Assembly and photocatalysis of three novel metal-organic frameworks tuned by metal polymeric motifs

作者：Wang Lei^*; Shan Yuexia; Gu Xiaomin; Ni Liang; Zhang Wenli

来源：Journal of Coordination Chemistry, 2015, 68(11): 2014-2028.

DOI：10.1080/00958972.2015.1035652

• Hydrothermal synthesis
• Crystal structure
• Fluorescence
• Catalytic properties
• Thiodiacetate

By using a thiodiacetate, phenanthroline, and tuning the metal salts in the reaction system, three new metal-organic coordination complexes, {[Co(MOPIP)(2)(tda)]H2O}(1/2) (1), [Cd(MOPIP)(2)(tda)](2)3H(2)O (2), and [Cu5I4(MOPIP)(3)H2O](n) (3) (TDA - S(CH2COO)(2)(2-), thiodiacetate; MOPIp=2-(4-methoxyphenyl)-1H-imidazo[4,5-f][1, 10]phenanthroline), have been prepared through hydrothermal reactions. In 1 and 2, the metal (Co2+/Cd2+) centers are connected by tda to form a mononuclear molecule, which connect to a two-dimensional (2-D) layer by N-HO hydrogen bonds. By selecting the copper iodide salt we get 3, where the Cu+ center exhibits three different coordination types, which has never been seen before in the same compound, and linked by iodide and MOPIP to construct a new 3-D framework. Compound 3 represents the first example of MOPIP showing a new coordination mode with four nitrogens all coordinated. The metal salts play an important role in assembly of the structures of 1-3. Introduction of MOPIP shows significant effect on the dimensionalities of complexes. The fluorescence and catalytic properties of 1 and 3 have also been investigated.

• 出版日期2015
• 单位江苏大学