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四氟苯并双环[2.2.2]辛三烯三羰基铁(C_(12)H_6F_4)-Fe(CO)_3(1)与芳基锂试剂ArLi(Ar=C_6H_5ο-,m-,ρ-CH_3C_6H_4、ρ-CH_3OC_6H_4、ρ-ClC_6H_4),在低温下反应,生成的酰羰基锂盐中间体用三乙基氧铃一四氟硼酸盐(Et_3OBF_4)在水溶液中于O℃进行烷基化时,双环烯烃配体开环,生成组成为(C_(12)H_6F_4)(CO)_2FeC(OC_2H_5)Ar的螯合双烯丙基二羰基铁配合物(2—7)。配合物5的晶体属单斜晶系,晶胞参数为:a=16.870(4),b=13.707(4),c=19.361(4)A,β=107.92(2)°,v=4259(1)A~3,z=8,空间群为C_(2h)~6—C2/c,最后的偏离因子R=O.0409,R_w=O.0391。
(C_ (12) H_6F_4) -Fe (CO) _3 (1) and the aryl lithium reagent ArLi (Ar = C_6H_5ο-, m-, ρ-CH_3C_6H_4 , Ρ-CH_3OC_6H_4, ρ-ClC_6H_4) and reacted at low temperature. When the resulting acylcarbonyl lithium salt intermediate was alkylated with triethyl-oxazolium tetrafluoroborate (Et_3OBF_4) in an aqueous solution at 0 ° C, The bicyclic olefin ligands are ring-opened to form chelated bis (allyl dicarbonyl) iron complexes (2-7) with the composition of (C_ (12) H_6F_4) (CO) _2FeC (OC_2H_5) Ar. The crystal of complex 5 is monoclinic with unit cell parameters of a = 16.870 (4), b = 13.707 (4), c = 19.361 (4) A, β = 107.92 (2) °, v = 4259 1) A ~ 3, z = 8, space group C_ (2h) ~ 6-C2 / c, the final deviation factor R = O.0409, R_w = O.0391.