Tetra-, Penta- and Hexa-Coordinated Transition Metal Complexes Constructed from Coumarin-Containing N2O2 Ligand

Three newly designed complexes, [Cu(L)]·CHCl3 (1), [Co(L)(MeOH)]·CHCl3 (2) and [{Ni(L)(MeOH)(PhCOO)}2Ni] (3) a coumarin-containing Salamo-type chelating ligand (H2L) have been synthesized and characterized by elemental analyses, IR and UV-VIS spectra, and X-ray crystallography. Complex 1 includes on...

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Main Authors: Lei Gao, Chang Liu, Fei Wang, Wen-Kui Dong
Format: Article
Language:English
Published: MDPI AG 2018-02-01
Series:Crystals
Subjects:
Online Access:http://www.mdpi.com/2073-4352/8/2/77
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spelling doaj-10a3fd6dee254d799aede47acad14ab92020-11-24T21:34:24ZengMDPI AGCrystals2073-43522018-02-01827710.3390/cryst8020077cryst8020077Tetra-, Penta- and Hexa-Coordinated Transition Metal Complexes Constructed from Coumarin-Containing N2O2 LigandLei Gao0Chang Liu1Fei Wang2Wen-Kui Dong3School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, ChinaSchool of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, ChinaSchool of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, ChinaSchool of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, ChinaThree newly designed complexes, [Cu(L)]·CHCl3 (1), [Co(L)(MeOH)]·CHCl3 (2) and [{Ni(L)(MeOH)(PhCOO)}2Ni] (3) a coumarin-containing Salamo-type chelating ligand (H2L) have been synthesized and characterized by elemental analyses, IR and UV-VIS spectra, and X-ray crystallography. Complex 1 includes one Cu(II) atom, one completely deprotonated (L)2− unit and one crystalling chloroform molecule, the Cu(II) atom shows a square-planar geometry. Complex 2 includes one Co(II) atom, one completely deprotonated (L)2− unit, one coordinated methanol molecule and one crystalling chloroform molecule. The Co(II) atom is a distorted trigonal-bipyramidal geometry. While complex 3 includes three Ni(II) atoms, two completely deprotonated (L)2− units, two benzoates and two coordinated methanol molecules. The complexes 1 and 2 are both possess three-dimensional supra-molecular structures by abundant noncovalent interactions. But, complex 3 formed a two-dimensional supra-molecular structure by intra-molecular hydrogen bonds. In addition, the antimicrobial and fluorescence properties of H2L and its complexes 1, 2 and 3 were also investigated.http://www.mdpi.com/2073-4352/8/2/77coumarin-containing N2O2 ligandcomplexsynthesiscrystal structureproperty
collection DOAJ
language English
format Article
sources DOAJ
author Lei Gao
Chang Liu
Fei Wang
Wen-Kui Dong
spellingShingle Lei Gao
Chang Liu
Fei Wang
Wen-Kui Dong
Tetra-, Penta- and Hexa-Coordinated Transition Metal Complexes Constructed from Coumarin-Containing N2O2 Ligand
Crystals
coumarin-containing N2O2 ligand
complex
synthesis
crystal structure
property
author_facet Lei Gao
Chang Liu
Fei Wang
Wen-Kui Dong
author_sort Lei Gao
title Tetra-, Penta- and Hexa-Coordinated Transition Metal Complexes Constructed from Coumarin-Containing N2O2 Ligand
title_short Tetra-, Penta- and Hexa-Coordinated Transition Metal Complexes Constructed from Coumarin-Containing N2O2 Ligand
title_full Tetra-, Penta- and Hexa-Coordinated Transition Metal Complexes Constructed from Coumarin-Containing N2O2 Ligand
title_fullStr Tetra-, Penta- and Hexa-Coordinated Transition Metal Complexes Constructed from Coumarin-Containing N2O2 Ligand
title_full_unstemmed Tetra-, Penta- and Hexa-Coordinated Transition Metal Complexes Constructed from Coumarin-Containing N2O2 Ligand
title_sort tetra-, penta- and hexa-coordinated transition metal complexes constructed from coumarin-containing n2o2 ligand
publisher MDPI AG
series Crystals
issn 2073-4352
publishDate 2018-02-01
description Three newly designed complexes, [Cu(L)]·CHCl3 (1), [Co(L)(MeOH)]·CHCl3 (2) and [{Ni(L)(MeOH)(PhCOO)}2Ni] (3) a coumarin-containing Salamo-type chelating ligand (H2L) have been synthesized and characterized by elemental analyses, IR and UV-VIS spectra, and X-ray crystallography. Complex 1 includes one Cu(II) atom, one completely deprotonated (L)2− unit and one crystalling chloroform molecule, the Cu(II) atom shows a square-planar geometry. Complex 2 includes one Co(II) atom, one completely deprotonated (L)2− unit, one coordinated methanol molecule and one crystalling chloroform molecule. The Co(II) atom is a distorted trigonal-bipyramidal geometry. While complex 3 includes three Ni(II) atoms, two completely deprotonated (L)2− units, two benzoates and two coordinated methanol molecules. The complexes 1 and 2 are both possess three-dimensional supra-molecular structures by abundant noncovalent interactions. But, complex 3 formed a two-dimensional supra-molecular structure by intra-molecular hydrogen bonds. In addition, the antimicrobial and fluorescence properties of H2L and its complexes 1, 2 and 3 were also investigated.
topic coumarin-containing N2O2 ligand
complex
synthesis
crystal structure
property
url http://www.mdpi.com/2073-4352/8/2/77
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AT changliu tetrapentaandhexacoordinatedtransitionmetalcomplexesconstructedfromcoumarincontainingn2o2ligand
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