固态氩中OSc(N₂)、OScNN和OScNN⁺配合物的红外光谱与结构

Infrared spectra and structures of the OSc(N2), OScNN, and OScNN+ complexes in solid argon.

作者信息

Zhou Mingfei, Wang Guanjun, Zhao Yanying, Chen Mohua, Ding Chuanfan

机构信息

Department of Chemistry & Laser Chemistry Institute, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, P. R. China.

出版信息

J Phys Chem A. 2005 Jun 16;109(23):5079-84. doi: 10.1021/jp050975b.

DOI:10.1021/jp050975b

PMID:16833861

Abstract

Scandium monoxide-dinitrogen complexes-OSc(N2), OScNN, and OScNN+-have been prepared by the reactions of laser-evaporated scandium monoxide with N2 or scandium atoms with N2O in solid argon. The ground-state scandium monoxide molecule reacted with N2 to form the side-bonded OSc(N2) complex spontaneously on annealing. This complex rearranged to the end-on bonded OScNN complex upon UV irradiation. Both the OSc(N2) and OScNN complexes in solid argon can be assigned to have 2A' ' electronic ground state with Cs symmetry arising from the 2Delta first excited-state ScO. The neutral complexes can also be photoionized to the OScNN+ cation complex upon UV irradiation.

摘要

一氧化钪-二氮配合物——OSc(N₂)、OScNN和OScNN⁺——是通过在固态氩中激光蒸发的一氧化钪与N₂反应，或钪原子与N₂O反应制备而成。基态一氧化钪分子与N₂反应，在退火时自发形成侧键合的OSc(N₂)配合物。该配合物在紫外线照射下重排为端基键合的OScNN配合物。固态氩中的OSc(N₂)和OScNN配合物均可归属于具有Cs对称性的²A''电子基态，这是由²Δ第一激发态ScO产生的。中性配合物在紫外线照射下也可被光离子化为OScNN⁺阳离子配合物。