Accession Number:

ADA222273

Title:

Synthesis, Structure, Electric and Magnetic Properties of CaNiN

Descriptive Note:

Technical rept. no. 5, 1989-1990,

Corporate Author:

CORNELL UNIV ITHACA NY DEPT OF CHEMISTRY

Personal Author(s):

Report Date:

1990-04-30

Pagination or Media Count:

23.0

Abstract:

There are only few known ternary nitrides containing both transition and alkaline earth metals. Our recent research in nitrides has focused on the synthesis of ternary phases containing calcium and a transition metal at least one new ternary compound is found in each Ca-M-N system. As part of this investigation, we report here the synthesis and properties of a new compound, CaNiN. The oxidation state of NiI in CaNiN is quite unusual for a solid state compound. Formally NiI exists in hexagonal Ni3N. But the structure of Ni3N is basically a tripled face-centered cubic nickel framework with interstitial nitrogen in the octahedral holes, and has extensive Ni-Ni bonding. Another similar example is Ni3S2 6, in which formally NiI and NiII occur, but short Ni-Ni distances comparable with that in metallic nickel are again indicative of metal-metal bonding 7. jes

Subject Categories:

  • Inorganic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE