Results 311 to 320 of about 95,990 (357)

Some tetranuclear nickel(II), cobalt(II), and mixed cobalt(II)/cobalt(III) complexes of a binucleating ligand

Journal of the Chemical Society, Chemical Communications, 1973
Nickel(II), cobalt(II), and mixed cobalt(II)/cobalt(II) complexes of the binucleating ligand 4-hydroxy-bis-3,5-[N-(2′-hydroxypheyl)formimidoyl]toluene, RH3, contain the tetranuclear core [RM2(OH)]2.
Bernard F. Hoskins, Richard Robson, David Vince   +2 more
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Dipyridylamine complexes of cobalt(II)

Journal of the Chemical Society A: Inorganic, Physical, Theoretical, 1966
The preparation is described of some complexes of cobalt(II) salts with di-2-pyridylamine (= L). Magnetic and electronic spectral studies show that CoL3(ClO4)2, CoL3I2, and CoL2(NCS)2 are essentially octahedral, whilst CoLX2(X = Cl, Br, I) have distorted tetrahedral structures.
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Pseudotetrahedral cobalt(II) and nickel(II) zwitterion complexes

Journal of the Chemical Society A: Inorganic, Physical, Theoretical, 1969
The preparation and properties of cobalt(II) and nickel(II) complexes of the positively charged ligands, 2-(diphenylphosphinomethyl)-6-methylpyridinium ion (PN′H+) and 2-(β-diphenylphosphinoethyl)-6-methylpyridinium ion (PN″H+), are described. Magnetic measurements and i.r.
W. V. Dahlhoff, T. R. Dick, S. M. Nelson
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New planar cobalt(II) and nickel(II) complexes

Inorganica Chimica Acta, 1972
Abstract Some planar complexes of cobalt(II) and nickel(II) derived from triazene 1-oxides are reported in this paper. The cobalt(II) complexes are very stable and are shown to be monomolecular in solution. Their magnetic moments lie in the range 2.08–2.19 BM. They show electronic spectra with many features in the range 4500–30,000 cm −1 .
P.S. Zacharias, A. Chakravorty
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Cobalt(II) and nickel(II) complexes of carbamylmethylenephosphonates

Journal of Inorganic and Nuclear Chemistry, 1974
Abstract The coordinating ability of the organic compounds with the basic skeleton has been investigated and their completely chelated cobalt(II) and nickel(II) complexes have been isolated. These complexes have been characterized by means of their electronic and i.r.
B.D. Catsikis, M.L. Good
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Copper(II) and Cobalt(II) Complexes of Arylazopyrazolones

Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry, 1993
Abstract Complexes of Cu(II) with five arylazopyrazolones derived from isoniazid and substituted phenylazoethyl-acetoacetates and two Co(II) complexes with N1-isonicoti-noyl-3-methy1- 4-phenylazopyrazolone have been synthe-sised. The arylazopyrazolones act as neutral bidentate ligands, bonding to the metal through the azo nitrogen and hydroxyl oxygen ...
Joshi Kuncheria, K. K. Aravindakshan
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Some cobalt(II) complexes of iminophosphoranes

Journal of Inorganic and Nuclear Chemistry, 1979
Abstract Cobalt(II) chloride and bromide complexes of seven arylimino-triphenylphosphoranes were prepared. Their spectral and magnetic properties were investigated. The iminophosphoranes were found to be weak ligands with crystal field splitting energies (Δ) in the 4605-3630 cm −1 range for the chloride, and 4405-3406 cm −1 for the bromide ...
Elizabeth M. Briggs, Geoffrey W. Brown, Josef Jiricny   +2 more
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Cobalt(II) halide complexes with ethyleneselenourea

Journal of Inorganic and Nuclear Chemistry, 1979
Abstract The complexes obtained from ethyleneselenourea and cobalt(II) halides have been prepared and characterized. They have formula CoL 2 X 2 ( X = Cl, Br, I), tetrahedral stereochemistry and they are Se-bonded to the cobalt(II). They are comparatively studied with the previously reported complexes of cobalt(II) with ethylenethiourea, by IR and ...
Francesco A. Devillanova, Gaetano Verani
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Cobalt(II) complexes with trimethylphosphine selenide

Journal of the Chemical Society A: Inorganic, Physical, Theoretical, 1969
Spectrochemical and magnetic data are presented for cobalt(II) complexes of trimethylphosphine selenide, CoL4(ClO4)2 and CoL2X2(X = Cl, Br, or I), and comparisons made with the trimethylphosphine oxide and sulphide analogues. The Δ value for the [CoL4] selenide is similar to that for the corresponding sulphide, but there is a slight decrease in β ...
A. M. Brodie, G. A. Rodley, C. J. Wilkins   +2 more
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Paramagnetic hydrido-complexes of cobalt(II)

Journal of the Chemical Society, Dalton Transactions, 1973
The preparation and characterisation of some hydrido-complexes of cobalt(II) of formula [CoHL4]+X–[L = P(OEt)2Ph, P(OMe)2Ph, or P(OPh)3; X = PF6 or BF4] are described.
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