Solvent-controlled three families of Zn(II) coordination compounds: synthesis, crystal structure, solvent-induced structural transformation, supramolecular isomerism and photoluminescence

Dalton Transactions : an International Journal of Inorganic Chemistry
Lu-Lu HanDi Sun

Abstract

This work reports the assembly, topological structure, supramolecular isomerism and luminescence of three solvent-controlled families of coordination compounds, [Zn(bpz)2(H2O)3·2Hpta] (1), [Zn(bpz)(pta)]n (2), [Zn(bpz)(tpa)(H2O)]n (3), [Zn(bpz)(tpa)·4H2O]n (4), and [Zn(bpz)(npa)·H2O]n (5 and 6) (bpz = 3,3',5,5'-tetramethyl-4,4'-bipyrazole, H2pta = phthalic acid, H2tpa = terephthalic acid, H2npa = 4-nitrophthalic acid). The six transition metal compounds reported in this study were definitely characterized by X-ray crystallography to reveal how networks with different topologies are constructed around the same four-connected metal centers. Compound 1 is a 0D discrete molecule, in which Zn(II) is in a trigonal bipyramidal coordination geometry, whereas the guest Hpta(-) as counteranion is hydrogen-bonded with the [Zn(bpz)2(H2O)3]. In compound 2, the Zn(II) center is linked by two bpz and two pta; thus, a 4-connected dia network with the point symbol {6(6)} is formed. In 3, the Zn(II) center is six-coordinated, but in fact it is also a 4-connected node in the whole network due to the terminal aqua ligand and bidentate chelating carboxylate group thus, the resultant network has a 4-connected cds topology with the point symbol {6(5)...Continue Reading

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Citations

Jan 9, 2016·Acta Crystallographica. Section C, Structural Chemistry·Xiaocui ChenYuan Li
Jan 10, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Yu-Wei DongYu-Lin Yang
Mar 11, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Wei ChenYulin Yang
Jan 18, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Pradhumna Mahat ChhetriJhy-Der Chen
Nov 27, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·M AlbinoM Leblanc
Dec 11, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Faruk AhmedMohammad Hedayetullah Mir
Dec 19, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Steffen B MogensenJi-Woong Lee
Jan 28, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Vijay GuptaSanjay K Mandal

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