P-31 MAS NMR-STUDY OF THE HYDROLYSIS OF O,S-DIETHYL PHENYLPHOSPHONOTHIOATE ON REACTIVE SORBENTS

被引：15

作者：

WAGNER, GW ^{[1
]}

BARTRAM, PW ^{[1
]}

机构：

[1] USA,EDGEWOOD RDEC,RES & TECHNOL DIRECTORATE,ABERDEEN PROVING GROUND,MD 21010

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1995年 / 99卷 / 03期

关键词：

ALUMINA; HYDROLYSIS; ION EXCHANGE RESIN; LETHAL AGENT DECONTAMINATION; MAGIC ANGLE SPINNING NMR; O; S-DIETHYL PHENYL PHOSPHONOTHIOATE; PHOSPHONOTHIOATE DERIVATIVES; P-31; NMR;

D O I：

10.1016/1381-1169(95)00054-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

P-31 MAS NMR was used to monitor the hydrolysis of O,S-diethyl phenylphosphonothioate (DEPPT) sorbed on gamma-alumina, XE-555 (a mixture of strong-acid/strong-base ion exchange resins and a carbonaceous adsorbent), and a polydivinyl-benzene sorbent impregnated with NaOH. The products were identified to determine the amount of P-O/P-S bond hydrolysis occurring on the sorbents. The relative order of reactivity observed for the sorbents is: polydivinylbenzene/NaOH > gamma-alumina >> XE-555. Distinct P-31 MAS NMR peaks were observed for DEPPT sorbed on the individual components of XE-555. P-31 MAS NMR also suggested the presence of mobile and translationally-restricted phases for DEPPT sorbed on gamma-alumina. These aspects of DEPPT sorption provided by P-31 MAS NMR enabled a better understanding of the DEPPT reactivity observed on XE-555 and gamma-alumina.

引用

页码：175 / 181

页数：7

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