Original title: Preparation and Physicochemical Properties of [6]Helicenes Fluorinated at Terminal Rings.
Authors: Církva, Vladimír ; Jakubík, Pavel ; Žádný, Jaroslav ; Vacek, J. ; Strašák, Tomáš ; Hrbáč, J. ; Císařová, I. ; Storch, Jan
Document type: Papers
Conference/Event: Advances in Organic, Bioorganic and Pharmaceutical Chemistry LIBLICE 2018 /53./, Lázně Bělohrad (CZ), 20181102
Year: 2018
Language: eng
Abstract: Two fluorinated helicenes, tetrafluoro[6]helicene and octafluoro[6]helicene were prepared photochemically and their physicochemical and optical properties were investigated. A separation of racemic tetrafluoro[6]helicene into individual enantiomers (P and M) was performed and the racemization barrier was determined. Crystal structures of major synthetic products including individual enantiomers of tetrafluoro[6]helicene were determined showing the replacement of π-π and CH-π interactions by CH-F interactions with increasing fluorine substitution. DFT calculation were performed to get an insight into the charge distribution and HOMO-LUMO gap.
Keywords: fluorine; helicene; substitution
Project no.: GA17-02578S (CEP)
Funding provider: GA ČR
Host item entry: Book of Abstracts, ISBN N
Rights: This work is protected under the Copyright Act No. 121/2000 Coll.

Institution: Institute of Chemical Process Fundamentals AS ČR (web)
Original record: http://hdl.handle.net/11104/0289609

Permalink: http://www.nusl.cz/ntk/nusl-389951


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Research > Institutes ASCR > Institute of Chemical Process Fundamentals
Conference materials > Papers
 Record created 2018-11-26, last modified 2023-12-11


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