A vibronic coupling approach for the interpretation of the g-value temperature dependence in type-I copper proteins
A vibronic coupling approach for the interpretation of the g-value temperature dependence in type-I copper proteins
复制标题
用于解释 I 型铜蛋白 g 值温度依赖性的振动耦合方法
DOI：
10.1039/f19878303693
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
S. Cannistraro
中科院分区：
文献类型：
--
作者：
M. Bacci;S. Cannistraro
含i型（伪四面体）中心的铜蛋白的e- s.r.谱显示，随着温度的升高，g‖值逐渐降低。这一事实是基于振动耦合机制来解释的，该机制在伪四面体铜（II）配合物中有效，而在方形平面的配合物中无效。一种理论被发展用来解释g‖值的移动以及d-d跃迁能量。还提出了振动耦合的功能作用。
The e.s.r. spectra of copper proteins containing type-I (pseudo-tetrahedral) centres show a gradual decrease of the g‖ values with increasing temperature. This fact is interpreted on the basis of a vibronic coupling mechanism which is effective in pseudo-tetrahedral copper(II) complexes, but not in the square-planar ones. A theory is developed to account for the shift of the g‖ values as well as for the d-d transition energies. A functional role of the vibronic coupling is also suggested.