Journal
INORGANICA CHIMICA ACTA
Volume 360, Issue 1, Pages 109-121Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ica.2006.07.037
Keywords
alkynyl; fluorene; fluorenone; HPLC luminescence; mercury
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New luminescent mononuclear mercury(II) mono- and dialkynylated complexes containing substituted fluorene and fluorenone units [R-C C-HgCH3] and [R-C CHg-C C-R] (R = 9,9-dialkylfluorene-2-yl and fluoren-9-one-2-yl; alkyl = H, ethyl, hexyl, octyl, hexadecyl) were prepared in good yields by mercuration of terminal acetylene R-C CH with CH3HgCl and HgCl, at room temperature via the dehydrohalogenation reaction. The structures of these organomercurial compounds were characterized by IR and NMR spectroscopies, elemental analysis and FAB mass spectrometry. Their optical and photoluminescence spectra were also studied. The structural features of one complex was elucidated by X-ray crystallography in which there is an indication of weak mercuriophicity among the molecules in the solid state. A new protocol is developed for derivatization of inorganic mercury(II) ion into dialkynyl mercury(II) compounds followed by the ready extraction into dichloromethane, which can be analyzed by HPLC technique using UV detection. These results have important implications in the development of analytical procedures for the determination of mercuric ion in aqueous solutions. (c) 2006 Elsevier B.V. All rights reserved.
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