Reaction of Two Differently Functionalized Oxiranes with Nickel Perchlorate: A Modular Entry to Highly Substituted 1,3-Dioxolanes

2013 ◽  
Vol 2013 (22) ◽  
pp. 4748-4751 ◽  
Author(s):  
Zuliang Chen ◽  
Yuanjing Xiao ◽  
Junliang Zhang
Keyword(s):  
Nickel Perchlorate

scholarly journals Complexes of Pyridine-2-carbaldehyde S-Methylthiosemicarbazone with nickel(II) and copper(II)

1974 ◽  
Vol 27 (5) ◽  
pp. 1133 ◽  
Author(s):  
MA Malik ◽  
DJ Phillips
Keyword(s):  
Electronic Spectra ◽  
Magnetic Moments ◽  
Tridentate Ligands ◽  
Pale Yellow ◽  
Nickel Perchlorate

New complexes of pyridine-2-carbaldehyde S-methylthiosemicarbazone (pmts) with nickel(11) and copper(11) are reported, together with magnetic moments, infrared and electronic spectra. The pale yellow bis-ligand complexes with nickel perchlorate, tetrafluoroborate and nitrate have the ionic structures [Ni(pmts)2] X2, with six-coordinate nickel(11) and tridentate ligands. Thiocyanate co-ordination and bidentate pmts appear to be present in the six-coordinate orange-brown complex Ni(pmts)2(NCs)2. The complexes, Ni(pmts)X2 (X = Cl, Br), are halogen-bridged and six-coordinate. The complexes Cu(pmts)X2 (X = Cl, Br, NO3) do not appear to be five coordinate, and may be six coordinate.

Nickel Perchlorate

2010 ◽  
Author(s):  
Tse-Lok Ho ◽  
Mary Fieser ◽  
Louis Fieser
Keyword(s):  
Nickel Perchlorate

X-Ray crystal structure of chlorobis (ethylenediamine)nickel perchlorate, Ni(en)2ClClO4

1972 ◽  
Vol 12 (5) ◽  
pp. 775-779
Author(s):  
L. Kh. Minacheva ◽  
A. S. Antsyshkina ◽  
M. A. Porai-Koshits
Keyword(s):  
Crystal Structure ◽  
X Ray ◽  
Nickel Perchlorate

scholarly journals Coordination Chemisty of Phosphoguanidines, I

1974 ◽  
Vol 29 (7-8) ◽  
pp. 542-545 ◽  
Author(s):  
K. Nag ◽  
S. N. Bose
Keyword(s):  
Nitrogen Atom ◽  
Coordination Compounds ◽  
Nickel Sulfate ◽  
Tridentate Ligand ◽  
Octahedral Complex ◽  
Chemical Analyses ◽  
Sulfate Ion ◽  
Imino Nitrogen ◽  
Square Planar ◽  
Nickel Perchlorate

Coordination compounds of some nickel (II) salts derived from 1,3-bis(di-n-propyl-phosphinyl)guanidine (DPPG) have been synthesized and characterized from their chemical analyses, infrared spectra, electronic spectra, conductance and magnetic moment measurements. With nickel perchlorate, an octahedral complex of the type [Ni(DPPG)2](ClO4)2 has been prepared, while with corresponding chloride and iodide square planar compounds of the type [Ni(DPPG)X]X have been obtained. With nickel sulfate a 1:1 diamagnetic complex is formed in which sulfate ion is unidentately bound. In all the complexes DPPG acts as a tridentate ligand and bonding takes place from two P = O groups and the imino nitrogen atom. The solvation behavior of the complexes has also been studied.

Kinetics of the Anation Reaction of Nickel(II) and 1,10-Phenanthroline in Ethanol

1972 ◽  
Vol 50 (23) ◽  
pp. 3861-3865 ◽  
Author(s):  
M. L. Sanduja ◽  
W. MacF. Smith
Keyword(s):  
Rate Constant ◽  
Sodium Perchlorate ◽  
Order Rate Constant ◽  
Stopped Flow ◽  
Tetrabutyl Ammonium ◽  
Kinetics Of Formation ◽  
Kinetics Of ◽  
Nickel Perchlorate ◽  
Anation Reaction ◽  
Made In

The kinetics of formation of the monophenanthroline complex of nickel(II) in ethanol has been studied using stopped-flow methods over the temperature range 7 to 35 °C. Tetrabutyl ammonium perchlorale in concentration 0.044 M does not affect the rate appreciably, sodium perchlorate at the same concentration depresses the rate significantly. Most measurements were made in the absence of electrolytes other than nickel perchlorate and a trace of perchloric acid. The second order rate constant is not significantly dependent on the nickel(II) concentration over a four-fold change in value indicating that the concentration of encounter pairs is small relative to the concentration of the free reactants. The rate constant at 25 °C (31 × 103 M−1 s−1)is consistent with a dissociative interchange mechanism and the rate constant for ethanol exchange on nickel. However, the value of ΔH≠ for the overall reaction (15.9 ± 1.0 kcal mol−1) is about 5 kcal mol−1 higher than that reported for ethanol exchange.

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