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

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Text this: Anharmonic coupling between fundamental modes in tetramethylurea