What is this fluorinated organic substance? The corresponding author of the paper where this formula was published as appendix passed away. Can someone help me with identifying what is the name of this compound and why have strange zig-zag between Nitrogens
The name of the compound is 1-chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate) (CAS #: 140681-55-6), which is commonly known as Selectfluor, a trademark of Air Products and Chemicals (see Waylander's comment elsewhere). Different view of the compound is given below (to you to understand the zig-zag feature):



Introduced in 1992, this organic salt is used as a fluorine donor in organic synthesis (Ref.1). For example of using Selectfluor as a source of fluorine, see Ref.2:



References:


R. Eric Banks, Suad N. Mohialdin-Khaffaf, G. Sankar Lal, Iqbal Sharif, Robert G. Syvret, "1-Alkyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane salts: a novel family of electrophilic fluorinating agents," J. the Chem. Soc., Chem. Commun. 1992, (8), 595-596 (DOI: 10.1039/C39920000595).
Timothy J. Barker, Dale L. Boger, "$\ce{Fe(III)}$/$\ce{NaBH4}$-Mediated Free Radical Hydrofluorination of Unactivated Alkenes," J. Am. Chem. Soc. 2012, 134(33), 13588-13591 (https://doi.org/10.1021/ja3063716).