Photochemistry of iodocuprate(I) complexes

O. Horváth, Janos H. Fendler, Kenneth L. Stevenson

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Iodocuprate(I) complexes in aqueous solutions luminesce when excited in the UV region (275-290 nm), emitting in the visible region (λmax = 493 nm), with a very short lifetime of about 14 ns which is independent of ligand concentration in the range 1-5 M iodide ion. Luminescence quenching by H+ follows a Stern-Volmer relationship. Photolysis into the UV absorption band also produces hydrated electrons, which decay through scavenging by iodocuprate(I) itself or through recombination with the Cu(II) species formed in the primary step, similarly to the chloro- and bromocuprates(I). Also observed was the time-resolved spectrum of the transient I2-, which is apparently formed by reaction of the iodide ion with Cu(II) formed in the primary electron ejection step. The rate constant for the formation of I2- in 1 M NaI is estimated to be 4.4 × 107 s-1.

Original languageEnglish
Pages (from-to)227-230
Number of pages4
JournalInorganic Chemistry
Volume32
Issue number2
Publication statusPublished - 1993

Fingerprint

Photochemical reactions
Iodides
photochemical reactions
iodides
Ions
Electrons
Scavenging
scavenging
Photolysis
ejection
photolysis
Luminescence
Absorption spectra
Quenching
Rate constants
ions
electrons
quenching
luminescence
Ligands

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

Horváth, O., Fendler, J. H., & Stevenson, K. L. (1993). Photochemistry of iodocuprate(I) complexes. Inorganic Chemistry, 32(2), 227-230.

Photochemistry of iodocuprate(I) complexes. / Horváth, O.; Fendler, Janos H.; Stevenson, Kenneth L.

In: Inorganic Chemistry, Vol. 32, No. 2, 1993, p. 227-230.

Research output: Contribution to journalArticle

Horváth, O, Fendler, JH & Stevenson, KL 1993, 'Photochemistry of iodocuprate(I) complexes', Inorganic Chemistry, vol. 32, no. 2, pp. 227-230.
Horváth O, Fendler JH, Stevenson KL. Photochemistry of iodocuprate(I) complexes. Inorganic Chemistry. 1993;32(2):227-230.
Horváth, O. ; Fendler, Janos H. ; Stevenson, Kenneth L. / Photochemistry of iodocuprate(I) complexes. In: Inorganic Chemistry. 1993 ; Vol. 32, No. 2. pp. 227-230.
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