A new aromatic organometallic nonlinear optical crystal: [Bis-4-nitropyridine-N-oxide cadmium chloride]

• Published in: Materials research bulletin Vol. 29; no. 1; pp. 73 - 79
• Main Authors: Xu, Dong, Liu, Ming-guo, Hou, Wen-bo, Yuan, Duo-rong, Jiang, Min-hua, Ren, Quan, Chai, Bruce H.C.
• Format: Journal Article
• Language: English
• Published: London Elsevier Ltd 1994; Amsterdam Elsevier Science
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of bulk materials and thin films; Physics; cadmium; chloride; organometallic crystal; nitropyridine; Absorption spectra; Experimental study; Nonlinear optics; Crystal structure
• ISSN: 0025-5408; 1873-4227
• DOI: 10.1016/0025-5408(94)90107-4

A new nonlinear optical crystal BPONCC [Bis-4-nitropyridine-N- oxide cadmium chloride, Cd(NO 2C 5H 4NO) 2Cl 2], as a derivative of 4-nitropyridine-N-oxide, is reported for the first time. Preliminary results show that its powder intensity is about 8.2 times higher than that of urea, and the transparency cut-off wavelength is almost same as that of 3-methyl-4-nitropyridine-N-oxide (POM), which is about 420nm. Its melting point is much higher than that of the other 4-nitropyridine-N-oxide derivatives. The crystal structure belongs to space group Fdd2 with cell parameters a = 11.644 A ̊ , b = 50.025 A ̊ , c = 3.808 A ̊ .