Effects of solvation on charge distribution of 1,2-semiquinonato/catecholatocobalt complexes containing bis(3-pyridyl) phenylvinylsilane |
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| Authors: | Woosik Hong Sojung Lee Haeri Lee Tae Hwan Noh Young-A Lee Ok-Sang Jung |
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| Institution: | 1. Department of Chemistry and Research Institute of Functional Materials Chemistry, Pusan National University, Pusan, 609-735, Korea
2. Department of Chemistry, Chonbuk National University, Jeonju, 561-756, Korea
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| Abstract: | Recrystallization of Co(3,5-dbbq)2(L)2] (3,5-dbbq?=?3,5-di-tert-butyl-1,2-benzoquinone; L?=?bis(3-pyridyl)phenylvinylsilane) from diethyl ether at ?20?°C produces trans-Co(3,5-dbbq)2(L)2] while the recrystallization from toluene at ?20?°C gives trans-Co(3,5-dbbq)2(L)2]·2PhMe. The complex exists as trans-CoIII(3,5-dbsq)(3,5-dbcat)(L)2] (3,5-dbsq?=?3,5-di-tert-butyl-1,2-semiquinonato; 3,5-dbcat?=?3,5-di-tert-butylcatecholato) in the solid state at 173?K. Differences in charge distribution between trans-Co(3,5-dbbq)2(L)2] and trans-Co(3,5-dbbq)2(L)2]·2PhMe have been observed based on the effective magnetic moments and IR spectra of the complexes along with their X-ray crystal structures. |
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