Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Reactions of K2[Fe3Q(CO)9] (Q = Se, Te) with AsI3 : Synthesis and Structures of the First {Fe3TeAs} Clusters with Capping µ3-AsI and Bridging µ6,κ3:κ3-As2 Ligands. / Ilyin, Igor Yu; Konchenko, Sergey N.; Pushkarevsky, Nikolay A.
в: Journal of Cluster Science, Том 26, № 1, 01.01.2015, стр. 257-268.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - Reactions of K2[Fe3Q(CO)9] (Q = Se, Te) with AsI3
T2 - Synthesis and Structures of the First {Fe3TeAs} Clusters with Capping µ3-AsI and Bridging µ6,κ3:κ3-As2 Ligands
AU - Ilyin, Igor Yu
AU - Konchenko, Sergey N.
AU - Pushkarevsky, Nikolay A.
PY - 2015/1/1
Y1 - 2015/1/1
N2 - Reactions of cluster salts K2[Fe3Q(CO)9] (Q = Se, Te) with AsI3 in CH2Cl2 proceed differently depending on the chalcogen atom and the reaction conditions. For Te, the product of addition of μ3-AsI vertex to the initial cluster, [Fe3(CO)9(μ3-Te)(μ3-AsI)] (2b) is the main component of the solution. By action of traces of water, such as wet silica gel, 2b is converted to a dimeric cluster [{Fe3(CO)9(μ3-Te)}2(μ6,κ3:κ3-As2)] (5), whose molecules contain two identical square-pyramidal cores joined by diarsane moiety. For Se, the product 2a, analogous to 2b, was only found on the basis of mass-spectra, as main component of the reaction solution, but could not be separated because of its instability and similarity of its properties to those of [Fe3(CO)9Se2], a by-product. Two other products, [Fe3(CO)9(μ3-Se)(µ4,κ3:κ2-AsSe)Fe2(CO)6(μ-I)] (3) and K[{Fe3(CO)9(μ3-Se)(μ4-As)}2Fe(CO)3I] (4) were only found as little amount of crystals. The molecule of 3 consists of the pyramidal {Fe3SeAs} core linked by the As–Se bond to a {Fe2SeI} fragment. The cluster anion in 4 consists of two {Fe3SeAs} cores joined via the {Fe(CO)3I} unit. The products 3 and 4 presumably originate from the dissociation of the initial cluster core and their formation correlates with lower stability of Se-containing cluster 2a as compared to 2b.
AB - Reactions of cluster salts K2[Fe3Q(CO)9] (Q = Se, Te) with AsI3 in CH2Cl2 proceed differently depending on the chalcogen atom and the reaction conditions. For Te, the product of addition of μ3-AsI vertex to the initial cluster, [Fe3(CO)9(μ3-Te)(μ3-AsI)] (2b) is the main component of the solution. By action of traces of water, such as wet silica gel, 2b is converted to a dimeric cluster [{Fe3(CO)9(μ3-Te)}2(μ6,κ3:κ3-As2)] (5), whose molecules contain two identical square-pyramidal cores joined by diarsane moiety. For Se, the product 2a, analogous to 2b, was only found on the basis of mass-spectra, as main component of the reaction solution, but could not be separated because of its instability and similarity of its properties to those of [Fe3(CO)9Se2], a by-product. Two other products, [Fe3(CO)9(μ3-Se)(µ4,κ3:κ2-AsSe)Fe2(CO)6(μ-I)] (3) and K[{Fe3(CO)9(μ3-Se)(μ4-As)}2Fe(CO)3I] (4) were only found as little amount of crystals. The molecule of 3 consists of the pyramidal {Fe3SeAs} core linked by the As–Se bond to a {Fe2SeI} fragment. The cluster anion in 4 consists of two {Fe3SeAs} cores joined via the {Fe(CO)3I} unit. The products 3 and 4 presumably originate from the dissociation of the initial cluster core and their formation correlates with lower stability of Se-containing cluster 2a as compared to 2b.
KW - Arsenic
KW - Carbonyl clusters
KW - Iron
KW - Reactivity
KW - Selenium
KW - Tellurium
UR - http://www.scopus.com/inward/record.url?scp=85028131462&partnerID=8YFLogxK
U2 - 10.1007/s10876-014-0775-4
DO - 10.1007/s10876-014-0775-4
M3 - Article
AN - SCOPUS:85028131462
VL - 26
SP - 257
EP - 268
JO - Journal of Cluster Science
JF - Journal of Cluster Science
SN - 1040-7278
IS - 1
ER -
ID: 25414654