title: ShelXle: a Qt graphical user interface for SHELXL.
abstract: ShelXle is a graphical user interface for SHELXL [Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122], currently the most widely used program for small-molecule structure refinement. It combines an editor with syntax highlighting for the SHELXL-associated .ins (input) and .res (output) files with an interactive graphical display for visualization of a three-dimensional structure including the electron density (F(o)) and difference density (F(o)-F(c)) maps. Special features of ShelXle include intuitive atom (re-)naming, a strongly coupled editor, structure visualization in various mono and stereo modes, and a novel way of displaying disorder extending over special positions. ShelXle is completely compatible with all features of SHELXL and is written entirely in C++ using the Qt4 and FFTW libraries. It is available at no cost for Windows, Linux and Mac-OS X and as source code.
authors.affiliation: Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Göttingen,  Germany.
authors.forename: Christian B
authors.initials: CB
authors.lastname: Hübschle
authors.forename: George M
authors.initials: GM
authors.lastname: Sheldrick
authors.forename: Birger
authors.initials: B
authors.lastname: Dittrich