Mechanochemical effects on the structures and chemical states of [Fe(Phen)3](NCS)2·H2O

N. Tsuchiya, Tetsuhiko Isobe, M. Senna, Naoki Yoshioka, H. Inoue

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Abstract

Changes in the structure and chemical bonding state of coordination complex crystal, iron(II) tris (1,10-phenanthroline) dithiocyanate (FPhN) by mechanical stress were studied by X-ray diffractometry and infrared spectroscopy. FPhN was completely amorphized after milling by a planetary ball-mill for 5 h. Amorphized FPhN recrystallized at 406 K, but no significant change in the thermal decomposition processes was observed. On amorphization, the ligand field strength of phenanthroline in FPhN was reduced and hence the transition from low spin (1A1g) to high spin (5T2g) occurred gradually on heating, as detected by the increase in the effective magnetic moment.

Original languageEnglish
Pages (from-to)525-529
Number of pages5
JournalSolid State Communications
Volume99
Issue number8
DOIs
Publication statusPublished - 1996 Aug

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Keywords

  • A. disordered systems
  • D. crystal and ligand fields
  • D. exchange and superexchange
  • E. strain
  • High pressure

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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