Results
Title

Rb<sub>3</sub>VO(O<sub>2</sub>)<sub>2</sub>CO<sub>3</sub>: A Four‐in‐One Carbonatoperoxovanadate Exhibiting an Extremely Strong Second‐Harmonic Generation Response.

Authors

Zou, Guohong; Jo, Hongil; Lim, Seong‐Ji; You, Tae‐Soo; Ok, Kang Min

Abstract

Abstract: A nonlinear optical (NLO) carbonatoperoxovanadate, Rb3VO(O2)2CO3, was synthesized through a simple solution‐evaporation method in phase‐pure form. Single‐crystal X‐ray diffraction revealed that the structure of Rb3VO(O2)2CO3 consists of important noncentrosymmetric (NCS) chromophores, that is, π‐delocalized (CO3)2− groups, a second‐order Jahn–Teller (SOJT) distortive V5 cation, and π‐localized distorted O22− groups, as well as charge‐balancing polarizable Rb ions. The powder second‐harmonic generation (SHG) measurements indicated that Rb3VO(O2)2CO3 is phase‐matchable (Type I) and exhibits a remarkably strong SHG response circa 21.0 times that of potassium dihydrogen phosphate (KDP), which is the largest efficiency observed among carbonate NLO materials. First‐principles calculation analysis suggests that the extremely large SHG response of Rb3VO(O2)2CO3 is attributed to the synergistic effect of the cooperation of all the constituting NCS chromophores.

Subjects

RUBIDIUM compounds; CARBON compounds; SECOND harmonic generation; NONLINEAR optics; SOLUTION (Chemistry); EVAPORATION (Chemistry)

Publication

Angewandte Chemie, 2018, Vol 130, Issue 28, p8755

ISSN

0044-8249

Publication type

Academic Journal

DOI

10.1002/ange.201804354