In the crystal structure of the title compound, [VO(C(7)H(6)ClN(2)O)(C(10)H(7)ClN(2)O(3))], the V(V) atom is N,O-chelated by the chloro-benzoyl-hydrazidate anion and O,N,O'-chelated by the (chloro-benzoyl-hydrazono)propionate dianion. The distorted octa-hedral trans-N(2)O(4) coordination geometry is completed by the vanadyl O atom. In the crystal, mol-ecules are linked by N-H⋯O hydrogen bonds i...

The Zn(II) atom in the title compound, [Zn(C(8)H(7)N(3)O(2)S)(C(12)H(8)N(2))]·2C(2)H(6)OS·H(2)O, is N,N'-chelated by the N-heterocycle and N,O,S-chelated by the deprotonated Schiff base in a distorted square-pyramidal enviroment. Hydrogen bonds link the mononuclear mol-ecule, the water and the dimethyl sulfoxide (DMSO) mol-ecules into a linear chain motif. One DMSO mol-ecule is disordered over ...

A novel chelated ruthenium-based metathesis catalyst bearing an N-2,6-diisopropylphenyl group is reported and displays near-perfect selectivity for the Z-olefin (>95%), as well as unparalleled TONs of up to 7400, in a variety of homodimerization and industrially relevant metathesis reactions. This derivative and other new catalytically active species were synthesized using an improved method em...

The Mn(II) atom in the two independent ion-pairs of the title salt, [Mn(C(2)F(3)O(2))(C(18)H(12)N(6))(H(2)O)(2)]C(2)F(3)O(2), is N,N',N''-chelated by the neutral N-heterocycle and O,O'-chelated by the carboxyl-ate ion, the five atoms involved in chelation comprising a penta-gon around it. The apical sites of the trans-penta-gonal bipyramidal coordination geometry are occupied by two water mol-e...

The V(V) atom in the title compound, [V(C(7)H(6)ClN(2)O)(C(16)H(11)ClN(2)O(3))O]·CH(3)OH, is N,O-chelated by the benzoyl-hydrazidate anion and O,N,O'-chelated by the (benzoyl-hydrazinyl-idene)propionate dianion. The distorted octa-hedral trans-N(2)O(4) coordination geometry is completed by the vanadyl O atom. The mononuclear and solvent mol-ecules are linked by N-H⋯O and O-H⋯O hydrogen bonds ab...

The Zn(II) atom in the title compound, [Zn(C(14)H(11)N(3)O(2)S)(C(12)H(8)N(2))]·0.5C(10)H(8)N(2), is N,N'-chelated by the N-heterocycle and N,O,S-chelated by the deprotonated Schiff base in a square-pyramidal environment. The hydr-oxy group of the Schiff base is a hydrogen-bond donor to 4,4'-bipyridine, which is located about a center of inversion, resulting in the formation of a supra-molecula...

The water-coordinated neodymium(III) atom in the centrosymmetric title compound, [Nd(2)(C(5)H(2)N(2)O(4))(C(5)H(3)N(2)O(4))(4)(C(12)H(8)N(2))(2)(H(2)O)(2)]·6H(2)O is chelated by a 1,10-phenanthroline heterocycle and two 2,4-dihydroxy-pyrimidine-5-carboxyl-ate dianions. Two tris-chelated water-coordinated units are bridged by a 2,4-dihydroxy-pyrimidine-5-carboxyl-ate dianion, which is disordered...

In this new method for simultaneous separation and quantification of free and metal-chelated porphyrins in blood, the porphyrins are extracted from blood samples with a mixture of diisopropylamine:water:methanol (25:100:900, by vol) and separated by HPLC elution. The data are collected in three-dimensional form with a microcomputer. This method permits a high recovery of protoporphyrin (PP) and...