Document Detail


Syntheses, structures and magnetic properties of a family of heterometallic [Mn(II)(2)Mn(III)(2)Ln(III)(2)] clusters.
MedLine Citation:
PMID:  23208662     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
A new family of isostructural Mn-Ln heterometallic clusters, [Mn(II)(2)Mn(III)(2)Ln(III)(2)(Piv)(8)(thme)(2)(H(2)tea)(2)] (H(3)thme = 1,1,1-tris(hydroxymethyl)ethane, Hpiv = pivalic acid, H(3)tea = triethanolamine, and Ln = Pr, Nd, Sm, Eu, Gd, Tb, and Dy) have been prepared by reaction of the hexanuclear manganese precursor, [Mn(6)O(2)(Piv)(10)(4-Me-Py)(2.5)(Hpiv)(1.5)], with H(3)thme, H(3)tea, and Ln(NO(3))(3)·6H(2)O under the solvothermal conditions. Complexes were characterized by single-crystal X-ray diffraction and their core [Mn(2)(III)Mn(2)(II)Ln(2)(III)(μ(3)-OR)(4)(μ(2)-OR)(6)](6+) composed of four face-sharing defected cubane units. Antiferromagnetic (AF) exchange interactions were suggested for all of the complexes by solid-state dc magnetic susceptibility measurements. Complexes and , show frequency-dependent ac susceptibility signals suggestive of slow magnetic relaxation.
Authors:
Jinying Liu; Chengbing Ma; Hui Chen; Mingqiang Hu; Huimin Wen; Honghua Cui; Xiaowei Song; Changneng Chen
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-4
Journal Detail:
Title:  Dalton transactions (Cambridge, England : 2003)     Volume:  -     ISSN:  1477-9234     ISO Abbreviation:  Dalton Trans     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101176026     Medline TA:  Dalton Trans     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. ccn@fjirsm.ac.cn.
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