Abstract In a recent paper [(2017) Mol. Cryst. Liq. Cryst., 658, 186–197], Kumari et al. studied the optical, photoluminescence and dielectric properties of the benzoyl valine acentric crystal. The refractive index of the samples is calculated based on the reflectance spectra and obtained values were used to calculate other optical parameters such as the electric susceptibility, optical and electrical conductivity. It is shown in this comment that the authors have used a wrong approach to calculate the reflectance spectra of the samples and consequently, the mentioned optical parameters are incorrect.

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评论：“苯甲酰缬氨酸无心晶体的生长、光学、光致发光、介电、二阶和三阶非线性光学研究”[(2017) Mol. 水晶。液体。Cryst., 658, 186–197]

摘要在最近的一篇论文 [(2017) Mol. 水晶。液体。Cryst., 658, 186–197], Kumari 等。研究了苯甲酰缬氨酸无心晶体的光学、光致发光和介电特性。基于反射光谱计算样品的折射率，并且所得值用于计算其他光学参数，例如电磁化率、光学和电导率。在此评论中表明，作者使用了错误的方法来计算样品的反射光谱，因此，提到的光学参数是不正确的。