Closed-shell ion pair aggregation in non-polar solvents characterized by NMR diffusion measurements

被引：37

作者：

Pochapsky, SS

Mo, HP

Pochapsky, TC

机构：

[1] BRUKER INSTRUMENTS INC,BILLERICA,MA 01821

[2] BRANDEIS UNIV,DEPT CHEM,WALTHAM,MA 02254

来源：

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS | 1995年 / 24期

关键词：

D O I：

10.1039/c39950002513

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Closed-shell ion pairs, formed by tetrabutylammonium chloride, aggregate in (CHCl3)-H-2 solution; stimulated-echo NMR experiments incorporating pulsed field gradients yielded diffusion coefficients for the aggregates and comparison of aggregate diffusion with that of an internal standard of similar size and shape (Bu(4)Si) was used to determine the extent of aggregation; temperature and concentration effects indicate that aggregation is primarily entropy-driven.

引用

页码：2513 / 2514

页数：2

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