Enthalpy changes for the formation of CdA and CdA2 exciplexes in the cadmium(5 3P1)-photosensitized reaction of some substrates in the gas phase

Omar Ahmed, Tetsuo Sakata, Yoshimi Sueishi, Shunzo Yamamoto

Research output: Contribution to journalArticle

Abstract

The Cd-photosensitized luminescence of some substrates (A) has been investigated by a steady illumination method over a wide range of pressure at several temperatures. The second emission band appeared at high pressures of substrates on the long-wavelength side of the band previously reported, and the intensity of the former band increased with the pressure of substrate. This band was assigned to the CdA2* exciplex. The enthalpy changes (ΔH°1 and ΔH°2) for the first and second attachments of substrates to an excited Cd atom were estimated from the temperature dependences of the intensity ratios of the 326.1 nm resonance line, and the short- and long-wavelength bands.

Original languageEnglish
Pages (from-to)603-606
Number of pages4
JournalJournal of the Chemical Society, Faraday Transactions
Volume91
Issue number4
DOIs
Publication statusPublished - 1995

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Cadmium
cadmium
Enthalpy
Gases
enthalpy
vapor phases
Substrates
Wavelength
wavelengths
Luminescence
resonance lines
Lighting
attachment
Atoms
Temperature
illumination
luminescence
temperature dependence
atoms
temperature

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

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title = "Enthalpy changes for the formation of CdA and CdA2 exciplexes in the cadmium(5 3P1)-photosensitized reaction of some substrates in the gas phase",
abstract = "The Cd-photosensitized luminescence of some substrates (A) has been investigated by a steady illumination method over a wide range of pressure at several temperatures. The second emission band appeared at high pressures of substrates on the long-wavelength side of the band previously reported, and the intensity of the former band increased with the pressure of substrate. This band was assigned to the CdA2* exciplex. The enthalpy changes (ΔH°1 and ΔH°2) for the first and second attachments of substrates to an excited Cd atom were estimated from the temperature dependences of the intensity ratios of the 326.1 nm resonance line, and the short- and long-wavelength bands.",
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T1 - Enthalpy changes for the formation of CdA and CdA2 exciplexes in the cadmium(5 3P1)-photosensitized reaction of some substrates in the gas phase

AU - Ahmed, Omar

AU - Sakata, Tetsuo

AU - Sueishi, Yoshimi

AU - Yamamoto, Shunzo

PY - 1995

Y1 - 1995

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AB - The Cd-photosensitized luminescence of some substrates (A) has been investigated by a steady illumination method over a wide range of pressure at several temperatures. The second emission band appeared at high pressures of substrates on the long-wavelength side of the band previously reported, and the intensity of the former band increased with the pressure of substrate. This band was assigned to the CdA2* exciplex. The enthalpy changes (ΔH°1 and ΔH°2) for the first and second attachments of substrates to an excited Cd atom were estimated from the temperature dependences of the intensity ratios of the 326.1 nm resonance line, and the short- and long-wavelength bands.

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