Citation: Lu MENG, Jing Fu LIU. SYNTHESIS AND ¹⁸³W NMR CHARACTERIZATION OF A-β-GeM₂W₁₈Ti₆O₇₇¹⁴ HETEROPOLYANION[J]. Chinese Chemical Letters, ;1995, 6(3): 265-266. shu

SYNTHESIS AND ¹⁸³W NMR CHARACTERIZATION OF A-β-GeM₂W₁₈Ti₆O₇₇¹⁴ HETEROPOLYANION

Lu MENG ,
Jing Fu LIU

Department of Chemistry, Northeast Normal University, Changchun 130024

Received Date: 31 October 1994

A dimeric Keggin-type polyoxotungstate β-Ge₂W₁₈Ti₆O₇₇¹⁴ has been synthesized from the lacunary precursor β-GeW₆O₃₄¹⁰ and characterized by means of elemental anajysis,IR,polarogram,¹⁸³W NMR and FAB mass spectroscopy.The ¹⁸³W NMR spectrum consists of two lines with intensity ratio 1:2 as expected for trisubstiluted heteropolyanion.With the help of FAB mass spectrum,we concluded that it is a dimer of two Keggin units with D₃₀ symmetry.
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