Polynuclear iron(III) pivalates |
| |
| Authors: | M A Kiskin I G Fomina A A Sidorov G G Aleksandrov O Yu Proshenkina Zh V Dobrokhotova V N Ikorskii Yu G Shvedenkov V M Novotortsev I L Eremenko I I Moiseev |
| |
| Institution: | (1) N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninsky prosp., 119991 Moscow, Russian Federation;(2) International Tomography Center, Siberian Branch, Russian Academy of Sciences, 3a ul. Institutskaya, 630090 Novosibirsk, Russian Federation |
| |
| Abstract: | The formation of magnetically active polynuclear FeIII pivalates in the FeSO4·7H2O-KOOCCMe3 system was studied. The reaction of FeSO4·7H2O (1) with KOOCCMe3 in EtOH in air afforded the antiferromagnetic trinuclear complex Fe3O(OOCCMe3)6(H2O)3]+OOCCMe3]–·3EtOH. A change of the solvent (EtOH) in this system to a 40:1 benzene—THF mixture resulted in the formation of the antiferromagnetic hexanuclear cluster Fe6(O)2(OH)2(OOCCMe3)12(HOOCCMe3)(THF)]·1.5C6H6. The addition of trimethylacetic acid to EtOH and recrystallization from hexane gave rise to the antiferromagnetic coordination polymer K2Fe4(O)2(OOCCMe3)10(HOOCCMe3)2(H2O)2]n (7). Recrystallization of the latter from acetonitrile afforded the antiferromagnetic tetranuclear complex K2Fe4(O)2(OOCCMe3)10(HOOCCMe3)2(MeCN)2. The structures of these compounds were established by X-ray diffraction analysis, and their magnetic susceptibilities and thermal decomposition were investigated.__________Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 11, pp. 2403–2413, November, 2004. |
| |
| Keywords: | polynuclear iron complexes carboxylate ligands synthesis X-ray diffraction analysis magnetic properties |
| 本文献已被 SpringerLink 等数据库收录！ |
|
