Self-assembly and chiral recognition of quartz crystal microbalance chiral sensor.
A novel chiral sensor based on the self-assembled monolayer of (6(A)-omega-mercaptoethylureado-6(A)-deoxy)heptakis(2,3-di-o-phenylcarbamoyl)-6(B), 6(C), 6(D), 6(E), 6(F), 6(G)-hexa-o-phenylcarbamoyl-beta-cyclodextrin (Ph-beta-CD-SH) on a quartz crystal transducer for chiral recognition was set up. (R,S)-(+/-)-(3-methoxyphenyl)ethylamine were recognized by this QCM chiral sensor with a QCM chiral discrimination factor of 1.33. Furthermore, UV spectroscopy was used to investigate the mechanism of host-guest interactions between (6(A)-azido-6(A)-deoxy)heptakis(2,3-di-o-phenylcarbamoyl)-6(B), 6(C), 6(D), 6(E), 6(F), 6(G)-hexa-o-phenylcarbamoyl-beta-cyclodextrin (Ph-beta-CD) and (R,S)-(+/-)-(3-methoxyphenyl) ethylamine. The UV discrimination factor was determined to be 0.066.
Luo
Miao Li
ML
School of Chemistry and Environment, South China Normal University, Guangzhou, People's Republic of China.
Zhang
Wei Guang
WG
Zhang
Sheng
S
Fan
Jun
J
Su
Wen Cui
WC
Yin
Xia
X