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Correlating the motion of electrons and nuclei with two-dimensional electronic-vibrational spectroscopy

Overview of attention for article published in Proceedings of the National Academy of Sciences of the United States of America, June 2014
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (97th percentile)
  • High Attention Score compared to outputs of the same age and source (84th percentile)

Mentioned by

news
7 news outlets
blogs
3 blogs
twitter
1 tweeter

Citations

dimensions_citation
70 Dimensions

Readers on

mendeley
124 Mendeley
citeulike
1 CiteULike
Title
Correlating the motion of electrons and nuclei with two-dimensional electronic-vibrational spectroscopy
Published in
Proceedings of the National Academy of Sciences of the United States of America, June 2014
DOI 10.1073/pnas.1409207111
Pubmed ID
Authors

T. A. A. Oliver, N. H. C. Lewis, G. R. Fleming

Abstract

Multidimensional nonlinear spectroscopy, in the electronic and vibrational regimes, has reached maturity. To date, no experimental technique has combined the advantages of 2D electronic spectroscopy and 2D infrared spectroscopy, monitoring the evolution of the electronic and nuclear degrees of freedom simultaneously. The interplay and coupling between the electronic state and vibrational manifold is fundamental to understanding ensuing nonradiative pathways, especially those that involve conical intersections. We have developed a new experimental technique that is capable of correlating the electronic and vibrational degrees of freedom: 2D electronic-vibrational spectroscopy (2D-EV). We apply this new technique to the study of the 4-(di-cyanomethylene)-2-methyl-6-p-(dimethylamino)styryl-4H-pyran (DCM) laser dye in deuterated dimethyl sulfoxide and its excited state relaxation pathways. From 2D-EV spectra, we elucidate a ballistic mechanism on the excited state potential energy surface whereby molecules are almost instantaneously projected uphill in energy toward a transition state between locally excited and charge-transfer states, as evidenced by a rapid blue shift on the electronic axis of our 2D-EV spectra. The change in minimum energy structure in this excited state nonradiative crossing is evident as the central frequency of a specific vibrational mode changes on a many-picoseconds timescale. The underlying electronic dynamics, which occur on the hundreds of femtoseconds timescale, drive the far slower ensuing nuclear motions on the excited state potential surface, and serve as a excellent illustration for the unprecedented detail that 2D-EV will afford to photochemical reaction dynamics.

Twitter Demographics

The data shown below were collected from the profile of 1 tweeter who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 124 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 5 4%
Switzerland 2 2%
United Kingdom 2 2%
Germany 1 <1%
France 1 <1%
Belgium 1 <1%
Canada 1 <1%
Unknown 111 90%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 48 39%
Researcher 26 21%
Student > Doctoral Student 13 10%
Student > Bachelor 6 5%
Professor > Associate Professor 6 5%
Other 25 20%
Readers by discipline Count As %
Chemistry 80 65%
Physics and Astronomy 28 23%
Unspecified 8 6%
Engineering 2 2%
Agricultural and Biological Sciences 2 2%
Other 4 3%

Attention Score in Context

This research output has an Altmetric Attention Score of 68. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 24 June 2014.
All research outputs
#231,382
of 12,960,324 outputs
Outputs from Proceedings of the National Academy of Sciences of the United States of America
#5,309
of 79,114 outputs
Outputs of similar age
#3,976
of 189,742 outputs
Outputs of similar age from Proceedings of the National Academy of Sciences of the United States of America
#148
of 953 outputs
Altmetric has tracked 12,960,324 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 98th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 79,114 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 23.1. This one has done particularly well, scoring higher than 93% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 189,742 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 97% of its contemporaries.
We're also able to compare this research output to 953 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 84% of its contemporaries.