Metallogel of Platinum(Ⅱ) Terpyridyl Complexes: Interplay of π-π and Hydrogen Bonding Interactions on Gel Formation

• Main Authors: Yu-yun Wang, 王昱昀
• Other Authors: Shih-sheng Sun
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/88821680609622682414

碩士 === 國立臺灣科技大學 === 應用科技研究所 === 100 === A series of supramolecular gelators based on alkynylplatinum(II) terpyridyl complexes with long-chain pyridine-2,6-dicarboxamides has been synthesized. One out of two complexes is capable of immobilizing organic solvents to form luminescent metallogel through a combination of intermolecular hydrogen bonding and aromatic ??? interactions. The self-aggregation of this complex in solutions and the resulting gels were investigated with variable-temperature 1HNMR and absorption/emission spectroscopy. SEM, TEM and AFM micrograph on xerogel reveals entangled nanofiber with diameter of 3-4 nm. Unique photophysical properties have been investigated with luminescene enhancement at elevated temperature, which is sharp contrast to typical thermotropic supramolecular gels reported in the literature. Such unusual luminescene enhancement is attributed to the different aggregation type at high concentration.