Absorption Spectra and Circular Dichroisms of Metal Complexes. III. trans-Dihalogeno-bis-l-propylenediamine Complexes of Cobalt(III), Rhodium(III), Palladium(IV) and Platinum(IV)
Absorption Spectra and Circular Dichroisms of Metal Complexes. III. trans-Dihalogeno-bis-l-propylenediamine Complexes of Cobalt(III), Rhodium(III), Palladium(IV) and Platinum(IV)
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金属配合物的吸收光谱和圆二色性。
DOI：
10.1246/bcsj.42.1286
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发表时间：
1969
影响因子：
4
通讯作者：
Kazuo Saito
中科院分区：
文献类型：
--
作者：
Haruko Ito;J. Fujita;Kazuo Saito
通过将反式-[MX2(l-pn)2]n+（其中 M=RhIII、PdIV- 和 PtIV-，X=Cl− 和 Br−）的吸收 (AB) 和圆二色性 (CD) 光谱与已广泛研究的钴 (III) 配合物进行比较，进行了讨论。除反式-[PtBr2(l-pn)2]2+ 外，在所研究的所有配合物的所谓 Ia 带区域周围观察到正 CD 峰。该络离子在 26000 cm−1 处的负 CD 峰被指定为 Ia 带的分裂分量。反式-[PtCl2(l-pn)2]2+、反式-[PdCl2(l-pn)2]2+ 和反式-[PtBr2(l-pn)2]2+ 分别在 38000、28600 和 31100 cm−1 处的 AB 峰被分配给 pπ→dz2 电荷转移跃迁。在1N氢溴酸中观察到反式-[PtBr2(l-pn)2]Br2的离子缔合带。
Absorption (AB) and circular dichroism (CD) spectra of trans-[MX2(l-pn)2]n+ (where M=RhIII, PdIV- and PtIV-, and X=Cl− and Br−) have been discussed by comparing them with those of cobalt (III) complexes which had been studied extensively. A positive CD peak was observed at around the so called Ia band region of all the complexes studied except for trans-[PtBr2(l-pn)2]2+. A negative CD peak of this complex ion at 26000 cm−1 was assigned to be a split component of the Ia band. The AB peaks at 38000, 28600 and 31100 cm−1 for trans-[PtCl2(l-pn)2]2+, trans-[PdCl2(l-pn)2]2+ and trans-[PtBr2(l-pn)2]2+ respectively were assigned to pπ→dz2 charge transfer transition. An ion association band was observed for trans-[PtBr2(l-pn)2]Br2 in 1N hydrobromic acid.