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Solvatochromism and Barochromism Revisited and Revealed

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Satoshi Hirayama

Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606, Japan

Ronald P. Steer

Department of Chemistry, University of Saskatchewan, Saskatoon SK, Canada S7N 5C9

J. Chem. Educ., 2008, 85 (2), p 317

DOI: 10.1021/ed085p317

Publication Date (Web): February 1, 2008

Section:

History, Education, and Documentation

Abstract

A simplified treatment of the traditional theory of solvatochromism, attributed to Bayliss and McRae, is presented and used to describe the four main types of dipolar and dispersive physical interactions between solute and solvent. The theory is extended so that it may also be used to describe barochromism (pressure-induced spectroscopic shifts). The UV–vis spectrum of azulene, which exhibits unusual barochromism, is used as an illustrative example.

Keywords (Audience):

Graduate Education / Research

Keywords (Domain):

Physical Chemistry

Keywords (Pedagogy):

Misconceptions / Discrepant Events

Keywords (Subject):

Molecular Properties / Structure

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This article has been cited by 2 ACS Journal articles (2 most recent appear below).

Understanding the Theory and Practice of Molecular Spectroscopy: The Effects of Spectral Bandwidth
Satoshi Hirayama, Ronald P. Steer
Journal of Chemical Education2010 87 (12), 1344-1347
- Understanding the Theory and Practice of Molecular Spectroscopy: The Effects of Spectral Bandwidth
  Satoshi Hirayama, Ronald P. Steer
  Journal of Chemical Education2010 87 (12), 1344-1347
  The near-UV spectrum of benzene is used to illustrate the effects of variations in instrument spectral bandwidth on absorbance and molar absorptivity measurements and on the independence of values of quantities such as the oscillator strength that are ...
  Abstract | Full Text HTML | Hi-Res PDF | PDF w/ Links
Synthesis, Electrochemistry, Photophysics, and Solvatochromism in New Cyclometalated 6-Phenyl-4-(p-R-phenyl)-2,2′-bipyridyl (R = Me, COOMe, P(O)(OEt)₂) (CNN) Platinum(II) Thiophenolate Chromophores
Jacob Schneider, Pingwu Du, Xiaoyong Wang, William W. Brennessel and Richard Eisenberg
Inorganic Chemistry2009 48 (4), 1498-1506
- Synthesis, Electrochemistry, Photophysics, and Solvatochromism in New Cyclometalated 6-Phenyl-4-(p-R-phenyl)-2,2′-bipyridyl (R = Me, COOMe, P(O)(OEt)₂) (CNN) Platinum(II) Thiophenolate Chromophores
  Jacob Schneider, Pingwu Du, Xiaoyong Wang, William W. Brennessel and Richard Eisenberg
  Inorganic Chemistry2009 48 (4), 1498-1506
  Three new cyclometalated 6-phenyl-4-(p-R-phenyl)-2,2′-bipyridyl (CNN) Pt(II) thiophenolate complexes have been synthesized and studied. They have two charge-transfer bands in their electronic spectra tentatively assigned to a 1CT (λabs 415 nm) ...
  Abstract | Full Text HTML | Hi-Res PDF | PDF w/ Links

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Received: August 03, 2009

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Solvatochromism and Barochromism Revisited and Revealed