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      Synthesis and X-ray structures of triphenylphosphine-mercury(II) thiosalicylate complexes: novel aggregation processes

      Nicholson, Brian K.; Henderson, William
      DOI
       10.1016/j.ica.2003.11.049
      Link
       www.sciencedirect.com.ezproxy.waikato.ac.nz:2048
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      Nicholson, B. K. & Henderson, W. (2004). Synthesis and X-ray structures of triphenylphosphine-mercury(II) thiosalicylate complexes: novel aggregation processes. Inorganica Chimica Acta, 357(8), 2231-2236.
      Permanent Research Commons link: https://hdl.handle.net/10289/169
      Abstract
      Reaction of [HgCl2(PPh3)2] with one equivalent of thiosalicylic acid (tsalH2, HSC6H4CO2H) and excess triethylamine, followed by recrystallisation from dichloromethane-diethyl ether gives the compound [Hg2(tsal)2(PPh3)2] (2). This has a bis(S,O)-chelated mercury centre with a nido-trigonal bipyramidal coodination, with the four oxygens of the two carboxylates also coordinated to a Hg(PPh3)2 moiety. When a reduced quantity of pyridine was used as the base a different crystalline product was isolated. This was characterised as [Hg2(tsal)2(PPh3)2][Hg(tsalH)2] (3), which contains the same [Hg2(tsal)2(PPh3)2] moiety found for 2, co-crystallised with a [Hg(tsalH)2]. The two mercury-thiosalicylate species are connected by means of O-H O hydrogen bonding.
      Date
      2002-06-01
      Type
      Journal Article
      Publisher
      Elsevier BV
      Rights
      This article is published in the journal Inorganica Chimica Acta, (c) 2003 Elsevier B.V.
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      • Science and Engineering Papers [3019]
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