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New transition metal silicoselenides possessing $CdI_2$-type structures

Gopalakrishnan, J and Nanjundaswamy, KS (1988) New transition metal silicoselenides possessing $CdI_2$-type structures. In: Materials Research Bulletin, 23 (1). pp. 107-112.

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Three different kinds of first-row transition metal silicoselenides having $Cdl_2$-related structures have been synthesized. Vanadium and chromium form $VSiSe_3$ and $Cr_1_+_x$ $SiSe_3$, which are similar to $MPSe_3$ crystallizing in a hexagonal structure. Manganese forms $Mn_3_/_2SiSe_3$ which is isostructural with $Mn_3_/_2SiTe_3$. With Fe, Co and Ni, a new type of silicoselenide of the formula $MSi_2$ $Se_4$ (M = Fe, Co or Ni) is obtained. These solids crystallize in the $Cdl_2/Cr_3S_4$ structure where M atoms and Si-Si pairs occupy the cation positions.

Item Type: Journal Article
Publication: Materials Research Bulletin
Publisher: Elsevier Science
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: Silicoselenides; vanadium; chromium; manganese; iron; cobalt; nickel
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 19 Feb 2008
Last Modified: 19 Sep 2010 04:42
URI: http://eprints.iisc.ac.in/id/eprint/12958

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