Self-assembled supramolecular architecture with alternating porphyrin and phthalocyanine, bonded by hydrogen bonding and π-π stacking

摘要

5,10, 15, 20-tetraphenyl porphyrinato manganese (III) (MnTPP) ligated by THF in opposite axial direc?tions and a sixcoordinate phthalocyaninato cobalt (II) (CoPc) with l-phenyl-lH-tetrazole-5-thiol (HL) molecules as axial ligands were self-assembled in a mixed solution of tetrahydrofuran and acetone (v/ v = 1:1) to form a hydrogen bonding "polymer" alternated with porphyrin (Por) and phthalocyanine (Pc) molecules, MnTPP(THF)_2CoPc(L)_2(1). The hydrogen bonding interaction was contributed by nitrogen [in the axial ligand (L~-) of phthalocyanine] and hydrogen atom (in a peripheral phenyl around the porphyrin ring). This hydrogen bonding "polymer" was also enhanced by π-π stacking of the tetrazole in L- with both TPP and Pc macrocycles. These polymer chains were constructed into their three-dimension (3D) architecture only by Van der Waal's attractions. Crystal data for 1 indicate a triclnic system of P-1 Unit cell: a = 11.3932(8) A, b = 12.6462(9) A, c = 14.4939(11) A, α = 91.1970(10)°, β = 95.5050(10)°, γ = 90.7200(10)°, and with cell volume of 2078.0(3) A~3.