decomposition. Complexes 2–7 and 11/12 were isolated in pure states and fully characterized by elemental analysis, NMR spectroscopy, and X-ray diffraction measurements (2, 11, 12). For the dinuclear bis(olefin) (1–3) and bis(alkyne) complexes (11, 12) solvent-dependent equilibria between the transoid and cisoid isomers were observed, and these could even be ascertained crystallographically for complex [PtCl2(tBuC≡CtBu)}2]
制备了 Zeise 二聚体类型的双(烯烃)配合物 - [PtCl2(cis-MeHC=CHMe)}2] (2) 或 [PtCl2(c-Hex)}2] (3, c-Hex =
环己烯) -通过在 SnCl2 或 K[PtCl3(cis-MeHC=CHMe)] 存在下用相应的烯烃处理 K2[PtCl4]。发现 Zeise 的二聚体 [PtCl2(H2C=
CH2)}2] (1) 在
氯仿或
二氯甲烷中与内部
炔烃 RC≡CtBu (R = Me, tBu) 反应,前提是去除了裂解的
乙烯, 以产生 Zeise 二聚体类型的双 (炔) 复合物 [PtCl2(RC≡CtBu)}2] (R = Me, 11; tBu, 12)。在不去除
乙烯的情况下,单核混合
乙烯/炔配合物顺式-[PtCl2(H2C= )(RC≡CtBu)] (R = Me, 8; tBu, 9) 和顺式-[PtCl2(H2C= )2]