Single-crystal absorption spectra of CsVX<sub>3</sub> (X = Cl,Br, I)期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Single-crystal absorption spectra of CsVX₃ (X = Cl,Br, I)

Authors:	Andreas Hauser Hans U. Güdel

Affiliation:	Instititt für Attorganische Chemie, Universität Bern, CH-3000 Bern 9, Switzerland

Abstract:	Polarized single-crystal absorption spectra of CsVCl₃, CsVBr₃ and CsVI₃ have been measured between 5000 and 30000 cm^?1 at temperatures ranging from 6 to 273 K. Spin-allowed transitions arise through a vibronic single-ion mechanism. Spin-forbidden transitions are strongly enhanced through an exchange intensity mechanism.

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