A new preparative route to cationic arene complexes of ruthenium(II), rhodhium(III) and iridium(III)
作者:M.I. Rybinskaya、A.R. Kudinov、V.S. Kaganovich
DOI:10.1016/s0022-328x(00)98733-3
日期:1983.4
The cationic arene complexes [Ru(η-arene)(η-arené)]Y2 and [M(η-C5Me5(η-arene)]Y2 (M = Rh, Ir; Y = BF4, PF4, PF6) were prepared by direct exchange of chloride ligands in dimers [Ru(η-arene)Cl2]2 and [M(η-C5Me5)]2 for arenes by refluxing in trifluoroacetic acid. The triple chloride-bridged complexes [Ru2(η-arene)2 Cl3]Y and [M2(η-C5Me5)2Cl3]Y were obtained by reaction of these dimers with acids.
阳离子芳烃络合物的[Ru(η-芳烃)(η-芳烃) - ] Y 2和[M(η-C 5我5(η-芳烃) - ] Y 2(M =铑,铱; Y = BF 4,PF 4,PF 6)中制备由二聚体的[Ru(η-芳烃)氯氯化物配体的直接交换2 ] 2和[M(η-C 5我5)] 2通过在三氟乙酸中回流的芳烃。三重氯化物-bridged络合物的[Ru 2(η-芳烃)2氯3 ] Y和[M 2(η-C 5我5)2氯3通过这些二聚体与酸的反应获得] Y。
Structural consequences of electron-transfer reactions. 19. NMR evidence for a planar arene intermediate in the electron-transfer-induced .eta.6 to .eta.4 hapticity change of a rhodium arene complex
作者:Jon Merkert、Roger M. Nielson、Michael J. Weaver、William E. Geiger
DOI:10.1021/ja00200a029
日期:1989.8
substituents. The magnetic equivalence of the methyl arene resonances is consistent with a planar arene structure in the complex. It is shown that a structural formulation including a highly fluxional bent arene is unlikely. The results demonstrate eta 4-arene hapticity, the one-electron intermediate can retain the planar arene structure, even if this results in a 19 e- metal.
摘要 : 已获得铑 (II) 配合物 (eta-C6Me6)RhCp*)+、Cp* = 5-C5Me5、200 MHz 和 470 MHZ 的氢 1 核磁共振谱。在二氯甲烷中 298 K 和 183 K 之间观察到芳烃CH3 质子的单共振。共振的温度依赖性与 Rh(II) 配合物的双态公式一致。在 298 K 下,芳烃取代基的 化学位移为 56 ppm,环戊二烯基取代基的 化学位移为 123 ppm。甲基芳烃共振的磁等效性与配合物中的平面芳烃结构一致。结果表明,不太可能出现包含高通量弯曲芳烃的结构配方。结果表明eta 4-芳烃触觉,单电子中间体可以保留平面芳烃结构,即使这导致19 e-金属。
Bowyer, Walter J.; Merkert, Jon W.; Geiger, William E., Organometallics, 1989, vol. 8, # 1, p. 191 - 198
作者:Bowyer, Walter J.、Merkert, Jon W.、Geiger, William E.、Rheingold, Arnold L.