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Titolo:
Direct measurement of the high-spin and low-spin bond lengths and the spinstate population in mixed spin state systems: an FeK-edge XAFS study of iron(III) dithiocarbamate complexes
Autore:
McGrath, CM; OConnor, CJ; Sangregorio, C; Seddon, JMW; Sinn, E; Sowrey, FE; Young, NA;
Indirizzi:
Univ Hull, Dept Chem, Hull HU6 7RX, N Humberside, England Univ Hull Hull N Humberside England HU6 7RX U6 7RX, N Humberside, England Univ New Orleans, Adv Mat Res Inst, New Orleans, LA 70148 USA Univ New Orleans New Orleans LA USA 70148 Inst, New Orleans, LA 70148 USA
Titolo Testata:
INORGANIC CHEMISTRY COMMUNICATIONS
fascicolo: 11, volume: 2, anno: 1999,
pagine: 536 - 539
SICI:
1387-7003(199911)2:11<536:DMOTHA>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
X-RAY-ABSORPTION; CURVED-WAVE THEORY; DEPENDENT MAGNETIC-BEHAVIOR; INTERMEDIATE SPIN; CRYSTAL-STRUCTURE; FINE-STRUCTURE; EXAFS CALCULATIONS; TRANSITION; SPECTROSCOPY; PARAMETERS;
Keywords:
spin crossover; X-ray absorption spectroscopy; XAFS; dithiocarbamate complexes; iron complexes;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Young, NA Univ Hull, Dept Chem, Hull HU6 7RX, N Humberside, England Univ Hull Hull N Humberside England HU6 7RX Humberside, England
Citazione:
C.M. McGrath et al., "Direct measurement of the high-spin and low-spin bond lengths and the spinstate population in mixed spin state systems: an FeK-edge XAFS study of iron(III) dithiocarbamate complexes", INORG CH C, 2(11), 1999, pp. 536-539

Abstract

A combination of Fe K-edge XAFS and advanced data analysis methods has been used to determine the Fe-S distances and spin state population in iron(III) dithiocarbamate spin crossover complexes. This new approach allows for the first direct determination of Fe-S bond lengths (2.44(2) Angstrom high-spin, 2.30(2) Angstrom low-spin) for both spin state isomers in mixed spin systems in contrast to single crystal X-ray crystallographic determinations where only the weighted average of the HS and LS values is observed. The agreement between XAFS and magnetic susceptibility derived values of the spinstate populations is very good. (C) 1999 Elsevier Science S.A. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 15:43:18