HPLC of Formula: 18583-60-3. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: Potassiumtris(1-pyrazolyl)borohydride, is researched, Molecular C9H10BKN6, CAS is 18583-60-3, about Phosphorescent 2-, 3- and 4-coordinate cyclic (alkyl)(amino)carbene (CAAC) Cu(I) complexes. Author is Hamze, Rasha; Jazzar, Rodolphe; Soleilhavoup, Michele; Djurovich, Peter I.; Bertrand, Guy; Thompson, Mark E..
The photophys. properties of several Cu(I) complexes coordinated with cyclic (alkyl)(amino)carbene (CAAC) ligands were examined All the compounds were found to be phosphorescent, regardless of whether they are 2-, 3- or 4-coordinated. Aggregate and excimer emission were observed from 2-coordinate CAAC-CuCl derivatives in methylcyclohexane solution Emission from the complex 4-coordinated with a trispyrazolylborate ligand is red-shifted with respect to both the chloro-derivative and an analogous complex with an NHC ligand.
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Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics