The preparation and properties of M[prime]M[sub 5]X[sub 8] (X = Se, Te; M = Cr, Ti; M[prime] = Li, Na, K, Rb, Cs, Cd, Sn, Pb) via low temperature ion exchange reaction

Journal Article · Sun Jan 01 00:00:00 EST 1995 · Materials Research Bulletin; (United States)

DOI:https://doi.org/10.1016/0025-5408(94)00117-0· OSTI ID:6537392

Novet, T; Wagner, M; Jiang, M; Johnson, D C ^[1]

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1. Univ. of Oregon, Eugene, OR (United States)

Low temperature ion exchange reactions were used to prepare an isostructural series of compounds, M[prime]M[sub 5]X[sub 8] (X = Se, Te; M = Cr, Ti; M[prime] = Li, Na, K, Rb, Cs, Cd, Sn, Pb) in which the exchanged cations reside in one-dimensional tunnels within the structure. Calorimetry and diffraction measurements were used to follow the exchange process and chemical analysis of the products showed a dependence on the extent of exchange with cation size. Exchange of divalent cations into the Cr[sub 5]X[sub 8] framework led to a doubling of the unit cell in the tunnel direction due to an ordering of the cations while divalent cations in the Ti[sub 5]Se[sub 8] framework remained randomly ordered. Magnetic susceptibility studies on several of the products indicated only small perturbations on the magnetic properties of the parent compounds as a result of cation exchange.

• OSTI ID: 6537392
• Journal Information: Materials Research Bulletin; (United States), Vol. 30:1; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
CHROMIUM ALLOYS
CHEMICAL PREPARATION
CRYSTAL STRUCTURE
MAGNETIC SUSCEPTIBILITY
INDIUM ALLOYS
SELENIUM ALLOYS
TELLURIUM ALLOYS
THALLIUM ALLOYS
TITANIUM ALLOYS
CADMIUM
CESIUM
INTERMETALLIC COMPOUNDS
ION EXCHANGE
LEAD
LITHIUM
POTASSIUM
RUBIDIUM
SODIUM
THERMAL GRAVIMETRIC ANALYSIS
TIN
X-RAY DIFFRACTION
ALKALI METALS
ALLOYS
CHEMICAL ANALYSIS
COHERENT SCATTERING
DIFFRACTION
ELEMENTS
GRAVIMETRIC ANALYSIS
MAGNETIC PROPERTIES
METALS
PHYSICAL PROPERTIES
QUANTITATIVE CHEMICAL ANALYSIS
SCATTERING
SYNTHESIS
THERMAL ANALYSIS
400201* - Chemical & Physicochemical Properties
360102 - Metals & Alloys- Structure & Phase Studies
360104 - Metals & Alloys- Physical Properties