The title complex, [Cu(C(11)H(11)NO(6))(H(2)O)], contains a Cu(II) atom in a distorted square-pyramidal geometry. The metal centre is coordinated in the basal sites by one water mol-ecule and two carboxyl-ate O atoms and one N atom of the tetra-dentate ligand [Cu-O range, 1.9376 (11)-1.9541 (12), Cu-N, 1.9929 (12) Å] while the apical site is occupied by a hydro-quinone O donor atom [Cu-O, 2.3746 (12) Å]. Inter-molecular hydrogen bonding inter-actions involving both hydro-quinone hydr-oxy groups and the coordinated water as donors give a three-dimensional framework structure.
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http://dx.doi.org/10.1107/S1600536809042238 | DOI Listing |
Acta Crystallogr E Crystallogr Commun
September 2024
"PetruPoni" Institute of Macromolecular Chemistry, Aleea Gr., Ghica Voda 41A, 700487 Iasi, Romania.
The title compound, bis-[μ-2,2'-(4-1,2,4-triazole-3,5-di-yl)di-acetato]-bis-[di-aqua-copper(II)] dihydrate, [Cu(CHNO)(HO)]·2HO, is a dinuclear octa-hedral Cu triazole-based complex. The central copper atoms are hexa-coordinated by two nitro-gen atoms in the equatorial positions, two equatorial oxygen atoms of two carboxyl-ate substituents in position 3 and 5 of the 1,2,4-triazole ring, and two axial oxygen atoms of two water mol-ecules. Two additional solvent water mol-ecules are linked to the title mol-ecule by O-H⋯N and O⋯H-O hydrogen bonds.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
January 2024
Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, 01601 Kyiv, Ukraine.
The title compound, [Cu(H)(HO)] or [Cu(CHNO)(HO)], is a mononuclear octa-hedral Cu complex based on 5-methyl-1-1,2,4-triazole-3-carb-oxy-lic acid (H ). [Cu(H)(HO)] was synthesized by reaction of H with copper(II) nitrate hexa-hydrate (2:1 stoichiometric ratio) in water under ambient conditions to produce clear light-blue crystals. The central Cu atom exhibits an NO coordination environment in an elongated octa-hedral geometry provided by two bidentate H anions in the equatorial plane and two water mol-ecules in the axial positions.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
March 2023
Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
The mol-ecular structure of the title compound, [Cu(CHNO)(HO)]·[Cu(CHNO)(HO)], consists of two different mol-ecules in the asymmetric unit. Both of the structures consist of a tridentate ligand synthesized from l-valine and salicyl-aldehyde, and one water mol-ecule or two water mol-ecules coordinating to Cu. They have a square-planar (mol-ecule 1) or a square-pyramidal (mol-ecule 2) coordination geometry.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
December 2021
Department of Chemistry, Drexel University, Philadelphia, PA 19104-2816, USA.
The core of the title complex, bis-[hexa-aqua-hemi-aqua-penta-kis-(μ-glycine-hydroxamato)sulfato-penta-copper(II)terbium(III)] sulfate hexa-hydrate, [TbCu(SO)(GlyHA)(HO)](SO)·6HO (), which belongs to the 15-metalla-crown-5 family, consists of five glycine-hydroxamate dianions (GlyHA; CHNO) and five copper(II) ions linked together forming a metallamacrocyclic moiety. The terbium(III) ion is connected to the centre of the metallamacrocycle through five hydroxamate oxygen atoms. The coordination environment of the Tb ion is completed to an octa-coordination level by oxygen atoms of a bidentate sulfate and an apically coordinated water mol-ecule, while the copper(II) atoms are square-planar, penta- or hexa-coordinate due to the apical coordination of water mol-ecules.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
July 2021
Département de Chimie, Faculté des Sciences et Techniques, Université Cheik Anta Diop, Dakar, Senegal.
The title mol-ecular structure, namely, di-aqua-tris-(μ-1,3-bis-{[1-(2-oxidophen-yl)ethyl-idene]amino}-propan-2-olato)-μ-hydroxido-dinitrato-hexa-copper(II) ethanol tris-olvate, [Cu(CHNO)(NO)(OH)(HO)]·3CHOH, corres-ponds to a non-symmetric hexa-nuclear copper complex. The complex exhibits one core in which three Cu metal centres are mutually inter-connected, two by two, three phenolato oxygen anions acting in a μ-mode. These three copper cations are inter-connected in a μ-mode by one hydroxyl group.
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