[sup 81]Br and [sup 35]Cl NMR investigation of sodium, silver, halo-sodalite semiconductor supralattices

Journal Article · Tue Mar 23 23:00:00 EST 1993 · Journal of the American Chemical Society; (United States)

DOI:https://doi.org/10.1021/ja00059a038· OSTI ID:6153058

Jelinek, R ^[1]; Stein, A; Ozin, G A ^[2]

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1. Lawrence Berkeley Lab., CA (United States)
2. Univ. of Toronto, Ontario (Canada)

[sup 81]Br and [sup 35]Cl NMR yields, respectively, bromide and chloride site-specific information pertinent to the structural and electronic properties of Na[sub 8-n-p]Ag[sub n]X[sub 2-p]-sodalite, semiconductor cluster supralattices, where X = Br, Cl; 0 [le] n [le] 8; 0 [le] p [le] 2. The [sup 81]Br and [sup 35]Cl MAS chemical shifts and line shapes observed for encapsulated Na[sub 4]X and Ag[sub 4]X clusters within the sodalite cavities provide insight into the nature of the intracluster bonding (ionic-covalent character) and the extent of intercavity coupling. Substantial nuclear shielding is observed for encapsulated Ag[sub 4]X clusters in sodalite materials with high loading of Ag[sub 4]Br clusters, whereas no NMR signal is detected from silver-bromide clusters isolated within sodalite lattices. Spin-lattice and spin-spin relaxation measurements yield information on intracavity coupling and motion within the sodalite cages. The results enable one to explore the transition from isolated clusters to an expanded Ag[sub 4]X supralattice, through the compositional and temperature dependence of the NMR spectra of the sodalite halide anions. 22 refs., 10 figs.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6153058
• Journal Information: Journal of the American Chemical Society; (United States), Journal Name: Journal of the American Chemical Society; (United States) Vol. 115:6; ISSN JACSAT; ISSN 0002-7863
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602 -- Other Materials-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKALI METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM SILICATES
BROMIDES
BROMINE 81
BROMINE COMPOUNDS
BROMINE ISOTOPES
CHLORIDES
CHLORINE 35
CHLORINE COMPOUNDS
CHLORINE ISOTOPES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
HALIDES
HALOGEN COMPOUNDS
INORGANIC ION EXCHANGERS
INTERMEDIATE MASS NUCLEI
ION EXCHANGE MATERIALS
ISOTOPES
LIGHT NUCLEI
MAGNETIC RESONANCE
MATERIALS
MINERALS
NUCLEAR MAGNETIC RESONANCE
NUCLEI
ODD-EVEN NUCLEI
OXYGEN COMPOUNDS
RESONANCE
SEMICONDUCTOR MATERIALS
SILICATE MINERALS
SILICATES
SILICON COMPOUNDS
SILVER BROMIDES
SILVER CHLORIDES
SILVER COMPOUNDS
SODIUM BROMIDES
SODIUM CHLORIDES
SODIUM COMPOUNDS
STABLE ISOTOPES
TRANSITION ELEMENT COMPOUNDS
ZEOLITES