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All four title compounds are shown to exist in the equilibrium mixture of two conformers: major <jats:italic>planar s\u2010cis<\/jats:italic> and minor <jats:italic>orthogonal<\/jats:italic> ones, while <jats:sup>31<\/jats:sup>P\u2013<jats:sup>1<\/jats:sup> H spin\u2013spin coupling constants under study are found to demonstrate marked stereochemical dependences with respect to the geometry of the coupling pathways, and to the internal rotation of the vinyl group around the P(X)\u2010C bonds (X = LP, O, S and Se), opening a new guide in the conformational studies of unsaturated phosphines and phosphine chalcogenides. Copyright \u00a9 2009 John Wiley &amp; Sons, Ltd.<\/jats:p>","DOI":"10.1002\/mrc.2386","type":"journal-article","created":{"date-parts":[[2009,1,6]],"date-time":"2009-01-06T08:11:02Z","timestamp":1231229462000},"page":"288-299","source":"Crossref","is-referenced-by-count":21,"title":["Conformational analysis and stereochemical dependences of <sup>31<\/sup>P\u2013<sup>1<\/sup>H spin\u2013spin coupling constants of bis(2\u2010phenethyl)vinylphosphine and related phosphine chalcogenides"],"prefix":"10.1002","volume":"47","author":[{"given":"Sergey V.","family":"Fedorov","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Leonid B.","family":"Krivdin","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yury Yu.","family":"Rusakov","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Igor A.","family":"Ushakov","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Natalia V.","family":"Istomina","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Natalia A.","family":"Belogorlova","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Svetlana F.","family":"Malysheva","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nina K.","family":"Gusarova","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Boris A.","family":"Trofimov","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2009,1,6]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1055\/s-2000-6422"},{"key":"e_1_2_1_2_3","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-328X(01)00678-7"},{"key":"e_1_2_1_2_4","doi-asserted-by":"publisher","DOI":"10.1016\/j.tetasy.2004.05.001"},{"key":"e_1_2_1_2_5","doi-asserted-by":"publisher","DOI":"10.1016\/j.tet.2005.03.012"},{"key":"e_1_2_1_3_2","doi-asserted-by":"publisher","DOI":"10.1002\/1099-0690(200009)2000:18<3205::AID-EJOC3205>3.0.CO;2-D"},{"key":"e_1_2_1_3_3","doi-asserted-by":"publisher","DOI":"10.1039\/b208384a"},{"key":"e_1_2_1_3_4","doi-asserted-by":"publisher","DOI":"10.2174\/1570178043488356"},{"key":"e_1_2_1_3_5","doi-asserted-by":"publisher","DOI":"10.1021\/jo051582b"},{"key":"e_1_2_1_4_2","doi-asserted-by":"publisher","DOI":"10.1021\/ic0109041"},{"key":"e_1_2_1_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.tet.2003.09.066"},{"key":"e_1_2_1_5_3","doi-asserted-by":"publisher","DOI":"10.1021\/cr030026j"},{"key":"e_1_2_1_5_4","doi-asserted-by":"publisher","DOI":"10.1021\/jo060321e"},{"key":"e_1_2_1_5_5","doi-asserted-by":"publisher","DOI":"10.1021\/om060802o"},{"key":"e_1_2_1_6_2","doi-asserted-by":"publisher","DOI":"10.1002\/pi.1663"},{"key":"e_1_2_1_6_3","doi-asserted-by":"publisher","DOI":"10.1021\/es0482177"},{"key":"e_1_2_1_6_4","doi-asserted-by":"publisher","DOI":"10.1002\/app.22325"},{"key":"e_1_2_1_6_5","doi-asserted-by":"publisher","DOI":"10.1002\/app.23580"},{"key":"e_1_2_1_6_6","doi-asserted-by":"publisher","DOI":"10.1134\/S1070427208020286"},{"key":"e_1_2_1_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.hydromet.2004.03.001"},{"key":"e_1_2_1_7_3","doi-asserted-by":"publisher","DOI":"10.1016\/j.jorganchem.2004.11.037"},{"key":"e_1_2_1_7_4","doi-asserted-by":"publisher","DOI":"10.1007\/s10967-005-0843-1"},{"key":"e_1_2_1_8_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11172-005-0331-3"},{"key":"e_1_2_1_8_3","doi-asserted-by":"publisher","DOI":"10.1021\/ja0656696"},{"key":"e_1_2_1_9_2","first-page":"11","volume":"36","author":"Chernysheva N. 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