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      Supramolecular Isomerism in a Cadmium Bis(N-Hydroxyethyl, N-isopropyldithiocarbamate) Compound: Physiochemical Characterization of Ball (n = 2) and Chain (n = ∞) Forms of {Cd[S₂CN(iPr)CH₂CH₂OH] ₂•solvent}n

      Tan, Yee Seng; Sudlow, Anna L.; Molloy, Kieran C.; Morishima, Yui; Fujisawa, Kiyoshi; Jackson, Wendy J.; Henderson, William; Halim, Siti Nadiah Binti Abdul; Ng, Seik Weng; Tiekink, Edward R.T.
      DOI
       10.1021/cg400453x
      Link
       pubs.acs.org
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      Citation
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      Tan, Y. S., Sudlow, A. L., Molloy, K. C., Morishima, Y., Fujisawa, K., Jackson, W. J., ..., Tiekink, E. R. T. (2013). Supramolecular Isomerism in a Cadmium Bis(N-Hydroxyethyl, N-isopropyldithiocarbamate) Compound: Physiochemical Characterization of Ball (n = 2) and Chain (n = ∞) Forms of {Cd[S₂CN(iPr)CH₂CH₂OH] ₂•solvent}n. Crystal Growth & Design, 13(7), 3046-3056.
      Permanent Research Commons link: https://hdl.handle.net/10289/7892
      Abstract
      Needles of [{Cd[S₂CN(iPr)CH₂CH₂OH] ₂}₃•MeCN]∞ (2) were harvested from a dry acetonitrile solution of Cd[S₂CN(iPr)CH₂CH₂OH] ₂ after one or two days and proved to be a coordination polymer in which all dithiocarbamate ligands are μ₂,κ²-tridentate, bridging two cadmium atoms and simultaneously chelating one of these. If the same solution was allowed to stand for at least several days, 2 is replaced by blocks comprising a supramolecular isomer of 2, dimeric 1, with formula {Cd[S₂CN(iPr)CH₂CH₂OH] ₂}₂•2H₂O•2MeCN, and two ligands coordinating μ₂,κ² as in 2 and the other two purely κ2-chelating. The time dependency correlates with the pivotal role of water in driving the conversion of “chain” 2 to “ball” 1; crystals of 2 could not be isolated from “wet” acetonitrile. When each of 1 and 2 are dissolved in solution, they exhibit comparable spectroscopic attributes (¹H, ¹³C, and ¹¹³Cd NMR and UV/vis), indicating the solution structures are the same. Both 1 and 2 are luminescent in the solid state with 1 being significantly brighter than 2. Greenockite CdS nanoparticles are generated by the thermal decomposition of both 1 and 2.
      Date
      2013
      Type
      Journal Article
      Publisher
      ACS Publications
      Collections
      • Science and Engineering Papers [2815]
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