Synthesis, property and crystal structure of a novel two-dimensional network organic–inorganic hybrid compound based on the neodymiumIII center and Keggin-type heteropolyanion of [α-BW12O40]5−

✍ Scribed by Jingyang Niu; Junwei Zhao; Jingping Wang; Pengtao Ma

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 279 KB
• Volume: 699
• Category: Article
• ISSN: 0022-2860
• DOI: 10.1016/j.molstruc.2004.05.005

✦ Synopsis

A novel two-dimensional infinite network organic -inorganic hybrid neodymium(III)-centered compound of formula (dmaH

is obtained by the conventional selfassembly reaction of neodymium oxide, N,N-dimethylformamide and borotungstic acid (a-H 5 BW 12 O 40 •30H 2 O) in the mixed solvent of acetonitrile and water, and characterized by IR, UV -visible spectra and X-ray single crystal diffraction. Structural analysis indicates that every [a-BW 12 O 40 ] 52 polyanion interconnects with three adjacent [Nd(dmf) 4 (H 2 O)] 3þ subunits by means of W -O-Nd bridges, meanwhile, every [Nd(dmf) 4 (H 2 O)] 3þ building block is surrounded by three neighboring [a-BW 12 O 40 ] 52 polyanions by making use of which an unprecedented two-dimensional extended network structure can be constructed. Interestingly, this structure pattern may act as useful model for the design and assembly of functional molecule-based compounds, especially in the field of molecular sieve materials.