Systematic design of indium-based luminophores with color-tunable emission via combined manipulation of HOMO and LUMO levels
作者:Kyunglim Hyun、Hyomin Jin、Won Hee Woo、Heuiseok Shin、Ji Hye Lee、Hyonseok Hwang、Min Kim、Kang Mun Lee、Myung Hwan Park、Youngjo Kim
DOI:10.1016/j.dyepig.2018.05.055
日期:2018.11
central indium atoms. The UV/Vis absorption and emission spectra of all indium complexes exhibited significant intramolecular charge transfer (ICT) transitions assigned to the aryl salen-centered π-π* transitions, which displayed a gradual bathochromic shift, resulting from the electronic alteration of the substituent at the C5 position of phenoxy ring. Furthermore, the emission bands also gradually red-shifted
一系列具有由芳基桥接的Salen配体的铟络合物,例如[Ar- N CH(C 6 H 2 -3- t Bu-5-R)} 2 ] In-Me(Ar = 4,5-二甲基-制备1,2-亚苯基,1,2-亚苯基和3,4-亚萘基; R = H,Br,t Bu,Me,OMe,NMe 2和NMe 3 +),并通过NMR光谱和元素完全鉴定分析。所有铟络合物在空气和水溶液中都高度稳定。在这些配合物中,具有结构特征的配合物[(4,5-二甲基亚苯基)双(3-叔丁基-5-甲基水杨基亚胺基)-κN ,N',O,O']甲基铟(III)和[(2,3-萘甲基)双(3-叔丁基-5-甲基水杨基亚胺基)-κN ,N',O,O']甲基铟(III)在中心铟原子周围具有略微扭曲的方锥几何形状。所有铟配合物的UV / Vis吸收和发射光谱均显示出显着的分子内电荷转移(ICT)跃迁,这些跃迁分配给以芳基Salen为中心的π-π*跃迁,该跃