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Article: Chelating Schiff base assisted azide-bridged Mn(ii), Ni(ii) and Cu(ii) magnetic coordination polymers

TitleChelating Schiff base assisted azide-bridged Mn(ii), Ni(ii) and Cu(ii) magnetic coordination polymers
Authors
Issue Date2012
Citation
Dalton Transactions, 2012, v. 41, n. 43, p. 13379-13387 How to Cite?
AbstractFour new Mn(ii), Ni(ii) and Cu(ii) coordination polymers [Mn 2(L1)(μ1,1-N3) 2(μ1,3-N3)2]n (1), [Ni(L2)2(μ1,3-N3)] n(ClO4)n (2), [Cu(L3)(μ 1,1-N3)(N3)]n (3) and [Cu(L 4)(μ1,1-N3)2]n (4) (L1 = N,N′-bis(2-pyridylmethylene)ethane-1,2-diamine, L 2 = N-(2-pyridylmethylene)methylamine, L3 = N-(2-pyridylmethylene)-3-pyridylamine, L4 = N-(2-pyridylmethylene)- tbutylamine) have been synthesized and characterized by single-crystal X-ray analysis and magnetic measurements. Complex 1 indicates a stoichiometry-dependent structural change (based on Mn:L1:N 3 = 2:1:4 molar ratio) and consists of two-dimensional (2-D) (4,4) net layers, in which Mn(ii) centers are co-bridged by single end-to-end (EE), double end-on (EO) azide and chelate-bridging L1 ligands. Complex 2 shows a single EE azide-bridged one-dimensional (1-D) Ni(ii) chain. Complexes 3 and 4 indicate single EO and double EO azide-bridged 1-D Cu(ii) chains, respectively. Complex 1 exhibits weak ferromagnetism due to its intra-layer spin-canting with Tc = 20 K. Complex 2 shows an unusual intra-chain ferromagnetic coupling and spin-canting behaviour. Both complexes 3 and 4 exhibit intra-chain antiferromagnetic interactions. Magneto-structural parameters for these related complexes were also discussed. This journal is © 2012 The Royal Society of Chemistry.
Persistent Identifierhttp://hdl.handle.net/10722/219677
ISSN
2015 Impact Factor: 4.177
2015 SCImago Journal Rankings: 1.404

 

DC FieldValueLanguage
dc.contributor.authorBai, Shi Qiang-
dc.contributor.authorFang, Chen Jie-
dc.contributor.authorHe, Zheng-
dc.contributor.authorGao, En Qing-
dc.contributor.authorYan, Chun Hua-
dc.contributor.authorHor, T. S Andy-
dc.date.accessioned2015-09-23T02:57:42Z-
dc.date.available2015-09-23T02:57:42Z-
dc.date.issued2012-
dc.identifier.citationDalton Transactions, 2012, v. 41, n. 43, p. 13379-13387-
dc.identifier.issn1477-9226-
dc.identifier.urihttp://hdl.handle.net/10722/219677-
dc.description.abstractFour new Mn(ii), Ni(ii) and Cu(ii) coordination polymers [Mn 2(L1)(μ1,1-N3) 2(μ1,3-N3)2]n (1), [Ni(L2)2(μ1,3-N3)] n(ClO4)n (2), [Cu(L3)(μ 1,1-N3)(N3)]n (3) and [Cu(L 4)(μ1,1-N3)2]n (4) (L1 = N,N′-bis(2-pyridylmethylene)ethane-1,2-diamine, L 2 = N-(2-pyridylmethylene)methylamine, L3 = N-(2-pyridylmethylene)-3-pyridylamine, L4 = N-(2-pyridylmethylene)- tbutylamine) have been synthesized and characterized by single-crystal X-ray analysis and magnetic measurements. Complex 1 indicates a stoichiometry-dependent structural change (based on Mn:L1:N 3 = 2:1:4 molar ratio) and consists of two-dimensional (2-D) (4,4) net layers, in which Mn(ii) centers are co-bridged by single end-to-end (EE), double end-on (EO) azide and chelate-bridging L1 ligands. Complex 2 shows a single EE azide-bridged one-dimensional (1-D) Ni(ii) chain. Complexes 3 and 4 indicate single EO and double EO azide-bridged 1-D Cu(ii) chains, respectively. Complex 1 exhibits weak ferromagnetism due to its intra-layer spin-canting with Tc = 20 K. Complex 2 shows an unusual intra-chain ferromagnetic coupling and spin-canting behaviour. Both complexes 3 and 4 exhibit intra-chain antiferromagnetic interactions. Magneto-structural parameters for these related complexes were also discussed. This journal is © 2012 The Royal Society of Chemistry.-
dc.languageeng-
dc.relation.ispartofDalton Transactions-
dc.titleChelating Schiff base assisted azide-bridged Mn(ii), Ni(ii) and Cu(ii) magnetic coordination polymers-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1039/c2dt31186k-
dc.identifier.pmid23007857-
dc.identifier.scopuseid_2-s2.0-84867568123-
dc.identifier.volume41-
dc.identifier.issue43-
dc.identifier.spage13379-
dc.identifier.epage13387-
dc.identifier.eissn1477-9234-

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