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Hybrid Cyclic Dimers of Divacant Heteropolyanions: Synthesis, Mass Spectrometry (MALDI‐TOF and ESI‐MS) and NMR Multinuclear Characterisation
Author(s) -
Mayer Cédric R.,
Hervé Maryline,
Lavanant Hélène,
Blais JeanClaude,
Sécheresse Francis
Publication year - 2004
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200300491
Subject(s) - chemistry , mass spectrometry , dimer , polyoxometalate , hybrid material , nuclear magnetic resonance spectroscopy , characterization (materials science) , electrophile , polymer chemistry , crystallography , stereochemistry , organic chemistry , nanotechnology , catalysis , chromatography , materials science
Abstract In the field of organic‐inorganic hybrid composites, functionalized polyoxometalates constitute a special class of inorganic nanobuilding blocks (NBBs). This study represents a first approach related to the formation of new oligomeric hybrid species based on the reaction of bis(electrophilic) groups with a divacant heteropolyanion as the NBB. Bis(phosphonates) such as para ‐H 2 O 3 PCH 2 (C 6 H 4 ) n CH 2 PO 3 H 2 ( n = 1 or 2) have been treated with the divacant heteropolyanion [γ‐SiW 10 O 36 ] 8− to form the hybrid cyclic dimer [ H 2 {(SiW 10 O 36 )(O=PCH 2 (C 6 H 4 ) n CH 2 P=O)} 2 ] 6− . MALDI‐TOF and ESI mass spectrometry have been used as essential analytical techniques for the characterization of such composite systems. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)