| In this paper, six novle coordination complexes containing four acyclic crown ethers(see Chart 1): H2L1,H2L2,H4L3,H2L4 which have never been reported previously were synthesi- zed. six novel compounds : [Co(L1)(HL1)]2·C2H5OH·Cl (1), [Co3(L2)2(OAc)2][Co3(L2)2(EtO)2]·2C2H5OH (2), [Zn3(L2)2][Zn3(L2)2(EtO)2]·2C2H5OH·H2O (3), [Cu(L4)]·C2H5OH (4), [Ni(L4)]·2CH3OH (5), [Cu5(L3)2]·C2H5OH (6).The crystal structures have been determined by single-crystal X-ray diffraction. Compound 1 displays one-dimensional (1D) chain structures because ofπ-πinteraction. Compounds 2 and 3 have two independent trinuclears structure in which three Co atoms are linked by two diaza cyclopentane rings and two acetates. Compounds 4 and 5 are made up of acetate (Cu , Ni) and L42- without five-membered ring. Compound 6 is built up by two L34-and five Cu ions, in which molecules interact each other, a hole exist in a axis. Thermogravimetric analyses (TGA) for compounds 2 and 3 are discussed. The luminescent properties for 3 are also discussed in detail. |
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