Structural dependencies of pyramidal inversion at sulphur and selenium in thio- and seleno- ether complexes of palladium(II) and platinum(II)
作者:E.W. Abel、S.K. Bhargava、K. Kite、K.G. Orrell、V. Šik、B.L. Williams
DOI:10.1016/s0277-5387(00)87167-3
日期:1982.1
Total NMR band shape fitting methods have provided accurate energy data for inversion barriers at sulphur and selenium in complexes of types cis-[MX2L] (M = PdII, PtII; X = Cl, Br, I; L = MeS(CH2)2SMe, MeS(CH2)3SMe, o-(SMe)2C6H3Me, cis-MeSCH=CHSMe) and [PtXMeMeE(CH2)2E′Me}] (E= E′= S or Se and E = S, E′= Se; X = Cl, Br, I). Barrier energies were found to decrease by 10–12 kJ mol−1 in going from aliphatic
总NMR谱带形状拟合方法为顺式[[MX 2 L](M = Pd II,Pt II ; X = Cl,Br,I; L = MeS( CH 2)2 SMe,MeS(CH 2)3 SMe,o-(SMe)2 C 6 H 3 Me,顺式-MeSCH = CHSMe)和[PtXMe MeE(CH 2)2 E'Me}](E = E′= S或Se,并且E = S,E′= Se; X = Cl,Br,I)。发现势垒能量降低了10–12 kJ mol -1从脂族到芳族再到烯烃配体骨架。这可以用反转中心和配体骨架之间的(3 p -2 p)π共轭来解释。讨论了配体环大小,卤素原子的性质和金属氧化态对势垒能的影响。