Hydrogen Bonding Interactions Directed Various Supramolecular Networks Based on Octamolybdates and Different Flexible Bis-Pyridyl-Bis-Amide Ligands

作者：Sun, Junjun; Lin, Hongyan^*; Chang, Zhihan; Wang, Xiuli^*; Liu, Guocheng

来源：Journal of Inorganic and Organometallic Polymers and Materials, 2017, 27(1): 176-185.

DOI：10.1007/s10904-016-0460-1

• Polyoxometalate
• Bis-pyridyl-bis-amide
• Supramolecular network
• Electrochemical property
• Photocatalytic property

Four new inorganic-organic hybrid supramolecular architectures constructed from octamolybdates (Mo8O26) and different bis-pyridyl-bis-amide ligands, (3-dpye = N,N'-bis(3-pyridinecarboxamide)-1,2-ethane, 4-dpye = N,N'-bis(4-pyridinecarboxamide)-1,2-ethane, 3-dpyp = N,N'-bis(3-pyridinecarboxamide)-1,3-propane, 4-dpyp = N,N'-bis(4-pyridinecarboxamide)-1,3-propane): (3-H(2)dpye)(gamma-Mo8O26)(0.5) (1) and (4-H(2)dpye)[(4-dpye)(gamma-Mo8O26)](0.5)center dot 2H(2)O (2) and [(3-H(2)dpyp)(2)(beta-Mo8O26)]center dot 2H(2)O (3) [(4-H(2)dpyp)(2)(beta-Mo8O26)]center dot 2H(2)O (4), have been hydrothermally prepared and structurally characterized by single crystal X-ray diffraction analyses. Compound 1 exhibits a 3D 6-connected supramolecular framework assembled from 1D gamma-Mo8O26 inorganic chains and 3-H(2)dpye molecules. Compound 2 consists of an uncommon 1D gamma-Mo8O26-4-dpye inorganic-organic hybrid chain connected by Mo-N bond, which are extended by 4-H(2)dpye molecules to a 3D 3,8-connected supramolecular framework. Compounds 3 and 4 show 3D 6,6-connected supramolecular framework and 2D 3,6-connected supramolecular layer based on beta-Mo8O26 anions and 3/4-H(2)dpyp molecules via hydrogen bonds, respectively. The different bis-pyridyl-bis-amide ligands, isomers of octamolybdates and hydrogen bonding interactions in the title compounds show great effects on the final supramolecular networks. The electrochemical, electrocatalytic and photocatalytic activities of compounds 1-4 have been investigated.

• 出版日期2017-1
• 单位渤海大学