An extremely large 57Fe Mössbauer quadrupole splitting for a distorted tetrahedral high-spin iron(II) complex
✍ Scribed by David J. Evans
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 158 KB
- Volume
- 255
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
The zero-field, solid state, 57Fe M~3ssbauer spectrum of the trinuclear high-spin iron(II) complex [Fe3(SC6H2~Pr3 -2,4,6)4{N(SiMe3)2} 2 ] has been recorded at 77 K. 'Unusually' large quadrupole splitting values (> 3.5 mm s -~) are observed for both the distorted trigonal planar (3.60 mm s-J) and distorted tetrahedral iron atoms (4.55 mms ]) of the complex. The quadrupole splitting of the distorted tetrahedral iron atom is extremely large and equals that previously reported as the largest. 'Unusually' large quadrupole splittings for high-spin iron(If) are not that unusual and, in fact, are found for several coordination numbers and geometries.