| Summary: | 碩士 === 國立中正大學 === 化學研究所 === 92 === The research focus in this thesis is classified into three parts. The first part is to study the structure, spectroscopic and photophysical properties of the trinuclear complex, [(8-QNS)2 Au(AuPPh3)2]BF4 1 (8-QNS = quinoline-8-thiolate). 1 is structurally characterized by the single crystal X-ray diffraction study, showing two intramolecular gold(I)•••gold(I) interactions (3.0952(4) and 3.0526(3) Å), where two molecules of 1 are further aggregated into a novel hexanuclear supermolecule, (1)2, via a close intermolecular gold(I)•••gold(I) contact of 3.1135(3) Å. In addition to the interesting structural property of 1, it also shows a dramatic solvent effect dependent on the solvent polarity. Second part is to utilize the designed pyridyl amides as bridging ligands for the construction of gold(I) supermolecules. When compared with the literature and free ligands, the emissions of these gold(I) supermolecules is tentatively assigned to a π → π* of PPh3 mixing with a Au → PPh3 transition. Third part includes synthesis and characterizations of a series of inorganic- organic Cd(II) coordination polymers 7 - 11. Py2S (4,4’- dipyridyl sulfide), 4-pytaH [(4-Pyridylthio)acetic acid] and PL3 (N1, N3, N5- tri(pyridin-4-yl)-isophthalamide) are chosen as bridging ligands to synthesize coordination polymers with different Cd(II) salts. 7, 8 and 9 form different polymeric structures due to different counteranions and solvent systems. 10 is formed as a 1-D polymer, but is further hydrogen- bonded to lead to the formation of a 2-D structure. 11 is formed as a 3-D coordination polymer with a channel structure. The luminescence properties of these coordination polymers are also investigated.
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