Synthesis, crystal structure, and photochromism of novel two-dimensional supramolecular networks based on Keggin-type polyoxoanion and lanthanide coordination cations.

Published

Journal Article

Three new compounds [Ln(NMP)(4)(H(2)O)(4)][H(x)()GeMo(12)O(40)].2NMP.3H(2)O (Ln = Ce(IV) (1), Pr(IV) (2), x = 0; Ln = Nd(III) (3), x = 1; NMP = N-methyl-2-pyrrolidone) have been prepared in aqueous solution and characterized by elemental analyses, IR, UV-vis, and TG analyses. The single crystal X-ray diffraction shows that all three compounds are isostructural. In their structures, an interesting two-dimensional supramolecular network is constructed by the [GeMo(12)O(40)](4)(-) anion and [Ln(NMP)(4)(H(2)O)(4)](3+/4+) cation building blocks via hydrogen-bonding interactions, exhibiting the porous structure. Upon irradiation with UV light, the crystals of 1-3 show photochromic behavior.

Full Text

Duke Authors

Cited Authors

  • Zhang, H; Duan, L; Lan, Y; Wang, E; Hu, C

Published Date

  • December 2003

Published In

Volume / Issue

  • 42 / 24

Start / End Page

  • 8053 - 8058

PubMed ID

  • 14632525

Pubmed Central ID

  • 14632525

Electronic International Standard Serial Number (EISSN)

  • 1520-510X

International Standard Serial Number (ISSN)

  • 0020-1669

Digital Object Identifier (DOI)

  • 10.1021/ic0343962

Language

  • eng