Experimental and computational evidence of octa- and nona-coordinated planar iron-doped boron clusters: FeB8- and FeB9-
نویسندگان
چکیده
We report the observation of two Fe-doped boron clusters with wheel-type structures, containing an octa-coordinate (C8v-Fe B8 ) and a nona-coordinate (D9h-Fe B9 ) Fe atom. The clusters were produced in a laser vaporization supersonic molecular beam and characterized by combined photoelectron spectroscopy and ab initio studies. Chemical bonding analyses revealed that in the ground state both clusters are doubly (s þ p) aromatic and that the iron atom interacts with the peripheral boron ring exclusively through delocalized bonds. These findings provide further support to the design principle for metaldoped boron clusters with highly symmetric molecular wheel-type structures. 2012 Elsevier B.V. All rights reserved.
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