Volume 30, Issue 3 pp. 512-516
Full Paper

A Supermolecule Assembled by Sodium Cation, Crown Ether and α-Dawson Heteropolyanion

Linli Zhu

Linli Zhu

Department of Chemistry, Capital Normal University, Beijing 100037, China

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Xiaoming Lu

Corresponding Author

Xiaoming Lu

Department of Chemistry, Capital Normal University, Beijing 100037, China

Department of Chemistry, Capital Normal University, Beijing 100037, ChinaSearch for more papers by this author
First published: 15 March 2012
Citations: 5

Abstract

The supermolecular based on sodium molybdate(VI) and sulfate, dibenzo-18-crown-6 was synthesized in acetonitrile and characterized by elemental analysis, IR, 1H NMR, single crystal X-ray diffraction, indicating that it contains [S2Mo18O62]4+ and [Na(DB18C6)(H2O)]+, where each sodium ion is deviated from the plane defined by the oxygen atoms in the corresponding crown ether. The compound crystallizes in the monoclinic space group C2/c with a=3.29332(10) nm, b=1.90917(6) nm, c=2.63132(7) nm, β=121.6630(10)°, V=14081.8(7) nm3, Z=8, T=293(2) K, and R1 (wR2)=0.0177 (0.1525). The compound exhibits a novel organic-inorganic structure, in which the crown ether-sodium complexes are coordinated to the terminal oxygen atoms of Mo18O54 and the oxygen atoms of water molecule.

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