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

Authors
Journal
Solid State Communications
0038-1098
Publisher
Elsevier
Publication Date
Volume
99
Issue
8
Identifiers
DOI: 10.1016/0038-1098(96)00359-6
Keywords
  • A. Disordered Systems
  • D. Crystal And Ligand Fields
  • D. Exchange And Superexchange
  • E. Strain
  • High Pressure
Disciplines
  • Chemistry
  • Physics

Abstract

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 ( 1A 1g) to high spin ( 5T 2g) occurred gradually on heating, as detected by the increase in the effective magnetic moment.

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