obtained from [M2(η5-C5Me5)2Cl4][M = Rh (1a) or Ir (1b)] and Na[R1COCHCOR2] are reported. Iridium forms a stable complex [Ir(η5-C5Me5)(acac)2] in which the two acac (MeCOCHCOMe) groups are OO′- and C-bonded respectively; no exchange is detectable on the 1H n.m.r. time scale. The complex [Rh(η5-C5Me5)Cl(acac)] undergoes substitution when treated with N-bromo- or N-iodo-succinimide to give [Rh(η5-C5
(
β-二酮盐络合物[M(η的合成和性质5 -C 5我5)X(R 1 COCHCOR 2)] [M = RH,X =
氯,R 1 = R 2 =我,R 1 = R 2 = CF 3,R 1 = Me,R 2 = Pr n,R 1 = Me,R 2 = OEt,或R 1 = Me,R 2 = CF 3; M = Rh,R 1 = R 2 = Me,X = Br,I,N 3或
OAc(
乙酸盐); M = Ir,X = Cl,R 1 = R 2= Me中,或者R 1 = R 2 = CF 3 ]从[M获得2(η 5 -C 5我5)2
氯4 ] [M =
铑(1a)或
铱(1b)中]和Na [R 1 COCHCOR 2 ]被报告。
铱形成稳定的配合物[Ir(η 5 -C 5我5)(A
CAC)2 ],其中两个A
CAC(MeCOCHCOMe)基团是OO ' -和ç分别键合的; 在1 H nmr时间刻度上没有检测到交换。复杂的[Rh(η