Photophysics of AgCl doped with [Cl5Ir(N-methylpyrazinium)]-: II. ENDOR studies of13C enriched and2D exchanged complexes

Autor:	Thomas D. Pawlik, W G McDugle, R C Baetzold, R S Eachus
Rok vydání:	2000
Předmět:	Proton Chemistry Ligand Precipitation (chemistry) Doping Inorganic chemistry chemistry.chemical_element Condensed Matter Physics Spectral line chemistry.chemical_compound Crystallography Deuterium General Materials Science Carbon Methyl group
Zdroj:	Journal of Physics: Condensed Matter. 12:2555-2566
ISSN:	1361-648X 0953-8984
DOI:	10.1088/0953-8984/12/11/319
Popis:	Additional information has been obtained on the structure of donor complexes produced by photoelectron trapping at [Cl5 Ir(NMP)]- (NMP = N-methylpyrazinium cation) centres in AgCl microcrystals. Several different [Cl5 Ir(NMP)]- complexes were prepared by full or partial deuteration of the NMP ligand protons, and by isotopically enriching the methyl group carbon with 13 C. The analysis of the corresponding changes in the [Cl5 Ir(NMP)]2- powder ENDOR spectra made it possible to assign SHF lines to specific proton/deuteron sites. In addition, an SHF interaction from the methyl group carbon was resolved in the 13 C-enriched compounds. These observations, combined with preliminary results for the related donor [{(CN)}5 Fe(NMP)]3- and consideration of the g matrix, support the previous contention that [Cl5 Ir(NMP)]- is incorporated intact into AgCl dispersions during precipitation.
Databáze:	OpenAIRE
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