Antitumour copper(II) salicylaldehyde benzoylhydrazone (H2sb) complexes: physicochemical properties and the single-crystal X-ray structures of [{Cu(H2sb)(CCl3CO2)2}2] and [{Cu(Hsb) (ClO4) (C2H5OH)}2] and the related salicylaldehyde acetylhydrazone (H2sa) complex, [Cu(Hsa)Cl(H2O)]·h2O

Copper(II) complexes of the antitumour-related ligand salicylaldehyde acetylhydrazone (H2L) and the single-crystal X-ray structures of [{Cu(HL)H2O}2] · 2(NO3) and [{Cu(HL) (pyridine) (NO3)}2]

Polynuclear diorganotin(IV) complexes with arylhydroxamates: Syntheses, structures and in vitro cytotoxic activities.

Publisher Summary Polynuclear complexes with hydroxide (or oxide) as bridging ligands constitute an important class of complexes. They are formed by hydrolysis of mononuclear aqua complexes of most metal ions and, therefore, constitute an important aspect of the hydrolytic chemistry of metal ions. They display a chemistry which is interesting and is also relevant in relation to applied chemistry and to biochemistry. This chapter reviews the chemistry of hydroxo-bridged chromium(III), cobalt(III) complexes, and includes studies of the related rhodium(III) and iridium(III)systems. The review focuses the chemical properties of these complexes, and special emphasis has been made on reactions that involve the cleavage or formation of a hydroxo bridge. Reactions of bridging groups other than hydroxide and reactions of nonbridging ligands are also discussed in the chapter. A large number of X-ray crystal-structure determinations have been made during the past two decades. The hydroxo-bridged chromium(III) oligomers constitute a very interesting class of complexes from a spectroscopic and magnetochemical point of view. The most important methods for obtaining structural information about solutions are probably potentiometric pH measurements and visible/ultraviolet spectroscopy, but many other techniques have been applied, including bridge-cleavage experiments, magnetic measurements, and electron spin resonance (ESR) spectroscopy.

Hydroxo-Bridged Complexes of Chromium (III), Cobalt (III), Rhodium (III), and Iridium (III)

Di- and tri-organotin(IV) complexes with 2-hydroxy-1-naphthaldehyde 5-chloro-2-hydroxybenzoylhydrazone: Synthesis, characterization and in vitro antitumor activities

Dimeric pentacoordinate trivalent iron complexes of benzoyl hydrazones

Dimeric 5‐coordinate oxovanadium(iv) complexes of tridentate benzoyl hydrazones

The five- and six-coordinate dimeric manganese(III) and cobalt(III) complexes derived from benzhydrazide and salicylaldehyde(BSH), 0-hydroxyacetophenone(BAH), o-hydroxypropiophenone(BPH), o-hydroxybutyrophenone (BBH) and 2-hydroxy-1-naphthaldehyde(BNH) having the general formulae [Mn(L)X]2 and [Co(L)(OH)H2O]2 (X = Cl, Br or CH3 COO) are described. These complexes have been characterised by elemental analyses and by conductance, molecular weight, magnetic, electronic and infrared spectral measurements. The complexes of Mn(III) involve phenolic oxygen, while in Co(III) complexes hydroxyl groups are present as bridges between metal atoms as revealed by i.r. spectra. Each unit of dimeric Mn(III) complexes possesses distorted square-pyramidal shape and anions are present on the axial position. The ν(Mn-X) values are consistent with penta-coordinate stereochemistry. These complexes have subnormal magnetic moments (3.40–3.52 BM) explained in terms of antiferromagnetic exchange coupling between two adjac...

Five- and six-coordinate complexes of trivalent manganese and cobalt with benzoyl hydrazones

Electronic spectral data vis-a-vis nephelauxetic effect-calculation and accuracy of the interelectronic repulsion parameter in some vanadium(II), chromium(III), cobalt(II) and nickel(II) complexes of amino ligands—V

Four- and six-coordinate Zn(II), Cd(II) and Hg(II) complexes of terdentate benzoyl hydrazones

S.K. Dua

Papers

Dimeric pentacoordinate trivalent iron complexes of benzoyl hydrazones

Dimeric 5‐coordinate oxovanadium(iv) complexes of tridentate benzoyl hydrazones

Five- and six-coordinate complexes of trivalent manganese and cobalt with benzoyl hydrazones

Electronic spectral data vis-a-vis nephelauxetic effect-calculation and accuracy of the interelectronic repulsion parameter in some vanadium(II), chromium(III), cobalt(II) and nickel(II) complexes of amino ligands—V

Four- and six-coordinate Zn(II), Cd(II) and Hg(II) complexes of terdentate benzoyl hydrazones