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Crystal structure of (2-formyl-phenolato-?(2) O,O')oxido(2-{[(2-oxidoeth-yl)imino]-meth-yl}phenolato-?(3) O,N,O')vanadium(V).

ABSTRACT: In the unsymmetrical title vanadyl complex, [V(C9H9NO2)(C7H5O2)O], one of the ligands (2-formyl-phenol) is disordered over two sets of sites, with an occupancy ratio of 0.55?(2):0.45?(2). The metal atom is hexa-coordinated, with a distorted octa-hedral geometry. The vanadyl O atom (which subtends the shortest V-O bond) occupies one of the apical positions and the remaining axial bond (the longest in the polyhedron) is provided by the (disordered) formyl O atoms. The basal plane is defined by the two phenoxide O atoms, the imino-alcoholic O and the imino N atom. The planes of the two benzene rings are almost perpendicular to each other, subtending an inter-planar angle of 84.1?(2)° between the major parts. The crystal structure features weak C-H?O and C-H?? inter-actions, forming a lateral arrangement of adjacent molecules.

SUBMITTER: Parimala S

PROVIDER: S-EPMC4420105 | biostudies-other | 2015 May

REPOSITORIES: biostudies-other

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Bis{?-2-[(pyridin-2-yl)imino-meth-yl]phenolato}bis-[(2-formyl-phenolato)copper(II)].

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Project description:In the title mononuclear dioxidovanadium(V) complex, [V(C(13)H(16)BrN(2)O(2))O(2)], the V(V) atom is five-coordinated by one phenolate O, one imine N and one morpholine N atom of the Schiff base ligand, and by two oxide O atoms, forming a distorted square-pyramidal geometry. In the crystal, weak C-H?O inter-actions and a short Br?Br contact [3.4597?(12)?Å] are observed.

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Project description:In the title dinuclear complex, [Cu(2)(C(14)H(20)ClN(4)O)ClO]·3H(2)O, one Cu(II) cation assumes a distorted square-planar coordination geometry and the other a distorted square-pyramidal coordination geometry. Both Cu(II) cations are N,N',O-chelated by one arm of the 2,6-bis-[(2-amino-eth-yl)imino-meth-yl]-4-chloro-phenolate anion, and one oxide anion bridges the two Cu(II) cations, forming a dinuclear complex. One of the Cu(II) cations is further coordinated by an Cl(-) anion in the apical direction. In the crystal, lattice water mol-ecules are linked with the complex mol-ecule via O-H?Cl hydrogen bonds while O-H?O hydrogen bonding occurs between lattice water mol-ecules , forming three-dimensional network structure.

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Crystal structure of bis-(2-{[(3-bromo-prop-yl)imino]-meth-yl}phenolato-?(2) N,O)copper(II).

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