Picture of athlete cycling

Open Access research with a real impact on health...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the Physical Activity for Health Group based within the School of Psychological Sciences & Health. Research here seeks to better understand how and why physical activity improves health, gain a better understanding of the amount, intensity, and type of physical activity needed for health benefits, and evaluate the effect of interventions to promote physical activity.

Explore open research content by Physical Activity for Health...

Resonance enhancement of the Raman-spectrum of bipyridyl gold(iii) chloro complexes

McConnell, A.A. and Brown, D.H. and Smith, W.E. (1982) Resonance enhancement of the Raman-spectrum of bipyridyl gold(iii) chloro complexes. Spectrochimica acta. Part A: Molecular spectroscopy, 38 (7). pp. 737-741. ISSN 0584-8539

Full text not available in this repository. Request a copy from the Strathclyde author

Abstract

Using exciting wavelengths in the visible region, both bipyridyl Au2Cl6 and bipyridyl AuCl3 are shown to exhibit resonance-enhanced Raman scattering. The enhancement in bipyridyl Au2Cl6 is largest with 488.0 and 514.5 nm excitation, both bipyridyl ring and metal-ligand stretching vibrations are affected to about the same extent. The electronic transitions which give rise to the enhancement are assigned as transitions involving σ molecular orbitals delocalized over the complete molecule. In the resonance profile of bipyridyl AuCl3, there were three peaks at 568.2, 514.4 and below 476 nm and, in addition, there is a probable B term enhancement. In this molecule the resonance arises from transition between more localized molecular orbitals assigned as due to a transition on the gold-nitrogen bond, to π→π* transitions on the bipyridyl ring and the B term to a transition located mainly on the gold-chloride bonds. Some of these enhancements can be correlated with weak structure observed in the 10 K absorption spectrum of the complex.