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Updated: Jan 27, 2026

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
An untethered C3v-symmetric triarylphosphine oxide locked by intermolecular hydrogen bonding
Timothy G Carroll1, Camden Hunt, Rachel Garwick
1Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106, USA. menard@chem.ucsb.edu.
Abstract:
A para-substituted triphenylphosphine oxide with terminal vanadocene centers has been prepared and is, to our knowledge, the first example of an untethered C3v-symmetric triarylphosphine oxide in the solid state. Crystallographic and DFT studies suggest this locked conformation is due to intermolecular H-bonding interactions. Electrochemical measurements suggest these interactions may persist in solution. A monometallic variant, adopting the standard C3 propeller geometry, has also been synthesized for comparison.
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