Phosphane ligands .6. The remarkable tridentate coordination of 4,6-bis(diphenylphosphanyl)dibenzofuran in ruthenium(II) complexes

被引：11
|
作者：
Vogl, EM [1 ]
Bruckmann, J [1 ]
Kessler, M [1 ]
Kruger, C [1 ]
Haenel, MW [1 ]
机构：
[1] MAX PLANCK INST KOHLENFORSCH,D-45470 MULHEIM,GERMANY
来源：
CHEMISCHE BERICHTE-RECUEIL | 1997年 / 130卷 / 09期
关键词：
ruthenium; chelating diphosphane ligand; phosphane; dibenzofuran; tridentate ligands; X-ray scattering; crystal engineering;
D O I：
10.1002/cber.19971300922
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
4,6-Bis (diphenylphosphanyl) dibenzofuran (1), despite its large P ... P distance of 5.74 Angstrom and its bite angle of ca. 131 degrees, was found to be capable of tridentate coordination to ruthenium(II) chloride. Single crystal X-ray structure analyses of the new ruthenium(II) complexes 3, 4, and 5 revealed that the ligand 1 coordinates to a single ruthenium atom with both phosphorus centers and the dibenzofuran oxygen atom. The remarkable ligand deformation resulting from the coordination is evident from the decrease of the P ... P distance by 1 Angstrom to 4.75 Angstrom and the increase of the bite angle (P-Ru-P) by 25 degrees to 155 degrees-157 degrees. The unprecedented in-plane coordination of the dibenzofuran oxygen atom to ruthenium is interesting in view of the hybridisation of the oxygen.
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收藏
页码：1315 / 1319
页数：5
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