The Mössbauer spectrum of a three-coordinate compound, tris (hexamethyldisilylaminato) iron (III), Fe[N(SiMe3)2]3

✍ Scribed by B.W. Fitzsimmons; C.E. Johnson

• Publisher: Elsevier Science
• Year: 1974
• Tongue: English
• Weight: 262 KB
• Volume: 24
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(74)85293-0

✦ Synopsis

The trigonal planar high-spin ferric compound, Fe[N(SiMe a 2 a, exhibits a very large temperature-independent 1 I quadrapole splitting & e2 Qq = 6.12 mm see-') in its 57Fe Miissbauer spectrum between I.5 and 300°K. At low temperatures a novel type of magnetic hyperfme spectrum is observed. The (fluctuating) effective magnefic field is parallel fo the electric field gradient axis* and its value at 1.5°K is 175 kG. The line broadening and decreased field found on warming to 42°K shows that the 6A1 state is split by a trigonal &and field with D/k = -ioK.

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