Solid-state structures of trans-[RuCl2{Cl2PN(Me)N(Me)PCl2}2] and cis-[MCl2{Cl2PN(Me)N(Me)PCl2}] (M = PtII and PdII) studied by x-ray Crystallography and 13C CPMAS NMR spectroscopy

被引:3
|
作者
Takara, Satoshi [1 ]
Batsanov, Andrei S.
Schaffer, Douglas J.
Takase, Michael
Kunishige, Janice A.
Lee, Susan J.
机构
[1] Univ Ryukyus, Fac Sci, Dept Chem Biol & Marine Sci, Nishihara, Okinawa 9030213, Japan
[2] Univ Hawaii Manoa, Dept Chem, Honolulu, HI 96822 USA
[3] Univ Durham, Dept Chem, Durham DH1 3LE, England
关键词
D O I
10.1246/bcsj.80.1776
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Solid-state structures of trans-[RuCl2 ( Cl2PN(Me)N(Me)PCl2}(2)] (1), cis-[PdCl2 {Cl2PN(Me)N(Me)PCl2}] (2), and cis-[PtCl2{Cl2PN(Me)N(Me)PCl2}] (3) were studied by using (13)CCPMAS NMR spectroscopy and X-ray crystallography. The ruthenium atom in 1 was on a crystallographic inversion center and had a slightly distorted octahedral coordination. 2 and 3 contained palladium and platinum atoms in a square-planar geometry, respectively. In 2, axial sites of the Pd atom were filled by intermolecular Pd Cl contacts to form an infinite chain. Molecules of 3 pack in an edge-toface manner and no obvious "axial" contacts at the Pt atom were observed. Different geometries of hydrazide nitrogens in 1, 2, and 3 were observed: in 1 and 2, one of the nitrogen atoms was trigonal planar and the other one was pyramidal; the two hydrazine nitrogen atoms in 3 had trigonal planar geometry. (13)CCPMAS NMR spectra are consistent with X-ray data. The P-N distances are shorter than normally accepted P-N single bond lengths, suggesting a degree of P-N pi bonding.
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页码:1776 / 1779
页数:4
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