作者:Paul H. J. Kouwer、Chris J. Welch、Graeme McRobbie、Ben J. Dodds、Lee Priest、Georg H. Mehl
DOI:10.1039/b314342b
日期:——
A novel mesogen has been synthesised, that not only combines two one disc-shaped and rod-shaped mesogens, but also includes a chiral group in the centre of the molecule. A protection and selective deprotection procedure allows the introduction of the chiral group in the central linking group of the mesogen. However, using this versatile procedure, a variety of other groups can be introduced selectively into the mesogen. The chiral group induces the formation of a cholesteric phase. Interestingly, the N* mesophase is miscible with the nematic phases of the precursor discs and rods. This study provides further evidence for the miscibility of discs and rods in a (chiral) nematic phase.
合成了一种新型介质,它不仅结合了两种碟形和棒形介质,还在分子的中心包含一个手性基团。通过保护和选择性去保护程序,可以将手性基团引入介质的中央连接基团中。然而,使用这种多功能程序,可以选择性地将多种其他基团引入介质中。手性基团诱导了胆甾相的形成。有趣的是,N*介相与前驱体碟形和棒形的向列相具有可混溶性。这项研究进一步证实了碟形和棒形在(手性)向列相中的可混溶性。