Journal
CRYSTAL GROWTH & DESIGN
Volume 13, Issue 1, Pages 106-110Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cg301243e
Keywords
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Funding
- National Nature Science Foundation of China [21222102, 21171166, 51102231]
- 973 key programs of the MOST [2010CB933501, 2011CB935904]
- Key Project of Fujian Province [2012H0045]
- One Hundred Talent Program of the Chinese Academy of Sciences
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A novel dual-emissive metal-organic framework [Pb-3(BPT)(2)(phen)(2)]center dot phen (1) has been obtained by hydrothermal reactions of biphenyl-3,4',5-tricarboxylic acid (H3BPT), phen, and lead nitrate in aqueous solution. It consists of a main right-handed helix and three left-handed helical chains with the three left-handed helical chains sharing the same helical axis and further enwinding the main right-handed helical chain alternately. The BPT3- ligands join the ID helical chains into 2D layers with the terminal phen hands extending upward and downward, which are further interdigitated into a 3D packing supramolecular architecture through pi-pi interactions between the phen molecules of neighbor layers. The second harmonic generation (SHG) measurement reveals that 1 is nonlinear optical active with SHG efficiency approximately equivalent to that of the standard potassium dihydrogen phosphate (KDP), and photoluminescent investigation displays that complex 1 exhibits distinct tunable yellow-to-violet photoluminescence by varying the excitation light.
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