Two pairs of chiral Yb<sup>III</sup> enantiomers presenting distinct NIR luminescence and circularly polarized luminescence performances with giant differences in second-harmonic generation responses
Xiaodi Du, Zhiqiang Zhang, Congli Gao, Fengcai Li, Xi-Li Li
Abstract
ions are eight and seven-coordinated, respectively. They not only feature different molecular structures but also present distinct linear and nonlinear optical performances. Chiral mononuclear D-1 has better near infrared photo-luminescence (NIR-PL) and circularly polarized luminescence (CPL) performances than chiral cocrystal D-2. More remarkably, D-1/L-1 show large second-harmonic generation (SHG) responses (up to 1.25/1.28 × KDP) 18/16 times those of D-2/L-2 (0.07/0.08 × KDP). In addition, D-2/L-2 represent the first examples of lanthanide cocrystal complexes with NIR-PL, NIR-CPL and SHG properties.
Topics & Concepts
LuminescenceEnantiomerLanthanideIonChirality (physics)dBmMaterials scienceStereochemistryCrystallographyChemistryOptoelectronicsPhysicsOrganic chemistryChiral symmetry breakingQuantum mechanicsQuarkNambu–Jona-Lasinio modelCMOSAmplifierMagnetism in coordination complexesLanthanide and Transition Metal ComplexesSynthesis and Properties of Aromatic Compounds