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  • Inorganic Chemistry  (3)
  • Bis(phosphido)-bridged diiron hexa(penta)carbonyl complexes, molecular structures  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Intramolekular stabilisierte Übergangsmetallamide: 2-(Dimethylaminomethyl)pyrrolyl-Komplexe des Titan(III), Vanadium(III), Chrom(III), Cobalt(II) und Nickel(II) (1996)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 129 (1996), S. 853-857 
    Details
    ISSN: 0009-2940
    Keywords: Amides ; Pyrrolyl complexes ; Chelate complexes ; Transition-metal complexes ; Metallacycles ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Intramolecularly Stabilized Metal Amides: 2-(Dimethylaminomethyl)pyrrolyl Complexes of Titanium(III), Vanadium(III), Chromium(III), Cobalt(II) and Nickel(II)By the metallation of 2-(dimethylaminomethyl)pyrrol (HL) with butyllithium the lithium pyrrolide LiL (1) was obtained. The reactions of 1 with TiBr3 · 3 THF, VBr3 · 3 THF, CrBr3 · 3 THF, CoBr2 · 2 THF, and NiBr2 · 1.67 THF result in the formation of the 2-(dimethylaminomethyl)pyrrolyl complexes of type ML3 (2-4), and ML2 (5, 6), respectively. The structures of these new compounds are discussed on the basis of magnetic and visible absorption measurements. An X-ray crystal structure determination of 4 reveals a strongly distorted octahedral environment of the chromium atom with facial arrangement of the ligands.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19961290719
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  • 2
    Electronic Resource
    Electronic Resource
    Ein ungewöhnliches Paar Bis(phosphido)-verbrückter Dieisencarbonylkomplexe: [Fe2(CO)n{μ-P(tBu)2}(μ-PCy2)] (n = 5 und 6) (1992)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 125 (1992), S. 1379-1382 
    Details
    ISSN: 0009-2940
    Keywords: Bis(phosphido)-bridged diiron hexa(penta)carbonyl complexes, molecular structures ; Steric strain ; Iron-iron double bond ; Calculations, EHT ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: An Unusual Pair of Bis(phosphido)-Bridged Diiron Carbonyl Complexes: [Fe2(CO)n{μ-P(tBu)2}(μ-PCy2)] (n = 5 and 6)Treatment of Na[Fe2(CO)6(μ-CO){μ-P(tBu)2}] with Cy2PCl gives [Fe2(CO)6{μ-P(tBu)2}(μ-PCy2)] (1) which loses CO on heating in toluene to afford [Fe2(CO)5{μ-P(tBu)2}(μ-PCy2)] (2). Complexes 1 and 2 have been characterized spectroscopically and by X-ray analyses. The central Fe2P2 unit in 1 is exactly planar whereas in 2 it is somewhat folded.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19921250612
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  • 3
    Electronic Resource
    Electronic Resource
    Syntheses and Molecular Structures of 2-(1-Methyliminoethyl)phenolato Zinc Complexes (1996)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 1941-1945 
    Details
    ISSN: 0044-2313
    Keywords: Zinc complexes ; oxygen, nitrogen chelate ligands ; crystal structure ; diethyl zinc ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthese und Molekülstruktur von 2-(1-Methyliminoethyl)phenolatozinkkomplexenDie Reaktion zwischen 2-(1-Methyliminoethyl)phenol (1 a) und Zinkdiethyl ergibt Bis[2-(1-methyliminoethyl)phenolato]zink (3) und [2-(1-Methyliminoethyl)phenolato]ethylzink (2) als Intermediat. Der Komplex 3 wird auch in der Reaktion von Zink-bis(trimethylsilyl)amid mit 1 a gebildet. Die Verbindungen wurden durch Elementaranalyse, NMR (1H, 13C) und IR-Spektroskopie charakterisiert. Die Röntgenkristallstrukturanalyse von 2 und 3 zeigt, daß beide Verbindungen in der festen Phase dimer sind, in denen die monomeren Einheiten durch zwei Sauerstoffatome und Ausbildung eines planaren Zn2O2-Ringes mit tetraedrischer [ZnO2NC]- bzw. trigonal-bipyramidaler [ZnO3N2]-Koordination des Zinkatoms verbrückt sind.
    Notes: 2-(1-Methyliminoethyl)phenol (1 a) reacts with diethyl zinc to give bis[2-(1-methyliminoethyl)phenolato]zinc (3) via [2-(1-methyliminoethyl)phenolato]ethylzinc (2) as an intermediate. The complex 3 is also formed in the reaction of bis(trimethylsilyl)amide zinc with 1 a. The compounds were characterized by microanalysis, NMR (1H, 13C) and IR spectroscopy. X-ray structure analysis of the compounds 2 and 3 revealed that both compounds form in the solid state dimeric species where the monomeric units are bridged via two oxygen atoms forming a planar Zn2O2 ring with tetrahedral [ZnO2NC] and trigonal-bipyramidal [ZnO3N2] coordination of the zinc atom, respectively.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19966221121
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