Photochemistry of Benzophenone in 2-Propanol: An Easy Experiment for Undergraduate Physical Chemistry Courses

M. S. Churio and M. A. Grela
Department of Chemistry, University of Mar del Plata, 7600 Mar del Plata, Argentina
J. Chem. Educ., 1997, 74 (4), p 436
DOI: 10.1021/ed074p436
Publication Date (Web): April 1, 1997

Abstract

In this article we describe a laboratory experiment for undergraduate physical chemistry courses dealing with the photophysics and photochemistry of benzophenone in 2-propanol. This is an easy-to-perform experiment aimed to introduce the basic concepts of photochemistry which may help to achieve a systematic approach to the subject, incorporating related topics of chemical kinetics and molecular spectroscopy. This experiment provides quantitative data regarding the lifetime of short-lived excited states, which does not require expensive time resolved techniques.

Keywords (Audience):

Upper-Division Undergraduate

Keywords (Domain):

Physical Chemistry

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Photochemistry

Citing Articles

View all 5 citing articles

Citation data is made available by participants in CrossRef's Cited-by Linking service. For a more comprehensive list of citations to this article, users are encouraged to perform a search in SciFinder.

This article has been cited by 5 ACS Journal articles (5 most recent appear below).

  • Cover Image

    Photochemical Size Reduction of CdSe and CdSe/ZnS Semiconductor Nanoparticles Assisted by nπ* Aromatic Ketones

    Raquel E. Galian, Miguel de la Guardia and Julia Pérez-Prieto
    Journal of the American Chemical Society2009 131 (3), 892-893
    • Photochemical Size Reduction of CdSe and CdSe/ZnS Semiconductor Nanoparticles Assisted by nπ* Aromatic Ketones

      Raquel E. Galian, Miguel de la Guardia and Julia Pérez-Prieto
      Journal of the American Chemical Society2009 131 (3), 892-893

      A novel effect of nπ* aromatic ketones on the quantum dots optical properties is reported. By controlling experimental conditions such as time of irradiation, presence of air in the media, hydrogen donor capacity of the solvent, and irradiation wavelength,...

  • Cover Image

    Modern Developments in the Physical Chemistry Laboratory

    Samuel A. Abrash
    2007 973 (), 115-151
    • Modern Developments in the Physical Chemistry Laboratory

      Samuel A. Abrash
      2007 973 (), 115-151

      Developments in the physical chemistry laboratory since the publication of the germinal text by Schwenz and Moore (1) are categorized and reviewed. The categories examined include modern instrumentation, current topics in chemistry, integrated ...

  • Cover Image

    Small Scale Reactor for Ultraviolet Photochemistry

    James E. Gano , Andrew J. Gano , Patricia Garry and Padmanabhan Sekher
    Journal of Chemical Education2002 79 (11), 1361
    • Small Scale Reactor for Ultraviolet Photochemistry

      James E. Gano , Andrew J. Gano , Patricia Garry and Padmanabhan Sekher
      Journal of Chemical Education2002 79 (11), 1361

      A simple, versatile, inexpensive, synthetic photochemical reactor is described. A variety of wavelengths, such as 214 (Zn), 229 (Cd), and 254 nm (Hg), can be applied to gram quantities of material. It can be constructed using modest glassblowing skills.

  • Cover Image

    Ultrasound Effects on the Photopinacolization of Benzophenone

    Anton Gaplovsky, Martin Gaplovsky, Stefan Toma, and Jean-Louis Luche
    The Journal of Organic Chemistry2000 65 (25), 8444-8447
    • Ultrasound Effects on the Photopinacolization of Benzophenone

      Anton Gaplovsky, Martin Gaplovsky, Stefan Toma, and Jean-Louis Luche
      The Journal of Organic Chemistry2000 65 (25), 8444-8447

      Ultrasonic irradiation is able to modify the course of several photochemical reactions, especially bimolecular, proceeding via triplet states. These effects were illustrated in the study of benzophenone photopinacolization in ethanol. The rates and yields ...

  • Cover Image

    Acetone-Photosensitized Reduction of Carbon Tetrachloride by 2-Propanol in Aqueous Solution

    Eric A. Betterton, Nadia Hollan, Robert G. Arnold, Stefan Gogosha, Krista McKim, and Zhijie Liu
    Environmental Science & Technology2000 34 (7), 1229-1233
    • Acetone-Photosensitized Reduction of Carbon Tetrachloride by 2-Propanol in Aqueous Solution

      Eric A. Betterton, Nadia Hollan, Robert G. Arnold, Stefan Gogosha, Krista McKim, and Zhijie Liu
      Environmental Science & Technology2000 34 (7), 1229-1233

      Simple carbonyl chromophores can be used to facilitate the solar-promoted reductive dehalogenation of halo-organics. Here we describe the kinetics and mechanism of the reductive dehalogenation of carbon tetrachloride (CT) to chloroform (CF) in the ...

Tools

SciFinder Links

SciFinder subscribers:  Click to sign in | Not a SciFinder subscriber? Learn more at www.cas.org

Explore by:


History

  • Received: August 03, 2009

Recommend & Share

  • Share on ACS NetworkACS Network
  • Add to FacebookFacebook
  • Tweet ThisTweet This
  • Add to CiteULikeCiteULike
  • Add to NewsvineNewsvine
  • Digg ThisDigg This
  • Add to DeliciousDelicious

Related Content