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Kolekcje
Inne
Tris(2-cyanoethyl)tin(IV) bromide and tris(2-cyanoethyl)tin(IV) iodide, their structure, properties and reactions with adenosine, AMP and ATP.
Autorzy
Rok wydania
2008
Czasopismo
Numer woluminu
27
Strony
1093-1101
DOI
10.1016/j.poly.2007.12.012
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Complexes [Sn(CH2CH2CN)3I] (1) and [SnBr(CH2CH2CN)3] (2) have been obtained by the oxidation reactions of hexakis(2-cyanoethyl)ditin(III) by means of iodine and bromine. The complexes have been characterized by NMR and IR spectroscopy methods and X-ray crystallography. Both compounds consist of zigzag single-strand chains with a bridging 2-cyanoethyl ligand coordinating via the CH2 group and N atom. The tin atoms are in a distorted trigonal bipyramidal environment with bromo or iodo ligands and a nitrogen atom occupying the axial coordination sites. The Sn(1)–N(3i) distances in complexes 1 and 2 are considerably longer than the tin-equatorial ligand bonds. The molecular and electronic structures and IR spectra of [SnBr(CH2CH2CN)3] mononuclear and [SnBr(CH2CH2CN)3]2 dinuclear fragments of the complex have been studied by the DFT B3LYP method. The calculated interatomic distances for the entity containing a five-coordinate tin atom agree well with those found crystallographically. The compounds in water solutions form trigonal bipyramidal complexes containing aqua and hydroxo axial ligands. The interaction of these complexes with adenosine, 5′-adenosine monophosphate and 5′-adenosine triphosphate has been investigated.
Słowa kluczowe
Triorganotin compounds, X-ray structure, Trigonal bipyramidal tin complexes
Adres publiczny
https://doi.org/10.1016/j.poly.2007.12.012
Strona internetowa wydawcy
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