نتایج جستجو برای: ttanium iii complexes

تعداد نتایج: 386425  

2013
MANISH KUMAR

A series of transition metal complexes of the ligand 5-bromo salicylaldehyde-2-furoic acid hydrazide have been prepared using Ti(III), Mn(III), V(III), Co(III), Fe(III), Ru(III) and Rh(III). The complexes have been characterized by elemental analyses, melting points, molar conductance, magnetic susceptibility measurement, electronic and infra red spectral studies. Based on these studies octahed...

Abbas Ali Samadi Mahtab Piroozmand Nasser Safari,

First row transition metal complexes of phthalocyanine are employed as catalysts for the oxidation of cyclohexene and cyclooctene using iodosylbenzene and pentafluoroiodosyl benzene. The catalysis was performed in dichloromethane: methanol:water (80:18:2) solvent mixture.  The products of the catalysis for cyclohexene are epoxycyclohexane, 2-cyclohexene-1-ol and 2-cyclohexene-1-one whereas ...

Journal: :Dalton transactions 2015
Yanqiu Yang Jun Liu Liang Yang Kun Li Huabei Zhang Shunzhong Luo Linfeng Rao

Complexation of Am(III), Nd(III), and Eu(III) with a new heterocyclic nitrogen-donor ligand, 2,9-di(quinazolin-2-yl)-1,10-phenanthroline (denoted as BQPhen in this paper), was studied by thermodynamic measurements and theoretical computations. The stability constants of two successive complexes in dimethylformamide, ML(3+) and ML2(3+) where M stands for Nd, Eu, or Am while L stands for the BQPh...

An anti-tumor compound as N3-{phenyl [(4-pyridylcarbonyl) amino] methyl} weresynthesized and identified (NPPA). Fe (III), Co(II) and Pd(II) metal complexes of this ligand preparedby reaction of chloride salt of Fe (III), Co(II) and Pd(II) with NPPA in dry acetonitrile. Identification andCharacterization of the ligand was performed by FT-IR, 1H-NMR spectroscopy and elemental an...

Journal: :Acta Chemica Scandinavica 1973

2011
Irena Kostova Petar Grigorov Stefan Balkansky Tsvetanka Stefanova

New complexes of coumarin-3-carboxylic acid (HCCA) with holmium [Ho(III)] and erbium [Er(III)] were synthesized and their structures and spectral properties were investigated by elemental analysis, IR, Raman and NMR measurements. According to the experimental data of the complexes, their formulae and geometries have been suggested. Vibrational frequencies, IR intensities and Raman activities as...

Journal: :Bulletin of the Chemical Society of Japan 1969

Journal: :Bulletin of the Chemical Society of Japan 1990

Journal: :Nippon kagaku zassi 1968

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