A chiral C3-symmetric hexanuclear triangular-prismatic copper(ii) cluster derived from a highly modular dipeptidic N,N′-terephthaloyl-bis(S-aminocarboxylato) ligand

Abstract

The enantiomeric dipeptidic ligand N,N′-terephthaloyl-bis(L-phenylalaninato) (TBPhe2–) reacts with copper(II) acetate in ethanol under the formation of the hexanuclear double-layered triangular-prismatic cluster [Cu2(μ4-TBPhe-κO : κO′ : κO″ : κO′″)2(EtOH)(H2O)]3·∼28(H2O/0.33EtOH) with C3-symmetry, homochiral conformer assembly in the crystal and strong antiferromagnetic coupling within the Cu2(O2CR)4 paddle-wheel unit (J = −214 K).