(Isocyano group)⋯lone pair interactions

(Isocyano group)⋯lone pair interactions involving coordinated isocyanides: experimental, theoretical and CSD studies




Inspection of the X-ray structure of the newly prepared trans-[PdCl(CNXyl)ACD] (ADC = XylNH–C=N–[5-iodo-2,6-dimethylpyrimidin-4-yl]) complex made possible the first identification of the π-hole interaction involving the nitrogen atom of coordinated isocyano group toward a lone pair. Processing of availible CSD data and results of DFT calculations revealed the possibility of two different sites for π-hole interaction involving isocyanides, i.e. both isocyano carbon and nitrogen centers are capable of acting as the π-hole donor toward the lone pairs.




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