Text this: Polarized Cu-Bi site pairs for non-covalent to covalent interaction tuning toward N₂ photoreduction

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