| Popis: |
The self-assembly of glycyl-L-leucine, Cu(NO3)2·3H2O and 4, 4′-bipyridine resulted in the tetranuclear-based metal-dipeptide supramolecular framework [Cu4(C8H14N2O3)4(H2O)2(C10H8N2)2]·(C10H8N2)·13H2O (1). In the structure, the 4, 4′-bipyridine-bridged tetranuclear complex of CuII-glycyl-L-leucine interacts with each other to form a 1D hydrogen-bonded chain including uncoordinated 4, 4′-bipyridine and an interesting water chain in different channels. Under similar reaction conditions, racemic glycyl-D,L-leucine gave rise to the centrosymmetric dinuclear complex [Cu2(C8H14N2O3)2(C10H8N2)]·2H2O (2), which is linked into a 2D hydrogen-bonded structure without 4, 4′-bipyridine included. |
