4-ALKYLOXY-4'-STILBAZOLES - NEW HETEROCYCLIC MESOGENS
4-ALKYLOXY-4'-STILBAZOLES - NEW HETEROCYCLIC MESOGENS
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DOI：
10.1080/02678298808086385
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发表时间：
1988-03-01
期刊：
影响因子：
2.2
通讯作者：
STYRING, P
中科院分区：
文献类型：
--
作者：
BRUCE, DW;DUNMUR, DA;STYRING, P
本文报道了一系列新的杂环介孔分子--反式-4-烷氧基-4‘-二苯乙烯(CnH_2n+1OC_6H_4CH=CHC5H_4N)的合成，并报道了甲氧基(C_1)和十二烷氧基(C_(12))的所有同系物的相行为。对于<；3，化合物是非介晶性的；当n=3和4时，观察到单色近晶相，而当n=5到12时，同系物显示对映异向近晶相。为了便于比较，还报道了两种反式-4-烷氧基二苯乙烯的合成和性质。根据X射线数据或光学纹理来指定相。
The synthesis of a new series of heterocyclic mesogens, the trans-4-alkyloxy-4'-stilbazoles (CnH2n+1OC6H4CH=CHC5H4N), is described and the phase behaviour is reported for all homologues between methyloxy (C1) and dodecyloxy (C12). Forn< 3, the compounds are non-mesomorphic; monotropic smectic phases are observed forn= 3 and4, whilst homologues withn= 5 to 12 show enantiotropic smectic phases. For comparison the synthesis and properties of two trans-4-alkyloxy-stilbenes are also reported. The phases are assigned on the basis of either X-ray data or optical textures.