Dissection of H-bonding interactions in a glycolic acid–water dimer

, a much better accuracy than previous reports. Furthermore, correlating the infrared spectra of 9HFCA H-bonded complexes provides a circumstantial probing of the existence and consequences of cooperative and anti-cooperative behaviors in the glycolic acid-water dimer. Our studies point to the interesting H-bonding phenomena in the glycolic acid-water dimer, which may inspire challenging experiments in future.