By One-dimensional To Multi-dimensional Two-photon Polymerization Initiator Design, Synthesis, Characterization And Properties

Based on the detailed investigation of a great of related literatures, I reviewed that strong two photon absorbance (TPA) materials which have tremendous potential application. A series of compounds from one-dimension to multidimension having strong TPA effect were synthesized. Four new single crystals had been determined. The compounds were characterized by modern analysis method such as Elemental analyses, IR, 1HNMR, Electron spray mass spectra and single crystal X-ray diffraction determinatin.1. Based on the detailed investigation of a great of related literatures, strong two photon absorbance (TPA) materials have tremendous potential application.2. Bipyridine derivants were firstly synthesized by phosphonate solid-state reaction. Solvatochromic effect of all compounds were systematically studied by fluorescent spectra (solid fluorescence and liquid fluorescence), and quantum yield in various solvents was calculated. Two photon fluorescent properties were studied and TPA cross sections 8 were studied by referring to TPA fluorescence. Bipyridine derivants were firstly used as initiators in polymer. The photopolymerization mechanisms were explained by theory calculation.3. Novel structural coordination polymers have solid fluorescence. Their solid fluorescence has a bathochromic band shift of 40nm. Single crystal structure characteristic was described.4. Five arborization molecules were synthesized. Single fluorescence properties and TPA properties were systematically studied. Donor substituting groups made arborization molecules have strong two photon fluorescence . Their TPA cross sections 8 were 100GM larger than one-dimension compounds.