發送短信

數:

提供者:

CAPTCHA:

  _____    __   __   _    _      ___              
 / ____||  \ \\/ // | |  | ||   / _ \\    ____    
/ //---`'   \ ` //  | |/\| ||  / //\ \\  |    \\  
\ \\___      | ||   |  /\  || |  ___  || | [] ||  
 \_____||    |_||   |_// \_|| |_||  |_|| |  __//  
  `----`     `-`'   `-`   `-` `-`   `-`  |_|`-`   
                                         `-`

Please enter what you see:

發送短信 : The original coordination chemistry of 2-phosphaphenol with copper(I) and gold(I) halides