GRAPHICAL ABSTRACT
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Abstract
Novel cyclic phosphino amino pyridines and their mono- and binuclear Ni(II), Cu(I), and Au(I) complexes have been obtained. It has been shown that catalytic activity of the nickel-(II) complexes in electrochemical hydrogen evolution is comparable to the best catalytic systems described to date. Novel “butterfly” type copper(I) complexes show a phosphorescent nature of emission with a lifetimes in a microsecond domain.