[C(NH2)3][B(C2O2H4)2]: An Organic–Inorganic Hybrid
Borate Containing Nonlinear-Optical Active Unit [B(C2O2H4)2]− with Solar-Blind-Region
Optical Nonlinearity
posted on 2024-02-28, 18:35authored byJia-Xin Wang, Shu-Fang Li, Meng-Meng Ren, Meng-Han Lv, Ru-Ling Tang, Jin Chen, Hongbo Huang, Bingbing Zhang, Dong Yan
We herein report an unprecedented organic–inorganic
hybrid
borate incorporating a novel nonlinear-optical (NLO) active unit,
namely, [C(NH2)3][B(C2O2H4)2]. The novel NLO active unit was derived
from the condensation reaction between two glycol molecules and one
(BO4)5– group. The title compound exhibits
a moderate second-harmonic-generation effect (0.7 × KDP), a significant
band gap (5.76 eV), and a suitable birefringence (0.078 at 550 nm).
The optical properties are determined by the synergistic interaction
between the C(NH2)3+ cation and the
[B(C2O2H4)2]− group, as indicated by theoretical calculations.