Top 10 European institutions in chemistry

Euro rank	World rank	Institution	Papers	Citations	Citations per paper
1	13	ETH Zurich, Switzerland	4,590	77,546	16.89
2	14	Max Planck Society, Germany	10,858	181,266	16.69
3	15	Imperial College London, UK	3,281	54,399	16.58
4	16	University of Cambridge, UK	4,374	70,872	16.20
5	17	University of Strasbourg 1, France	3,331	53,573	16.08
6	19	Technical University of Munich, Germany	3,216	50,021	15.55
7	21	University of Oxford, UK	4,117	57,885	14.06
8	24	National Centre for Scientific Research (CNRS), France	8,000	95,964	12.00
9		National Research Council (CNR), Italy	6,298	68,547	10.88
10	29	National Research Council (CSIC), Spain	6,888	70,091	10.18

The data above were extracted from the Essential Science Indicators database of Thomson Reuters. This database, currently covering the period January 1999 through February 2009, surveys only journal articles (original research reports and review articles) indexed by Thomson Reuters. Articles are assigned to a category based on the journals in which they were published and the Thomson Reuters journal-to-category field-definition scheme. Both articles tabulated and citation counts to those articles are for the period indicated. Naturally, institutions publishing large numbers of papers have a greater likelihood of collecting more citations than those publishing fewer papers.

This ranking is by citations per paper (impact), among those European institutions that have collected 50,000 or more citations in chemistry during the period. For papers with multiple institutional addresses, each institution receives full, not fractional, citation credit. Essential Science Indicators lists institutions ranked in the top 1 per cent for a field over a given period, based on total citations. For the current version, 892 institutions are listed in the field of chemistry, meaning that a total of 89,200 institutions were surveyed to obtain these results. Of the 892, 32 institutions collected 50,000 or more citations. The ranking by citations per paper (impact) seeks to reveal “heavy-hitters” based on per paper influence, not mere output. Also appearing is the world rank by impact for each of these European institutions.

For more information on the Thomson Reuters Essential Science Indicators database, see http://scientific.thomsonreuters.com/products/esi.