Keywords: Serotonin-Spartan-HF-based-on-xtal-3D-sf-web.png Space-filling model of the serotonin molecule C<sub>10</sub>H<sub>12</sub>N<sub>2</sub>O Colour code Carbon C grey-black Hydrogen H white Nitrogen N blue Oxygen O red Structure based on that found in the salt serotonin hydrogen oxalate determined by X-ray crystallography in http //dx doi org/10 3891/acta chem scand 32a-0267 Acta Chem Scand 1978 32a 267-270 Model manipulated in http //www crystalmaker com/ CrystalMaker 8 3 The structure of the serotonin cation from the above crystal structure was opened in http //www wavefun com/products/macintosh/Student/mac_student html Spartan Student 4 1 one hydrogen atom on the RNH<sub>3</sub><sup>+</sup> group was deleted yielding the neutral serotonin molecule Its structure was then refined with Hartree-Fock level of theory and the 3-21G basis set Image generated in http //accelrys com/products/discovery-studio/visualization/discovery-studio-visualizer html Accelrys DS Visualizer Own 2011-03-13 Ben Mills Benjah-bmm27 Images by Ben Mills Serotonin |