in toluene Ar or N2 atmosphere; 100 molequiv. of S8, stirring (room temp., 1h), pptn.; crystn. of Cr2(cp)2(CO)4S from mother-liqour; NMR-, IR- and mas spectroscopy;

in toluene Ar or N2 atmosphere; 31.3 molequiv. of S8, stirring (room temp., 3 h), removal of excess of S8 (filtration); further products; conc., crystn. on cooling, mixt. (not sepn., mas spectroscopy), further conc. of mother-liqour and cooling (-30°C), mixt. (not sepn., mas spectroscopy), crystn. on hexane adnn. to mother liqour and cooling (-30°C, overnight); t.l.c.;

in melt sulphur and selenium were mixed together in molar ratio 70:30, 65:35, 60:40 heated in sealed ampules under reduced pressure (ca. 0.01 kPa) at 770 K for 4 h and quenched at liq. N2 temp.; further products; various product ratio for various conditions;; the resulting amorphous materials were extd. with CS2, after which the solvent was evapd.;;

in melt sulphur and selenium were mixed together in molar ratio 90:10, heated in sealed ampules under reduced pressure (ca. 0.01 kPa) at 770 K for 4 h and quenched at liq. N2 temp.; further products;; the resulting amorphous materials were extd. with CS2, after which the solvent was evapd.;;

in melt sulphur and selenium were mixed together in molar ratio 90:10, heated in sealed ampules under reduced pressure (ca. 0.01 kPa) at 770 K for 4 h and quenched at liq. N2 temp.; further products;; the resulting amorphous materials were extd. with CS2, after which the solvent was evapd.;;

in dichloromethane dry Ar-atmosphere; equimolar amts., 23°C, stirring for 12 min (pptn.); further products: 1,2,3-, 1,2,4- and 1,2,5-Se3S5, 1,2,3,4-Se4Se4, 1,2,3-Se5S3; collection (filtration); product mixt. not sepd., detd. by (77)Se-NMR spectroscopy;

in melt sulphur and selenium were mixed together in molar ratio 70:30, 65:35, 60:40 heated in sealed ampules under reduced pressure (ca. 0.01 kPa) at 770 K for 4 h and quenched at liq. N2 temp.; further products; various product ratio for various conditions;; the resulting amorphous materials were extd. with CS2, after which the solvent was evapd.;;

in melt heating excess sulfur and selenium in evacuated ampoule at 430°C (4 h); not isolated; detn. by (77)Se-NMR spectroscopy;

in neat (no solvent) sample is heated to 51°C, kept at this temp. for 1 min and quenched to 20°C; extn. with CS2, HPLC analysis;

in melt melting in evacuated tube at 400°C for 5 h; extrn. with benzene in Soxhlet apparatus at 25°C for 2 weeks, dissolved in mixt. of C6H6-CS2, crystn., elem. anal.;