Novel mixed ligand sandwich complexes:: competitive binding of iron with benzene, coronene, and C60

被引:58
作者
Buchanan, JW [1 ]
Grieves, GA [1 ]
Reddic, JE [1 ]
Duncan, MA [1 ]
机构
[1] Univ Georgia, Dept Chem, Athens, GA 30602 USA
关键词
organometallic complexes; metal ions; photodissociation;
D O I
10.1016/S1387-3806(98)14239-2
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
Organometallic complexes of iron with benzene, coronene and C-60 are produced in a molecular beam and studied with time-of-flight mass spectrometry and laser photodissociation. The cation complexes are produced in a pulsed nozzle laser vaporization source using an iron rod coated with a sublimed film of coronene and/or C-60. Benzene is seeded in the expansion gas. Masses of the form [A(x)-Fe-B-y](+) are observed when A and B are benzene, coronene, or C-60, taken any two at a time. Masses are observed for all combinations where x + y = 1 or 2, indicating the formation of monoligand and sandwich complexes. Mixed-Ligand sandwiches form with comparable abundance to homoligand sandwiches. Mass-selected photodissociation probes the relative bonding strengths in these new species. (C) 1999 Elsevier Science B.V.
引用
收藏
页码:323 / 333
页数:11
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