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This article describes recent developments in chemical study on a series of butterfly-shaped μ-CO-containing Fe/E (E = S, Se, Te) cluster salts. These salts include eleven novel cluster anions, which are the single butterfly one μ-CO-containing [(μ-RE)(μ-CO)Fe2(CO)6]- (A), the double butterfly two μ-CO-containing {[(μ-CO)Fe2(CO)6]2(μ-EZE-μ)}2- (B, E = S; C, E = Se), the triple butterfly three μ-CO- containing {[(μ-CO)Fe2(CO)6]3[(μ-SCH2CH2)3N]}3- (D), {[(μ-CO)Fe2(CO)6]3[1,3,5-(μ-SCH2)3C6H3]}3- (E), {[(μ- CO)Fe2(CO)6]3[(μ-SCH2)3CMe]}3- (F), the double butterfly one μ-CO-containing {[(μ-CO)Fe2(CO)6] [Fe2(CO)6][(μ-SCH2)3CMe]} - (G) derived in situ from F, the quadruple butterfly four μ-CO-containing {[(μ- CO)Fe2(CO)6]4[1,2,4,5-(μ-SCH2)4C6H2]}4- (H), the triple butterfly two μ-CO-containing {[(μ-CO)Fe2(CO)6]2 [Fe2(CO)6][1,2,4,5-(μ-SCH2)4C6H2]}2- (I) derived in situ from H, the quadruple butterfly four μ-CO-con- taining {[(μ-CO)Fe2(CO)6]4[(μ-SCH2)4C]}4- (J), and the triple butterfly two μ-CO-containing {[(μ-CO)Fe2 (CO)6]2[Fe2(CO)6][(μ-SCH2)4C]}2- (K) derived in situ from J. This article describes not only the synthetic methods for formation of such anionic cluster (A-K) salts, but also their novel reactions leading to various new types of butterfly Fe/E cluster complexes. All these findings described in this article are important both theoretically and practically.
This article describes recent developments in chemical study on a series of butterfly-shaped μ-CO-containing Fe / E (E = S, Se, Te) cluster salts. These salts include eleven novel cluster anions, which are the single butterfly one μ CO-containing [(μ-CO) Fe2 (CO) 6] - (A) (μ-EZE-μ)} 2- (B, E = S; C, E = Se), the triple butterfly three μ-CO- containing {[ SCH2CH2) 3N] 3- (D), {[(μ-CO) Fe2 (CO) 6] 3 [1,3,5- (μ-SCH2) 3C6H3]} 3- -CO) Fe2 (CO) 6] 3 [(μ-SCH2) 3CMe] 3- (F), the double butterfly one μ- (Μ-SCH2) 3CMe] - (G) derived in situ from F, the quadruple butterfly four μ-CO-containing {[(μ- CO) Fe2 (CO) 6] 4 [1,2 (Μ-CO) Fe2 (CO) 6] 2 [Fe2 (CO) 6] [4- (Μ-SCH2) 4C6H2]} 2- (I) derived in situ from H, the quadruple butterfly four μ-CO-con- taining {[ ] 4 [(μ-SCH2) 4C]} 4- (J), and th e triple butterfly two μ-CO-containing {[(μ-CO) Fe2 (CO) 6] 2 [Fe2 (CO) 6] [(μ-SCH2) 4C]} 2- (K) derived in situ from J. This article describes not only synthetic methods for formation of such anionic clusters (AK) salts, but also their novel reactions leading to various new types of butterfly Fe / E cluster complexes. All these findings described in this article are important both practically and practically .