Synthesis, crystal structure, and third-order non-linear optical properties of a new Cd(II) polymer constructed from pyrazine-2-carboxylic acid

• Published in: Journal of coordination chemistry 2014-08, Vol.67 (15), p.2630-2642
• Main Authors: Li, Yong, Pan, Wei-Cheng, Hong, Peng-Zhi, Zhang, Zhao-Xia, Li, Ke-Chang
• Format: Article
• Language: English
• Subjects: Cadmium; Cadmium(II) compound; Crystal structure; Diffraction; Infrared radiation; Nonlinearity; Optical properties; Polymer; Spectra; Structure; Synthesis; Third-order NLO behavior; Three dimensional; X-rays
• ISSN: 0095-8972; 1029-0389
• DOI: 10.1080/00958972.2014.950572

A new cadmium(II) pyrazine-2-carboxylate coordination polymer, {[Cd(L)(H 2 O) 2 (SO 4 ) 0.5 ] 2 ·H 2 O} n (1) (HL = pyrazine-2-carboxylic acid), has been synthesized by low-temperature solid-state reaction. Single-crystal X-ray analyses reveal that 1 possesses a 3-D framework structure. The polymer 1 was characterized by elemental analyses, thermogravimetric analyses, X-ray powder diffraction analyses, IR spectra, and UV-visible spectra. The third-order non-linear optical properties were also investigated and they exhibit nice non-linear absorption and self-defocusing performance with modulus of the hyperpolarizability (γ) 1.30 × 10 −30 esu for 1 in a 2.01 × 10 −4  M dm −3 DMF solution. A new cadmium(II) pyrazine-2-carboxylate coordination polymer, {[Cd(L)(H 2 O) 2 (SO 4 ) 0.5 ] 2 ·H 2 O} n (HL = pyrazine-2-carboxylic acid), has been synthesized by low-temperature solid-state reaction. Single-crystal X-ray analyses reveal that compound possesses a 3-D framework structure. The third-order non-linear optical properties were also investigated and they exhibit nice non-linear absorption and self-defocusing performance with modulus of the hyperpolarizability (γ) 1.30 × 10 −30 esu.