NMR Study of a Bimesogenic Liquid Crystal with Two Nematic Phases
NMR Study of a Bimesogenic Liquid Crystal with Two Nematic Phases
复制标题
具有两个向列相的双液晶液晶的核磁共振研究
DOI:
10.1080/15421406.2015.1025211
复制
发表时间:
2015
影响因子:
0.7
通讯作者:
Burnell E
中科院分区:
文献类型:
--
作者:
Burnell E
Recent interest in bimesogenic liquid crystals showing two nematic phases has led us to investigate the nematic mean-field interactions in these nematic phases by using rigid solutes as probes. The nematic potential that is modelled by two independent Maier-Saupe terms is successful in fitting the observed dipolar couplings (order parameters) ofpara-,meta- andortho-dichlorobenzene solutes in both the nematic phases of 39 wt% of 4-n-pentyl-4′-cyanobiphenyl (5CB) in α,ω-bis(4-4′-cyanobiphenyl)nonane (CB_C9_CB) to better than the 5% level. The derived liquid-crystal potential parametersG1andG2for each solute in the N and Ntbphases will be discussed. The most interesting observation is thatG1(associated with size and shape interactions) is almost constant in the Ntbphase, whereasG2(associated with longer-range electrostatic interactions) has large variation, even changing sign.
登录
查看更多内容
影响因子:
1.7
作者:
R. Y. Dong
通讯作者:
R. Y. Dong
DOI:
--
发表时间:
1975
期刊:
影响因子:
--
作者:
J. Emsley;J. Lindon
通讯作者:
J. Lindon
影响因子:
2.8
作者:
R. Y. Dong;A. Kohlmeier;M. Tamba;G. Mehl;E. Burnell
通讯作者:
E. Burnell
DOI:
--
发表时间:
1967
期刊:
影响因子:
--
作者:
A. Buckingham;K. Mclauchlan
通讯作者:
K. Mclauchlan
影响因子:
4.4
作者:
E. Elliott Burnell;L. T. ter Beek;Zhengmin Sun
通讯作者:
Zhengmin Sun