We report photoelectron imaging spectra of CuH- and CuH2- and their deuterated analogs. The CuH- photoelectron spectrum exhibits transitions to the ground (X-1 Sigma(+)) and lowest excited triplet (a(3)Sigma(+)) and singlet (A(1)Sigma(+)) states, with EA(CuH) 0.444(6) eV. The photoelectron spectrum of linear X-1 Sigma(+)(g) HCuH- is dominated by a transition to the linear excited A(2)Sigma(+) state with a 2.853 eV binding energy. It is accompanied by an extended unresolved vibrational progression involving the bent CuH2 (XB2)-B-2 ground state. Ab initio calculations show a 0.255 eV energy difference between these two states allow determination of EA(CuH2), 2.60(5) eV. (C) 2007 Elsevier B.V. All rights reserved.