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Tetra-kis(?-3-chloro-benzoato-?(2) O:O')bis-[(N,N-di-ethyl-nicotinamide-?N (1))copper(II)].

ABSTRACT: In the title centrosymmetric binuclear Cu(II) complex, [Cu2(C7H4ClO2)4(C10H14N2O)2], the two Cu(II) cations [Cu?Cu = 2.6314?(4)?Å] are bridged by four 3-chloro-benzoate (CB) anions. The four carboxyl-ate O atoms around each Cu(II) cation form a distorted square-planar arrangement, the distorted square-pyramidal coordination geometry being completed by the pyridine N atom of the N,N-di-ethyl-nicotinamide (DENA) mol-ecule. The dihedral angle between the benzene ring and the carboxyl-ate group is 4.49?(11)° in one of the independent CB ligands and 12.00?(10)° in the other. The benzene rings of the independent CB ligands are oriented at a dihedral angle of 84.13?(6)°. In the crystal, weak C-H?O hydrogen bonds link the binuclear complex mol-ecules into supra-molecular chains running along [101].

SUBMITTER: Bozkurt N

PROVIDER: S-EPMC3793677 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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Tetra-kis(μ-3-chloro-benzoato-κ(2) O:O')bis-[(N,N-di-ethyl-nicotinamide-κN (1))copper(II)].

Bozkurt Nihat N Tunç Tuncay T Caylak Delibaş Nagihan N Necefoğlu Hacali H Hökelek Tuncer T

Acta crystallographica. Section E, Structure reports online 20130703 Pt 8

In the title centrosymmetric binuclear Cu(II) complex, [Cu2(C7H4ClO2)4(C10H14N2O)2], the two Cu(II) cations [Cu⋯Cu = 2.6314 (4) Å] are bridged by four 3-chloro-benzoate (CB) anions. The four carboxyl-ate O atoms around each Cu(II) cation form a distorted square-planar arrangement, the distorted square-pyramidal coordination geometry being completed by the pyridine N atom of the N,N-di-ethyl-nicotinamide (DENA) mol-ecule. The dihedral angle between the benzene ring and the carboxyl-ate group is 4 ...[more]

PMID: 24109264

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Crystal structure of tetra-kis-(μ-2,4,6-tri-methyl-benzoato-κ(2) O:O')bis-[(nicotinamide-κN (1))copper(II)].

Project description:In the title binuclear Cu(II) complex, [Cu2(C10H11O2)4(C6H6N2O)2], the two Cu(II) cations [Cu⋯Cu = 2.5990 (5) Å] are bridged by four 2,4,6-tri-methyl-benzoate (TMB) anions. The four nearest O atoms around each Cu(II) cation form distorted square-planar arrangements and the distorted square-pyramidal coordinations are completed by the pyridine N atoms of nicotinamide mol-ecules at distances of 2.164 (2) and 2.165 (2) Å, respectively. The Cu(II) cations are displaced by -0.2045 (3) and 0.2029 (3) Å from the corresponding planes formed by the nearest four O atoms. In the mol-ecule, the dihedral angles between the planes of the benzene rings and the adjacent carboxyl-ate groups are 80.6 (2), 51.4 (2), 24.4 (2) and 32.5 (2)°, while the planes of the pyridine rings are oriented at a dihedral angle of 11.28 (10)°. In the crystal, bifurcated N-H⋯O and weak C-H⋯O hydrogen bonds link the mol-ecules, enclosing R 2 (2)(8) and R 4 (4)(8) ring motifs, into a three-dimensional network. The structure contains a solvent-accessible void of 72 Å(3), but there is no solvent mol-ecule located within this void. The crystal studied was an inversion twin refined with a minor component of 0.488 (8).

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Poly[[tetra-kis-(μ-1,2-di-4-pyridyl-ethyl-ene-κN:N')tetra-kis-(seleno-cyanato-κN)dimanganese(II)] 1,2-di-4-pyridyl-ethyl-ene disolvate].

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Tetra-kis-(μ-benzoato-κO:O')bis{[4-(di-methyl-amino)-pyridine-κN]zinc(II)}.

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Aqua-bis-(3-chloro-benzoato-κO)bis-(N,N-di-ethyl-nicotinamide-κN)copper(II).

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Tetra-kis[μ-4-(dimethyl-amino)benzoato-κO:O']bis-[(N,N-diethyl-nicotinamide-κN)zinc(II)].

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Di-aqua-bis-(3-chloro-benzoato-κO)bis-(nicotinamide-κN (1))cobalt(II).

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Tetra-kis(μ-4-ethyl-benzoato-κO:O')-bis-[(4-ethyl-benzoic acid-κO)copper(II)].

Project description:The molecule of the title compound, [Cu(2)(C(9)H(9)O(2))(4)(C(9)H(10)O(2))(2)], lies on a center of inversion. It consists of four bridging ethyl-benzoate ligands, forming a cage around two Cu atoms in a syn-syn configuration, and two monodentate ethyl-benzoic acid ligands bonded apically to the square-planar Cu atoms. The Cu⋯Cu distance is 2.6047 (5) Å.

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catena-Poly[[tetra-kis-(μ-penta-fluoro-benzoato-κO:O')dimolybdenum(II)]-μ-4,4'-bipyridine-κN:N'].

Project description:In the title compound, [Mo(2)(C(7)F(5)O(2))(4)(C(10)H(8)N(2))](n), the mol-ecule forms a paddle-wheel-type structure. Each Mo(2) (4+) unit is equatorially coordinated by four pentafluoro-benzoate groups, while the axial positions are occupied by two 4,4'-bipyridine mol-ecules. The Mo-Mo bond length of 2.1227 (4) Å is representative of a dimolybdenum quadruple bond. An infinite linear chain parallel to [110] is formed by the Mo(2) (4+) unit coordinating axially to the two N atoms of the 4,4'-bipyridine ligand [Mo-N = 2.594 (2) Å]. The crystal packing shows mol-ecules linked together into a three-dimensional network via Mo-N coordination inter-actions and weak π-π stacking inter-actions between perfluoro-phenyl rings [centroid-centroid distance = 3.7280 (3) Å and centroid-to-plane distance = 3.6103 (12) Å between two penta-fluoro-phenyl rings].

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