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Metal cation-dependent helicity of two 1-D heterometal chains constructed from pyridine-2,6-dicarboxylate
Wei, Qin1,2; Ding, Yu-Jia1,2; Huang, Xia1,2; Zhang, Ji-Yuan3; Lu, Wen-Jing1,2; Dong, Ren-Feng1,2; Cai, Yue-Peng1,2; Si, Li-Ping1,2
AbstractTwo interesting 1D heterometal chain-like compounds from pyridine-2,6-dicarboxylic acid (H(2)PDA) and AgNO3 as well as ZnCl2/SmCl3, namely [ZnAg(PDA)(2)(mu(2)-H2O)center dot(H3O)(+)center dot(H2O)(0.25)](n) (1) and [SmAg(PDA)(2)(H2O)(3)center dot 3H(2)O]n (2), have been solvothermally synthesized by fine control synthetic conditions, and structurally characterized. The results reveal that 1D rac-helical chain 1 containing two independent single-stranded single-helical P-helical and M-helical chains crystallized in the tetragonal 14(1)/a space groups, in which the octahedral Zn2+ center in 1 coordinated to two pyridyl nitrogen atoms and four carboxyl oxygen atoms from two chelating PDA(2-) ligands, while the distorted tetrahedral Ag+ center in 1 ligated to two aqueous oxygen atoms and two carboxyl oxygen atoms from two bridging PDA(2-) ligands. Under the same reaction conditions except the reactant of SmCl3 replacing ZnCl2, 1-D meso-helical chain 2 with monoclinic P2(1)/n space group, consisting of two adjacent three-stranded single-helical P and M chains connected through Ag-O bonds, was obtained. Each Sm3+ ion in 2 was chelated to two PDA(2-) anions as tridentate (ONO) ligands and three water molecules that completed the nine-coordinated environment around Sm3+. The coordination sphere of Ag+ was finished by five carboxyl O atoms from three PDA(2-) ligands with highly distorted trigonal bipyramidal geometry. Obviously, different helicity between 1 and 2 closely related to the radius and coordi numbers of the 3d/4f metal cation ions. Moreover, the fluorescent propeties of compounds 1 and 2 were also studied. (C) 2016 Elsevier B.V. All rights reserved.
KeywordMetal Cation-dependent Helicity Rac-/meso-helical Chains Pyridine-2 Fluorescence 6-dicarboxylate
WOS HeadingsScience & Technology ; Physical Sciences
WOS Subject ExtendedChemistry
Indexed BySCI
WOS SubjectChemistry, Inorganic & Nuclear
WOS IDWOS:000387527200013
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Document Type期刊论文
Affiliation1.South China Normal Univ, Guangzhou Key Lab Mat Energy Convers & Storage, Sch Chem & Environm, Guangzhou 510006, Guangdong, Peoples R China
2.Guangdong Prov Engn Technol Res Ctr Mat Energy Co, Guangzhou 510080, Guangdong, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Wei, Qin,Ding, Yu-Jia,Huang, Xia,et al. Metal cation-dependent helicity of two 1-D heterometal chains constructed from pyridine-2,6-dicarboxylate[J]. INORGANIC CHEMISTRY COMMUNICATIONS,2016,73:52-56.
APA Wei, Qin.,Ding, Yu-Jia.,Huang, Xia.,Zhang, Ji-Yuan.,Lu, Wen-Jing.,...&Si, Li-Ping.(2016).Metal cation-dependent helicity of two 1-D heterometal chains constructed from pyridine-2,6-dicarboxylate.INORGANIC CHEMISTRY COMMUNICATIONS,73,52-56.
MLA Wei, Qin,et al."Metal cation-dependent helicity of two 1-D heterometal chains constructed from pyridine-2,6-dicarboxylate".INORGANIC CHEMISTRY COMMUNICATIONS 73(2016):52-56.
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