In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Action of halogens on ferrocenylgold-triphenylphosphine, published in 1971, which mentions a compound: 1273-73-0, mainly applied to ferrocenyl gold phosphine bromination, Reference of Bromoferrocene.
Ph3P.AuC5H4FeC5H5 (I) brominated in CCl4 at -20° to a blue, then yellow material and after evaporation gave 55% bromoferrocene and 18% biferrocenyl along with 70% Ph3P.AuBr. Similar results were obtained at -50° in CH2Cl2. I chlorinated as above to 26% chloroferrocene, 70% biferrocenyl, and 98% Ph3P.AuCl. Iodination gave 82% iodoferrocene and 89% Ph3P.AuI.
Although many compounds look similar to this compound(1273-73-0)Reference of Bromoferrocene, numerous studies have shown that this compound(SMILES:Br[C-]12[Fe+2]3456789([C-]%10C6=C7C8=C9%10)C1=C3C4=C25), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com