摘要
选用二硫烯类配体Dmit首次合成了新配合物(MePyMe)2[Ni(dmit)2]和(MePyMe)[Ni(dmit)2],测定了二者在乙腈溶剂中的UV-VIS-NIR吸收光谱;并在I3-存在时测定了(MePyMe)2[Ni(dmit)2]在乙腈溶剂中的动态UV-VIS-NIR吸收光谱,对某些光谱峰做了指认。结果表明:阴离子的不同氧化态对吸收光谱影响较大,[Ni(dmit)2]2-无NIR吸收,而[Ni(dmit)2]-有强烈的NIR吸收,因此,后者[Ni(dmit)2]-可作为NIR激光染料。其NIR吸收应源自[Ni(dmit)2]-的小的LUMO与HOMO的π→π*跃迁。
Two new Dmit complexes,（MePyMe）2[Ni（dmit）2] and（MePyMe）[Ni（dmit）2],have been prepared and their UV-VIS-NIR spectrophotometry in CH3CN have also been measured.During the course of oxidation of（MePyMe）2[Ni（dmit）2],by using I3^-,UV-VIS-NIR spectrophotometry have been monitored online.Different valence states of anion have shown great influence on spectrum absorption.[Ni（dmit）2]^2-has no NIR absorption,while [Ni（dmit）2]-exhibits a strong NIR absorption.So,[Ni（dmit）2]^-can be to applied as NIR laser dyes.The NIR absorption is assigned to be π→π^＊ transition between LUMO and HOMO of [Ni（dmit）2]^-.
出处
《山东建筑大学学报》
2012年第1期63-66,共4页
Journal of Shandong Jianzhu University
