Dye laser circular dichroism and absorption of the optically active Na3(Nd( C4H4O5)3]·2NaClO4·6H2O single crystal

✍ Scribed by Martin Vala; Deb Narayan Nath; Mihir Chowdhury; Andrzej Wierzbicki; Asok Chandra Sen

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 602 KB
• Volume: 134
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(87)87203-2

✦ Synopsis

A cw dye laser circular dichroism (CD)/absorption apparatus is described and applied to the measurement of an optically active rare earth-organic ligand single crystal. The Nd3+ tris(diglycolate) complex in the Na3[Nd(C4H405)3] .2NaC104.6Hz0 crystal has been investigated from 12 to 300 K. Absorption spectra at 300 K reveal hot bands from whose positions the crystalfield-split components of the 419/Z ground state are deduced. These values are confirmed from the temperature dependence of the peak intensity of the 17184 cm-' circular dichroism band. The '& state crystal field components are at 0,20, 200, 320 and 450 cm-'. A weak electron-phonon coupling exists between the Nd3+ ton and the crystal lattice modes.