Structural Characterization of Two Copper(II) Bishexafluoroacetylacetonate Complexes with N-Donor Ligands
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The synthesis and characterization of two copper complexes, Cu(hfac)2(L1)2 (1) and Cu(hfac)2(L2)2 (2) (L1 = (E)-3-(4-(1H-benzo[d]imidazol-1-yl)phenyl)-1-([1,1′-biphenyl]-4-yl)prop-2-en-1-one, L2 = (E)-3-(4-(1H-imidazol-1-yl)phenyl)-1-phenylprop-2-en-1-one) are reported. These complexes are characterized by elemental analyses, IR and single crystal X-ray diffraction analyses. The Cu(II) ions of 1 and 2 are both in a distorted octahedral environment with four O atoms of the hfac ligands and two N atoms from two L ligands. The supramolecular structures of 1 and 2 are stabilized by hydrogen bonds between the adjacent molecules. In addition, F···F interactions and π–π stacking interactions are also responsible for the stability of the structure in complex 2.
Keywordssynthesis supramolecular arrangements copper complex crystal structure coordination compound hydrogen bond
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