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When the trimethyl derivatives of aluminium, gallium and indium react with glyoximato metallates, (R2C2N2(O)OH)2MetII (R = H, CH3; MetII = Ni, Pd, Pt, Cu), in a molar ratio, 2 mol of methane are evolved and monomeric bis(dimethylmetal(III)glyoximato)metallates(II) (metal(III) = Al, Ga, In) are formed in high yields. The vibrational and NMR spectra of the new complexes were measured and were partly resolved. The X-ray structure determinations of two of these compounds show non-planar structures of approximate C2h and C2 symmetry, respectively, with weak metal(III)?metal(II) π-interactions. 相似文献
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The total syntheses of (±)α- and β-dihydrocleavamines, (±)-16-methoxycarbonyldihydro-cleavamine, (±)-coronaridine, (±)-dihydrocatharanthine, (±)-ibogamine, (±)-epi-ibogamine and (±)-catharanthine are described. 相似文献
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J. V. Hanna S. W. Ng 《Acta Crystallographica. Section C, Structural Chemistry》1999,55(4):IUC9900029-IUC9900029
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Metal Complexes of Biologically Important Ligands. CIII. [1] Palladium(II), Platinum(II), Ruthenium(II), Rhodium(III), and Iridium(III) Complexes of Desoxyfructosazine The reactions of the pyrazine derivative desoxyfructosazin(pz) with K2PtCl4 and with the chlorobridged [M(PR3)Cl2]2 (M = Pd, Pt), [(η5-C5Me5)MCl2]2 and [(η6-p-Cymol)RuCl2]2 give the watersoluble complexes cis-Cl2Pt(pz)2, (R3P)(Cl)M(pz)M(Cl)(PR3) (M = Pd, Pt), (η5-C5Me5)(Cl)2M(pz)M(Cl)2(η5-C5Me5) (M = Rh, Ir), (η6-p-Cymol)(Cl2)Ru(pz)Ru(Cl)2(η6-p-Cymol). 相似文献