Silicon sulfides, SiS

Silicon sulfide (SiS) Strontiim sulfide (SrS) Strontium sulfide (SrS) Sulfur (Sg)... 

Silicon sulfide (SiS ) Silicon sulfide (SiSg) Silicon sulfide (SiSg) Sulfur (S )... 

A diatomic silylene of astrophysical interest, silicon sulfide S=Si , was treated by a three-stage calculation221. MOs from an HF-SCF treatment were employed in a complete active space SCF calculation whose optimized MOs were in turn used for a Cl calculation that included as many as three million configurations Comparison of various spectroscopic constants with those from experiment revealed fair agreement221. 

Silicon monosulfide, SiS, is formed if CS2 gas is passed over silicon heated to 1270 K. Its matrix chemistry shows a strong resemblance to that of SiO. Thus, it reacts with CI2 to yield SSiCl2 and with O atoms to form OSiS, the silicon analog of carbonyl sulfide. The latter molecule is of interest since it is shown to contain both Si=0 and Si=S double bonds, while both experimental observations and ab initio calculations confirm the double bond nature of the Si=S linkage in SSiCb. 

Silicon sulfide is the base material for a novel class of fast Li conductors for use in solid state battery applications [124, 125]. The material also can be used in infrared transparent fibers and films [126, 127]. A compound of the composition SiS iH (j =... 

Only sulfide chlorides of silicon have thus far been described (e.g., 143). Among these, a nonvolatile compound, Si2S3Cl2, was mentioned (351), but no details were given. Areas of vitrification have heen found in the systems Si-S-Br (185), Si-S-I (185), Si-Se-Br (185), and Si-... 

Trimethyl(trifluoromethyl)silane can be converted into tributyl(trifluoromethyl)tin (40) in quantitative yield by treatment with bis(tributyltin) oxide in tetrahydrofuran under fluoride ion initiation. Tributyl(trifluoromethyl)tin readily trifluoromethylates disilyl sulfides at room temperature giving the corresponding trifluoromethylated di- and trialkylsilancs 41 in high yields. This method provides a new approach for the preparation of silicon-based trifluoro-methylating reagents via transtrifluoromethylation of compounds containing Si — S bonds. 

---