Electron transfer. 154. Reaction of the nitrosodisulfonate anion radical with one- and multi-electron inorganic reductants

Electron transfer. 154. Reaction of the nitrosodisulfonate anion radical with one- and... The nitrosodisulfonate anion radical, •NO(SO3)2 2-, a single electron oxidant, reacts cleanly with an array of metal-center reductants. Rates for substitution-labile species generally fall in the range 104 -105 M-1 s-1, both for le-[EuII, FeII(EDTA)] and 2e-(UIV, InI, GeII and SnII) reagents. The more weakly reducing donor VO2+ reacts more slowly (3 M-1 s-1 at 22°C) and the substitution-inert complex Fe(CN)6 4- still more sluggishly. Reductions with the non-metal related donors, azide, formate, hypophosphite, hyponitrite and H22AsO3 -, fall in the range 10-4 -10-2 M-1 s-1. Reactions yield the product HON(SO3)2 2-. Kinetic decay curves feature no irregularities reflecting formation or loss of one or more transients on a time scale comparable to that of the main conversion, indicating that the experimental rates pertaining to the 2e reductants and to hydrazine (a 4e reductant) are determined by the initial le transfer and that follow-up steps are rapid. The usual distinction between complementary and noncomplementary redox reactions applies poorly to reductions of •NO(SO3)2 2-. Rapid reductions require (1) an adequate potential difference, (2) the possibility of an inner-sphere path and (3) the availability of one or more nonbonding electrons at the reducing site. Substitution-labile metal-based reducing centers embracing a wide range of formal potentials, both le- and 2e- donors, may react speedily, although the latter group must operate in steps. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Electron transfer. 154. Reaction of the nitrosodisulfonate anion radical with one- and multi-electron inorganic reductants

Loading next page...
 
/lp/springer_journal/electron-transfer-154-reaction-of-the-nitrosodisulfonate-anion-radical-TWe3CRew62
Publisher
Brill Academic Publishers
Copyright
Copyright © 2003 by VSP 2003
Subject
Chemistry; Inorganic Chemistry; Physical Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1163/156856703321505076
Publisher site
See Article on Publisher Site

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches

$49/month

Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.

$588

$360/year

billed annually
Start Free Trial

14-day Free Trial