發送短信 : 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

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