NATURE COMMUNICATIONS DOl:10.1038/ncomms1263 ARTICLE program CoQuS(Grant W1210-N16).The chemical synthesis in Basel was funded Additional information by the Swiss National Science Foundation and the NCCR 'Nanoscale Science.The Supplementary Information accompanies this paper at http://www.nature.com/ groups in Vienna,Basel and Dresden were supported by the ESP EuroCore Program naturecommunications MIME(I146-N16). Competing financial interests:The authors declare no competing financial interests Author contributions Reprints and permission information is available online at http://npg.nature.com/ S.G.and S.E.performed all interference experiments as well as the analysis of the reprintsandpermissions/ data with important contributions by M.T.M.A.contributed at various stages of the How to cite this article:Gerlich,S.et al.Quantum interference of large organic experiment.J.T.synthesized,purified and analysed the porphyrin derivatives based on a design developed together with M.M.P.E provided the perfluoroalkylated nanospheres. molecules.Nat.Commun.2:263 doi:10.1038/ncomms1263(2011). M.A.and M.M.initiated and coordinated the experiments.S.N.and K.H.participated in License:This work is licensed under a Creative Commons Attribution-NonCommercial- the interpretation of the data.M.A..S.G.and S.N.wrote the paper.All authors discussed NoDerivative Works 3.0 Unported License.To view a copy of this license,visit the results and commented on the manuscript. http://creativecommons.org/licenses/by-nc-nd/3.0/ NATURE COMMUNICATIONS 2:263 DOl:10.1038/ncomms1263 www.nature.com/naturecommunications 2011 Macmillan Publishers Limited.All rights reserved.ARTICLE  nature communications | DOI: 10.1038/ncomms1263 nature communications | 2:263 | DOI: 10.1038/ncomms1263 | www.nature.com/naturecommunications © 2011 Macmillan Publishers Limited. All rights reserved. program CoQuS (Grant W1210-N16). The chemical synthesis in Basel was funded by the Swiss National Science Foundation and the NCCR ‘Nanoscale Science’. The groups in Vienna, Basel and Dresden were supported by the ESF EuroCore Program MIME (I146-N16). Author contributions S.G. and S.E. performed all interference experiments as well as the analysis of the data with important contributions by M.T. M.A. contributed at various stages of the experiment. J.T. synthesized, purified and analysed the porphyrin derivatives based on a design developed together with M.M. P.F. provided the perfluoroalkylated nanospheres. M.A. and M.M. initiated and coordinated the experiments. S.N. and K.H. participated in the interpretation of the data. M.A., S.G. and S.N. wrote the paper. All authors discussed the results and commented on the manuscript. Additional information Supplementary Information accompanies this paper at http://www.nature.com/ naturecommunications Competing financial interests: The authors declare no competing financial interests. Reprints and permission information is available online at http://npg.nature.com/ reprintsandpermissions/ How to cite this article: Gerlich, S. et al. Quantum interference of large organic molecules. Nat. Commun. 2:263 doi: 10.1038/ncomms1263 (2011). License: This work is licensed under a Creative Commons Attribution-NonCommercial￾NoDerivative Works 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/