cyclophane

Two benzene rings attached by C₂H₂ bridges, so the composition is C₁₄H₁₆. It is, of course, one of those "look what I can do!" sort of molecules with little or no application. A bit like a buckyball, really. :)

    
          _______
         /       \
     ___/         \___
    |   \         /   |
    |    \_______/    |
    |     _______     |
    |    /       \    |
    |___/         \___|
        \         /
         \_______/

The ring in the two benzenes are not shown.