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利用一种处理低对称络离子吸收谱强场方案,推出d~5系C_(2h)点群不可约表示对应的能量矩阵。考虑振动电子偶合及双电子激发,解释了MnCl_2·2H_2O晶体中Mn~(2+)的复杂吸收谱。确认了Mn~(2+)络离子晶场的C_(2h)对称性。
Using a scheme to deal with strong field of low symmetry ion exchange spectrum, the corresponding energy matrix of d_5 series C_ (2h) point group irreducible is deduced. Considering vibrational electron coupling and double electron excitation, the complex absorption spectra of Mn 2+ in MnCl_2 · 2H_2O crystal were explained. The C_ (2h) symmetry of the Mn ~ (2+) ion field was confirmed.