This book explores the development of hybrid phosphates as multifunctional materials bridging structural chemistry, drug design, and optics. Beginning with a comprehensive classification of organic-inorganic hybrids, it introduces the principles of crystallography and their role in understanding structure-property relationships. Detailed case studies highlight the synthesis and characterization of organophosphate single crystals, including advanced techniques such as SCXRD, SEM/EDX, Hirshfeld surface analysis, and spectroscopic methods. Computational approaches, molecular orbital analysis,...