AbstractSome 1:1 and 1:2 adducts of cobalt(II), nickel(II) and copper(II) chloroacetates with quinolineN‐oxide have been isolated by the interaction of the appropriate metal chloroacetate with quinolineN‐oxide (QuinNo). The complexes isolated are of 1:1 stoichiometry of formula [M(CH3_xClxCOO)2QuinNO] (when M=Co(II), Ni(II); X=1,2 and 3 and when M=Cu(II), X=l and 2) except copper(II) trichloroacetate which yields an adduct of 1:2 stoichiometry of formula[Cu(CCI3COO)2(QuinNO)2]. The adducts isolated are soluble in common organic solve