Sc–Sc Bonding in the New Ternary Phosphide ScNiP

✍ Scribed by Holger Kleinke; Hugo F. Franzen

• Book ID: 102605300
• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 298 KB
• Volume: 137
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1006/jssc.1997.7704

✦ Synopsis

The new phosphide ScNip can be synthesized by arc-melting of ScP and Ni, or by arc-melting of Sc with NiP. The lattice constants, as obtained from the bulk sample, are a ‫؍‬ 6.3343(8) A s , b ‫؍‬ 3.7375(7) A s , c ‫؍‬ 7.0917(8), and V ‫؍‬ 167.89(4) A s .

ScNiP crystallizes in the Co

Si structure type. Although one might assign the trivalent state to Sc, corresponding to a formal ionic formula of Sc 3؉ Ni ؎0 P 3 , the structure of ScNiP contains Sc-Sc bonds and shows weak metallic properties, as expected based on extended Hu] ckel calculations.