NDLI: The various architectures and properties of a series of coordination polymers tuned by the central metals

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Le, Mao Luan, Jian Liu, Guo-cheng Lin, Hong-yan Wang, Xiu-li
Description	Author Affiliation: Wang XL ( Department of Chemistry, Bohai University, Jinzhou, 121000, P. R. China. wangxiuli@bhu.edu.cn.)
Abstract	Five new metal–organic coordination polymers based on the mixed ligands of a semi-rigid bis-pyridyl-bis-amide N,N′-bis(3-pyridinecarboxamide)-1,2-cyclohexane (3-bpah) and 1,4-benzenedicarboxylic acid $(1,4-H_{2}BDC),$ namely $[Co(3-bpah)(1,4-BDC)(H_{2}O)_{3}]$ (1), $[Ni(3-bpah)(1,4-BDC)(H_{2}O)_{3}]$ (2), [Cu(3-bpah)(1,4-BDC)] (3), $[Zn(3-bpah)(1,4-BDC)]·H_{2}O$ (4) and $[Cd(3-bpah)(1,4-BDC)(H_{2}O)]$ (5), have been hydrothermally synthesized and structurally characterized. Complexes 1 and 2 are isostructural and display the similar 1D infinite chains, which are further linked via hydrogen-bonding interactions to generate 3D supramolecular frameworks. Complex 3 features a 3D polymeric framework with $CdSO_{4}-like$ topology. Complexes 4 and 5 show two similar 2D (2,4)-connected networks with $(4·8^{5})(4)$ topology, in which the 3-bpah ligands adopt different $μ_{2}-bridging$ coordination modes via the ligation of two pyridyl nitrogen atoms in 4 and via the ligation of one pyridyl nitrogen and one amide oxygen atom in 5. In addition, the central metals show different coordination geometries in 4 and 5. The adjacent layers of complexes 4 and 5 are finally extended into 3D supramolecular architectures through hydrogen-bonding interactions. The effects of the central metals on the structures and properties of complexes 1–5 have been discussed. The electrochemical properties of complexes 1–3 and fluorescent sensing behaviors of 4–5 toward ethanol and nitrobenzene have been investigated in detail.
ISSN	14779226
Issue Number	21
Journal	Dalton Trans.
Volume Number	43
e-ISSN	13645447
Language	English
Publisher	Royal Society of Chemistry
Publisher Date	2014-06-07
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Chemistry
Content Type	Text
Resource Type	Article
Subject	Inorganic Chemistry

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