Boeyens, Jan Christoffel Antonie2011-05-102011-05-102010-11Boeyens, JCA 2010, 'A molecular-structure hypothesis', International Journal of Molecular Sciences, vol. 11, pp. 4267-4284. [http://www.mdpi.com/journal/ijms]1422-006710.3390/ijms11114267http://hdl.handle.net/2263/16500ArticleThe self-similar symmetry that occurs between atomic nuclei, biological growth structures, the solar system, globular clusters and spiral galaxies suggests that a similar pattern should characterize atomic and molecular structures. This possibility is explored in terms of the current molecular structure-hypothesis and its extension into four-dimensional space-time. It is concluded that a quantum molecule only has structure in four dimensions and that classical (Newtonian) structure, which occurs in three dimensions, cannot be simulated by quantum-chemical computation.en© 2010 by the author; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license http://creativecommons.org/licenses/by/3.0/.Molecular shapeSelf-similarityGolden meanLogarithmic spiralHypercomplexGeneral covalenceFibonacci phyllotaxisQuantum potentialSpace-time topologyQuaternionsSolar systemAtomic structureSpace and timeArticle