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__    __   _    _    ______      ___     _    _   
\ \\ / // | || | || |      \\   / _ \\  | |  | || 
 \ \/ //  | || | || |  --  //  | / \ || | |/\| || 
  \  //   | \\_/ || |  --  \\  | \_/ || |  /\  || 
   \//     \____//  |______//   \___//  |_// \_|| 
    `       `---`   `------`    `---`   `-`   `-`

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Text this: Conformational Analysis of (±)-(1,1′-Biindene)-3,3′ -dione, 2,2′,3,3′-Tetrahydro-(1,1′-binaphthalene)-4,4′ (1H,1′H)-dione, and (1,1′-Bibenzosuberene)-5,5′-dione