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CAS No.: | 12136-60-6 |
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Name: | LITHIUM SELENIDE |
Article Data: | 32 |
Molecular Structure: | |
Formula: | Li2Se |
Molecular Weight: | 92.842 |
Synonyms: | Dilithiummonoselenide; Dilithium selenide; Lithium selenide |
Density: | g/cm3 |
Melting Point: | 1302 °C |
Boiling Point: | °Cat760mmHg |
Flash Point: | °C |
PSA: | 0.00000 |
LogP: | -0.38080 |
Conditions | Yield |
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In ammonia addn. of Se to a soln. of Li in liq. NH3 at -33°C, formation of Li2Se;; | |
In ammonia -33°C, fast reaction;; | |
In ammonia NH3 (liquid); react. of Li and Se in liq. NH3; |
Conditions | Yield |
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In ammonia NH3 (liquid); react. of the components in a 1:16 Li:Se8 ratio (Ar); evapn. of the liq. NH3 in a dry and oxygen-free Ar-stream and washing with THF; |
Conditions | Yield |
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In tetrahydrofuran (Ar); addn. of selenium to a soln. of boron compd. in THF with stirring; | |
In tetrahydrofuran Se powder (1.5 mmol) was added to a soln. of B-contg. compd. in THF; | |
In tetrahydrofuran byproducts: B(C2H5)3, H2; |
Conditions | Yield |
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In melt byproducts: polyselenides; treatment of Li2CO3 with H2Se;; not pure, containing max. 92 % Li2Se;; |
lithium selenide
Conditions | Yield |
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In melt byproducts: H2O, polyselenides; heating in stream of H2;; not pure, containing max. 92 % Li2Se;; |
lithium selenide
Conditions | Yield |
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With pyrographite In melt byproducts: polyselenides; not pure, containing max. 92 % Li2Se;; | |
With coal |
lithium triethylborohydride
lithium selenide
Conditions | Yield |
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In tetrahydrofuran |
Conditions | Yield |
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With air at 20℃; for 0.5h; |
Conditions | Yield |
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at 750℃; under 0.000750075 Torr; Inert atmosphere; Glovebox; Sealed tube; |
Conditions | Yield |
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In melt (N2, glovebox) Li2Se, Na2Se, As and Se were loaded into a fused-silica tube, the tube was flame-sealed under vac. and melted over a flame until all mixt. became a black melt, quenched in water; EDS, SEM; | A n/a B 98% |