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Li JJ, Wei LL, Han Z, Xu L, Li LK. Syntheses, Crystal Structures, Thermal and Photoluminescent Properties of Four Coordination Complexes with a Heterocyclic Thioether Carboxylate Ligand. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201500549] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Castellano RK, Li Y, Homan EA, Lampkins AJ, Marín IV, Abboud KA. Seven-Membered Intramolecular Hydrogen Bonding of Phenols: Database Analysis and Phloroglucinol Model Compounds. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200438] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Two new coordination polymers of Robson-type macrocycle bridged by perchlorate anions: Structure, electrochemistry and magnetism. Polyhedron 2010. [DOI: 10.1016/j.poly.2010.01.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Chu ZL. Poly[[[diisothiocyanatocobalt(II)]-bis[μ-4- tert-butyl-2,6-bis(1,2,4-triazol-1-ylmethyl)phenol]] dimethylformamide disolvate dihydrate]. Acta Crystallogr Sect E Struct Rep Online 2009; 65:m288. [PMID: 21582072 PMCID: PMC2968591 DOI: 10.1107/s1600536809005121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2009] [Accepted: 02/12/2009] [Indexed: 11/10/2022]
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Prananto YP, Turner DR, Lu J, Batten SR. Solvent-Induced Structural Changes in Complexes of 1,2-Bis(3-(3-pyridyl)pyrazolyl)ethane. Aust J Chem 2009. [DOI: 10.1071/ch08483] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A series of complexes have been obtained using the flexible ditopic ligand 1,2-bis(3-(3-pyridyl)pyrazolyl)ethane (LEt) with M(SCN)2 (M = Co, Fe) and ZnCl2. The ligand is observed to exist in a variety of conformations with rotations around the ethane spacer and around the pyridyl/pyrazole bond. The bridging length of the ligand (i.e., distance between pyridyl nitrogen atoms) varies by 3.5 Å depending on its geometry. Three different cobalt(ii) complexes of the general form [Co(LEt)2(SCN)2]·Solv (where Solv is a variable number/type of non-coordinated solvent) have been structurally characterized and form a series of solvent dependant supramolecular isomers. When Solv = 2MeCN a (4,4)-sheet is formed (1), however, when Solv = H2O an alternate ‘collapsed’ (4,4)-sheet is observed (2). Changing the solvent to two molecules of N,N-dimethylformamide (DMF) leads to a radical change in structure with a one-dimensional (1D) polymer formed (3) that contains two bridging ligands between adjacent metal atoms (i.e., maintaining the same metal/ligand ratio as in the (4,4)-sheet structures). A monomeric thiocyanate complex [Fe(LEt)2(SCN)2(H2O)2] (4) is reported in which the bispyridyl ligands are terminal and partake in an extended hydrogen-bonded network. A 1D polymer [Zn(LEt)Cl2] (5) is also presented. The structures of the metal complexes are contrasted with that of the free ligand.
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