P-31 SOLID-STATE NMR-SPECTRA OF CRYSTALLINE PHOSPHORIC-ACID AND THEIR RELATION TO THE STRUCTURE OF UREA PHOSPHATE

被引：8
|
作者：
VILA, AJ
LAGIER, CM
WAGNER, G
OLIVIERI, AC
机构：
[1] FAC CIENCIAS BIOQUIM & FARMACEUT ROSARIO,IQUIOS,SUIPACHA 531,RA-2000 ROSARIO,ARGENTINA
[2] FAC CIENCIAS BIOQUIM FARMACEUT ROSARIO,DEPT QUIM ANALIT,RA-2000 ROSARIO,ARGENTINA
[3] UNIV ILLINOIS,DEPT CHEM,MOLEC SPECT LAB,URBANA,IL 61801
来源：
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS | 1991年 / 10期
关键词：
D O I：
10.1039/c39910000683
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The P-31 chemical shift tensor in crystalline phosphoric acid at 123 K is axially symmetric, with DELTA-sigma = +60 ppm; at room temperature a very small DELTA-sigma is observed, indicating either fast reorientational motion of PO4 tetrahedra or multiple proton transfer.
引用
收藏
页码：683 / 685
页数：3
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