & Francis
  • 1990-1994  (62)
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  • Wiley-Blackwell  (62)
  • American Association for the Advancement of Science (AAAS)
  • American Geophysical Union
  • PANGAEA
  • Taylor & Francis
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  • 1
    Electronic Resource
    Electronic Resource
    Das Reaktionsverhalten von Phosphorpentahalogeniden mit Übergangsmetallcarbonylen. III. Die Reaktion von PBr5 mit den Hexacarbonylen des Molybdäns und Wolframs (1990)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 589 (1990), S. 214-220 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactivity of Phosphorus Pentahalides with Transition Metal Carbonyls. III. Reactivity of PBr5 with Hexacarbonyls of Molybdenum and TungstenPBr5 reacts with M(CO)6 (M = Mo, W) already at room temperature in CH3CN as solvent. Independend on the reaction condition WBr4(CH3CN)2 was obtained in the reaction of PBr5 with W(CO)6. In the case of Mo(CO)6 the complexes MoBr3(CH3CN)3 and MoBr4(CH3CN)2, respectively, were isolated depending on the amount of PBr5 and the reaction temperature. The structure of the products is discussed on the basis of the IR spectra and of magnetic moments.
    Notes: PBr5 reagiert mit M(CO)6 (M = Mo, W) in Acetonitril bereits bei Raumtemperatur. Für W(CO)6 wird unabhängig von den Reaktionsbedingungen stets WBr4(CH3CN)2 erhalten. Für Mo(CO)6 wird in Abhängigkeit von der Reaktionsführung, der Menge an PBr5 und der Reaktionstemperatur MoBr3(CH3CN)3 bzw. MoBr4(CH3CN)2 gebildet. Die Struktur der erhaltenen Produkte wird anhand der IR-Spektren und der magnetischen Messungen diskutiert.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19905890123
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  • 2
    Electronic Resource
    Electronic Resource
    Reaktionsverhalten von Phosphorpentahalogeniden mit Übergangsmetallcarbonyl-Verbindungen. IV [1 - 3]. Das Reaktionsverhalten von Phosphorpentahalogeniden gegenüber [CpM(CO)3]2 (M = Cr, Mo, W) Die Kristallstruktur von CpCrCl2CH3CN (1990)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 591 (1990), S. 221-229 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactivity of Phosphorus Pentahalides with Transition Metal Carbonyls. IV. Reactivity of Phosphorus Pentahalides with [CpM(CO)3]2 (M = Cr, Mo, W). Crystal Structure of CpCrCl2CH3CNPX5 (X = Cl, Br) reacts with cyclopentadienyl complexes of the type [CpM(CO)3]2 (M = Cr, Mo, W) at room temperature in high yields to give complexes CpCrX2CH3CN and CpMX4CH3CN (X = Cl, Br; M = Mo, W), respectively. The complexes were characterized by IR and ESR spectroscopy and magnetic measurements. CpCrCl2CH3CN crystallizes in the space group P21/c as a monomer with distorted tetrahedral geometry at chromium. The Cp ring is disordered.
    Notes: Die Reaktion von PX5 mit Cyclopentadienylderivaten des Typs [CpM(CO)3]2 (M = Cr, Mo, W; Cp = η5-C5H5) führt bei Raumtemperatur in hohen Ausbeuten zu den Halogeno-Komplexen CpCrX2CH3CN bzw. CpMX4CH3CN (X = Cl, Br; M = Mo, W). Die erhaltenen Derivate werden anhand der IR- und ESR-Spektroskopie, sowie der Messung magnetischer Daten charakterisiert. CpCrCl2CH3CN kristallisiert in der Raumgruppe P21/c als Monomer mit verzerrter tetraedrischer Geometrie am Chrom. Der Cp-Ring ist ungeordnet.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19905910127
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  • 3
    Electronic Resource
    Electronic Resource
    Preparation and crystal structure of the La2Ni12P5 and isotypic ternary lanthanoid - Nickel phosphides (1993)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 587-592 
    Details
    ISSN: 0044-2313
    Keywords: Lanthanoid-nickel phosphides ; preparation ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Darstellung und Kristallstruktur von La2Ni12P5 und isotypen ternären Lanthanoid-Nickel-PhosphidenDas neue ternäre Phosphid La2Ni12P5 wurde durch Aufschmelzen reiner Komponenten in einem Lichtbogenofen synthetisiert und seine Kristallstruktur durch Einkristalldaten belegt. La2Ni12P5 ist ein erster Vertreter eines neuen Strukturtyps: Raumgruppe P21/m, a = 10,911(3), b = 3,696(2), c = 13,174(4) Å, β = 108,02(2)°, V = 505,2(6) Å3, Z = 2. Die Lageparameter wurden “anisotrop” aus 1 284 Io(hkl) zu RF = 0,0278, RW = 0,0287 (I 〉 3s̰I; 116 Parameter) verfeinert. Charakteristisch für den Aufbau ist die trigonal-prismatische Koordination der Phosphoratome. Die isotypen Phosphide Ln2Ni12P5 (Ln = Ce, Pr, Nd und Eu) wurden ebenfalls dargestellt und durch Pulverdaten charakterisiert.
    Notes: The new ternary phosphide La2Ni12P5 has been prepared by direct arc melting of the components as pure metals and red phosphorus. The crystal structure has been determined using X-ray single crystal diffraction data. The compound exhibits a new type of crystal structure, P21/m with lattice parameters a = 10.911(3), b = 3.696(2), c = 13.174(4) Å, β = 108.02(2)°, V = 505,2(6) Å3, Z = 2. Atomic parameters least squares refinement of 116 independent variables (anisotropic approximation for thermal vibrations) employed 1 284 independent Io(hkl); RF = 0.0278 and RW = 0.0287. The crystal structure is characterized by trigonal prismatic arrangement of phosphorus atoms stacking variant of infinite (with phosphorus centered) columns built by metal trigonal prisms ‖ [010]. Two or three such columns are connected through common edges (lanthanum atoms). The compounds RE2Ni12P5 (where RE = Ce, Pr, Nd and Eu) display the same with La2Ni12P5 crystal structure. Lattice parameters of these compounds have been refined using powder diffraction data.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19936190326
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  • 4
    Electronic Resource
    Electronic Resource
    Transition Metal Chemistry of Main Group Hydrazides, VI. New Directed Synthetic Strategies to Functionalized Heterocyclic Phosphorus(III) Hydrazides. First Examples of Crystal and Molecular Structures of [RPN(Me)N(H)]2 (R = Et, Ph, and tBu) (1994)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 127 (1994), S. 979-984 
    Details
    ISSN: 0009-2940
    Keywords: Cyclophosphahydrazides ; Dinitrogen-bridged ; Conformation ; Chair and Boat forms ; Dinuclear Mo(0) complexes ; 1,2,4,5,3,6-Tetrazadiphosphorinanes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The reactions of methylhydrazine with RPC12 (R = Et, tBu, and Ph) produced the cyclic phosphorus (III) hydrazides (1,2,4,5,3,6-tetrazadiphosphorinanes) [RPN(Me)N(H)2 (R = Et, 1; (Ph, 2; tBu, 3) in good yields. The 1H-and 31P-NMR spectroscopic analysis indicated that 1 exists in chair and boat conformations. However, it crystallizes in the chair conformation exclusively. The X-ray crystallographic investigation of all the three cyclo-phosphorus hydrazides 1-3 confirms the existence of these compounds in the chair conformations in the solid state. The reaction of Mo(CO)4-(NHC5H10)2 with 1 and 2 gives the dinuclear Mo(0) complexes [{Mo(CO)4(NHC5H10)}2(μ-[RPN(Me)N(H)]2}] (R = Et, 5; Ph, 6). Based on 1H- and 31P-NMR spectroscopic data, a bridging dinuclear dimetallic formulation is proposed for 5 and 6. The IR spectra indicate that the carbonyls are disposed in cis-geometry around the Mo(0) center.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19941270603
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  • 5
    Electronic Resource
    Electronic Resource
    Transition Metal Chemistry of Main Group Hydrazides, 9. Platinum Complexes of Diphosphanylhydrazides R2PN(Me)N(Me)PR2 · PtCl2 (R = OPh, o-OC6H4CH2CHCH2) (1994)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 127 (1994), S. 1355-1357 
    Details
    ISSN: 0009-2940
    Keywords: Diphosphanylhydrazides ; Diphosphanes, dinitrogen-bridged ; Cycloplatinaphosphahydrazides ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: While the transition metal complexes of bis(phosphanyl)amines (PII-N-PIII) have been known for over three decades, the ligating properties of the next homologue PIII-N-N-PIII have been unprecedented so far. The X-ray structures of cycloplatinaphosphanehydrazides, [(OR)2PN(Me)N(Me)P(OR)2-PtCl2], reveal short distances for the P-N [1.639(5) Å] bonds.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19941270805
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  • 6
    Electronic Resource
    Electronic Resource
    On the Crystal Structure of LaCaCuGaO5 (1994)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 326-328 
    Details
    ISSN: 0044-2313
    Keywords: Lanthanum calcium copper gallate ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zur Kristallstruktur von LaCaCuGaO5Die Kristallstruktur von LaCaCuGaO5 wurde röntgenographisch an Einkristallen untersucht. Es kristallisiert orthorhombisch in der Raumgruppe C2v22-Ima2 mit a = 15,8467, b = 5,5077, c = 5,3188 Å, Z = 4. LaCaCuGaO5 gehört zum Brownmillerit-Typ und zeigt somit Schichten von eckenverknüpften CuO6-Oktaedern, die über GaO4-Tetraeder vernetzt sind. Die La3+- bzw. Ca2+-Ionen besetzen eine Punktlage statistisch.
    Notes: The crystal structure of LaCaCuGaO5 has been investigated by single crystal X-ray analysis. It crystallizes with orthorhombic symmetry, space group C2v22-Ima2, a = 15.8467, b = 5,5077, c = 5.3188 Å, Z = 4. LaCaCuGaO5 belongs to the mineral Brownmillerite showing layers of corner connected CuO6 octahedra linked by GaO4 tetrahedra. The La3+ and Ca2+ ions are distributed statistically over one crystallographic point position.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19946200220
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  • 7
    Electronic Resource
    Electronic Resource
    Transition Metal Complexes with the Thiosemicarbazide-based ligands. XII. Complexes of nickel(II) with benzoylacetone S-methylisothiosemicarbazone and N(1)-2-butylidene-4-oxo-4-phenyl-N(4)-salicylidene-S-methylisothiosemicarbazide (1991)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 592 (1991), S. 217-223 
    Details
    ISSN: 0044-2313
    Keywords: Thiosemicarbazide Nickel Complexes ; Syntheses ; IR, Electronic Absorption Spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Übergangsmetall-Komplexe mit Thiosemicarbazid-Liganden. XII. Komplexe von NiII mit Benzoylaceton-S-Methylisothiosemicarbazon und N(1)-2-Butyliden-4-oxo-4-Phenyl-N(4)-Salicyliden-S-MethylisothiosemicarbazidDurch Templat-Synthese wird [Ni(HL1)NH3]I (HL1 = Monoanion des dreizähnigen ONN-Liganden Benzoylaceton-S-Methylisothiosemicarbazid) erhalten. Dieser Komplex ergibt mit einem Überschuß von NH4NCS, Pyridin oder Hydrazin die Komplexe [Ni(HL1)NH3NCS] bzw. [Ni(L1)A] (A = Py, N2H4). Die monoanionische Form des Liganden entsteht durch De Protonierung der enolischen Form des Benzoylaceton-Restes, während die dianionische Form durch zusätzliche Deprotonierung der terminalen NH2-Gruppe erhalten wird. Durch Reaktion von [Ni(HL1)NH3]I mit Salicyladehyd wird der NiL2-Komplex erhalten, in dem L2 das Dianion des ONNO-Liganden N(1)-2-Butyliden-4-oxo-4-Phenyl-N(4)-Salicyliden-S-Methylisothiosemicarbazid ist. Alle Komplexe sind diamagnetisch und haben quadratisch-planare Konfiguration, ausgenommen [Ni(HL1)(NH3)NCS], bei dem die IR-Spektren auf quadratisch-pyramidale Struktur weisen. Durch die Absorptionsspektren der Komplexe in Ethanol wird die quadratisch-planare Koordination des NiII belegt.
    Notes: A template synthesis procedure yielded [Ni(HL1)NH3]I, where HL1 is the monoanion of the terdentate ONN benzoylacetone S-methylisothiosemicarbazone ligand. The reaction of this complex with an excess of NH4NCS, pyridine, or hydrazine resulted in the complexes [Ni(HL1)(NH3)NCS] and [Ni(L1)A] (A = Py, N2H4). The monoanionic form of the ligand is obtained by deprotonation of the enolic form of the benzoylacetone moiety, whereas the dianion is formed by additional deprotonation of the terminal NH2 group. Finally, the reaction of [Ni(HL1)NH3]I with salicyladehyde produced the NiL2 complex in which L2 stands for the dianion of the ONNO ligand N(1)-2-butylidene-4-oxo-4-phenyl-N(4)-salicylidene-S-methylisothiosemicarbazide. All complexes are diamagnetic and have a square-planar configuration, except for [Ni(HL1)(NH3)NCS], for which te data of i.r. spectra suggest a square-pyramidal structure. The electronic absorption spectra of the ethanolic solutions of all complexes are characteristic of typical square-planar coordination of nickel(II).
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19915920122
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  • 8
    Electronic Resource
    Electronic Resource
    Synthesis, Thermal Isomerization in Solution and in Solid Phase of the Complexes [Pt(RCN)2Cl2] (1992)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 613 (1992), S. 123-126 
    Details
    ISSN: 0044-2313
    Keywords: Platinum complexes ; cis-trans isomerization ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthese, thermische Isomerisierung in Lösung und in fester Phase der Komplexe [Pt(RCN)2Cl2]Die Umsetzung der Clathrate Pt6Cl12 · 0.1 EtCl · 5, 7 H2O mit Nitrilen RCN ergibt cis- [Pt(PhCH2CN)2Cl2] und [Pt(RCN)2Cl2] (R = CH2CO2Et, Ph) im Gemisch mit trans-Isomeren, die getrennt und charakterisiert werden. Cis- [Pt(MeCN)2Cl2] wird nach bekannter Weise aus K2[PtCl4] und Acetonitril in Wasser dargestellt.Erhitzen von cis-[Pt(RCN)2Cl2] (R = Me, CH2Ph, CH2CO2Et) in fester Phase führt zur cis-trans-Isomerisierung. Die thermische Umwandlung von cis-[Pt(PhCN)2Cl2] in die trans-Form ist mit einer erheblichen Zersetzung des Ausgangs- und/oder Endproduktes verbunden. Kochen von cis-[Pt(PhCH2CN)2Cl2] in EtNO2—PhCH2CN order cis- [Pt(EtCO2CH2CN)2Cl2] in MeNO2 oder EtNO2 ergibt vollständige cis-trans-Umwandlung. Erhitzen von cis-[Pt(RCN)2Cl2] (R = Me, Ph) in Lösung ergibt ein Gleichgewichtsgemisch aus cis und trans-Isomerer.
    Notes: The interaction of the clathrate Pt6Cl12 · 0.1 EtCl · 5.7H2O with RCN nitriles results in cis-[Pt(PhCH2CN)2Cl2] and in [Pt(RCN)2Cl2] (R = CH2CO2Et, Ph) complexes as a mixture of cis- and trans-isomers which separated and characterized. Cis-[Pt(MeCN)2Cl2] has been synthesized using a well known technique of K2[PtCl4] interaction with acetonitrile in water.Heating cis-[Pt(RCN)2Cl2] (R = Me, CH2Ph, CH2CO2Et) in the solid phase leads to cis-trans isomerization. In case of cis-[Pt(PhCN)2Cl2] thermal conversion results in trans-[Pt(PhCN)2Cl2] but the process of geometrical isomerizations accompained by a considerable decomposition of starting material and/or final products. Boiling of cis-[Pt(PhCH2CN2)Cl2] in mixture of EtNO2—PhCH2CN or cis-[Pt(EtCO2CH2CN)2Cl2] in MeNO2 or EtNO2 solutions results in complete cis-trans conversion. Similarily heating of cis-[Pt(RCN)2Cl2] (R = Me, Ph) in solution produces an equilibrium mixture of cis- and transisomers.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19926130122
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  • 9
    Electronic Resource
    Electronic Resource
    Zur Kristallstruktur von CaLaAl3O7 und CaLaGa3-xAlxO7 (x = 0,66) (1993)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 889-892 
    Details
    ISSN: 0044-2313
    Keywords: Calcium ; lanthanum ; aluminium ; gallium ; oxide ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Crystal Structure of CaLaAl3O7 and CaLaGa3-xAlxO7 (x = 0.66)Single crystals of (I): CaLaAl3O7 and (II): CaLaGa2.34Al0.66O7 were grown from molten oxide mixtures and investigated by single crystal X-ray technique. Both compounds crystallize with tetragonal symmetry, space group D2d3—P421m, (I): a = 7.8075; c = 5.1564 Å, (II): a = 7.9130, c = 5.2360 Å, Z = 2 and are isostructural with the Melilites. The crystal structure is discussed.
    Notes: Einkristalle von (I): CaLaAl3O7 und (II): CaLaGa2,34Al0,66O7 wurden aus Schmelzen der Oxidgemenge dargestellt und mit röntgenographischen Methoden untersucht. Beide Oxide kristallisieren tetragonal in der Raumgruppe D2d3—P421m mit (I): a = 7,8075; c = 5,1564 Å, (II): a = 7,9130, c = 5,2360 Å, Z = 2 und sind isotyp mit den Meliliten. Die Kristallstruktur wird diskutiert.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19936190514
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  • 10
    Electronic Resource
    Electronic Resource
    The crystal structure of Bi14I4 condensed bismuth clusters (1992)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 612 (1992), S. 118-122 
    Details
    ISSN: 0044-2313
    Keywords: Bismuth subhalide ; bismuth cluster ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Kristallstruktur von Bi14I4. Kondensierte Bismut-ClusterDie Kristallstruktur von Bi14I4  -  des Endgliedes der bekannten Bismuthalogenide  -  wurde mit röntgenographischen Methoden bestimmt (Einkristall, P21/m, Z = 1, a = 13,309(3) å, b = 11,447 (3) å, c = 4,342 (1) å, γ = 92,08 (3)°, R/Rw = 0,060/0,060 für 369 Reflexe, sinθ/λ ≤ 0,593, MoKα). Die Struktur besteht aus kondensierten Bismut-Clustern und ist aus unendlichen, eindimensionalen Bismut-Netzen aufgebaut, die sich entlang der c-Achse erstrecken und an den Enden Iodatome tragen.Die Besonderheiten der Bismutsubhalogenide, die auch kondensierte Cluster enthalten, werden in bezug auf Bindungslängen und Bindungswinkel besprochen. Die Einwirkung des einsamen Elektronenpaares des Bismutatoms auf die Gestalt der Koordinationspolyeder wird ebenso diskutiert wie der Zusammenhang zwischen der Koordination und der Oxidationsstufe der Bi-Atome.
    Notes: The crystal structure of Bi14I4  -  the final known member of binary bismuth halides  -  was determined by the single crystal X-ray diffractometer technique (P21/m, Z = 1, a = 13.309(3) Å, b = 11.447 (3) å, c = 4.342(1) å, γ = 92.08(3)°, R/Rw = 0.060/0.060 for 369 reflections, sinθ/λ≤ 0.593, MoKγ). The structure consists of condensed bismuth clusters and is build up from infinite one-dimensional bismuth nets running along the c-axis and limited by iodine atoms in another direction.The common structural features of bismuth subhalides containing condensed clusters are also considered based on the analysis of interatomic distances and bond angles. The influence of the lone pair of electrons of the bismuth atom on the geometry of bismuth coordination polyhedra, and the connection between bismuth atoms coordination and the formal oxidation state of these atoms is discussed.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19926120120
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