Characterization of ruthenium-dinitrogen tetraamine complexes by XAFS spectroscopy

被引：9

作者：

Okamoto, K

Takahashi, T

Kohdate, K

Kondoh, H

Yokoyama, T

Ohta, T

机构：

[1] Univ Tokyo, Sch Sci, Dept Chem, Bunkyo Ku, Tokyo 1130033, Japan

[2] Natl Inst Adv Interdisciplinary Res, Tsukuba, Ibaraki 3058562, Japan

来源：

JOURNAL OF SYNCHROTRON RADIATION | 2001年 / 8卷

关键词：

dinitrogen bridging; binuclear ruthenium complex;

D O I：

10.1107/S0909049500015971

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A reaction between N-2 and trans-(RuCl2L)-Cl-II (L= 2, 5,9,12-tetramethyl-2, 5, 9,12-tetraazatridecane) in aqueous solutions has been investigated by XAFS spectroscopy. Ru K-edge EXAFS clearly revealed that there exists an N-2-bridged binuclear complex and that the Ru-Ru distance is 4.96 Angstrom with the coordination number of 0.5. The Ru K-edge energies of the N-2 complexes are closer to that of (RuCl2L+)-Cl-III rather than that of (RuCl2L)-Cl-II, indicating back donation from the Ru d pi to the N-2 pi* orbitals.

引用

页码：689 / 691

页数：3

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