In homogeneous catalysis, catalysts are in the same phase as the reactants. Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 857890-39-2, Name is Lenvatinib Mesylate, molecular formula is C22H23ClN4O7S, belongs to quinoxaline compound, is a common compound. In a patnet, author is Huang, Ting-Hong, once mentioned the new application about 857890-39-2, COA of Formula: C22H23ClN4O7S.
Structures, electronic and luminescent properties of Cu(I)-quinoline complex at different temperatures and its application to red light-emitting diode
A mononuclear Cu(I) complex, Cu(dppb)(2,2′-biquinoline)]BF4(1) (dppb = 1, 2-bis(diphenyl phosphino)benzene), has been synthesized and characterized at 100 K, 150 K, 200 K, 250 K and 298 K. The structural analysis reveals that the rise of temperature from 100 K to 298 K leads to the increasement of molecular size, such as the unit-cell parameters and volume, and the change of bond lengths, bond angles, C-H center dot center dot center dot pi and pi center dot center dot center dot pi interactions. DFT calculations indicate that the HOMO -> LUMO energy gap and Mulliken atomic charges are changed by the increase of temperature from 100 K to 298 K, and the component of the HOMOs and LUMOs are barely changed at 100-298 K, which is in accordance with the variation of DOS and PDOS at different temperatures. Meanwhile, the surprising broad blue-yellow excitation bands are observed at 100-298 K and the maximum emission is increasing with the blue shift from 735 nm at 100 K to 685 nm at 298 K. Furthermore, the emission decay time of complex 1 reaches 3 mu s at 298 K. In addition, copper(I) complex 1 is used to fabricate the monochromatic LED, which emits a red light.
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Reference:
Quinoline – Wikipedia,
,Quinoline | C9H7N – PubChem