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- Title
YAlC: A Bonding Chameleon with Heteropolyacetylene Features.
- Authors
Kotyrba, Martin R.; Cuervo ‐ Reyes, Eduardo; Nesper, Reinhard
- Abstract
YAlC was prepared by a flux method. It crystallizes as a partially filled-up TlI structure, showing remarkable structural aspects at the border between Zintl phases and intermetallics. This novel ternary aluminide-carbide exhibits a unique one-dimensional multi-center bond and a polyacetylene-related aluminum carbide substructure. The different functionalities of aluminum and of yttrium are quite remarkable. While the latter behaves more like a trivalent ion, aluminum contributes considerably to covalent bonding with carbon. Still yttrium d states contribute, but hardly in a directed manner.
- Subjects
POLYACETYLENES; COVALENT bonds; CRYSTALLIZATION; INTERMETALLIC compounds; ALUMINUM carbide; YTTRIUM; SILICON carbide
- Publication
Angewandte Chemie, 2015, Vol 127, Issue 33, p9742
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201501356