Novel oxidation of pyridoxal in ternary metal complexes. An X-ray study of the products

1986 ◽  
pp. 4 ◽  
Author(s):  
S. P. Sudhakara Rao ◽  
Hattikudur Manohar ◽  
Katsuyuki Aoki ◽  
Hiroshi Yamazaki ◽  
Robert Bau
Keyword(s):  
Metal Complexes ◽  
X Ray ◽  
Ternary Metal ◽  
Ternary Metal Complexes

Zur Koordination von Thiocyanat in ternären Metallkomplexen Die Kristallstruktur von Ba2Cd(SCN)6 • 7 H2O / On the Coordination of Thiocyanate in Ternary Metal Complexes The Crystal Structure of Ba2Cd(SCN)6 • 7 H2O

1986 ◽  
Vol 41 (4) ◽  
pp. 439-443 ◽  
Author(s):  
Klaus Brodersen ◽  
Karl Böhm
Keyword(s):  
Crystal Structure ◽  
Aqueous Solutions ◽  
Metal Complexes ◽  
Title Compound ◽  
Molar Ratio ◽  
Space Group ◽  
X Ray ◽  
Ternary Metal ◽  
Ray Methods ◽  
Ternary Metal Complexes

The title compound was prepared by reaction of aqueous solutions of Ba(SCN)2 • 3 H2O and CdSO4 • 8/3 H2O in the molar ratio of 3:1. The crystal structure was solved by X-ray methods (Mr = 861.61, space group P 21/c, Z = 4, a = 943.6(3) pm, b = 1469.7(6) pm, c = 1827.1(6) pm, β = 109.02(7), V = 2395.4 106 pm3, λ (AgKa) = 55.83 pm, dc = 2.38 gcm-3, μ(AgKa) = 22.4 cm-1, F(000) = 1591.9, T = 298 K, final R = 0.035 for 1350 independent reflexions). The structure consists of two crystallographically independent, distorted Cd(SCN)6 octahedra. Both crystallographically different Ba2+ cations are surrounded by 4 oxygen atoms of water and 5 nitrogen atoms of SCN, forming chains in the direction o f the b-axis

PREPARATION AND CHARACTERIZATION OF SOME BINARY AND TERNARY METAL COMPLEXES OF IMIDAZOLE AND AMINO ACIDS

1966 ◽  
Vol 44 (14) ◽  
pp. 1637-1641 ◽  
Author(s):  
G. N. Rao ◽  
N. C. Li
Keyword(s):  
Aqueous Solution ◽  
Amino Acid ◽  
Metal Complexes ◽  
Proton Magnetic Resonance ◽  
Spectral Studies ◽  
Visible Spectra ◽  
Infrared Spectral ◽  
Ternary Metal ◽  
Ternary Metal Complexes

Five new ternary metal complexes containing imidazole and glycylglycine or amino acid have been prepared and characterized by proton magnetic resonance and infrared spectral studies. Seven new binary metal complexes have also been prepared and studied. The isolation of Cd(imidazole)6Cl2•H2O and Ni(imidazole)6-Cl2•4H2O provides evidence that the coordination number of these metal ions to imidazole in the solid state is six. The visible spectra of the Ni(II) complexes of amino acid and imidazole show that all these are octahedral in aqueous solution.

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