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Syntheses, Structures, and Properties of Two Coordination Complexes of a Flexible Ligand with Channel Structure
Author(s) -
Shi Tian,
Chen YaGuang
Publication year - 2017
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201700053
Subject(s) - crystallography , ligand (biochemistry) , antiferromagnetism , benzoic acid , chemistry , ion , rhombus , infrared spectroscopy , photoluminescence , coordination complex , metal ions in aqueous solution , hydrothermal synthesis , crystal structure , spectroscopy , single crystal , metal , hydrothermal circulation , materials science , geometry , physics , biochemistry , receptor , mathematics , organic chemistry , optoelectronics , quantum mechanics , seismology , geology , condensed matter physics
Two complexes of 3,5‐bis(4‐carboxyphenylmethyloxy) benzoic acid (H 3 L) and transition metal ions, [Zn 2 (μ 3 ‐OH)(L)] · H 2 O ( 1 ) and (H 3 O)[Cu 2 (μ 4 ‐O)(L)] · H 2 O ( 2 ) were synthesized under hydrothermal conditions. Their structures were determined by single‐crystal X‐ray diffraction and further characterized by elemental analysis, IR and diffusion UV/Vis/NIR spectroscopy, and TGA. The complexes possess 3D open frameworks with different shapes (rhombus / square) and sizes of channels resulting from the trans/cis ‐configurations and coordination modes (μ 8 ‐η 1 :η 1 :η 1 :η 2 :η 1 :η 2 for 1 and μ 6 ‐η 1 :η 1 :η 1 :η 1 :η 1 :η 1 for 2 ) of the flexible ligand and the property of transition metal ions. In addition, photoluminescence spectra of 1 and 2 were also discussed. In 2 there exists antiferromagnetic interaction showing that μ 4 ‐O atom in {Cu 2 O} n chain does not favor the magnetic exchange between Cu 2+ ions.