Role of NH4 and H2O in Tutton Salt (NH4)2M(SO4)2·6H2O (M=Fe and Zn) Single Crystals Studied by 1H and 14N NMR at High Temperatures

Sung Soo Park, Ae Ran Lim
2017 Journal of the Korean Magnetic Resonance Society  
At high temperature, the roles of NH 4 and H 2 O in (NH 4 ) 2 Fe(SO 4 ) 2 ·6H 2 O and (NH 4 ) 2 Zn(SO 4 ) 2 ·6H 2 O single crystals were investigated using a pulse NMR spectrometer. Temperature was shown to have a significant influence, causing changes in the deformation of NH 4 and H 2 O. From the 1 H NMR and 14 N NMR spectrum, the forms of environment surrounding 14 N in NH 4 groups is more important than the loss of H 2 O groups. NMR studies indicate that NH 4 + ions in Tutton salts play an
more » ... mportant role in the changes of the crystal structure at high temperatures.
doi:10.6564/jkmrs.2017.21.2.067 fatcat:tsxmy4ln35e3hapxnwgjap4zn4