Analysis of Ground-state Zero-field Splitting for Mn^(2+) Ions in[Co(H_(2)O)]XY_(6) (X=Si,Sn,Pt;Y=F,Cl)  

作　　者：LI Jufen SU Juan YI Xuebin TANG Bin WU Xinhui ZHONG Shuirong 李菊芬;SU Juan;YI Xuebin;TANG Bin;WU Xinhui;ZHONG Shuirong(School of Science,Southwest Petroleum University,Chengdu 610065,China;Southwest Institute of Technical Physics,Chengdu 610065,China)

机构地区：[1]School of Science,Southwest Petroleum University,Chengdu 610065,China [2]Southwest Institute of Technical Physics,Chengdu 610065,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2021年第4期595-599,共5页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the National Natural Science Foundation of China (Nos. 11804285 and 61601384)。

摘　　要：The electron paramagnetic spectra of trigonal Mn^(2+) centers in[Co(H_(2)O)_(6)]SiF6,[Co(H_(2)O)_(6)]SnF6,and[Co(H_(2)O)_(6)]PtCl6 crystals were studied on the basis of the complete energy matrices for a d5 configuration ion in a trigonal ligand field.When Mn^(2+) is doped in the[Co(H_(2)O)_(6)]SiF6,[Co(H_(2)O)_(6)]SnF6,and[Co(H_(2)O)_(6)]PtCl6 crystals crystals,there is a similar local distortion.The experimental results show that the local lattice structure around a trigonal Mn^(2+) center has an elongation distortion along the crystalline C3 axis.From the EPR calculation,the local lattice structure parameters R=2.278A,θ=52.6406? for[Co(H_(2)O)_(6)]SiF6,R=2.280,θ=52.4936° for[Co(H_(2)O)_(6)]SnF6 and R=2.244A,θ=53.0616? for[Co(H_(2)O)_(6)]PtCl6 were determined.

关 键 词：[Co(H_(2)O)_(6)]SiF6 [Co(H_(2)O)_(6)]SnF_(6)and[Co(H_(2)O)_(6)]PtCl_(6) local lattice structure distortion EPR spectrum ligand-fields theory 

分 类 号：O641.4[理学—物理化学]