Zobrazeno 1 - 10
of 36
pro vyhledávání: '"A. N. Kitaigorodskii"'
Publikováno v:
ChemInform. 22
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 39:2277-2281
The effect of aromatic π-substrates on the rate of inversion of Fe3+ in five-coordinate high-spin iron(III) porphyrins has been investigated using PMR. It was shown that π-substrates may influence both associative and dissociative inversion channel
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 39:2282-2285
Analysis of variations in the PMR chemical shifts of viologens arising from additions of a water-soluble zinc(II) porphyrin makes it possible to carry out a qualitative determination of the structure of molecular complexes formed between the metallop
Autor:
O. A. Chamaeva, A. N. Kitaigorodskii
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 39:1591-1595
The formation of molecular complexes between Co(II), Fe(III), and Mn(III) porphyrins and π-donors in chloroform solution has been investigated using1H NMR. It was shown that their stability is controlled to a large extent by the dimensions of the π
Autor:
O. A. Chamaeva, A. N. Kitaigorodskii
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 39:895-900
The preferred orientation of a number of aromatic π-acceptors in molecular complexes with cobalt(II) etioporphyrin in chloroform solution has been established and the stability of the complexes determined. A number of structural and thermodynamic ef
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 39:900-905
Using the1H and13C NMR method, we have observed delocalization of spin density from the paramagnetic metalloporphyrins to aromatic nitro compounds in chloroform solutions. We have shown that spin transfer occurs directly from the metal atoms. The eff
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 40:418-420
Esters of orthovanadic acid with unsaturated groups were synthesized for the first time by transesterification. Vanadium-containing monomers with the monomethyl methacrylate ester of ethylene glycol (MEG) and dimethylvinylethynylcarbinol proved the m
Publikováno v:
Journal of Organometallic Chemistry. 288:341-348
An improved method for the synthesis of [AreneRuCp] + salts by means of ligand exchange at ruthenocene is described. A set of new [AreneRuCp] + X −1 was obtained. The 1 H NMR spectra of arenecyclopentadienylruthenium salts were discussed.
Publikováno v:
Magnetic Resonance in Chemistry. 24:705-708
Paramagnetic 13C NMR shifts induced by tris(acetylacetonato)chromium(III) [Cr(acac)3] and tris(acetylacetonato)iron(III) [Fe(acac)3] in various saturated hydrocarbons were determined for the first time using a special technique. The observed shifts,
Autor:
A. N. Kitaigorodskii
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 34:1388-1393
1. For a broad circle of organic compounds, interaction with Cr(acac) leads to the appearance of appreciable spin density on the carbon atoms. 2. The outer-sphere interactions responsible for transfer of spin density have a donoracceptor character. 3