物理化学学报 >> 1998, Vol. 14 >> Issue (04): 369-374.doi: 10.3866/PKU.WHXB19980417
朱培旺, 王传广, 王鹏, 叶成
Zhu Pei-Wang, Wang Chuan-Guang, Wang Peng, Ye Cheng
In This paper some problems, which should be noticed in the measurements of organic molecular first hyperpolarizability（β） by the solvatochromism , are discussed based on the results of the measurements for 11 compounds .The experiments indicate the at the selection of solvent used is the basis of the method to fit for use. The determination of the parameter a, which is the radius of a spherical cavity occupied by the molecules in the solutions, is the key to decide the reasonableness of the obtained results and the formula for a=1/2(l'+rv),has been suggested in which l is the molecular length of the nonlinear optical active part and can be obtained from values of bond lengths in literature, rv is the average spherical radius of used solvents.
Organic nonlinear optics,
Molecular first hyperpolarizability(β),
朱培旺, 王传广, 王鹏, 叶成. 溶剂化变色法测定有机分子β的若干问题[J]. 物理化学学报, 1998, 14(04): 369-374.
Zhu Pei-Wang, Wang Chuan-Guang, Wang Peng, Ye Cheng. Problems in Measurement of Organic Molecular β by the Solvatochromism[J]. Acta Phys. -Chim. Sin., 1998, 14(04): 369-374.
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