{"title":"N , N -二甲基- N ′-(2′, 3′-二脱氧-3′-硫代胞苷)甲脒水解机理的理论研究","authors":"张嫦, 薛英","doi":"10.1360/ZB2008-38-5-404","DOIUrl":null,"url":null,"abstract":"采用密度泛函理论B3LYP/6-31+G(d, p)方法研究了 N , N -二甲基- N ′-(2′,3′-二脱氧-3′硫代胞苷)甲脒(甲脒-3TC)分子在气相和水溶液中的水解反应机理. 考虑了两条可能的反应途径: 水分子首先进攻C=N双键的途径(Path A)和先进攻C—N单键的过程(Path B). 计算结果表明气相中两条途径的第一步均是速率控制步骤, Path A比Path B更有利. 采用自洽反应场极化连续模型(CPCM模型)在B3LYP/6-31+G(d, p)水平上研究了反应体系在水溶液中的溶剂化效应. 溶液中第一条途径Path A仍是最优途径.","PeriodicalId":49128,"journal":{"name":"Science in China. Series B, Chemistry","volume":"2 1","pages":"404-410"},"PeriodicalIF":0.0000,"publicationDate":"2008-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"N , N -二甲基- N ′-(2′, 3′-二脱氧-3′-硫代胞苷)甲脒水解机理的理论研究\",\"authors\":\"张嫦, 薛英\",\"doi\":\"10.1360/ZB2008-38-5-404\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"采用密度泛函理论B3LYP/6-31+G(d, p)方法研究了 N , N -二甲基- N ′-(2′,3′-二脱氧-3′硫代胞苷)甲脒(甲脒-3TC)分子在气相和水溶液中的水解反应机理. 考虑了两条可能的反应途径: 水分子首先进攻C=N双键的途径(Path A)和先进攻C—N单键的过程(Path B). 计算结果表明气相中两条途径的第一步均是速率控制步骤, Path A比Path B更有利. 采用自洽反应场极化连续模型(CPCM模型)在B3LYP/6-31+G(d, p)水平上研究了反应体系在水溶液中的溶剂化效应. 溶液中第一条途径Path A仍是最优途径.\",\"PeriodicalId\":49128,\"journal\":{\"name\":\"Science in China. Series B, Chemistry\",\"volume\":\"2 1\",\"pages\":\"404-410\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-05-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Science in China. Series B, Chemistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1360/ZB2008-38-5-404\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science in China. Series B, Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1360/ZB2008-38-5-404","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
摘要
采用密度泛函理论B3LYP/6-31+G(d, p)方法研究了 N , N -二甲基- N ′-(2′,3′-二脱氧-3′硫代胞苷)甲脒(甲脒-3TC)分子在气相和水溶液中的水解反应机理. 考虑了两条可能的反应途径: 水分子首先进攻C=N双键的途径(Path A)和先进攻C—N单键的过程(Path B). 计算结果表明气相中两条途径的第一步均是速率控制步骤, Path A比Path B更有利. 采用自洽反应场极化连续模型(CPCM模型)在B3LYP/6-31+G(d, p)水平上研究了反应体系在水溶液中的溶剂化效应. 溶液中第一条途径Path A仍是最优途径.