أرسل هذا في رسالة قصيرة: Recent progress in well-defined higher azaacenes (N ≥ 6) : synthesis, molecular packing, and applications

  ______    ______    ______     ___     _____    
 /_____//  /_   _//  /_   _//   / _ \\  |  __ \\  
 `____ `    -| ||-   `-| |,-   | / \ || | |  \ || 
 /___//     _| ||_     | ||    | \_/ || | |__/ || 
 `__ `     /_____//    |_||     \___//  |_____//  
 /_//      `-----`     `-`'     `---`    -----`   
 `-`