(NH4)3[B(OH)3]2(COOH)3: a graphite-like UV nonlinear optical material with a large birefringence via structural optimization.

(NH4)3[B(OH)3]2(COOH)3: a graphite-like UV nonlinear optical material with a large birefringence via structural optimization.
Chem Commun (Camb). 2020 Jul 28;:
Authors: Deng Y, Wang L, Ge Y, Huang L, Gao D, Bi J, Zou G
Abstract
A novel noncentrosymmetric (NCS) metal-free formic-borate, (NH4)3[B(OH)3]2(COOH)3, has been discovered, which exhibits an infrequent graphite-like structure. The alliance of two types of π-conjugated planar anions BO33- and COOH- produced an optimized layered structure to maximize the anisotropic polarizability, resulting in an extremely large birefringence (0.156@546 nm), larger than that of the classical commercial UV birefringent material α-BBO (0.122@546 nm). This strategy that structural optimization could enhance birefringence will guide the discovery of large birefringence materials, especially in the UV region.
PMID: 32720953 [PubMed - as supplied by publisher]

Source: Chemical Communications - July 27, 2020 Category: Chemistry Authors: Deng Y, Wang L, Ge Y, Huang L, Gao D, Bi J, Zou G Tags: Chem Commun (Camb) Source Type: research