Benzil/triethylamine: a photo-reducing system for Cu2+

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Abstract: We have investigated the photo-induced reduction of Cu2+–Cu0 using benzil/triethylamine mixtures. The formation of elemental Cu is indicated by the appearance of its characteristic plasmon absorption peaks at 515 nm and 620 nm. Importantly, the nature of the counterion of the Cu2+ salt affects the reduction process. In the presence of Cl, the reduction proceeds faster than with SO4 2-. Photo-induced electron transfer between excited benzil and triethylamine leads to the benzil radical anion, which acts as the reducing agent for Cu2+ and generates Cu0. Graphical abstract: [Figure not available: see fulltext.].

Original languageEnglish
Pages (from-to)499-504
Number of pages6
JournalMonatshefte fur Chemie
Volume149
Issue number3
DOIs
Publication statusPublished - 1 Mar 2018

Fingerprint

Reducing Agents
Anions
Salts
Electrons
triethylamine
benzil

Keywords

  • Metal reduction
  • Photo-induced electron transfer
  • Radicals
  • Spectroscopy

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Benzil/triethylamine : a photo-reducing system for Cu2+. / Schmallegger, Max; Gescheidt, Georg.

In: Monatshefte fur Chemie, Vol. 149, No. 3, 01.03.2018, p. 499-504.

Research output: Contribution to journalArticleResearchpeer-review

@article{68e457e9470c40bc938d3f353b327d6f,
title = "Benzil/triethylamine: a photo-reducing system for Cu2+",
abstract = "Abstract: We have investigated the photo-induced reduction of Cu2+–Cu0 using benzil/triethylamine mixtures. The formation of elemental Cu is indicated by the appearance of its characteristic plasmon absorption peaks at 515 nm and 620 nm. Importantly, the nature of the counterion of the Cu2+ salt affects the reduction process. In the presence of Cl−, the reduction proceeds faster than with SO4 2-. Photo-induced electron transfer between excited benzil and triethylamine leads to the benzil radical anion, which acts as the reducing agent for Cu2+ and generates Cu0. Graphical abstract: [Figure not available: see fulltext.].",
keywords = "Metal reduction, Photo-induced electron transfer, Radicals, Spectroscopy",
author = "Max Schmallegger and Georg Gescheidt",
year = "2018",
month = "3",
day = "1",
doi = "10.1007/s00706-017-2085-7",
language = "English",
volume = "149",
pages = "499--504",
journal = "Monatshefte f{\"u}r Chemie = Chemical monthly",
issn = "0026-9247",
publisher = "Springer Wien",
number = "3",

}

TY - JOUR

T1 - Benzil/triethylamine

T2 - a photo-reducing system for Cu2+

AU - Schmallegger, Max

AU - Gescheidt, Georg

PY - 2018/3/1

Y1 - 2018/3/1

N2 - Abstract: We have investigated the photo-induced reduction of Cu2+–Cu0 using benzil/triethylamine mixtures. The formation of elemental Cu is indicated by the appearance of its characteristic plasmon absorption peaks at 515 nm and 620 nm. Importantly, the nature of the counterion of the Cu2+ salt affects the reduction process. In the presence of Cl−, the reduction proceeds faster than with SO4 2-. Photo-induced electron transfer between excited benzil and triethylamine leads to the benzil radical anion, which acts as the reducing agent for Cu2+ and generates Cu0. Graphical abstract: [Figure not available: see fulltext.].

AB - Abstract: We have investigated the photo-induced reduction of Cu2+–Cu0 using benzil/triethylamine mixtures. The formation of elemental Cu is indicated by the appearance of its characteristic plasmon absorption peaks at 515 nm and 620 nm. Importantly, the nature of the counterion of the Cu2+ salt affects the reduction process. In the presence of Cl−, the reduction proceeds faster than with SO4 2-. Photo-induced electron transfer between excited benzil and triethylamine leads to the benzil radical anion, which acts as the reducing agent for Cu2+ and generates Cu0. Graphical abstract: [Figure not available: see fulltext.].

KW - Metal reduction

KW - Photo-induced electron transfer

KW - Radicals

KW - Spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=85044297664&partnerID=8YFLogxK

U2 - 10.1007/s00706-017-2085-7

DO - 10.1007/s00706-017-2085-7

M3 - Article

VL - 149

SP - 499

EP - 504

JO - Monatshefte für Chemie = Chemical monthly

JF - Monatshefte für Chemie = Chemical monthly

SN - 0026-9247

IS - 3

ER -