GRAPHICAL ABSTRACT
![](/cms/asset/6d43bf62-b39f-4397-b751-35e5d476004e/gpss_a_991823_uf0001_b.gif)
Abstract
The first examples of macrocyclic tetracoordinated Cu(I) complexes were obtained by the interaction of 1,8-diisopropyl-3,6,10,13-tetraphenyl-1,8-diaza-3,6,10,13-tetraphosphacyclotetradecane with Cu(I) derivatives. Their structure and behavior in solution are studied.