Synthesis, characterization and crystal structures of organolead dithiolate compounds displaying transannular interactions D center dot center dot center dot Pb (D = O, S)

• Published in: Polyhedron Vol. 28; no. 3; pp. 467 - 472
• Main Authors: Gonzalez-Montiel, Simplicio, Flores-Chavez, Benito, Alvarado-Rodriguez, Jose G., Andrade-Lopez, Noemi, Antonio Cogordan, Juan
• Format: Journal Article
• Language: English
• Published: OXFORD Elsevier 24.02.2009
• Subjects: Chemistry; Chemistry, Inorganic & Nuclear; Crystallography; Physical Sciences; Science & Technology; Non-bonded interactions; DIBENZOSTIBOCINES; COORDINATION; SULFUR; OXYGEN; LIGANDS; DIPHENYLLEAD(IV) COMPLEXES; MOLECULAR-STRUCTURES; TIN; Organolead compounds; Dithioligands; Structure elucidation; Hypercoordinated compounds; LEAD-CONTAINING HETEROCYCLES; PENTACOORDINATION
• ISSN: 0277-5387
• DOI: 10.1016/j.poly.2008.11.012

Treatment of Ph2PbCl2 with O(C6H4SH)(2) (1a), S(C6H4SH)(2) (2a) and S(C6H3SH)(2)O (3a) afforded the stable organolead compounds [{O(C6H4S)(2)}PbPh2] (1b), [{S(C6H4S)(2)}PbPh2] (2b) and [{S(C6H3S)(2)O}PbPh2] (3b). X-ray structure determinations of dithiolate-diphenyl lead compounds 1b-3b revealed that the trichalcogenated ligands are tridentate in 1b and 2b and bidentate in 3b The lead atom acts as an acceptor atom exhibiting weak intramolecular transannular interactions with the donor D atom with tetrahedral, distortions of 48% for 1b, 51% for 2b and 45% for 3b. The local geometry at the lead atom is described as monocapped tetrahedral. The crystal packing of title compounds is stabilized by several non-bonded interactions. (C) 2008 Elsevier Ltd. All rights reserved.