Stable neutral radicals of planar N2O2-type dipyrrin platinum complexes: hybrid radicals of the delocalized organic π-orbital and platinum d-orbital

被引：20
|
作者：
Yamamura, M. [1 ]
Takizawa, H. [1 ]
Gobo, Y. [1 ]
Nabeshima, T. [1 ]
机构：
[1] Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba Res Ctr Interdisciplinary Mat Sci TIMS, Tennodai 1-1-1, Tsukuba, Ibaraki 3058571, Japan
来源：
DALTON TRANSACTIONS | 2016年 / 45卷 / 16期
关键词：
ELECTRONIC-STRUCTURES; INTERCONVERSION; NI;
D O I：
10.1039/c5dt05039a
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Neutral radicals of N2O2-dipyrrin platinum complexes were synthesized by the reaction of dipyrrin ligands with PtCl2(cod) and successive one-electron oxidation. The radicals are very stable even under aerobic and ambient conditions. X-ray crystallographic analysis revealed the stacking array of the planar dipyrrin complex moieties. The ESR signals were broadened and significantly downfield shifted. The absorption spectra exhibited NIR bands. These results indicated a delocalized radical character with a contribution by the platinum d-orbital.
引用
收藏
页码：6834 / 6838
页数：5
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