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 Synthesis, structural characterization, and bonding analysis of two-coordinate copper(I) and silver(I) complexes of pyrrole-based bis(phosphinimine): new metal-pyrrole ring π-interactions, published in 2021, which mentions a compound: 2923-28-6, mainly applied to copper silver pyrrole phosphinimine complex preparation crystal mol structure; electron density aromaticity copper silver pyrrole phosphinimine complex, COA of Formula: CAgF3O3S.
The reaction between 2,5-bis(diphenylphosphinomethyl)pyrrole and Me3SiN3 gave the new pyrrole-based bis(phosphinimine) L1H in an excellent yield. L1H reacts with [CuCl(COD)]2, AgBF4, or AgOTf to give the corresponding two-coordinate mononuclear ionic complex formulated as [M{(L1H)-κ2N,N}]+[X]- where M = Cu and Ag; X = [CuCl2], BF4 or OTf. Their single crystal x-ray diffraction studies confirmed the two-coordinate geometry formed by the chelate bonding mode of L1H. These 10-membered metalacycles exhibit planar chirality and were also characterized by spectroscopic methods. In addition, in all three structures, there exists a hitherto unknown π-interaction between the pyrrole ring atoms and metal, represented as η2-(Cα-N) in the copper(I) complex, and η3-(Cα-N-Cα’) in the silver(I) complexes. These weak interactions were supported by DFT calculations in terms of their electron densities, non-covalent interaction plots and the decrease in the aromaticity of the pyrrole ring.
If you want to learn more about this compound(Silver(I) trifluoromethanesulfonate)COA of Formula: CAgF3O3S, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(2923-28-6).
Reference:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem