Formation and Photodissociation of Copper-selenium Clusters

Abstract

Abstract: The formation and photodissociation of Cu/Se binary clusters were studied on the laser ablation tandem time-of-flight mass spectrometer. It was found that the cations [Cu(Cu₂Se)_n]⁺ and [(Cu₂Se)_n]⁺, the anions [CuSe(Cu₂Se)]^-, [(Cu₂Se)_nSe]^- were the main products. In the photodissociation experiment of Cu_nSe_m⁺, [Cu(Cu₂Se)_n]⁺ and [(Cu₂Se)_n]⁺ were the main products. The structures and photodissociation channels of Cu₃Se⁺, Cu₅Se₂⁺ were studied by using a kind of "DFT" method, in which the LANL2DZ basis was used.

Key words: Cu/Se cluster, Laser ablation, Tandem time-flight mass spectrum, UV photodissociation, Density function theory

CLC Number:

O657.6

TrendMD:

CHEN Yun-Qing, XING Xiao-Peng, GAO Zhen, ZHU Qi-He . Formation and Photodissociation of Copper-selenium Clusters[J]. Chem. J. Chinese Universities, 2002, 23(11): 2147.

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Formation and Photodissociation of Copper-selenium Clusters

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