Issue 22, 2022

APb2(C7H3NO4)2I (A = K, Rb, Cs): rare stable nonlinear optical crystals with second-harmonic generation response and highly distorted lead core coordination polyhedra

Abstract

The development of nonlinear optical (NLO) crystals with excellent performance has been the goal of numerous researchers. Herein, iodide has been successfully introduced into lead 2,6-pyridinedicarboxylates to rationally synthesize a series of new stable NLO crystals, APb2(C7H3NO4)2I (A = K, Rb, Cs), via a mild mix-solvothermal method. It is interesting to note that APb2(C7H3NO4)2I (A = K, Rb, Cs) has a 3D noncentrosymmetric cubic framework composed of highly distorted [PbNO5] and [PbNO4I] coordination polyhedra. Remarkably, KPb2(C7H3NO4)2I exhibits a strong second-harmonic generation (SHG) response about 3.4 times that of KDP and a high thermal stability above 300 °C under an air atmosphere. This work provides an effective strategy for the further exploration of high-performance NLO crystals.

Graphical abstract: APb2(C7H3NO4)2I (A = K, Rb, Cs): rare stable nonlinear optical crystals with second-harmonic generation response and highly distorted lead core coordination polyhedra

Supplementary files

Article information

Article type
Research Article
Submitted
28 Jul 2022
Accepted
11 Sep 2022
First published
13 Sep 2022

Inorg. Chem. Front., 2022,9, 5783-5787

APb2(C7H3NO4)2I (A = K, Rb, Cs): rare stable nonlinear optical crystals with second-harmonic generation response and highly distorted lead core coordination polyhedra

Z. Geng, Z. Zhou, H. Tang, W. Bao, R. Fu and X. Wu, Inorg. Chem. Front., 2022, 9, 5783 DOI: 10.1039/D2QI01638A

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