skip to main content
US FlagAn official website of the United States government
dot gov icon
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
https lock icon
Secure .gov websites use HTTPS
A lock ( lock ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.


Search for: All records

Creators/Authors contains: "McCormack, Megan E"

Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).
What is a DOI Number?

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

  1. A unique trimeric radical cation with unequal charge distribution is obtained by chemical oxidation of triphenylene with GaCl3. XRD determined structure is combined with computational modeling showing stabilizing pancake bonding in the π-stacks. 
    more » « less
  2. Unusual intermolecular π-stacking in a new charge transfer salt of pyrene (Py), (Py) 2 + (Ga 2 Cl 7 ) − , has been observed. The structure obtained by single crystal X-ray crystallography indicates π-stacks of pyrene which were analyzed using a combination of density functional theory and the analysis of the bond length alternation patterns in the pyrene molecules in different charge states. There are relatively few crystal structures of charge transfer salts of pyrene in the literature, and this structure shows a unique charge separation in which half of the pyrenes are nearly neutral while the other half carry approximately +1 charge in an alternating fashion along the 1D stacks balancing one electron charge transfer to each (Ga 2 Cl 7 ) − anion. The charge localization is attributed to the incomplete inter-pyrene overlap of the singly occupied molecular orbitals. 
    more » « less