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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