Cobalt(II) Mercury Tetrathiocyanate Complexes with Lewis Bases

Cation affinity numbers of Lewis bases

Using selected theoretical methods the affinity of a large range of Lewis bases towards model cations has been quantified. The range of model cations includes the methyl cation as the smallest carbon-centered electrophile, the benzhydryl and trityl cations as models for electrophilic substrates encountered in Lewis base-catalyzed synthetic procedures, and the acetyl cation as a substrate model ...

Electrochemical and Spectroscopic Studies of Interactions of Mn(III) Complexes with Nucleic Bases and Nucleosides

The complexes of Mn(OAc)3 and/or Mn(acac)3 with nucleic bases and nucleosides (adenine, guanine, xanthine, adenosine and guanosine) have been synthesized in nonaqueous solution. Polarographic and spectroscopic (IR and Visible) methods have been used to establish the active site(s) on the imidazole and pyrimidine rings in the nucleic bases and nucleosides for the intera...

Synthesis and Characterization of New Mercury (II) Complexes with Bidentate Chelating Schiff Base Iminopyridine Ligand

First, Schiff base iminopyridine ligands has been prepared by the condensation between primaryamines, different substituted anilines and active carbonyl group of pyridine carboxaldehyde, thenthe complexes [diiodo (3-ethylphenyl) pyridine-2-yl methylene amine] mercury(II), complex a,[dibromo (2,5-dimethylphenyl) pyridine-2-yl methylene amine] mercury(II) complex b, and[dinitrato bis-(2,6-dimethy...

Supramolecular adducts based on weak interactions between the trimeric Lewis acid complex (perfluoro-ortho-phenylene)mercury and polypnictogen complexes.

Reactions of the trinuclear Lewis acid perfluoro-ortho-phenylene)mercury [(o-HgC6F4)3] (1) with the polypnictogen complex [CpMo(CO)2(η(3)-P3)] (2) containing a cyclo-P3 ligand and the series of E2 complexes [{CpMo(CO)2}2(μ,η(2):η(2)-E2)] (E = P(3a), As(3b), Sb(3c), Bi(3d)) are reported. In all cases, the reaction products show very weak interactions between the En ligand complexes and the Lewis...

Mercury(II) Complexes of Imidazole and Histidine