ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
The reaction of NH2NHC(O)SMe with MoO2(S2CNEt2)2 and MoO2(ONEt2)2 yields the diazenido-hydrazido complexes [Mo(NNC(O)SMe)(NH2NC(O)SMe)(S2CNEt2)2] · CH2Cl2 (2) and [(μ-OMe)Mo(NNC(O)SMe)(NH2NC(O)SMe)(ONEt2)]2 (4), respectively. X-ray structure analysis shows that 2 contains the side-on hydrazido(1 - ) ligand NH2NC(O)SMe, whereas in 4 the same ligand is N,O-chelated. In 2 the Mo - N distances are 213.1(7) and 213.4(5) pm, the N - N distance is 140.4(9) pm. The nitrogen atoms are sp3 hybridized. Possible factors influencing the coordination mode of hydrazido(1 - ) ligands, i.e. side on, end on, or chelating, are discussed.
Notes:
Die Reaktion von NH2NHC(O)SMe mit MoO2(S2CNEt2)2 und MoO2(ONEt2)2 ergibt die Diazenido-Hydrazido-Komplexe [Mo(NNC(O)SMe)(NH2NC(O)SMe)(S2CNEt2)2] · CH2Cl2 (2) bzw. [(μ-OMe)Mo(NNC(O)SMe)(NH2NC(O)SMe)(ONEt2)]2 (4). Röntgenstrukturanalysen von 2 und 4 ergaben, daß der Hydrazido(1 - )-Ligand NH2NC(O)SMe in 2 symmetrisch “side on”, im dimeren 4 dagegen als N,O-Chelat gebunden ist. Die Mo-N-Abstände in 2 betragen 213.1(7) und 213.4(5) pm, der N - N-Abstand 140.4(9) pm. Die Stickstoffatome sind sp3-hybridisiert. Mögliche Faktoren für die “side-on”-, “end-on”-oder chelatartige Koordination von Hydrazido(1 - )-Liganden werden diskutiert.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19871200516
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