THE 1,2-DIHYDRO-1,2-DIPHOSPHETE-1,4-DIPHOSPHADIENE EQUILIBRIUM - X-RAY STRUCTURES OF [MU-2,MU-2,ETA-1,ETA-1-(PH)8C4P4]W2(CO)6 AND [ETA-1,ETA-1-(PH)4C2P2]W2(CO)10

被引：17

作者：

MAIGROT, N ^{[1
]}

CHARRIER, C ^{[1
]}

RICARD, L ^{[1
]}

MATHEY, F ^{[1
]}

机构：

[1] ECOLE POLYTECH,DCPH,CHIM PHOSPHORE & MET TRANSIT LAB,F-91128 PALAISEAU,FRANCE

来源：

POLYHEDRON | 1990年 / 9卷 / 11期

关键词：

D O I：

10.1016/S0277-5387(00)84016-4

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

As its P2W2(CO)10 dicomplex, the ring of 1,2,3,4-tetraphenyl-1,2-dihydro-1,2-diphosphete undergoes a reversible conrotatory opening to give the corresponding 1,4-diphosphadiene dicomplex which can be trapped as [4+2] cycloadducts with N-phenylmaleimide, maleic anhydride, acrylonitrile and benzaldehyde. X-ray crystal structure analysis indicates a weakening of the PP bond of the 1,2-dihydro-1,2-diphosphete upon complexation: the PP bond length increases from 2.248(1) Å in the free ring to 2.281(3) Å in the complex explaining why this reversible opening takes place only in the complex. © 1990.

引用

页码：1363 / 1367

页数：5

共 11 条

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