Liquid ammonia solutions. V. Solutions of hydrogen sulfide

Synthesis and characterization of sodium polyselenides in liquid ammonia solution

“…2700 A is the solvated HS" ion which can be represented as ~SH-NH3 or S2"-NH4+. 36 The analogous selenide species, in a H2Se solution, would be -SeH-NHj or Se2"-.NH4+.…”

“…Both spectra exhibit characteristics similar to the iodide ion absorption in liquid ammonia,33 which is associated with a charge-transfer-to-solvent transition.34•35 Furthermore, a band in the spectra of K2S and H2S in liquid ammonia has also been assigned to a CTTS transition 36. One prominent feature of any CTTS band is the decrease in energy of the absorption i v i d u a l n o t d i r e c t l y a s s o c i a t e d w i t h s c i t e i s p r o h i b i t e d .…”

Identification and characterization of ammonium polysulfides in solution in liquid ammonia

“…Figure 9 compares the degrees of disproportionation of the polysulfides in ammonia by using log Kx for (10), (11), and (12) and the quantity A = log ([S32"][HS][S22"]"2) for (19). A is pH dependent and has to be used for all values of pH in water and for pH <5.8 in ammonia.…”

Liquid ammonia solutions. VI. Sulfur and tetrasulfur tetranitride (S4N4)

“…Solutions containing both H2S and S4N4 were prepared by adding a weighed quantity of the latter to a previously prepared solution of H2S. 13…”