Through a diffusion reaction, cuprous bromide, triphenyl-phosphane and 1,3-bis-(pyridin-4-yl)propane (bpp) were self-assembled to form the one-dimensional title compound, [Cu(2)Br(2)(C(13)H(14)N(2))(C(18)H(15)P)(2)](n). Each Cu(I) atom is coordinated by two Br atoms, one P atom from a triphenyl-phosphane ligand and one N atom from a bpp mol-ecule in a distorted tetra-hedral geometry. Two μ(2)-Br bridges connect two [Cu(PPh(3))](+) units to form neutral [CuBr(PPh(3))](2) dimers, which are linked by the flexible bridging bpp ligands to form a one-dimensional chain structure parallel to the c axis. The dihedral angle between the pyridine rings of the bpp ligand is 34.59 (14)°.