Photochemical [2+2] Polymerization of Metal-Organic Gels of Rigid and Angular Diene with Silver-Salts of Diverse Anions: Selective Dye-Sorption and Luminescence by Xerogels

Two similar type of dienes one is being rigid and other is flexible explored for their gel formation abilities with Ag(I) salts. The rigid and angular diene has shown an exceptional ability for gel formation with silver salts of nitrate, triflate, tetrafluoro borate and hexafluorophosphate. These metal-organic gels (MOGs) and their xerogels are found to have an excellent ability to undergo photochemical [2+2] polymerization reaction upon irradiation. The reactions were monitored and the products were characterized by 1H NMR and MALDI-TOF analyses. Further, the solid-state luminescence behaviour and selective dye-sorption of the gels has been explored before and after photo-polymerization reactions