Chalcopyrite has a tetragonal crystal structure (space group I42d ) and the composition CuFeS2; answer to Guess the Mineral

Chalcopyrite

Fool's Gold as a Solar Material
Surprisingly low solar conversion efficiency of iron pyrite explained

Computational Chemistry in the Industry
A review of the use of quantum chemical calculations and modelling in industry

Most Accessed Articles: October 2014
The most-accessed chemistry articles from ChemPubSoc Europe, ACES, and GDCh journals for October 2014

Chemistry: Interdisciplinary and International – and with a Sense of History
Collaborations are essential for the future of chemistry, but so is appreciation of its history

Angewandte Chemie 47/2014: Molecular Machinery
Overview of the latest issue of Angewandte Chemie

Comic Competition: The Winners
The winning entries in the 2014 Comic Competition have been announced

Influence of University Rankings
Impact and influence of rankings on European higher education institutions

50th Anniversary: Hans von Euler-Chelpin's Death
Hans von Euler-Chelpin received the Nobel prize for his work on the role of enzymes in the fermentation of sugar

70th Birthday: Reinhard Zellner
Reinhard Zellner, University of Duisburg-Essen, Germany, celebrates his 70th birthday