AI Article Synopsis
- A series of phosphorus-arsenic-substituted acenaphthene compounds were synthesized and characterized through techniques like X-ray diffraction and NMR spectroscopy, showcasing strong interactions between phosphorus and arsenic.
- The formation of donor-acceptor complexes, such as PrPAcenapEBr, demonstrated unique As∙∙∙As contacts attributed to dispersion forces rather than metallic bonding, as indicated by DFT calculations.
- Additionally, further reactions led to the creation of tertiary arsine compounds and heterocubane dianions involving arsenic bromide, expanding the range of materials synthesized in this study.
Article Abstract
A series of phosphorus-arsenic -substituted acenaphthene species have been isolated and fully characterised, including single crystal X-ray diffraction. Reactions of EBr (E = P, As) with PrPAcenapLi (Acenap = acenaphthene-5,6-diyl) afforded the thermally stable -substitution supported donor-acceptor complexes, PrPAcenapEBr and . Both complexes show a strong P→E dative interaction, as observed by X-ray crystallography and P NMR spectroscopy. DFT calculations indicated the unusual As∙∙∙As contact (3.50 Å) observed in the solid state structure of results from dispersion forces rather than metallic interactions. Incorporation of the excess AsBr in the crystal structure of promotes the formation of the ion separated species [PrPAcenapAsBr]Br . A decomposition product containing the rare [AsBr] heterocubane dianion was isolated and characterised crystallographically. The reaction between PrPAcenapLi and EtAsI afforded tertiary arsine (BrAcenap)AsEt , which was subsequently lithiated and reacted with PhPCl and PhPCl to afford cyclic PhP(Acenap)AsEt and acyclic EtAs(AcenapPPh) .
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8658757 | PMC |
| http://dx.doi.org/10.3390/molecules26237222 | DOI Listing |
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