Chalcogen ring interconversion pathways. [sup 77]Se NMR spectroscopic study of the decomposition of 1,2,3,4,5-Se[sub 5]S[sub 2] to 1,2,3,4,5,6-Se[sub 6]S[sub 2] and 1,2,3,4-Se[sub 4]S[sub 2]
Journal Article
·
· Inorganic Chemistry; (United States)
- Univ. of Oulu, (Finland)
- Univ. of Joensuu (Finland)
The decomposition of both natural-abundance and [sup 77]Se-enriched 1,2,3,4,5-Se[sub 5]S[sub 2] in CS[sub 2] solution has been monitored with [sup 77]Se NMR spectroscopy. The freshly prepared samples showed only signals due to 1,2,3,4,5-Se[sub 5]S[sub 2]. When samples are allowed to stand in the CS[sub 2] solution, additional resonances are observed. Comparison of the natural-abundance spectrum with that from the enriched sample enabled the assignment of these additional resonances to 1,2,3,4-Se[sub 4]S[sub 2] and 1,2,3,4,5,6-Se[sub 6]S[sub 2] to be made. The simulation of the enriched spectrum yielded the [sup 77]Se-[sup 77]Se coupling constants. All transitions could be assigned with an excellent fit. The NMR results show that the decomposition of 1,2,3,4,5-Se[sub 5]S[sub 2] proceeds with a selenium atom transfer from one seven-membered ring molecule to another.
- OSTI ID:
- 6770416
- Journal Information:
- Inorganic Chemistry; (United States), Journal Name: Inorganic Chemistry; (United States) Vol. 30:19; ISSN 0020-1669; ISSN INOCAJ
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CHALCOGENIDES
CHEMICAL REACTIONS
COUPLING CONSTANTS
DATA
DECOMPOSITION
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MAGNETIC RESONANCE
MATHEMATICAL MODELS
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
RADIOISOTOPES
RESONANCE
SECONDS LIVING RADIOISOTOPES
SELENIUM 77
SELENIUM COMPOUNDS
SELENIUM ISOTOPES
SELENIUM SULFIDES
STABLE ISOTOPES
SULFIDES
SULFUR COMPOUNDS
THEORETICAL DATA
400201* -- Chemical & Physicochemical Properties
CHALCOGENIDES
CHEMICAL REACTIONS
COUPLING CONSTANTS
DATA
DECOMPOSITION
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MAGNETIC RESONANCE
MATHEMATICAL MODELS
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
RADIOISOTOPES
RESONANCE
SECONDS LIVING RADIOISOTOPES
SELENIUM 77
SELENIUM COMPOUNDS
SELENIUM ISOTOPES
SELENIUM SULFIDES
STABLE ISOTOPES
SULFIDES
SULFUR COMPOUNDS
THEORETICAL DATA