Text this: Selective dissociation of 4-Chloroaniline on the Si(111)-7×7 Surface through N-H bond breakage

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