Selective π-facial binding of metal cations to triindenotriphenylene as a possible catalytic route to C60precursors: a MNDO, PM3 and ab initio SCF-MO study
- 1 January 1994
- journal article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 2
- No. 3,p. 399-400
- https://doi.org/10.1039/p29940000399
Abstract
MNDO and PM3 SCF-MO calculations predict that in common with Li+, larger ions such as Tl+, Pb+ or NH4 + are predicted to preferentially bind to the convex surface of 1 and hence are unlikely to encapsulate in any dimerisation reaction. The calculated molecular electrostatic potential of 1 also reveals the convex face to be the better electron donor. Concave binding is predicted at the MNDO level for Na+ and K+ and the PM3 level for Ga+, but these results may be influenced by errors for these metals resulting in excessive stabilisation to π-faces. Ab initio calculations at the MP2/ECP-LAN1LDZ level predict that Ga+ has the highest binding energy of all these metals to benzene, and may constitute the best candidate for synthetic efforts.Keywords
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