Bis[1-hydroxyalkylbenzo]-21-crown-7 (A-C) have been synthesized by ) two-step reactions from dibenzo-21-crown-7 (DB21C7). Extraction of cesium cation from nitric acid solutions by A-C has been investigated in nitromet...Bis[1-hydroxyalkylbenzo]-21-crown-7 (A-C) have been synthesized by ) two-step reactions from dibenzo-21-crown-7 (DB21C7). Extraction of cesium cation from nitric acid solutions by A-C has been investigated in nitromethane. Under the conditions of various concentration of HNO3 or NaNO3, the extractabilities of A and B were superior to that of DB21C7.展开更多
Cesium as a kind of alkali metals has widely been used in catalysis,medicine,biology,magnetic fluid power and other high-tech fields(Liao and Yang,2012;Cao et al.,2011;Wang et al.,2011).Although there was abundant of
Benzo-21-crown-7(B21 C7)is one of the most important crown ethers,which not only shows excellent physicochemical properties but also exhibits promising binding capability with dialkylammonium salts.In this paper,we de...Benzo-21-crown-7(B21 C7)is one of the most important crown ethers,which not only shows excellent physicochemical properties but also exhibits promising binding capability with dialkylammonium salts.In this paper,we designed and synthesized a fixed-tetraphenylethylene(FTPE)motif bridged ditopic benzo-21-crown-7 molecule(H).The fixed tetraphenylethylene motif endows H with aggregation induced emission(AIE)prope rty.In the presence of a ditopic dialkylammonium salt guest molecule(G),a fluorescent supramolecular polymer with golden luminescent property could be fabricated.This B21 C7-based host-guest supramolecular polymer with golden fluorescence may have potential application in dynamic luminescent materials.展开更多
文摘Bis[1-hydroxyalkylbenzo]-21-crown-7 (A-C) have been synthesized by ) two-step reactions from dibenzo-21-crown-7 (DB21C7). Extraction of cesium cation from nitric acid solutions by A-C has been investigated in nitromethane. Under the conditions of various concentration of HNO3 or NaNO3, the extractabilities of A and B were superior to that of DB21C7.
基金Financial support from the State Surface Project of National Natural Science of China (21276194)the Key Pillar Program of Tianjin Municipal Science and Technology (11ZCKGX02800)the Specialized Research Fund for the Doctoral Program of Chinese Higher Education (20101208110003)
文摘Cesium as a kind of alkali metals has widely been used in catalysis,medicine,biology,magnetic fluid power and other high-tech fields(Liao and Yang,2012;Cao et al.,2011;Wang et al.,2011).Although there was abundant of
基金the financial support from the National Natural Science Foundation of China(No.21702020)。
文摘Benzo-21-crown-7(B21 C7)is one of the most important crown ethers,which not only shows excellent physicochemical properties but also exhibits promising binding capability with dialkylammonium salts.In this paper,we designed and synthesized a fixed-tetraphenylethylene(FTPE)motif bridged ditopic benzo-21-crown-7 molecule(H).The fixed tetraphenylethylene motif endows H with aggregation induced emission(AIE)prope rty.In the presence of a ditopic dialkylammonium salt guest molecule(G),a fluorescent supramolecular polymer with golden luminescent property could be fabricated.This B21 C7-based host-guest supramolecular polymer with golden fluorescence may have potential application in dynamic luminescent materials.
