(Nitrito-O,O')bis(triphenylphosphine)-copper(I), (PPh3)2Cu(NO2-O,O').

Symmetric binding of nitrite via both O atoms to CuI [Cu--O = 2.191 (4) A] was observed. The copper coordination geometry is significantly distorted from tetrahedral, as evidenced by the angles P--Cu--P [127.75 (7) degrees] and O--Cu--O [56.7 (2) degrees].