1243255-90-4Relevant academic research and scientific papers
Hypervalence at tin(IV) by transannular bonding of sulfur in an eight-membered ring: The case of dibenzostannocines [{S(C6H 4S)2}Sn]
Alvarado-Rodríguez, José G.,González-Montiel, Simplicio,Andrade-López, Noemí,Cogordan, Juan Antonio,Lima-Ortiz, Laura L.
, p. 2283 - 2290 (2010)
Treatment of Ph2SnCl2 with S(C6H 4SH)2 in benzene leaded to the formation of [{S(C 6H4S)2}SnPhCl] (1); the same reaction with 1,4-diazabicyclo-[2.2.2]-octane leaded [{S(C6H4S) 2}SnPh2] (4). The compounds [{S(C6H 4S)2}SnPhHal] (Hal = Br, 2; I, 3) have been synthesized by halogen exchange from 1 and the corresponding potassium halide. The compound [{S(C6H4S)2}SnCl2] (5) was obtained from S(C6H4SH)2 and SnCl4. The reaction of 1 with NaS2CNEt2·3H2O yielded [{S(C6H4S)2}SnPh{S2CNEt 2}] (6). X-ray structure determinations of dibenzostannocines 1-6 revealed that the tin atom acts as an acceptor atom displaying an intramolecular transannular interaction with the sulfur (thioether-like) atom. The local geometry of the Sn atom in the compounds 1-5 is described as distorted trigonal bipyramidal with a TBP character spanning from 81% to 73%. In 6 the tin atom is six-coordinate with a distorted octahedral geometry.
