Synthesis, crystal structures and photochromic properties of two coordination polymers based on a rigid tetracarboxylic acid ligand

Synthesis, crystal structures and photochromic properties of two coordination polymers based on a... Manganese(II) and nickel(II) coordination polymers, [Mn(L)(H2O)2] n (1) and [Ni(L)·14H2O] n (2), have been synthesized from a rigid viologen-based tetracarboxylic acid ligand, 1,1′-bis(3,5-dicarboxyphenyl)-4,4′-bipyridinium dichloride (H4L·2Cl) and the Mn(II)/Ni(II) chlorides. The compounds have been characterized by infrared spectra, elemental analyses, single-crystal and powder X-ray diffraction analyses and thermogravimetric analyses. Compound 1 has a 2D coordination network with uncoordinated carboxyl groups, which further stack into a 3D supramolecular structure by hydrogen-bonding interactions. Compound 2 shows a 3D supramolecular framework with 1D channels along the crystallographic b-axis, formed from zigzag chains through hydrogen-bonding interactions. Both compounds display prominent photochromic and photomagnetic behavior upon light irradiation, suggesting that they may be potential photomagnetic materials. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Transition Metal Chemistry Springer Journals

Synthesis, crystal structures and photochromic properties of two coordination polymers based on a rigid tetracarboxylic acid ligand

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Publisher
Springer International Publishing
Copyright
Copyright © 2017 by Springer International Publishing AG
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry; Organometallic Chemistry
ISSN
0340-4285
eISSN
1572-901X
D.O.I.
10.1007/s11243-017-0157-5
Publisher site
See Article on Publisher Site

Abstract

Manganese(II) and nickel(II) coordination polymers, [Mn(L)(H2O)2] n (1) and [Ni(L)·14H2O] n (2), have been synthesized from a rigid viologen-based tetracarboxylic acid ligand, 1,1′-bis(3,5-dicarboxyphenyl)-4,4′-bipyridinium dichloride (H4L·2Cl) and the Mn(II)/Ni(II) chlorides. The compounds have been characterized by infrared spectra, elemental analyses, single-crystal and powder X-ray diffraction analyses and thermogravimetric analyses. Compound 1 has a 2D coordination network with uncoordinated carboxyl groups, which further stack into a 3D supramolecular structure by hydrogen-bonding interactions. Compound 2 shows a 3D supramolecular framework with 1D channels along the crystallographic b-axis, formed from zigzag chains through hydrogen-bonding interactions. Both compounds display prominent photochromic and photomagnetic behavior upon light irradiation, suggesting that they may be potential photomagnetic materials.

Journal

Transition Metal ChemistrySpringer Journals

Published: Jul 13, 2017

References

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