SYNTHESIS OF CYCLOMETALLATED COMPLEXES OF PD(II) - THE X-RAY CRYSTAL-STRUCTURE OF DI-MU-BROMO-BIS[N-(3,4-DIMETHOXYBENZYLIDENE)CYCLOHEXYLAMINATO-C6,N]DIPALLADIUM(II)

被引:67
作者
VILA, JM [1 ]
GAYOSO, M [1 ]
PEREIRA, MT [1 ]
ROMAR, A [1 ]
FERNANDEZ, JJ [1 ]
THORNTONPETT, M [1 ]
机构
[1] UNIV LEEDS, SCH CHEM, LEEDS LS2 9JT, W YORKSHIRE, ENGLAND
关键词
D O I
10.1016/0022-328X(91)86235-I
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The structure of the cyclometallated bromo-bridged palladium(II) dimer complex [Pd activated {3,4-(MeO)2C6H2C(H) = NCy}(Br)]2 is described. This is the first example of a structurally characterised cyclometallated bromo-bridged dimer. Crystals were triclinic, space group P1BAR with a = 788.7(2), b = 911.0(3), c = 1480.(4) pm, alpha = 96.94(2), beta = 91.57(2), gamma = 101.85(2)-degrees, Z = 1, U = 1.0322(5) nm3, R = 0.0688, R(W) = 0.790, for 3280 independent reflections with F > 4.0-sigma(F). The structure is a centrosymmetric palladium dimer with two asymmetrically bridging bromine atoms and non-bonding Pd...Pd distance of 363.1(5) pm. The synthesis of the iodo-bridged analogue and the reactions of these two dimers and the chloro-bridged analogue with various tertiary phosphines are also described.
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页码:385 / 394
页数:10
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