Design of nickel donor–acceptor dithiolenes for 2nd order nonlinear optics: an experimental and computational study
作者:Salahuddin S. Attar、Luciano Marchiò、Luca Pilia、Maria F. Casula、Davide Espa、Angela Serpe、Maddalena Pizzotti、Daniele Marinotto、Paola Deplano
DOI:10.1039/c9nj02976a
日期:——
The structures and properties, including second-order non-linear optical properties in solution and in polymethylmethacrylate (PMMA) films, of new nickel heteroleptic donor–acceptor dithiolene complexes are reported here ([Ni(Bn2pipdt)L1–4], 1–4). The acceptor dithione system (Bn2pipdt = 1,4-dibenzylpiperazine-2,3-dithione) is invariant, whereas the donor dithiolate moiety varies in 1 to 4 (i-mnt =
此处报道了新型镍杂配施主-受体二硫代戊二烯络合物的结构和性质,包括溶液和聚甲基丙烯酸甲酯(PMMA)薄膜的二阶非线性光学性质([Ni(Bn 2 pipdt)L1-4 ],第1页–4)。受体二硫酮系统(BN 2 pipdt = 1,4-二苄基-2,3-二硫酮)是不变的,而供体二硫醇部分中变化1到4(ⅰ-MNT = -2,2-二氰基-1,1-二硫醇)(L1),sqdt = 1,2-二硫代方酸(L2),ddmedt = 1,2-二苯甲氧基亚乙基二硫代磺酸盐(L3),dddmedt = 5,6-双(甲氧基羰基)-1,4-二硫代-2,3-双(硫醇盐)(L4)。的分子结构表征1,3和4指出金属中心呈现由二硫酮配体的Bz结合的正方形平面的几何形状2 pipdt,和由三个不同的二硫醇基型配体。配合物1-4在可见光区域的特征是强度中等强度的峰,该峰会经历负溶剂溶变色现象。分子二次光学非线性是在DMF溶液中通