A trinuclear EMAC-type molecular wire with redox-active ferrocenylacetylide "alligator clips" attached

被引:63
作者
Berry, JF [1 ]
Cotton, FA [1 ]
Murillo, CA [1 ]
机构
[1] Texas A&M Univ, Dept Chem, Mol Struct & Bonding Lab, College Stn, TX 77843 USA
关键词
D O I
10.1021/om049979d
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Reaction of lithium ferrocenylacetylide (LiFcA) with [CO3(dpa)(4)(NCCH3)(2)](PF6)(2) (dpa = 2,2'-dipyridylamide) in acetonitrile solution yields the bisferrocenylacetylide EMAC (extended metal atom chain) Co-3(dpa)(4)(FcA)(2) in good yield and excellent purity. The crystal structure features a distinctly unsymmetrical tricobalt chain with a Co-Co bond distance of 2.3091(8) Angstrom and a longer Co...Co separation of 2.5208(9) Angstrom. Cyclic and differential pulse voltammetry show that the two Fe-2divided by13divided by oxidations occur nearly simultaneously, with a DeltaE(1/2) of 71 mV.
引用
收藏
页码:2503 / 2506
页数:4
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