Synthesis, growth, optical and anisotropic mechanical behaviour of organic nonlinear optical imidazolium 2-chloro-4-nitrobenzoate single crystalsVaradharajan Krishnakumar, Jeyaram Jayaprakash, Singaram Boobas and Muniraj KomathiEur. Phys. J. Plus, 131 10 (2016) 375DOI: https://doi.org/10.1140/epjp/i2016-16375-0