PATTERNS OF NUCLEAR-SPIN COUPLING IN SPECIES WITH PLATINUM-TIN BONDS - A COMPARISON OF PHOSPHORUS AND TIN
A range of heteronuclear magnetic multiple-resonance experiments involving 1H, 31P, 119Sn, 195Pt, and 207Pb was used to determine the absolute signs of nuclear spin-coupling constants for platinum(II) complexes with PR3 [R = alkyl, aryl, or alkoxy] and SnCl3-, SnPh3-, or PbPh3- as ligands. The signs...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
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1990
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| _version_ | 1797053479100874752 |
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| author | Mcfarlane, W Rees, N |
| author_facet | Mcfarlane, W Rees, N |
| author_sort | Mcfarlane, W |
| collection | OXFORD |
| description | A range of heteronuclear magnetic multiple-resonance experiments involving 1H, 31P, 119Sn, 195Pt, and 207Pb was used to determine the absolute signs of nuclear spin-coupling constants for platinum(II) complexes with PR3 [R = alkyl, aryl, or alkoxy] and SnCl3-, SnPh3-, or PbPh3- as ligands. The signs of and trends in the reduced coupling constants 1K(EX) and 2K(EX) for E = Sn(Pb) closely parallel those for E = P, but the actual magnitudes for E = Sn(Pb) are much larger than expected when the mean excitation-energy approximation is used as a basis for the Fermi-contact contribution. This is attributed to greater s character for the hybrid orbital used by E to form the E-Pt bond when E = Sn(Pb) which affects the mutual polarizability and hence K(EX). |
| first_indexed | 2024-03-06T18:44:20Z |
| format | Journal article |
| id | oxford-uuid:0dfca005-bcfc-4118-8206-0b891e96e331 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:44:20Z |
| publishDate | 1990 |
| record_format | dspace |
| spelling | oxford-uuid:0dfca005-bcfc-4118-8206-0b891e96e3312022-03-26T09:43:24ZPATTERNS OF NUCLEAR-SPIN COUPLING IN SPECIES WITH PLATINUM-TIN BONDS - A COMPARISON OF PHOSPHORUS AND TINJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0dfca005-bcfc-4118-8206-0b891e96e331EnglishSymplectic Elements at Oxford1990Mcfarlane, WRees, NA range of heteronuclear magnetic multiple-resonance experiments involving 1H, 31P, 119Sn, 195Pt, and 207Pb was used to determine the absolute signs of nuclear spin-coupling constants for platinum(II) complexes with PR3 [R = alkyl, aryl, or alkoxy] and SnCl3-, SnPh3-, or PbPh3- as ligands. The signs of and trends in the reduced coupling constants 1K(EX) and 2K(EX) for E = Sn(Pb) closely parallel those for E = P, but the actual magnitudes for E = Sn(Pb) are much larger than expected when the mean excitation-energy approximation is used as a basis for the Fermi-contact contribution. This is attributed to greater s character for the hybrid orbital used by E to form the E-Pt bond when E = Sn(Pb) which affects the mutual polarizability and hence K(EX). |
| spellingShingle | Mcfarlane, W Rees, N PATTERNS OF NUCLEAR-SPIN COUPLING IN SPECIES WITH PLATINUM-TIN BONDS - A COMPARISON OF PHOSPHORUS AND TIN |
| title | PATTERNS OF NUCLEAR-SPIN COUPLING IN SPECIES WITH PLATINUM-TIN BONDS - A COMPARISON OF PHOSPHORUS AND TIN |
| title_full | PATTERNS OF NUCLEAR-SPIN COUPLING IN SPECIES WITH PLATINUM-TIN BONDS - A COMPARISON OF PHOSPHORUS AND TIN |
| title_fullStr | PATTERNS OF NUCLEAR-SPIN COUPLING IN SPECIES WITH PLATINUM-TIN BONDS - A COMPARISON OF PHOSPHORUS AND TIN |
| title_full_unstemmed | PATTERNS OF NUCLEAR-SPIN COUPLING IN SPECIES WITH PLATINUM-TIN BONDS - A COMPARISON OF PHOSPHORUS AND TIN |
| title_short | PATTERNS OF NUCLEAR-SPIN COUPLING IN SPECIES WITH PLATINUM-TIN BONDS - A COMPARISON OF PHOSPHORUS AND TIN |
| title_sort | patterns of nuclear spin coupling in species with platinum tin bonds a comparison of phosphorus and tin |
| work_keys_str_mv | AT mcfarlanew patternsofnuclearspincouplinginspecieswithplatinumtinbondsacomparisonofphosphorusandtin AT reesn patternsofnuclearspincouplinginspecieswithplatinumtinbondsacomparisonofphosphorusandtin |