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Diaqua-bis(benzyl-oxyacetato)copper(II).

ABSTRACT: In the title mononuclear complex, [Cu(C(9)H(9)O(3))(2)(H(2)O)(2)], the Cu(II) ion, located on an inversion center, is hexa-coordinated by four O atoms from two benzyl-oxyacetate ligands [Cu-O = 1.9420?(14) and 2.2922?(14)?Å] and two water mol-ecules [Cu-O = 2.0157?(15)?Å] in a distorted octa-hedral geometry. In the crystal structure, inter-molecular O-H?O hydrogen bonds link the mol-ecules into layers parallel to the bc plane.

SUBMITTER: Sun SL

PROVIDER: S-EPMC2961141 | biostudies-literature | 2008 Apr

REPOSITORIES: biostudies-literature

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Diaqua-bis(benzyl-oxyacetato)copper(II).

Sun Sheng-Li SL Chen Chun-Liang CL Gu Chang-Sheng CS Song Weng-Dong WD Hao Xiao-Min XM

Acta crystallographica. Section E, Structure reports online 20080423 Pt 5

In the title mononuclear complex, [Cu(C(9)H(9)O(3))(2)(H(2)O)(2)], the Cu(II) ion, located on an inversion center, is hexa-coordinated by four O atoms from two benzyl-oxyacetate ligands [Cu-O = 1.9420 (14) and 2.2922 (14) Å] and two water mol-ecules [Cu-O = 2.0157 (15) Å] in a distorted octa-hedral geometry. In the crystal structure, inter-molecular O-H⋯O hydrogen bonds link the mol-ecules into layers parallel to the bc plane. ...[more]

PMID: 21202226

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Diaqua-bis[2-(benzyl-oxy)acetato]cobalt(II).

Project description:In the mononuclear title complex, [Co(C(9)H(9)O(3))(2)(H(2)O)(2)], each Co(II) atom is located on an inversion center and is hexa-coordinated by four O atoms from two benzyl-oxyacetate ligands [Co-O bond lengths = 2.0487 (9) and 2.1090 (9) Å] and two water mol-ecules [Co-O bond length = 2.0873 (9) Å] in a distorted octa-hedral geometry. In the crystal structure, inter-molecular hydrogen bonds and π-π stacking inter-actions [centroid-centroid distance between phenyl rings = 3.692 (2) Å] link the mol-ecules into a supra-molecular structure.

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Bis(acetonitrile-?N)diaqua-bis-(perchlorato-?O)copper(II).

Project description:In the title compound, [Cu(ClO(4))(2)(CH(3)CN)(2)(H(2)O)(2)], the Cu(2+) ion, located on a special position (site symmetry [Formula: see text]), is coordinated by six monodentate ligands, viz. an N-coordin-ated acetonitrile, a perchlorate anion and a water mol-ecule, and their symmetry-related counterparts. The perchlorate anion is disordered over two sets of sites with occupancies of 0.53?(2) and 0.47?(2). The crystal structure is stabilized by O-H?O hydrogen bonds involving the perchlorate ion and aqua H atoms.

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Diaqua-bis-(perchlorato)(1,10-phenanthroline)copper(II).

Project description:In the title compound, [Cu(ClO(4))(2)(C(12)H(8)N(2))(H(2)O)(2)], the Cu(II) atom is coordinated in a square-planar fashion by the two N atoms of a chelating 1,10-phenanthroline ligand and by two water mol-ecules trans to the N atoms. The coordination sphere of the metal atom is augmented by O atoms of two weakly bonded perchlorate anions, thus yielding a strongly distorted CuN(2)O(4) octa-hedral environment. The crystal packing is stabilized by O-H⋯O hydrogen bonds between the water mol-ecules and the perchlorate anions. In addition, the organic mol-ecules are associated by π-π stacking inter-actions between symmetry-equivalent anti-parallel non-nitro-gen aromatic rings, with inter-planar distances of 3.543 (2) Å.

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Diaqua-bis-(2-iodo-benzoato-κO)bis-(nicotinamide-κN(1))copper(II).

Project description:In the title complex, [Cu(C(7)H(4)IO(2))(2)(C(6)H(6)N(2)O)(2)(H(2)O)(2)], the Cu(II) cation is located on an inversion center and is coordinated by two monodentate 2-iodo-benzoate (IB) anions, two nicotinamide (NA) ligands and two water mol-ecules in a distorted octa-hedral coordination geometry. The dihedral angle between the carboxyl-ate group and the adjacent benzene ring is 32.12 (14)°, while the pyridine ring and the benzene ring are oriented at a dihedral angle of 82.02 (5)°. The coordinating water mol-ecule links with the carboxyl-ate group via an intra-molecular O-H⋯O hydrogen bond. In the crystal, N-H⋯O, O-H⋯O and weak C-H⋯O hydrogen bonds link the mol-ecules into a three-dimensional supra-molecular network.

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Diaqua-(2,2'-bipyridine-κN,N')bis-(perchlorato-κO)copper(II).

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Diaqua-bis-(4-formyl-benzoato-κO(1))bis-(nicotinamide-κN(1))copper(II).

Project description:In the title complex, [Cu(C(8)H(5)O(3))(2)(C(6)H(6)N(2)O)(2)(H(2)O)(2)], the Cu(II) cation is located on an inversion center and is coordinated by two 4-formyl-benzoate (FB) anions, two nicotinamide (NA) ligands and two water mol-ecules in an elongated distorted octa-hedral geometry. The dihedral angle between the carboxyl-ate group and the adjacent benzene ring is 23.00 (10)°, while the pyridine ring and the benzene ring are oriented at a dihedral angle of 85.34 (4)°. An intra-molecular O-H⋯O hydrogen bond occurs between coordinating water mol-ecule and the carboxyl-ate group. In the crystal, N-H⋯O, O-H⋯O and weak C-H⋯O hydrogen bonds link the mol-ecules into a three-dimensional supra-molecular network. A weak C-H⋯π inter-action also occurs in the crystal.

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Diaqua-bis-(hydrogen tartrato)copper(II) dihydrate.

Project description:The title complex, [Cu(C(4)H(5)O(6))(2)(H(2)O)(2)]·2H(2)O, contains a Cu(II) ion lying on an inversion centre. The coordination geometry of the Cu(II) ion is a distorted octa-hedron with four O atoms from two hydrogen tartrate ions occupying the equatorial positions and two O atoms from two coordinated water mol-ecules occupying the axial positions. In the crystal structure, inter-molecular O-H?O and C-H?O hydrogen bonds link the mol-ecules into a three-dimensional network.

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Diaqua-bis(5-phenyl-1H-pyrazole-3-carboxyl-ato)copper(II).

Project description:In the centrosymmetric title compound, [Cu(C(10)H(7)N(2)O(2))(2)(H(2)O)(2)], the Cu(II) ion occupies an inversion centre and exhibits a distorted octa-hedral geometry. The phenyl and pyrazole rings of the ligand are twisted by an angle of 11.36?(8)°. In the crystal structure, mol-ecules are linked into a two-dimensional network parallel to the (010) plane by O-H?O and N-H?O hydrogen bonds.

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Diaqua-bis-(2-oxo-2H-chromene-3-carboxyl-ato)copper(II).

Project description:In the title compound, [Cu(C(10)H(5)O(4))(2)(H(2)O)(2)], the Cu(II) atom lies on a crystallographic inversion center and exhibits an octa-hedral coordination defined by two O atoms from water mol-ecules in the axial positions and by four O atoms from two deprotonated coumarin-3-carb-oxy-lic acid ligands in the equatorial positions. The angles around the Cu(II) atom vary between 85.32 (6) and 94.68 (6)°. The Cu-O bond distances between the Cu(II) atom and the O atoms vary between 1.9424 (14) and 2.3229 (15) Å. The layers inter-digitate via face-to-face aromatic inter-actions [3.6490 (8) Å] between coumarin moieties such that the inter-layer separation is 10.460 (2) Å, i.e. the length of the c axis. O-H⋯O hydrogen bonds between the H atoms of coordinated water mol-ecules and the O atoms of carboxyl-ate groups link the complex mol-ecules into layers parallel to the ab plane.

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Diaqua-bis-(N,N'-diethyl-nicotinamide-?N)bis-(4-ethyl-benzoato-?O)copper(II).

Project description:The title Cu(II) complex, [Cu(C(9)H(9)O(2))(2)(C(10)H(14)N(2)O)(2)(H(2)O)(2)], contains two 4-ethyl-benzoate (PEB) ligands, two monodentate diethyl-nicotinamide (DENA) ligands and two water mol-ecules. The four O atoms in the equatorial plane around the Cu(II) ion form a slightly distorted square-planar arrangement, while the distorted octa-hedral coordination is completed by the two N atoms of the DENA ligands in the axial positions. Intra-molecular O-H?O hydrogen bonds link the water mol-ecules to the carboxyl-ate groups. The dihedral angles between the carboxyl-ate groups and the adjacent benzene rings are 4.6?(3) and 3.7?(2)°, while the pyridine rings and the benzene rings are oriented at dihedral angles of 6.82?(11) and 3.63?(14)°. In the crystal, inter-molecular O-H?O hydrogen bonds link the mol-ecules into chains propagating along [010]. C-H?O inter-actions and a ?-? contact between the pyridine rings [centroid-centroid distance = 3.469?(2)?Å] are also observed.

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