Abstract
The troponoid dimer extended with 9-dodecyl-1,8-diethynylanthracene is a interesting molecule as a twisted .pi. conjugated system. Such a molecule can be regarded as a potential chromophore or fluorophore. In addition, the molecule can easily produce transition metal (_II_) complex as a new type supramolecular structure. Four monoalkylamino derivatives (alkyl= ethyl, propyl, pentyl, and dodecyl) and hydroxyl derivative, as such a troponoid dimer, have been synthesized. Furthermore, the optical properties of the troponoid dimers and their transition metal (_II_) complexes were also evaluated. It has been shown that 2:2 complexes generated from the troponoid dimer and the bivalent copper cation, by the measurement result of the MALDI-TOF-MS spectrum. The result of the X-ray crystal structure analysis showed that the 2:2 complex has been a box type molecule. We discuss about the molecular structure of the title complexes and their properties in a solid state.
