M. Teresa Azcondo, Loreto Ballester, Stephane Golhen, Angel Gutierrez, Lahcene Ouahab, Slav Yartsev and Pierre Delhaes
Three different supramolecular architectures corresponding to [M([9]aneN3)2](TCNQ)2, (M=NiII1 or CuII2, [9]aneN3=1,4,7-triazacyclononane, TCNQ=7,7,8,8-tetracyanoquinodimethane), [Cu([9]aneN3)2](TCNQ)33 and [Cu([9]aneN3)2](TCNQF4)2, 4 (TCNQF4=2,3,5,6-tetrafluoro-7,7,8,8,-tetracyanoquinodimethane), have been prepared and crystallographically characterized: 1, triclinic, P1, a=8.6488(9), b=8.919(3), c=11.316(2) Å, α=82.06(2), β=74.331(10), γ=85.71(2)°, Z=1; 2, triclinic, P1, a=8.6806(11), b=8.915(5), c=11.348(2) Å, α=82.03(3), β=74.109(14), γ=84.95(2)°, Z=1; 3, triclinic, P1, a=8.350(2), b=9.884(4), c=14.369(4) Å, α=74.10(2), β=89.01(2), γ=69.11(2)°, Z=1; 4, triclinic, P1, a=15.476(5), b=16.146(4), c=16.441(4) Å, α=77.15(2), β=78.04(3), γ=85.43(3)°, Z=2. Compounds 1 and 2 are formed by dimeric (TCNQ)22– units and 4 by three different dimeric (TCNQF4)22– units. Compound 3 is formed by isolated [Cu([9]aneN3)2]2+ groups and trimeric (TCNQ)32– units. The electrical, optical and magnetic properties of the four new compounds have been interpreted on the basis of their supramolecular architectures.