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Title of Journal: Sci China Chem

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Abbravation: Science China Chemistry

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SP Science China Press

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DOI

10.1002/jhbs.21547

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1869-1870

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Static field induced magnetic relaxations in dinuc

Authors: Bin Liu BingWu Wang ZheMing Wang Song Gao
Publish Date: 2012/05/09
Volume: 55, Issue: 6, Pages: 926-933
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Abstract

Two dinuclear lanthanide Ln complexes formulated as phen2Ln2HCOO4HCOO2−2x NO32x 1 Ln = Gd and x = 052 2 Ln = Er and x = 090 phen = 110phenanthroline were synthesized and characterized They are isostructural The dinuclear molecule consists of two Ln3+ bridged by four formate groups and chelated by phen and formate/nitrate ligands and the Ln3+ possesses a coordination environment of distorted tricapped trigonal prism of LnO7N2 Both compounds behave as paramagnets between 2 and 300 K but display two static field induced magnetic relaxation processes One is slow and of spinlattice type and it results from the lifting of Kramer’s degeneracy of the groundstates of both Gd3+ and Er3+ and the other is fast and it might be spinspin type

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