Ladder coordination polymers built from [{Re4Q4(CN)12]4- cluster anions (Q = S, Se, Te) and [Gd(phen)(H2O)3Gd(phen)(H2O)2(μ-OH)2]4+ dimeric cationic fragments
- 주제(키워드) Coordination polymer , Crystal structure , Gadolinium , Magnetic properties , Rhenium cluster
- 등재 SCIE, SCOPUS
- 발행기관 Elsevier Ltd
- 발행년도 2016
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000136200
- 본문언어 영어
- Published As http://dx.doi.org/10.1016/j.poly.2016.05.013
- 저작권 이화여자대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
Three new polymeric compounds with general formula {[Gd(phen)(H2O)3Gd(phen)(H2O)2(μ-OH)2][Re4Q4(CN)12]}·nH2O (Q = S0.84Te0.16, n = 0.25 for compound 1; Q = Se, Te, n = 1 for compounds 2, 3, respectively) were obtained by self-assembly reaction of [Re4Q4(CN)12]4- cluster anions, Gd3+ cation and 1,10-phenthroline (phen) in a solvothermal conditions. Compounds were investigated by single-crystal X-ray diffraction, magnetic measurements and thermogravimetric analysis. Structure of compounds consist of non-charged ladder chains formed by alternating [Re4Q4(CN)12]4- cluster anions and dimeric cationic complex [{Gd(phen)(H2O)3Gd(phen)(H2O)2(μ-OH)2}]4+ connected through -CN-Gd-NC- covalent bonds. Chains are packed parallel and linked with each other by a system of hydrogen bonds. The magnetic susceptibility of compounds is determined by spins of Gd3+ ions that weakly antiferromagnetic coupled in dimeric cationic fragments. © 2016 Elsevier Ltd. All rights reserved.
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