A series of new hybrid compounds constructed from Dawson-type phosphomolybdates and metal-organic coordination complexes

作者：An, Haiyan^*; Xu, Tieqi; Liu, Xuan; Jia, Cuiying

来源：Journal of Coordination Chemistry, 2010, 63(17): 3028-3041.

DOI：10.1080/00958972.2010.506215

• Dawson-type phosphomolybdate
• Alkali-metal coordination complex
• Lanthanide coordination complex
• 1-D chain
• Supramolecular channel

In this study, a series of compounds based on Dawson-type phosphomolybdates, H3(C6NO2H6)2[K(H2O)3(C6NO2H5)3][P2Mo18O62] 5.5H2O (1), (C6NO2H6)6[Ln(H2O)7(C6NO2H5)2]2[P2Mo18O62]2 center dot 13.5H2O (Ln = Ce (2), La (3)) have been synthesized and characterized by elemental analysis, IR and UV-Vis spectroscopy methods, TG analysis, and single-crystal X-ray diffraction. Compound 1 consists of [P2Mo18O62]6- building units joined by potassium-pyridine-3-carboxylic acid complexes, resulting in a wavelike polyoxometalate (POM) chain, which further interacts with each other via intermolecular interactions to form a 3-D supramolecular channel framework containing guest water molecules. Compounds 2 and 3 possess a 3-D supramolecular framework with 1-D tunnel constructed from [P2Mo18O62]6- and mononuclear lanthanide coordination complex fragments. To the best of our knowledge, 1 not only represents the first example of 1-D hybrid assembly based on Dawson-type phosphomolybdate, but also the first hybrid compound constructed from Dawson-type POMs and alkali-metal coordination complex fragments.

• 出版日期2010
• 单位大连理工大学