Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Luminescence, Excitation and Far-infrared Spectroscopy of cis-$\alpha$-Dichlorotriethyleneteraminechromium(III) Chloride

  • Published : 1998.05.20
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Abstract

The 77 K luminescence and excitation spectra, and 298 K infrared and absorption spectra of $cis-{\Alpha}-[Cr(trien)Cl_2]Cl{\cdot}H_2O$ (trien=triethylenetetramine) have been measured. Ligand field electronic transitions due to spin-allowed and spin-forbidden are assigned. The zero-phonon line in the excitation spectrum splits into two components by $198\; cm^{-1}$, and the large $^2E_g$ splitting can be reproduced by the modern ligand field theory. It is confirmed that nitrogen atoms of the trien ligand have a strong σ-donor character, but chloride ligand has weak σ- and π -donor properties toward chromium(III) ion.

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References

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