(N-Benzoyl-N-phenyl-hydroxy-laminato)carbon-yl(tri-phenyl-arsine)rhodium(I).

The mol-ecule of the title compound, [Rh(C13H10NO2){As(C6H5)3}(CO)] or [Rh(BPHA)(AsPh3)(CO)] (BPHA is the N-benzoyl-N-phenyl-hydroxy-laminate anion), comprises a bidentate N-benzoyl-N-phenyl-hydroxy-laminate anion coordinating through the O atoms to the soft Lewis acid, rhodium(I), and two monodentate ligands, viz. tri-phenyl-arsine and carbonyl. The resulting CO2As coordination environment around the central RhI atom is distorted square planar.=.

trans-Bis(1,3-diphenyl-propane-1,3-dionato)(methanol)oxidovanadium(IV) methanol disolvate.

In the title compound, [V(C15H11O2)2O(CH3OH)]·2CH3OH, the V(IV) atom is coordinated by two 1,3-diphenyl-propane-1,3-dionate ligands and an oxide ligand in an axial position. The sixth position is occupied by the O atom of a methanol group bonded trans to the oxide atom. The octa-hedral geometry is significantly distorted, with the V(IV) atom lying 0.330 (3) Šabove the equatorial plane formed by the O atoms of the two ß-diketonate ligands. In the crystal, O-H⋯O hydrogen bonds between the coordinating methanol group in the complex and the two methanol solvent mol-ecules lead to the formation of polymeric chains along the c-axis direction. Weak C-H⋯O contacts are also observed.

Disodium diaqua-bis-(methyl-enedi-phos-pho-nato-κO,O')cobaltate(II) dihydrate.

In the title compound, Na(2)[Co(CH(4)O(6)P(2))(2)(H(2)O)(2)]·2H(2)O, the asymmetric unit is composed of one methyl-enediphospho-nate ligand and one water mol-ecule, which both are coordinated to a Co(II) atom, as well as a non-coordinated water mol-ecule and a sodium cation. The Co(II) atom occupies a special position on a crystallographic inversion centre. The slightly distorted Co(II)O(6) octa-hedral coordination environment is composed of two bidentate methyl-enediphospho-nate ligands and two coordinated water mol-ecules in trans positions. The sodium ion is octa-hedrally coordinated to six O atoms with Na-O distances ranging from 2.3149 (12) to 2.6243 (12) Å. An extensive three-dimensional network of inter-molecular as well as intra-molecular O-H⋯O and C-H⋯O hydrogen bonding inter-acions is present.

Dicaesium diaqua-bis-(methyl-ene-diphospho-nato-κO,O')cobaltate(II).

The asymmetric unit of the title compound, Cs(2)[Co(CH(4)O(6)P(2))(2)(H(2)O)(2)], is comprised of one bidentate methyl-enediphospho-nate ligand and one water mol-ecule which are coordinated to the Co(II) atom, as well as a caesium counter-cation. The Co atom occupies a special position on a crystallographic inversion center. The caesium ion is octa-hedrally coordinated by six O atoms with Cs-O distances ranging from 3.119 (2) to 3.296 (2) Å. A three-dimensional network is formed through O-H⋯O hydrogen bonds.

(N-Benzoyl-N'-phenyl-thio-urea-κS)chlorido(η-1,5-cyclo-octa-diene)rhodium(I).

The title compound, [RhCl(C(8)H(12))(C(14)H(12)N(2)OS)], is a rhodium(I) derivative with a functionalized thio-urea ligand. Despite the presence of several heteroatoms, the thio-urea ligand coordinates only in a monodentate fashion via the S atom. The geometry of the coordination sphere is approximately square planar about the Rh(I) atom, with two bonds to the π-electrons of the 1,5-cyclo-octa-diene ligand, one bond to the Cl(-) ligand and one bond to the S atom of the thio-urea ligand. The mol-ecular structure is stabilized by intra-molecular N-H⋯O and N-H⋯Cl hydrogen bonding. Inter-molecular N-H⋯O hydrogen-bonding inter-actions lead to the formation of layers extending parallel to (011).

Di-µ-iodido-bis-[acet-yl(4-methyl-2,6,7-trioxa-1-phosphabicyclo-[2.2.2]octa-ne)(N-nitroso-N-oxidoaniline-κO,O')rhodium(III)].

The title compound, [Rh(2)(C(6)H(5)N(2)O(2))(2)(C(2)H(3)O)(2)I(2)(C(5)H(9)O(3)P)(2)], contains a binuclear centrosymmetric Rh(III) dimer bridged by iodide anions, with respective Rh⋯Rh and I⋯I distances of 4.1437 (5) and 3.9144 (5) Å. The Rh(III) atom is in a distorted octa-hedral RhCI(2)O(2)P coordination with considerably different Rh-I distances to the bridging iodide anions. There are no classical hydrogen-bonding inter-actions observed for this complex.

Carbon-yl(N-nitroso-N-oxido-1-naphtylamine-κO,O')(triphenyl-phosphine-κP)rhodium(I) acetone solvate.

The title compound, [Rh(C(10)H(7)N(2)O(2))(C(18)H(15)P)(CO)]·(CH(3))(2)CO, is the second structural report of a metal complex formed with the O,O'-C(10)H(7)N(2)O(2) (neocupferrate) ligand. In the crystal structure, the metal centre is surrounded by one carbonyl ligand, one triphenyl-phosphine ligand and the bidentate neocupferrate ligand, forming a distorted square-planar RhCO(2)P coordination set which is best illustrated by the small O-Rh-O bite angle of 77.74 (10)°. There are no classical hydrogen-bond inter-actions observed for this complex.