Zobrazeno 1 - 8
of 8
pro vyhledávání: '"O. A. Chamaeva"'
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
Autor:
A. N. Kitaigorodskii, O. A. Chamaeva
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 38:1150-1155
1H NMR was used to show that aromatic nitrocompound (ANC) molecules are located not on the periphery of porphyrin in molecular complexes which are formed between meso-tetraphenylporphinatocobalt (II) and ANC in chloroform solutions, as was assumed ea
Autor:
O. A. Chamaeva, A. N. Kitaigorodskii
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 37:1565-1568
1. The structures and stability constants of outer-sphere adducts of Co(HBpz3)2 with aromatic nitro compounds have been determined. 2. The process of outer-sphere solvation of Co(HBpz3)2 has been shown to lie outside the framework of a simple donor-a
Autor:
O. A. Chamaeva, A. N. Kitaigorodskii
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 37:1722-1724
Tetracoordinated metalloporphyrins form both 1∶1 and 1∶2 molecular complexes with aromatic substrates in solution at room temperature.