Surface science of soft scorpionates

Dawn Wallace, Edward John Quinn, David Armstrong, J. Reglinski, M.D. Spicer, W.E. Smith

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The chemisorption of the soft scorpionate Li[PhTmMe] onto silver and gold surfaces is reported. Surface enhanced Raman spectroscopy in combination with the Raman analysis of suitable structural models, namely, [Cu(κ3-S,S,S-PhTmMe)(PCy3)], [Ag(κ3-S,S,S-PhTmMe)(PCy3)], [Ag(κ2-S,S-PhTmMe)(PEt3)], and [Au(κ1-S-PhTmMe)(PCy3)], are employed to identify the manner in which this potentially tridentate ligand binds to these surfaces. On colloidal silver surface-enhanced Raman spectroscopy (SERS) spectra are consistent with PhTmMe binding in a didentate fashion to the surface, holding the aryl group in close proximity to the surface. In contrast, on gold colloid, we observe that the species prefers a monodentate coordination in which the aryl group is not in close proximity to the surface.
LanguageEnglish
Pages1420-1427
Number of pages8
JournalInorganic Chemistry
Volume49
Issue number4
Early online date7 Jan 2010
DOIs
Publication statusPublished - 15 Feb 2010

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Raman spectroscopy
proximity
silver
gold
Gold Colloid
Chemisorption
Silver
Gold
chemisorption
colloids
Ligands
ligands
colloidal silver

Keywords

  • scorpionates
  • inorganic chemistry
  • chemisorption
  • spectroscopy

Cite this

Wallace, D., Quinn, E. J., Armstrong, D., Reglinski, J., Spicer, M. D., & Smith, W. E. (2010). Surface science of soft scorpionates. Inorganic Chemistry, 49(4), 1420-1427. https://doi.org/10.1021/ic9014898
Wallace, Dawn ; Quinn, Edward John ; Armstrong, David ; Reglinski, J. ; Spicer, M.D. ; Smith, W.E. / Surface science of soft scorpionates. In: Inorganic Chemistry. 2010 ; Vol. 49, No. 4. pp. 1420-1427.
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Wallace, D, Quinn, EJ, Armstrong, D, Reglinski, J, Spicer, MD & Smith, WE 2010, 'Surface science of soft scorpionates' Inorganic Chemistry, vol. 49, no. 4, pp. 1420-1427. https://doi.org/10.1021/ic9014898

Surface science of soft scorpionates. / Wallace, Dawn; Quinn, Edward John; Armstrong, David; Reglinski, J.; Spicer, M.D.; Smith, W.E.

In: Inorganic Chemistry, Vol. 49, No. 4, 15.02.2010, p. 1420-1427.

Research output: Contribution to journalArticle

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T1 - Surface science of soft scorpionates

AU - Wallace, Dawn

AU - Quinn, Edward John

AU - Armstrong, David

AU - Reglinski, J.

AU - Spicer, M.D.

AU - Smith, W.E.

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AB - The chemisorption of the soft scorpionate Li[PhTmMe] onto silver and gold surfaces is reported. Surface enhanced Raman spectroscopy in combination with the Raman analysis of suitable structural models, namely, [Cu(κ3-S,S,S-PhTmMe)(PCy3)], [Ag(κ3-S,S,S-PhTmMe)(PCy3)], [Ag(κ2-S,S-PhTmMe)(PEt3)], and [Au(κ1-S-PhTmMe)(PCy3)], are employed to identify the manner in which this potentially tridentate ligand binds to these surfaces. On colloidal silver surface-enhanced Raman spectroscopy (SERS) spectra are consistent with PhTmMe binding in a didentate fashion to the surface, holding the aryl group in close proximity to the surface. In contrast, on gold colloid, we observe that the species prefers a monodentate coordination in which the aryl group is not in close proximity to the surface.

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Wallace D, Quinn EJ, Armstrong D, Reglinski J, Spicer MD, Smith WE. Surface science of soft scorpionates. Inorganic Chemistry. 2010 Feb 15;49(4):1420-1427. https://doi.org/10.1021/ic9014898