Phase behaviours, spectroscopic, and DFT analysis of a complementary hydrogen bond liquid crystal complex with enhanced NLO propertiesS. Kavitha, M. Saravanakumar, A. Kiranisha, V. N. Vijayakumar, T. Chitravel and Sujay ChakravartyEur. Phys. J. Spec. Top., (2026) 1-18DOI: https://doi.org/10.1140/epjs/s11734-026-02176-3