Published November 1977 | Version v1
Journal article Metadata-only

Synthesis and structures of compounds Na/sub x/VSe2

Creators

  • 1. Rijksuniversiteit, Groningen, Netherlands

Description

Compounds Na/sub x/VSe2, prepared from the elements, crystallize in two different forms: Type I for 0.5 < or = x < or = 0.7 and Type II for x = 1. The structures of Na0.6VSe2 and NaVSe2 were refined from neutron-diffraction powder data. Both compounds have vanadium in trigonally distorted octahedra which are elongated in the direction of the trigonal axis for Type I (V--Se = 2.516 A) and compressed for Type II (V--Se = 2.588 A). Na is in trigonal-prismatic coordination for Type I (Na--Se = 2.972 A) and in trigonally distorted octahedra for Type II (Na--Se = 2.947 A). The bonding is discussed. NaVSe2 is an ionic compound analogous to NaCrSe2

Additional details

Publishing Information

Journal Title
Mater. Res. Bull.
Journal Volume
12
Journal Issue
11
Series
Mater. Res. Bull.
Journal Page Range
1103-1110
ISSN
0025-5408

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
10481794
Subject category
S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
Descriptors DEI
CRYSTAL STRUCTURE; CRYSTAL-PHASE TRANSFORMATIONS; LATTICE PARAMETERS; SELENIDES; SODIUM COMPOUNDS; SYNTHESIS; VANADIUM SELENIDES
Descriptors DEC
ALKALI METAL COMPOUNDS; CHALCOGENIDES; PHASE TRANSFORMATIONS; SELENIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; VANADIUM COMPOUNDS