Thermodynamic parameters of N-(p-n-alkoxybenzylidene)-p-n-(butyloxyanilines), (nO.O4) liquid crystal compounds - A dilatometric study

► This manuscript presents the estimation of the different thermodynamic parameters, acoustic nonlinearity parameter, B/A etc., ► Various thermodynamic parameters from volume expansion coefficient, α for a number of nO.O4 compounds is estimated. ► The inter molecular free length (Lf) and molecular radius (Mr) are also computed from density, and refractive index for these nO.O4 compounds. ► The nature of Lf and Mr are analyzed and discussed.