The thermal average gas phase molecular structures of bis(pentamethylcyclopentadienyl)-strontium, Sr(C5Me5)2, and -barium, Ba(C5Me5)2, are best described as bent sandwich structures where the mean Sr–C and Ba–C bond distances are 275.0(8) and 289.8(17)pm and the ring centroid–metal–ring centroid angles are 149(3)° and 148(6)° respectively.
双(五
甲基环戊二烯)-strontium的热平均气相分子结构,SR(C 5我5)2,和-barium,
钡(C 5我5)2,被其中平均
锶-C最好被描述为弯曲的夹层结构和Ba–C的键距分别为275.0(8)和289.8(17)pm,环质心-
金属-环质心角分别为149(3)°和148(6)°。