Reactions of 1,1-Diiodo-3,4-benzocyclopentatellurane with Sulfur and Selenium Ligands: X-Ray Structure of a Dicationic Telluraheterocycle, [C₈H₈Te{S=C(NMe₂)₂}₂][BF₄]₂

摘要

1,1-Diiodo-3,4-benzocyclopentatellurane, C₈H₈TeI₂, was reacted with a series of neutral thioureas, selenoureas, and thiones (L) in tetrahydrofuran in the presence of silver tetrafluoroborate to give dicationic complexes of the type [C₈H₈Te(L)₂][BF₄]₂. These have been characterized by multinuclear NMR spectroscopy, elemental analysis, and a representative single crystal X-ray structure for the complex with LÂ = tetramethylthiourea. The structure and bonding are discussed and compared with related coordinated cyclopentatelluranes.View full textDownload full textKeywordsHeterocycle, NMR, tellurium, thiourea, X-ray structureRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/10426501003755495