The nature of the chemical bond in mercury(I) iodide has been studied by using the Miissbauer effect in lzrI at 83 K. The sign of the quadrupole coupling constant is negative as expected from the crystal structure, but the unexpectedly small value (-764 hlHz) is explained to be due to then bond char
Mössbauer effect of 129I in the bridged and isolated forms of mercury (II) iodide
✍ Scribed by Hiroshi Sakai; Yutaka Maeda; Sumio Ichiba; Hisao Negita
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 286 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
The Mijssbauer effect of the 27.8 keV transition in "'1 IWS observed to investigate the electronic structure of mercury (II) iodide in the bridged and isolated forms. From hlSssbnuer parameters such as the isomer shift, the qundrupole coupling constant, and the asymmetry pnrameter, the electronic confipurntions of iodine were derived lo be 5s'.975ps.27 and 5s2sp5.52 for the bridged and isolated forms, respectively. The s-character in rhe iodine bond MU found to be 4 c/o and the quodrupole coupling constant was positive for the bridged form. On the other hand, the quadrupole coupling constant was negative and its absolute value was larger for rhe isolated form. Based on these results, the bond character of iodine in mercury (II) iodide was discussed.
📜 SIMILAR VOLUMES
Magnetic suswptibilities down to 1.2"K and 57Fe Miissbauer spectra at 42°K are reported on [Fe(pten)2 OR] \* 5H20. The results are consistent with a 3Az(~z~2~~)ground state characterized by a zero-field splitting of D = 4.150 cm-' into an upper !&Ys= +l) and a lower 10) level andg = 2.80. In reasona