ESR study of Cu2+ doped zinc maleate tetrahydrate single crystals

✍ Scribed by M. Vithal; R. Jagannathan; C.S. Sunandana

• Publisher: Elsevier Science
• Year: 1985
• Tongue: English
• Weight: 382 KB
• Volume: 41
• Category: Article
• ISSN: 1386-1425
• DOI: 10.1016/0584-8539(85)80034-9

✦ Synopsis

ESR study of 1% Cu *+ doped m zmc maleate tetrahydrate smgle crystal gives rise to g1 = 2 374, g2 = 2 257 and i, = 2 643 These ialues are quite different from the g values for the pure copper comnound Conner maleate tetrahvdrate. w (111 = 2 172 and gI = 2 095, mdlcatmg that m Cu'+/ZnMTH, Cu" occup& a compressed octahedral, idbstltutlonal s;ie with the ground state 0 724132' -r* ) + 0 173 1 x2 -yz ), coordmated to two maleate groups and four water molecules unhke the copper compound where coordmatlon takes place only with water molecules The photoacoustlc spectrum ofcoppcr maleate tetrahydrate gives rise to a charge transfer band at _ 37OOOcm-' and d-d transItIons at _ 15OOOcm-' with a shoulder at 5 12OCOcm-