DMSO. Interestingly, 4 showed a rapid hypochromatic shift in emission ascribed to the deprotonation and the concomitant formation of a 4–metal complex upon the addition of Zn2+ ions, instead of the bathochromic shift and emission enhancement attributed to the SO42−-involved hydrogen-bonding interaction for Ni2+, Li+, Mg2+, and Na+ ions at ratios below 1:1 in DMSO. The observed sensing process of sulfate
Crystal Engineering of Room Temperature Phosphorescence in Organic Solids
作者:Ehsan Hamzehpoor、Dmitrii F. Perepichka
DOI:10.1002/anie.201913393
日期:2020.6.15
Despite strong π‐interactions, aggregation‐induced quenching and triplet–triplet annihilation are avoided in HTANGO and TCTANGO which display efficient phosphorescence in the solidstate. To our knowledge, HTANGO with the solid‐state phosphorescence quantum yield of 42 % at room temperature is the most efficient phosphor composed of the 1st/2nd raw elements only.
Spontaneous assembly of a hydrogen-bonded tetrahedron
作者:Jason E. Field、Marianny Y. Combariza、Richard W. Vachet、D. Venkataraman
DOI:10.1039/b207026j
日期:2002.9.23
Triphenylamine ortho-tricarboxylic acid (1) has been synthesized and the crystal structure reported. This molecule is shown to spontaneously self-assemble into a hydrogen-bonded tetrahedron. Furthermore, Electrospray Ionization Mass Spectroscopy shows evidence for the stability of such aggregates from an ethanol/water solution.