New alkaline-earth amidosulfates and their unexpected decomposition to S₄N₄

Abstract

The amidosulphates Mg(NH 2 SO 3 ) 2 · 4 H 2 O (P2 1 /c), Mg(NH 2 SO 3 ) 2 · 3 H 2 O (P 1̄), Ca(NH...

Cd(NH2SO3)2·xH2O (x= 0, 2): new sulfamates with a unique coordination environment and reversible phase transitions

“…Among the reported sulfamates, the K–N, Rb–N, Cs–N, Sr–N and Ba–N bonds were observed. However, except for the Sr–N bonds in Sr(NH 2 SO 3 ) 2 ( P 2 1 ), 58 as well as the K–N bonds in LiK(NH 2 SO 3 ) 2 , 63 all of the M–N bonds are longer than 3.0 Å with very weak interactions. To understand the relationship between the metal cations and the configuration of [MO x ] polyhedra, the existing 6-coordinate octahedra including [NaO 6 ], [MgO 6 ] and [CdO 4 N 2 ] were compared and discussed based on the HSAB theory.…”

“…4b). The vibration peaks were assigned and are tabulated in Table S11 † according to the calculated and experimental IR vibrations proposed by Höppe et al 58 The similarity and differences between them can be clearly observed. As the most typical difference of the existing water molecules between Cd(NH 2 SO 3 ) 2 •2H 2 O and Cd(NH 2 SO 3 ) 2 , the peaks at 3441 cm −1 and 3368 cm −1 in Cd(NH 2 SO 3 ) 2 •2H 2 O can be assigned to the stretching vibrations of H 2 O, while the peak at 1622 cm −1 is attributed to the bending vibration of H 2 O.…”

Deep‐Ultraviolet Transparent Mixed Metal Sulfamates with Enhanced Nonlinear Optical Properties and Birefringence

“…IR spectra were collected to identify the functional units present in the three compounds (Figure S7). The vibration peaks were assigned and are listed in Table S15, based on previously reported calculated and experimental IR vibrations [7b,10] . Notable distinctions among compounds 1 , 2 , and 3 are evident upon comparison.…”