| A wide variety of phanes have been investigated so far. In particular, pyridinophaneshave been the most widely used in supermolecular chemistry. Because, in addition tohydrophobic interaction and hydrogen bond, constituted pyridine rings can form acoordinate bonding to construct a complexes structure. So, pyridinophane has been oneof phanes which are widely used in coordination chemistry. Open-chain pyridine lindscan form self-organized three-dimensional cage complexes.The building of coordinate chemistry plays a very important role in organicchemistry and inorganic chemistry. J. M. Lehn who is one of founders aboutsupermolecular chemistry said supermolecular chemistry was coordinate chemistrywhich is extended. supermolecular chemistry broke out range of covalent bond ofcoordinate chemistry, and constituted more complex, more functionality, more melodic,more intention excessive molecule system.In this thesis, we synthesize 2,11-dithia[3.3](3,5)pyridinophane which is not repoetedby two steps from 3,5-lutidine, then synthesize complexes with MTO. The crystallinestructure of complexes has been determined by 1H NMR and X-Ray diffraction. weobserve that pyridinophanes of the S bridgesuse show the boat-boat stable conformationby by X-Ray diffraction .Also, two adjacent S atoms and adjacent N atoms in2,11-dithia[3.3](3,5)pyridinophane have interaction, and two adjacent MTO moleculeshave interaction, too.At the same time, we testify the peaks of 2,11-dithia[3.3](3,5) pyridinophane havenot been changed at -90℃ in solution because the barrier between the syn isomers andthe anti isomers of 2,11-dithia[3.3](3,5)pyridinophane is very small.The conformational changes of 2,11-dithia[3.3](3,5) pyridinophane is studied by VT1H NMR spectrum in solution, and testify the crystalline structure of complexes byX-Ray diffraction, also extend the knowledge of structure and physical property ofpyridinophanes and complexes, and supply the theory for further developing itsapplication . |
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