“…The paramagnetism of Cu 2+ ion (S = ½) can provide deep insights into the structural dynamics and the nature of adsorption centers in mechanistic studies [25][26][27], by means of physical methods, and allows us to achieve an extremely strong magnetic exchange in its polymeric complexes [28,29]. In this work, a new MOCP with the formula [Cu 2 (Hchdc) 2 (chdc)] n (I), containing differently charged anions of trans-1,4-cyclohexanedicarboxylic acid (H 2 chdc), being also readily available but mildly spread in coordination chemistry [30], as ligands, was structurally characterized. A (µ 3 -κ 1 :κ 2 ) coordination of the carboxylates and hydrogen bonds between them and free carboxylic groups induce a formation of a corrugated layered structure based on 1D chains of magnetoactive Cu 2+ ions.…”