Crystal Structure, Hydrogen-Bonding Properties, and DFT Studies of 2-((2-(2-Hydroxyphenyl)benzo[<i>d</i>]thiazol-6-yl)methylene)malononitrile
作者:Kew-yu Chen
DOI:10.1080/15421406.2015.1011460
日期:2015.12.12
The title compound, 2-((2-(2-hydroxyphenyl)benzo[d]thiazol-6-yl)methylene)malono-nitrile (1), was synthesized and characterized by single-crystal X-ray diffraction. The crystal belongs to monoclinic, space group P21/c, with a = 7.4351(8), b = 7.6568(10), c = 24.542(2) Å, α = 90°, β = 96.680(9)°, ανδ γ = 90°. Compound 1 possesses a strong intramolecular six-membered-ring hydrogen bond, from which excited-state
合成了标题化合物 2-((2-(2-羟基苯基)苯并[d]噻唑-6-基)亚甲基)丙二腈(1)并通过单晶X射线衍射表征。该晶体属于单斜晶系,空间群 P21/c,a = 7.4351(8), b = 7.6568(10), c = 24.542(2) Å, α = 90°, β = 96.680(9)°, ανδ γ = 90°。化合物 1 具有很强的分子内六元环氢键,从中发生激发态分子内质子转移,在乙酸乙酯中产生 658 nm 的质子转移互变异构体发射。在晶体结构中,分子间C–H…N氢键导致沿[010]方向形成柱,柱通过分子间π…π相互作用相互连接,从而将分子连接成连续的三维框架。此外,几何结构,