CAN TMS AND DSS BE USED AS NMR REFERENCES FOR CYCLODEXTRIN SPECIES IN AQUEOUS-SOLUTION

被引：22

作者：

LI, ZZ ^{[1
]}

GUO, QX ^{[1
]}

REN, T ^{[1
]}

ZHU, XQ ^{[1
]}

LIU, YC ^{[1
]}

机构：

[1] LANZHOU UNIV,NATL LAB APPL ORGAN CHEM,LANZHOU 730000,PEOPLES R CHINA

来源：

JOURNAL OF INCLUSION PHENOMENA AND MOLECULAR RECOGNITION IN CHEMISTRY | 1993年 / 15卷 / 01期

关键词：

CYCLODEXTRIN; DSS; INCLUSION COMPLEX; NMR; TMS;

D O I：

10.1007/BF00706472

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Tetramethylsilane (TMS) can be included by beta-cyclodextrin (beta-CD), and sodium 2,2-dimethylsilapentane-5-sulphonate (DSS) can form inclusion complexes with beta- and gamma-CD. The NMR chemical shifts are changed considerably as a result of the strong interaction between CD and the guest compound in the inclusion complexes. A downfield shift of as much as 0.63 ppm shift downfield has been observed for the protons of external TMS in CD aqueous solution. In view of this, the question arises of whether TMS and DSS can be used as internal references. DSS in D2O is suggested as an external reference for aqueous cyclodextrin solution in NMR measurements.

引用

页码：37 / 42

页数：6

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