{"title":"YBa 2 Cu 3 O 7 原子簇自洽晶体场的量子化学全电子从头计算","authors":"陈念贻 刘洪霖, Chen Nian-Yi Liu Hong-Lin","doi":"10.1360/ZB1995-25-2-132","DOIUrl":null,"url":null,"abstract":"应用全电子HF从头计算自洽场和自洽晶体场方法计算了原子簇YBa 2 Cu 3 O 7 提出了HF表面势使非对称的原子簇具有较对称的势场,得到较为对称的电子结构、电荷分布、前线轨道和键级等信息,讨论了YBa 2 Cu 3 O 7 的化学键性质.认为单胞内存在着以共价键相连的[CuO 2 —O—CuO—O—CuO 2 ) 6.8- 的络合离子,而单胞间在c方向由离子键相连接;强调了顶角氧对CuO 2 面空穴状态的重要影响.","PeriodicalId":21648,"journal":{"name":"Science in China. Series B, Chemistry, life sciences & earth sciences","volume":"85 1","pages":"132-136"},"PeriodicalIF":0.0000,"publicationDate":"1995-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science in China. Series B, Chemistry, life sciences & earth sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1360/ZB1995-25-2-132","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
应用全电子HF从头计算自洽场和自洽晶体场方法计算了原子簇YBa 2 Cu 3 O 7 提出了HF表面势使非对称的原子簇具有较对称的势场,得到较为对称的电子结构、电荷分布、前线轨道和键级等信息,讨论了YBa 2 Cu 3 O 7 的化学键性质.认为单胞内存在着以共价键相连的[CuO 2 —O—CuO—O—CuO 2 ) 6.8- 的络合离子,而单胞间在c方向由离子键相连接;强调了顶角氧对CuO 2 面空穴状态的重要影响.