發送短信 : Polyatomic molecules and aggregates of main group 15/16 elements in of organochromium chemistry

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