The solvothermal reaction of CuCl with R-(-)-1-allyl-3-methylpiperazine at 70 ℃ gives one-dimensional chain Cu-coordination polymer through olefin moiety binding to Cu atoms formulated as Cu(C8H16N2)Cl. It is interesting to note that through Cu2Cl2 dimer unit 1 results in a supramolecular 3-dimensional coordination polymer. Powdered sample measurement of 1 reveals that 1 is second-harmonic generation (SHG) active compound. Crystal parameters for 1, space group P212121, a=0.763 1(9) nm, b=0.891 0(10) nm, c=1.494 6(17) nm, α=90°, β=90°, γ=90°, V=1.016(2) nm3, Z=2, M=478.44, Dc=1.564 Mg·m-3. CCDC: 650193.
