Electronic Absorption Spectrum of LiMnO4·3H2O in LiClO4·3H2O

15 September 1971

journal article
research article
Published by AIP Publishing in The Journal of Chemical Physics

Vol. 55 (6) , 2985-2989
https://doi.org/10.1063/1.1676525

Abstract

Polarized absorption spectra of single crystals of

{LiClO}_{4} ·3 H_{2} O / {LiMnO}_{4} ·3 H_{2} O

have been measured at 4.2°K. The 5200‐Å band of

{MnO}_{4}^{-}

has been identified as a

^{1} T_{2} \leftarrow^{1} A_{1}

transition; the 3600‐Å band has been identified as

^{1} T_{1} \leftarrow^{1} A_{1}

or, just possibly,

^{1} {E←}^{1} A_{1}

; and the 3000‐Å band has been identified as

^{1} T_{2} \leftarrow^{1} A_{1}

. A brief discussion of two higher energy transitions is also provided. The site splitting of the ¹A₁ and ¹E states, which are produced from the T₂ state upon reduction of symmetry from T_d to C_3v, is large

( ∼500 {cm}^{−1})

. Vibronic activity is observed in the

5200 ‐ Å^{1} T_{2} \leftarrow^{1} A_{1}

transition and is discussed.

Keywords

This publication has 8 references indexed in Scilit:

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