Synthetic and Structural Study of peri-Substituted Phosphine-Arsines.

ABSTRACT: A series of phosphorus-arsenic peri-substituted acenaphthene species have been isolated and fully characterised, including single crystal X-ray diffraction. Reactions of EBr₃ (E = P, As) with iPr₂PAcenapLi (Acenap = acenaphthene-5,6-diyl) afforded the thermally stable peri-substitution supported donor-acceptor complexes, iPr₂PAcenapEBr₂3 and 4. Both complexes show a strong P→E dative interaction, as observed by X-ray crystallography and ³¹P NMR spectroscopy. DFT calculations indicated the unusual As∙∙∙As contact (3.50 Å) observed in the solid state structure of 4 results from dispersion forces rather than metallic interactions. Incorporation of the excess AsBr₃ in the crystal

SUBMITTER: Chalmers BA 

PROVIDER: S-EPMC8658757 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature