The synthesis and structure of a one-dimensional polymer of formula [Cu-3(d
pphp)(2)(MeCN)(1.7)(CH2Cl2)(0.3)](ClO4)(n) is reported (where dpphp = 6-dip
henylphosphino-2-pyridonate). There are three distinct copper(I) sites with
in the polymer. Two of these sites are four-coordinate, bound to one P- and
two O-atoms and a solvate molecule; the third site is bound only to two N-
atoms. The Cu*Cu distances within the polymer are around 2.8 Angstrom. The
compound is luminescent in the solid-state.