Cationic products from O-protonation reaction of 2-acylnorbornadiene complexes of rhodium with hydrogen chloride in ether: structure, reactivity and nature of hydrogen bond
作者:I.T. Chizhevsky、N.V. Rastova、N.E. Kolobova、P.V. Petrovskii、L.E. Vinogradova
DOI:10.1016/0022-328x(87)85179-3
日期:1987.11
η5C5H4R1+Cl− (II–IV), were prepared as stable salts from the reaction of Rh(η4-C7H7-2-COR)(η5-C5H4R1) (Ia, b, d) (where R = H, Me, R1 = H; R = H, R1 = Me) with HCl in absolute ether. The structure of these cations was deduced from their IR, 1H NMR and 13C NMR spectra. The dimeric dichlorocyclopentadienylrhodium complex, [(η5-C5H5)RhCL2]2, was isolated from Ic (R = Ph, R1 = H) under the same conditions.
铑的阳离子hydroxyallylolefin络合物,[RH(η 2,3- -C 7 ħ 7 -2 CRHOH)η 5 Ç 5 ħ 4 - [R 1 +氯-(II-IV),制备从反应稳定盐的Rh(η的4 -C 7 ħ 7 -2-COR)(η 5 -C 5 H ^ 4 - [R 1)式(Ia,b和d)(其中R = H中,Me,R 1 = H; R = H, R 1 = Me),用HCl在无水乙醚中的溶液。这些阳离子的结构由其IR,1 H NMR和131 H NMR谱。在相同条件下从Ic(R = Ph,R 1 = H)分离出二聚二氯环戊二烯基铑络合物[((n 5 -C 5 H 5)RhCL 2 ] 2。考虑到阳离子II-IV的IR和1 H NMR光谱数据,推测存在O 3 HCl类型的离子间氢键。讨论了在O-质子化的二茂铁中和某些θ-烯醇铁络合物中存在相似的氢键的可能性。研究了羟基烯丙基烯烃阳