I have a sample with magnesium, potassium, phosphate and water. I have found a peak around 3750, is it possible to consider magnesium with OH bound in IR for this peak?
3600–3750 cm-1 relate to the OH stretching vibration.
Reference: (The structural OH mainly appears as characteristic peaks in four regions, 500–720, 3600–3750, 4000–4600, and 7000–7600 cm−1 , corresponding to the OH bending vibration, the OH stretching vibration, the OH secondary combination vibration, and the OH overtone vibration, respectively, Development of FTIR spectroscopy Methodology for ... - MDPI https://www.mdpi.com › 11 ›)