Triple-Pnictogen Bonding as a Tool for Supramolecular Assembly

Shiva Moaven, Miranda C. Andrews, Thomas J. Polaske, Brian M. Karl, Daniel K. Unruh, Eric Bosch, Nathan P. Bowling, Anthony F. Cozzolino

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


Supramolecular assembly utilizing simultaneous formation of three pnictogen bonds around a single antimony vertex was explored via X-ray crystallography, solution NMR, and computational chemistry. An arylethynyl (AE) ligand was designed to complement the three electrophilic regions around the Sb compound. Though solution studies reveal large binding constants for individual pyridyl units with the Sb donor, the rigidity and prearrangement of the AE acceptor proved necessary to achieve simultaneous binding of three acceptors to the Sb-centered pnictogen-bond donor. Calculations and X-ray structures suggest that negative cooperativity upon sequential binding of three acceptors to a Sb center limits the utility of triple-pnictogen bonding pyridyl acceptors. These limitations can be negated, however, when positive cooperativity is designed into a complementary acceptor ligand.

Original languageEnglish
Pages (from-to)16227-16235
Number of pages9
JournalInorganic Chemistry
Issue number23
StatePublished - Dec 2 2019


Dive into the research topics of 'Triple-Pnictogen Bonding as a Tool for Supramolecular Assembly'. Together they form a unique fingerprint.

Cite this