当前位置: X-MOL 学术Dyes Pigments › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
The 2-isocyanoazulene-gold(I) fragment as a versatile element for organometallic dyes and liquid crystals
Dyes and Pigments ( IF 4.5 ) Pub Date : 2020-01-12 , DOI: 10.1016/j.dyepig.2020.108195
Estela de Domingo , María Barcenilla , Jose Miguel Martín-Alvarez , Jesús A. Miguel , Silverio Coco

This manuscript reports the synthesis and liquid crystal behavior of isocyanoazulene gold(I) complexes [AuX (CN-Az)] (Az = azulene; X = halide, perhalophenyl or alkynyl) and [μ-4,4′-C6F4C6F4{Au(CN-Az)}2]. The comparison of the X-ray structures of homologous compounds, reveals that the introduction of a long substituent in the system produces a loss of molecular planarity that induces a decrease in the melting temperatures. The free 2-isocyanoazulene is not a liquid crystal itself, but its gold complexes bearing a C10 hydrocarbon chain display a SmA mesophase, whose formation is driven by nanosegregation between molten chains and aromatic parts. The free isocyanide is strongly colored and displays fluorescence in solution associated with the azulene fragment, which is largely diminished upon coordination to the gold fragment.



中文翻译:

2-异氰基腈-金(I)片段可作为有机金属染料和液晶的通用元素

该手稿报道了异氰基腈金属金(I)配合物[AuX(CN-Az)](Az =氮杂; X =卤化物,全卤代苯基或炔基)和[μ-4,4'- C6 F 4 C 6 F 4 {Au(CN-Az)} 2 ]。同源化合物的X射线结构比较表明,在系统中引入长取代基会导致分子平面度损失,从而导致熔融温度降低。游离的2-异氰基az并烯本身不是液晶,但其金配合物的碳原子数为10烃链显示SmA中间相,其形成是由熔融链和芳族部分之间的纳米偏析驱动的。游离异氰化物显着着色,并在与solution片段相关的溶液中显示荧光,与金片段配位后,荧光大大减弱。

更新日期:2020-01-13
down
wechat
bug