Circular dichroism spectrum of gadolinium diglycolate single crystal

Theory, calculation and observation of nonlinear optical activity in chiral molecules

“…The fluorescence was observed without any polarization discrimination; all the polarization discrimination was in the excitation. In a subsequent paper, Gunde et al 54 found that the ratio of differential two-photon absorption to average two-photon absorption was very similar in magnitude to the same ratio for one-photon CD reported by Kundu et al, 55 but the relative signs varied across the two-photon absorption spectrum. Comparison of their calculations with the measurements showed reasonable agreement for the magnitude of the ratios, but they were unable to correctly predict the sign.…”

“…where a 0 , b 0 and K are defined in eqn (55), CD = Da/L with L the path length through the sample, and the coefficient r was used to take into account geometric and reflectivity factors. They found for their sample that b 0 is negative at 470 nm.…”

Electronic State Structure and Optical Properties of Tb(oda)33- Complexes in Trigonal Na3[Tb(oda)3]·2NaClO4·6H2O Crystals

“…Optical-quality single crystals of Na 3 [Ln(oda) 3 ]·2NaClO 4 ·6H 2 O compounds are relatively easy to grow, and they have been used extensively in detailed studies of electronic state structure and optical processes in Ln(oda) 3 3- complexes. Among these complexes, the most thoroughly studied have been those of neodymium (Nd 3+ ), − samarium (Sm 3+ ), − europium (Eu 3+ ), − gadolinium (Gd 3+ ), − dysprosium (Dy 3+ ), holmium (Ho 3+ ), − and erbium (Er 3+ ). , Optical studies of the praseodymium (Pr 3+ ), terbium (Tb 3+ ), and thulium (Tm 3+ ) 32 complexes have also been reported, but without detailed analyses of energy-level structure.…”

Synthesis and X-ray Structure of the Mononuclear Nine-Coordinate Gadolinium(III) Hydrogen Oxydiacetate [Gd(C4H5O5)3]·C4H6O5·H2O

“…Current interest in new gadolinium(III) compounds derives in part from their potential applications as magnetic and/or optical probes. Studies of the interactions of trivalent lanthanides with the oxydiacetate dianion (oda = - O 2 CCH 2 OCH 2 CO 2 - ) have shown that complexes with 1:1, 1:2, and 1:3 metal-to-ligand ratios can occur in solution. , X-ray structural data are available for a number of lanthanide oxydiacetates with additional sodium−metal−ligand units.…”