The u.v. irradiation of a hexane solution of 3,3,3-trifluoroprop-1-yne and [FeR(CO)2(η-C5H5)](R = Me, CH2C6H5, or C3H5) affords the vinyl complexes [FeC(CF3)C(H)R}(CO)2(η-C5H5)](R = Me, CH2C6H5), or C3H5) arising from cis insertion of the acetylene, and η5-pyranyl complexes [Fe[graphic ommitted](CF3)}(–(η-C5H5)](R = Me or CH2C6H5). In the case of the methyl and benzyl system, [1–5-η-exo-1-acyl-2
3,3,3-三
氟丙-1-炔和[FER(CO)的己烷溶液的UV照射2(η-C 5 H ^ 5)](R = Me中,CH 2 Ç 6 ħ 5,或C 3 ħ 5),得到
乙烯基配合物的[Fe C(CF 3)C(H)R}(CO)2(η-C 5 H ^ 5)](R = Me中,CH 2 ç 6 ħ 5),或C 3 ħ 5)从所产生的顺式的
乙炔的插入,并且η 5个-pyranyl络合物的[Fe [图形ommitted](CF 3)}( - (η-C5 H 5)](R = Me或CH 2 C 6 H 5)。在甲基和苄基系统的情况下,还形成了[1-5-η-外基-1-酰基-2,4,6-三(三
氟甲基)环
己二烯基](η-
环戊二烯基)
铁配合物。用X射线测定乙酰基化合物的分子结构,结果表明3,3,3-三
氟丙-1-炔分子从头到尾连接在一起,形成了一个六元的包膜构象环,其中五个原子共面且η 5-与
铁原子键合。
环戊二烯基环是同样η