Answers are grounded in this paper and cite their sources.
Local density functional calculations for [Ti8C12], observed as a positive ion by Castleman et al., yield distances Ti–C 1.99, C–C 1.40, Ti–Ti 3.02 Å for the pentagonal dodecahedral (Th) structure in which C2 units cap the faces of the Ti8 cube, but indicate a much more stable isomer in which six C2 units occupy the butterflies of a Ti8 tetracapped tetrahedron, and point to significant reactivity patterns.
No takes yet. Share an insight, caveat, or question.
Ian Dance (1992) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: