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Open AccessArticle

(Perylene)3-(TCNQF1)2: Yet Another Member in the Series of Perylene–TCNQFx Polymorphic Charge Transfer Crystals

Dipartimento di Chimica Industriale “Toso Montanari”, Università di Bologna and INSTM UdR Bologna, Viale Risorgimento, 40136 Bologna, Italy
Department of Molecular Nanoscience and Organic Materials, Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) and (CIBER-BBN), Campus de la UAB, 09193 Bellaterra, Spain
Material and Chemical Characterization facility (MC2), University of Bath, Claverton Down, Bath BA2 7AY, UK
Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale (SCVSA), Università di Parma and INSTM-UdR Parma, Parco Area delle Scienze 17/a, 43124 Parma, Italy
Authors to whom correspondence should be addressed.
Crystals 2020, 10(3), 177;
Received: 18 February 2020 / Revised: 2 March 2020 / Accepted: 4 March 2020 / Published: 6 March 2020
(This article belongs to the Special Issue Charge Transfer Crystals)
The 3:2 Charge Transfer (CT) co-crystal (Perylene)3(TCNQF1)2 is grown by the Physical Vapor Transport (PVT) method, and characterized structurally and spectroscopically. Infrared analysis of the charge sensitive modes reveals a low degree of charge transfer (less than 0.1) between donor and acceptor molecules. The crystal is isostructural to the other 3:2 CT crystals formed by Perylene with TCNQF2 and TCNQF4, whereas such stoichiometry and packing is not known for the CT crystals with non-fluorinated TCNQ. The analysis of the isostructural family of 3:2 Perylene–TCNQFx (x = 1,2,4) co-crystal put in evidence the role of weak FHC bonding in stabilizing this type of structure View Full-Text
Keywords: charge transfer crystals; X-ray diffraction; vibrational spectroscopy charge transfer crystals; X-ray diffraction; vibrational spectroscopy
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Salzillo, T.; Valle, R.G.D.; Venuti, E.; Brillante, A.; Kociok-Köhn, G.; Di Nuzzo, D.; Masino, M.; Girlando, A. (Perylene)3-(TCNQF1)2: Yet Another Member in the Series of Perylene–TCNQFx Polymorphic Charge Transfer Crystals. Crystals 2020, 10, 177.

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