Moessbauer absorption spectra of 119Sn in single crystals of (CH3)2SnF2 and (CH3)2SnCl2.

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概要

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• The Mössbauer absorption spectra of <SUP>119</SUP>Sn in single crystals of (CH<SUB>3</SUB>)<SUB>2</SUB>SnF<SUB>2</SUB> and (CH<SUB>3</SUB>)<SUB>2</SUB>SnCl<SUB>2</SUB> have been studied as a function of the orientation angles of the incident unpolarized gamma-ray beam with respect to the crystal axes, taking the absorber thickness effect into account. The analysis of the intensity ratios of the quadrupole splitting doublet yields the asymmetry parameter (η) and the orientation of the principal axes of the electric-field gradient with respect to the crystal axes. The value of η in (CH<SUB>3</SUB>)<SUB>2</SUB>SnCl<SUB>2</SUB> at 135 K was about 0.4, less than the value published previously. The sign of the <SUP>119</SUP>Sn quadrupole coupling constant (<I>e</I><SUP>2</SUP><I>qQ</I>) in these compounds was found to be positive, as has been reported before.

• 公益社団法人 日本化学会の論文

著者

• Boku Ryukei

  Department of Chemistry, Faculty of Science, Hiroshima University

関連論文

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• The Moessbauer effect of 119Sn in the dimethylbis(8-quinolinolato)tin(IV) single crystal.
• Moessbauer effect in fluorotrimethyltin(IV).
• Moessbauer absorption spectra of 119Sn in single crystals of (CH3)2SnF2 and (CH3)2SnCl2.

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