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Geminal Charge-Assisted Tetrel Bonds in Bis-Pyridinium Methylene Salts. | LitMetric

Geminal Charge-Assisted Tetrel Bonds in Bis-Pyridinium Methylene Salts.

Cryst Growth Des

NFMLab, Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, 20133 Milano, Italy.

Published: March 2023

C(sp) atoms are known to act as electrophilic sites in self-assembly processes, and in all cases reported till now, they form only one interaction with nucleophiles; that is, they function as monodentate tetrel bond donors. This manuscript reports experimental (X-ray structural analysis) and theoretical evidence (DFT calculations), proving that the methylene carbon in bis-pyridinium methylene salts establishes two short and directional C(sp)···anion interactions; that is, they function as bidentate tetrel bond donors.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10324100PMC
http://dx.doi.org/10.1021/acs.cgd.2c01386DOI Listing

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