中国科技论文在线

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2009年12月30日

【期刊论文】Cucurbit[n]uril Derivatives Soluble in Water and Organic Solvents

赵建章， Jianzhang Zhao， Hee-Joon Kim， Jinho Oh， Soo-Young Kim， Jae Wook Lee， Shigeru Sakamoto， Kentaro Yamaguchi， and Kimoon Kim

WILEY-VCH Verlag GmbH, D-69451 Weinheim, 2001 1433-7851/01/4022-4235，-0001，（）：

-1年11月30日

摘要

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2009年12月30日

【期刊论文】Direct photomodulation of peptide backbone conformations†

赵建章， Jianzhang Zhao‡， * Dirk Wildemann， Mario Jakob， Carolyn Vargas and Cordelia Schiene-Fischer*

CHEM COMMUN (2003) 2810-2811 ，-0001，（）：

-1年11月30日

摘要

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2009年12月30日

【期刊论文】Chemoselective and enantioselective fluorescent recognition of sugar alcohols by a bisboronic acid receptor

赵建章， Jianzhang Zhao and Tony D. James*

J. Mater. Chem15, (2005), 2896-2901，-0001，（）：

-1年11月30日

摘要

Bisboronic acid 3 binds strongly and enantioselectively with six-carbon sugar alcohols but does not bind strongly with five-or four-carbon sugar alcohols or monosaccharides.

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2009年12月30日

【期刊论文】Simple Bisthiocarbonohydrazones as Sensitive, Selective, Colorimetric, and Switch-on Fluorescent Chemosensors for Fluoride Anions

赵建章， Feng Han， [a] Yuhui Bao， [a] Zhigang Yang， [a] Thomas M. Fyles， [b] Jianzhang Zhao， *[a] Xiaojun Peng， *[a] Jiangli Fan， [a] Yunkou Wu， [a] and Shiguo Sun[a]

，-0001，（）：

-1年11月30日

摘要

Bisthiocarbonohydrazones are found to be a class of sensitive, selective, ratiometric, and colorimetric chemosensors for anions such as fluoride (F-) or acetate (Ac-). The sensitivities, or the binding constants of the sensors with anions, were found to be strongly dependent on the substituents appended on the π-conjugation framework, the delocalization bridge CH=N, the aromatic moiety, and the hetero atom in the C=X group (X=O, S) of the sensors. Single-crystal structures and 1H NMR titration analysis shows that the CH=N moiety is a hydrogen- bond donor, and it is proposed that an additional CH…F hydrogen bond is formed for the sensors in the presence F-1. A sensor bearing anthracenyl groups is demonstrated as a switch-on fluorescent chemosensor for F-1 and Ac-1. The recognition of F-1 in acetonitrile (MeCN) by a sensor with nitrophenyl substituents is tolerant to MeOH (MeCN/MeOH=10:1, v/v) and water (MeCN/H2O=30:1, v/v); at these solvent ratios the absorption intensity of the sensor-F-1 complex solution at maximal absorption wavelength was attenuated to half of the original value in pure MeCN.

anions

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2009年12月30日

【期刊论文】6,60'-Bis-substituted BINOL boronic acids as enantioselective and chemoselective fluorescent chemosensors for D-sorbitol

赵建章， Xiaofen Lianga， Tony D. Jamesb， Jianzhang Zhaoa， *

Tetrahedron 64 (2008) 1309-1315，-0001，（）：

-1年11月30日

摘要

A new chiral fluorescent BINOL boronic acid 1 has been synthesized. The chiral recognition properties of 1 are drastically different from BINOL boronic acid c. Sensor 1 shows improved enantioselectivity as well as chemoselectivity toward sugar alcohols, such as D-sorbitol and D-mannitol.The enantioselectivity of sensor 1 toward D-sorbitol (KR/KS) is 1:35 (pH 9.0), and the chemoselectivity for D-sorbitol/D-mannitol is 20:1

BINOL boronic acid， Chiral recognition， Enantioselective sensors， Sugar alcohols

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