On the magnetic coupling in asymmetric bridged Cu(II) dinuclear complexes: The influence of substitutions on the carboxylato group

► Experimental characterisation of the CF3 substituted carboxylato/alkoxo bridged Cu(II) dinuclear complex. ► Quantification of the substituent effect on the spin coupling. ► Quantification of the counter-complementarity of alkoxo and carboxylato bridges.