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  • Articles  (101)
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  • Articles  (101)
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  • 1
    Electronic Resource
    Electronic Resource
    Supramolecular organolead(IV) and -tin(IV) systems [(Me3EIV)3MIII(CN)6].infin. (E = Pb or Sn, M = Co or Fe): comparative x-ray diffraction and solid-state multinuclear magnetic resonance studies (1992)
    s.l. : American Chemical Society
    Organometallics 11 (1992), S. 1718-1726 
    Details
    ISSN: 1520-6041
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/om00040a049
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  • 2
    Electronic Resource
    Electronic Resource
    Disorder determined by high-resolution powder diffraction: structure of pentamethylcyclopentadienyllithium (1999)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 55 (1999), S. 35-44 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The crystal structure of pentamethylcyclopentadienyllithium, [Li(C10H15)] (LiCp*), has been determined from a high-resolution powder pattern by modelling and the maximum entropy method (MEM). The compound crystallizes in space group R3m with lattice parameters a = b = 14.7711 (5), c = 3.82206 (6) Å and V = 722.19 (4) Å3 (Z = 3). LiCp* forms polymeric `multidecker' chains along the c axis. The pentamethylcyclopentadienyl anions are coplanar with each other and show threefold rotational disorder. The MEM calculations did not only confirm the structural model and the type of disorder, but also discovered additional symmetry compared with the Rietveld analysis. This is the first solid-state structure of a Lewis-base-free alkali metal Cp* compound.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108768198007009
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  • 3
    Electronic Resource
    Electronic Resource
    Übergangsmetall-Fulven-Komplexe, VIII: Photochemische Substitution des Aromaten in (Aromat)Cr(CO)3-Komplexen durch Fulvene (1978)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 111 (1978), S. 817-818 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Transition Metal Fulvene Complexes, VIII: Photochemical Substitution of Arene in (Arene)Cr(CO)3 Complexes by FulvenesFor the first time a photochemical reaction of (arene)tricarbonylchromium complexes is described, in which the arene is displaced by a cyclic triene. By this method (fulvene)Cr(CO)3 complexes are formed nearly quantitatively.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19781110245
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  • 4
    Electronic Resource
    Electronic Resource
    Übergangsmetall-Fulven-Komplexe, XI. Synthese und Eigenschaften von Fulvenkomplexen des Dicarbonyl(cyclopentadienyl)mangans (1978)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 111 (1978), S. 2895-2900 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Transition Metal Fulvene Complexes, XI1) Synthesis and Properties of Fulvene Complexes of Dicarbonyl(cyclopentadienyl)manganeseTricarbonyl(cyclopentadienyl)manganese reacts photochemically with fulvenes (I-V) to give mixtures of mono- and binuclear compounds (1-3), of which one or both of the ring double bonds are coordinated to a C5H5Mn(CO)2 group. The iron complex (diphenylfulvene)Fe2 (CO)5, so far only available in 0.4% yield, is now easily available in 45% yield by exchange of the fulvene ligand from (diphenylfulvene)(CH3C5H4) Mn(CO)2 (1e) to Fe2 (CO)9.
    Notes: Tricarbonyl(cyclopentadienyl)mangan reagiert photochemisch mit Fulvenen (I-V) zu Gemischen von ein- und zweikernigen Verbindungen (1-3), bei denen eine oder beide Ringdoppelbindungen an eine C5H5Mn(CO)2-Einheit koordiniert sind. Der bisher nur in 0.4 proz. Ausbeute isolierbare Eisenkomplex (Diphenylfulven)Fe2 (CO)5 wurde durch Übertragung des Fulvenliganden von (Diphenylfulven)(CH3C5H4)Mn(CO)2 (1e) auf Fe2 (CO)9 in 45% Ausbeute zugänglich.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19781110816
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  • 5
    Electronic Resource
    Electronic Resource
    Chalkogenolat-Ionen und ihre Derivate, III. Kristall- und Molekülstruktur von Tetraphenylphosphonium-tris(tellurophenolato)mercurat(II) (1977)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 110 (1977), S. 3672-3677 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Chalcogenolate Ions and their Derivatives, III. Crystal and Molecular Structure of Tetraphenylphosphonium Tris(tellurophenolato)mercurate(II)The structure of the title compound 1c has been determined from single crystal X-ray data and refined to an R-value of 0.049 using 3509 symmetry-independent reflections. 1c crystallizes in the space group P21/c, and has an ionic structure with isolated cations and anions. In the trigonale planar anion [Hg(TePh)3]-, the ligands have a propeller-like arangement about the central Hg-atom. The mean Hg-Te distance is 269.7 pm.
    Notes: Die Struktur der Titelverbindung 1c wurde aus Diffraktometer-Einkristalldaten bestimmt und für 3509 symmetrieunabhängige Reflexe zu einem R-Wert von 0.049 verfeinert. 1c kristallisiert in der Raumgruppe P21/c und besitzt eine salzartige Struktur mit isolierten Kationen und Anionen. Im trigonal ebenen Anion [Hg(TePh)3]- sind die Liganden propellerartig um das zentrale Hg-Atom angeordnet. Der mittlere Hg—Te-Abstand beträgt 269.7 pm.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19771101121
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  • 6
    Electronic Resource
    Electronic Resource
    Übergangsmetall-Fulven-Komplexe, XX. Carbonylmetallkomplexe mit dimeren Fulvenliganden (1982)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 115 (1982), S. 3049-3062 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Transition Metal Fulvene Complexes, XX. Carbonyl Metal Complexes with Dimeric Fulvene LigandsThe synthesis and structure of four complexes (3a, 7, 9, 10) with dimeric fulvene ligands are reported. The compounds are formed in low yields by reaction of unsubstituted fulvene with Fe2(CO)9 (3a), of 6,6-diethylfulvene with Fe2(CO)9 (7), and of 6,6-bis(methylthio)fulvene with (CH3CN)3Mo(CO)3 (9 and 10), respectively. Moreover the structure of dimeric dimethylfulvene (11) has been determined by X-ray diffraction.
    Notes: Es wird über die Synthese und Struktur von vier Komplexen (3a, 7, 9, 10) mit dimeren Fulvenliganden berichtet. Die Verbindungen entstehen in geringer Ausbeute bei der Reaktion von unsubstituiertem Fulven mit Fe2(CO)9 (3a), von 6,6-Diethylfulven mit Fe2(CO)9 (7) bzw. von 6,6-Bis(methylthio)fulven mit (CH3CN)3Mo(CO)3 (9 und 10). Zusätzlich wurde die Struktur des dimeren Dimethylfulvens (11) röntgenographisch bestimmt.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19821150911
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  • 7
    Electronic Resource
    Electronic Resource
    Stabilisierung von Uran(IV)-Alkylen durch raumerfüllende Chelatliganden: Molekülstruktur von [PhC(NSiMe3)2]3UMe (1992)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 125 (1992), S. 1313-1318 
    Details
    ISSN: 0009-2940
    Keywords: Actinides, organo- ; Uranium complexes ; σ-Alkyl complexes ; Chelating ligands ; Benzamidinate ligands ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Stabilization of Uranium(IV) Alkyls by Bulky Chelating Ligands: Molecular Structure of [PhC(NSiMe3)2]3UMeChelate ligand-stabilized uranium σ-methyl complexes are obtained in good yields by treatment of [RC6H4C-(NSiMe3)2]3UCl (1) with methyllithium. The molecular structure of [PhC(NSiMe3)2]3UMe (3a) has been determined by X-ray crystallography. A long uranium - carbon bond [249.8(5) pm] indicates steric crowding in the molecule. Analogously the dimethyluranium complex [(CF3)3C6H2C(NSiMe3)2]2UMe2 (4b) is prepared from [(CF3)3C6H2C(NSiMe3)2]2UCl2 and two equivalents of methyllithium. Reaction of 1 with NaBH4 yields the tetrahydroborates [RC6H4C(NSiMe3)2]3UBH4 (5). The strongly temperature-dependent 1H-NMR spectra of the complexes 1 and 3 have been studied in detail.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19921250603
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  • 8
    Electronic Resource
    Electronic Resource
    Übergangsmetall-Fulven-Komplexe, XXII. Tricarbonyl(formylcyclopentadienyl)metallat-Anionen des Chroms, Molybdäns und Wolframs (1984)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 3463-3472 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Transition Metal Fulvene Complexes, XXII1). Tricarbonyl(formylcyclopentadienyl)metallate Anions of Chromium, Molybdenum and TungstenThe synthesis of the tricarbonyl(formylcyclopentadienyl)metallate anions of chromium, molybdenum and tungsten is reported. The structure of tetraphenylphosphonium-tricarbonyl(formylcyclopentadienyl)chromate has been determined by X-ray diffraction.
    Notes: Es wird über die Synthese der Tricarbonyl(formylcyclopentadienyl)metallat-Anionen des Chroms, Molybdäns und Wolframs berichtet. Die Struktur des Tetraphenylphosphonium-tricarbonyl(formylcyclopentadienyl)chromats wurde röntgenographisch bestimmt.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19841171215
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  • 9
    Electronic Resource
    Electronic Resource
    Übergangsmetall-Fulven-Komplexe, XXIII. Tricarbonyl-Fulven- und Tricarbonyl-Cyclopentadienyl-Komplexe des Molybdäns and Wolframs (1985)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 118 (1985), S. 888-894 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Transition Metal Fulvene Complexes, XXIII. Tricarbonyl Fulvene and Tricarbonyl Cyclopentadienyl Complexes of Molybdenum and TungstenIn contrast to the reaction of fulvenes with (CH3CN)3Cr(CO)3, which leads to pure (fulvene)Cr- (CO)3 complexes, the reaction of L3M(CO)3 [L3 = 3 CH3CN, diglyme; M = Mo, W] with fulvenes gives a mixture of (fulvene)M(CO)3 (2) and substituted dimeric (cyclopentadienyl)2M2-(CO)6 complexes (3) difficult to separate. The structure of bis(η5-benzhydrylcyclopentadienyl)- hexacarbonyldimolybdenum (3a) has been determined by X-ray diffraction. The (fulvene)Mo-(CO)3 complex 4 reacts with tertiary phosphanes and methylenetriphenylphosphorane to give the zwitterionic addition products 5 and 6.
    Notes: Im Gegensatz zu Reaktion von Fulvenen mit (CH3CN)3Cr(CO)3, die zu reinen (Fulven)Cr-(CO)3-Komplexen führen, gibt die Umsetzung von L3M(CO)3 [L3 = 3 CH3CN, diglyme; M = Mo, W] mit Fulvenen eine Mischung aus (Fulven)M(CO)3 (2) und substituierten dimeren (Cyclopentadienyl)2M2(CO)6-Komplexen (3), die schwierig zu trennen ist. Die Struktur des Bis(η5-benzhydrylcyclopentadienyl)hexacarbonyldimolybdäns (3a) wurde röntgenographisch bestimmt. Der (Fulven)Mo(CO)3-Komplex 4 reagiert mit tertiären Phosphanen und Methylentriphenylphosphoran zu den zwitterionischen Additionsprodukten 5 und 6.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19851180306
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  • 10
    Electronic Resource
    Electronic Resource
    Übergangsmetall-Fulven-Komplexe, XXIV. Synthese und Struktur von (μ-η5:η1-6,6-Diphenylfulven)-diruthenium(Ru—Ru)- und -dieisen(Fe—Fe)-Komplexen (1986)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 119 (1986), S. 96-106 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Transition Metal Fulvene Complexes, XXIV. Synthesis and Structure of (μ-η5:η1-6,6-Diphenylfulvene)diruthenium(Ru—Ru)- and-diiron(Fe—Fe) ComplexesThe synthesis of complexes of the type (μ-η5:η1-6,6-diphenylfulvene)M2(CO)5(L) [M = Ru, Fe; L = CO, PR3, SbPh3, CN-] (2a-k) is reported. The structure of (μ-η5:η1-6,6-diphenylfulvene)(CO)2Ru—Ru(CO)3(SbPh3) (2g) has been determined by X-ray diffraction.
    Notes: Es wird über die Synthese von Komplexen des Typs (μ-η5:η1-6,6-Diphenylfulven)-M2(CO)5(L) [M = Ru, Fe; L = CO, PR3, SbPh3, CH2PPh3, CN-] (2a-k) berichtet. Die Struktur von (μ-η5:η1-6,6-Diphenylfulven)(CO)2Ru—Ru(CO)3(SbPh3) (2g) wurde röntgenographisch bestimmt.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19861190110
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