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Reaction of N-cinnamylidenyl-m-4-xylidine(tricarbonyl)iron(1)with phenyllithium andp-chlorophenyllithium at low temperature,and subsequent alkylation of the resulting adducts withEt_3OBF_4 in CH_2Cl_2 at-60℃ gave two novel zwitter-ion iron complexes with the compositions ofC_(19)H_(22)N(CO)_3 FeC_(?)H_5(2)and C_(19)H_(22)N(CO)FeC_6H_4Cl(3),respectively.The complex 2 crystallizesin the monoclinic system,space group P2_1/n with a=10.624(3),b=25.155(6),c=19.375(9)(?),β=101.1(3)°,V:5042.2(?),Z=8,D_c=1.27g/cm~3.The structure of 2 has been solved by direct method and refined by block-matrix least-squaresmethod to give the final R of 0.071.
Reaction of N-cinnamylidenyl-m-4-xylidine (tricarbonyl) iron (1) with phenyllithium and p-chlorophenyllithium at low temperature, and subsequent alkylation of the resulting adducts with Et 3 OBF 4 in CH 2 Cl 2 at -60 ℃ gave two novel zwitter-ion iron complexes with the compositions ofC_ (19) H_ (22) N (CO) _3FeC_ (?) H_5 (2) and C_ (19) H_ (22) N (CO) FeC_6H_4Cl (3), respectively.The complex 2 crystallizesin the monoclinic system , space group P2_1 / n with a = 10.624 (3), b = 25.155 (6), c = 19.375 (9) Dc = 1.27 g / cm ~ 3. The structure of 2 has been solved by direct method and refined by block-matrix least-squares method to give the final R of 0.071.