(Methanol-κO)(methano­lato-κO)oxido[N-(2-oxidobenzyl­idene)phenyl­alaninato-κ3 O,N,O′]vanadium(V)

In the title complex, [V(C16H13NO3)(CH3O)O(CH3OH)], the VV atom is six-coordinated by a tridentate ligand derived from the condensation of salicyl­aldehyde and l-phenyl­alanine, a vanadyl O atom, a methano­late O atom and a methanol O atom, forming a distorted octa­hedral coordination geometry. In the crystal, inter­molecular O—H⋯O and C—H⋯O hydrogen bonds result in a two-dimensional structure parallel to (001)

Di-μ-oxido-bis­[(4-formyl-2-methoxy­phenolato-κO 1)oxido(1,10-phenan­throline-κ2 N,N′)vanadium(V)]

The title complex, [V2(C8H7O3)2O4(C12H8N2)2], is a centrosymmetric dimer formed by two VV complex units bridged by two μ2-oxido groups. The VV atom is six-coordinated by three oxide O atoms, one O atom from a vanillinate ligand and two N atoms from a 1,10-phenanthroline ligand in a significantly distorted octa­hedral geometry. In the crystal structure, weak inter­molecular C—H⋯O hydrogen bonds connect the mol­ecules into a three-dimensional network

(Methoxo-κO)oxidobis(quinolin-8-olato-κ2 N,O)vanadium(V)

In the title complex, [V(C9H6NO)2(CH3O)O], the central VV atom is coordinated by the O atoms from the oxido and methoxo ligands and the N and O atoms of two bis-chelating quinolin-8-olate ligands, forming a distorted octa­hedral environment. In the crystal structure, weak inter­molecular C—H⋯O hydrogen bonds connect mol­ecules into centrosymmetric dimers which are, in turn, linked by weak C—H⋯π inter­actions into chains along the b axis

Tetra­kis(μ3-2-{[1,1-bis­(hydroxy­meth­yl)-2-oxidoeth­yl]imino­meth­yl}-6-methoxy­phenol­ato)tetra­nickel(II) tetra­hydrate

The title complex, [Ni4(C12H15NO4)4]·4H2O, has crystal­lographic fourfold inversion symmetry, with each NiII ion coordinated in a slightly distorted square-pyramidal coordination environment and forming an Ni4O4 cubane-like core. In the crystal structure, inter­molecular O—H⋯O hydrogen bonds connect complex and water mol­ecules to form a three-dimensional network. The O atom of one of the unique hydroxy­methyl groups is disordered over two sites, with the ratio of occupancies being approximately 0.79:0.21

(2,2′-Bipyridine-κ2 N,N′)[N-(2-oxido-1-naphthyl­idene)threoninato-κ3 O 1,N,O 2]copper(II)

In the title complex, [Cu(C15H13NO4)(C10H8N2)], the Schiff base ligand is derived from the condensation of 2-hydr­oxy-1-naphthaldehyde and l-threonine. The CuII atom is five-coordinated by one N atom and two O atoms from the Schiff base ligand and by two N atoms from a 2,2′-bipyridine ligand in a distorted square-pyramidal geometry. In the crystal structure, the combination of inter­molecular O—H⋯O and C—H⋯O hydrogen bonds leads to a two-dimensional network

Bis[μ-N-(3-meth­oxy-2-oxidobenzyl­idene-1:2κ2 O 2:O 2)-l-isoleucinato-2κ2 N,O]bis­(1,10-phenanthroline-1κ2 N,N′)dinickel(II) methanol tetra­solvate trihydrate

In the title complex, [Ni2(C14H17NO4)2(C12H8N2)2]·4CH3OH·3H2O, the two NiII ions are bridged by two Schiff base anions, leading to a dinuclear complex. One NiII ion is six-coordinated by four O atoms and two N atoms of two tridentate Schiff base ligands derived from the condensation of l-isoleucine and o-vanillin. The other NiII ion is six-coordinated by four N atoms of two 1,10-phenanthroline ligands and two O atoms of the Schiff base ligands. In the crystal, inter­molecular O—H⋯O and C—H⋯O hydrogen bonds lead to a three-dimensional structure. Intra­molecular C—H⋯O hydrogen bonds are also present. One of the methyl groups of the l-isoleucinate moieties is disordered over two sets of sites with an occupancy ratio of 0.687 (19):0.313 (19) and two methanol mol­ecules are half-occupied

[N-(3-Meth­oxy-2-oxidobenzyl­idene-κO 2)threoninato-κ2 O 1,N](1,10-phenanthroline-κ2 N,N′)copper(II) hemihydrate

In the title complex, [Cu(C12H13NO5)(C12H8N2)]·0.5H2O, the CuII ion is five-coordinated by one N atom and two O atoms from a tridentate Schiff base ligand, derived from the condensation of l-threonine and o-vanillin, and two N atoms from a 1,10-phenanthroline ligand in a distorted square-pyramidal geometry. In the crystal, inter­molecular O—H⋯O hydrogen bonds form a one-dimensional left-handed helical structureextending parallel to [001]. The water molecule of crystallization shows half-occupancy

{N-[(2-Oxido-1-naphth­yl)methyl­idene]­serinato-κ3 O,N,O′}(1,10-phenanthroline-κ2 N,N′)copper(II)

In the title complex, [Cu(C14H11NO4)(C12H8N2)], the tridentate Schiff base ligand is derived from the condensation of 2-hydr­oxy-1-naphthaldehyde and l-serine. The CuII atom is five-coordinated by one N atom and two O atoms from the Schiff base ligand and by two N atoms from a 1,10-phenanthroline ligand in a distorted square-pyramidal geometry. In the crystal structure, the combination of inter­molecular O—H⋯O and C—H⋯O hydrogen bonds results in a two-dimensional network structure parallel to (001)

Oxido{N-[(2-oxido-1-naphthyl-κO)methyl­idene]asparaginato-κ2 O 1,N 2}(1,10-phenanthroline-κ2 N,N′)vanadium(IV) N,N-dimethyl­formamide monosolvate

The tridentate Schiff base ligand of the title complex, [V(C15H12N2O4)O(C12H8N2)]·C3H7NO, was derived from the condensation of 2-hy­droxy-1-naphthaldehyde and l-asparagine. The central VIV atom is six-coordinated by one oxide O atom, two N atoms from 1,10-phenanthroline and one N atom and two O atoms from the Schiff base ligand in a distorted octa­hedral geometry. In the crystal structure, inter­molecular N—H⋯O hydrogen bonds connect mol­ecules into centrosymmetric dimers. The C atoms of the dimethyl­formamide solvent mol­ecule are disordered over two sites with site-occupancy factors of 0.732 (13) and 0.268 (13)

{2-(4-Hy­droxy­phen­yl)-2-[(3-meth­oxy-2-oxidobenzyl­idene)amino-κ2 O 2,N]propanoato-κO}(1,10-phenanthroline-κ2 N,N′)copper(II) dihydrate

In the title complex, [Cu(C17H15NO5)(C12H8N2)]·2H2O, the central CuII ion is five-coordinate, bound to one N atom and two O atoms from the Schiff base ligand and by two N atoms from a 1,10-phenanthroline ligand in a distorted square-pyramidal configuration. In the crystal, inter­molecular O—H⋯O and C—H⋯O hydrogen bonds form a two-dimensional network parallel to (001)