Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Spectroscopic Properties and Ligand Field Analysis of Tris[($\pm$)-trans-1,2-cyclohexanediamine]chromium(Ⅲ) Chloride$^1$

  • Jong-Ha Choi (Department of Chemistry, Andon National University)
  • Published : 1994.02.20
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Abstract

The low temperature luminescence and excitation, room-temperature UV-visible and infrared spectra of [Cr(${\pm})chxn_3]Cl_3$ (chxn=trans-1,2-cyclohexanediamine) have been measured. It is found that the zero-phonon line in the excitation spectrum splits into two components by $47\;cm^{-1}$. The eight electronic transitions due to spin-allowed and spin-forbidden are assigned. As expected, nitrogen atoms of chxn ligand have strong ${\sigma}-donor $properties toward chromium(Ⅲ). The positions and splittings of sharp-line transitions are analyzed as a function of the Cartesian bite (${\alpha}$) and twist (${\beta}$) angles to predict the metal-ligand geometry.

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References

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