Spectroscopic and quantum chemical investigation of hexamethylenetetraminium 3, 5-dinitrobenzoate hemihydrate single crystals for optical limiting applications. - Saravanakumar, M.; Chandrasekaran, J.; Krishnakumar, M.; Babu, B.; Mohanraj, V.; Vinitha, G. (Journal of Materials Science: Materials in Electronics, 2022)