C-H center dot center dot center dot F hydrogen-bonded assembly of Ni(II) and Cu(II) complexes generate 3D supramolecular frameworks

摘要

Syntheses and X-ray structural characterizations of two new complexes [Ni(imi)(6)](pfbz)(2) (1) and Cu(imi)(2) (pfbz) 2 (2) (imi = imidazole, pfbz = pentafluorobenzo ate) are reported. The first complex crystallizes in the triclinic space group P-1 with the crystal cell parameters a = 9.180(2) angstrom, b = 9.742(3) angstrom, c = 11.466(3) angstrom, alpha = 76.947(18)degrees, beta = 80.629(18)degrees, gamma = 78.043(19)degrees, V = 970.0(4) angstrom(3) and Z = 1. The second complex crystallizes in the triclinic space group P-1 with the crystal cell parameters a = 7.3250(12) angstrom, b = 7.6685(10) angstrom, c = 10.888(4) angstrom, alpha = 92.80(2)degrees, beta = 101.92(2)degrees, gamma = 115.038(12)degrees, V = 535.7(2) angstrom(3) and Z = 1. Examination of the structures shows that both complexes form three-dimensional hydrogen bonded networks in which C-H center dot center dot center dot F hydrogen bonds play significant roles.