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| CAS No.: | 1070-75-3 |
|---|---|
| Name: | dilithium acetylide |
| Molecular Structure: | |
|
|
|
| Formula: | C2Li2 |
| Molecular Weight: | 37.904 |
| Synonyms: | Dilithioacetylene;Dilithium acetylide; Dilithium carbide; Lithium acetylide; Lithium carbide(Li2(C2)) |
| Density: | g/cm3 |
| Boiling Point: | °Cat760mmHg |
| Flash Point: | °C |
| Safety: | Ignites and burns vigorously in fluorine, chlorine, phosphorus, selenium, or sulfur vapors. Ignites when heated in bromine or iodine vapors. When heated to decomposition it emits acrid smoke and fumes. See also LITHIUM COMPOUNDS and ACETYLIDES. |
| PSA: | 0.00000 |
| LogP: | 0.38760 |
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- 109-72-8, 29786-93-4
n-butyllithium
- 56862-34-1
N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine
A
- 149529-74-8
N-(α-methylbenzyl)pentylamine
B
- 1070-75-3
dilithium acetylide
| Conditions | Yield |
|---|---|
| Stage #1: n-butyllithium; N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine at 20℃; Stage #2: With methanol | A 80% B n/a |
- 188290-36-0
thiophene
- 56862-34-1
N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine
B
- 1070-75-3
dilithium acetylide
| Conditions | Yield |
|---|---|
| Stage #1: thiophene; N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine With lithium diisopropyl amide In diethyl ether at 0 - 20℃; Stage #2: With methanol | A 78% B n/a |
- 554-14-3
2-Methylthiophene
- 56862-34-1
N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine
B
- 1070-75-3
dilithium acetylide
| Conditions | Yield |
|---|---|
| Stage #1: 2-Methylthiophene; N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine With lithium diisopropyl amide In diethyl ether at 0 - 20℃; Stage #2: With methanol | A 77% B n/a |
- 109-72-8, 29786-93-4
n-butyllithium
A
- 149529-74-8
N-(α-methylbenzyl)pentylamine
B
- 1070-75-3
dilithium acetylide
| Conditions | Yield |
|---|---|
| Stage #1: n-butyllithium; N-(α-methylbenzyl)-3-(trimethylsilyl)-2-propynylamine at 20℃; Stage #2: With methanol | A 71% B n/a |
- 109-72-8, 29786-93-4
n-butyllithium
- 18292-76-7
N-(prop-2-yn-1-yl)cyclohexanamine
A
- 35152-42-2
N,N-cyclohexyl-n-pentylamine
B
- 1070-75-3
dilithium acetylide
| Conditions | Yield |
|---|---|
| Stage #1: n-butyllithium; N-(prop-2-yn-1-yl)cyclohexanamine at 20℃; Stage #2: With methanol | A 70% B n/a |
- 56-23-5
tetrachloromethane
- 7439-93-2
lithium
B
- 38827-81-5
ethenetetrayl-tetrakis-lithium
C
- 1070-75-3
dilithium acetylide
| Conditions | Yield |
|---|---|
| In neat (no solvent) reaction of an excess of gaseous Li with gaseous CCl4 at 800-1000°C (high vac.);; | A 10-18 B 61% C 20% |
| Conditions | Yield |
|---|---|
| Stage #1: furan; N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine With lithium diisopropyl amide In diethyl ether at 0 - 20℃; Stage #2: With methanol | A 58% B n/a |
- 56862-34-1
N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine
- 594-19-4
tert.-butyl lithium
B
- 1070-75-3
dilithium acetylide
| Conditions | Yield |
|---|---|
| Stage #1: N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine; tert.-butyl lithium at 20℃; Stage #2: With methanol | A 50% B n/a |
- 56862-34-1
N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine
- 591-51-5
phenyllithium
A
- 3193-62-2, 17480-69-2, 19302-20-6, 38235-77-7
N-benzyl-1-phenylethylamine
B
- 1070-75-3
dilithium acetylide
| Conditions | Yield |
|---|---|
| Stage #1: N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine; phenyllithium at 20℃; Stage #2: With methanol | A 39% B n/a |
- 2786-07-4
2-thienyl lithium
- 56862-34-1
N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine
B
- 1070-75-3
dilithium acetylide
| Conditions | Yield |
|---|---|
| Stage #1: 2-thienyl lithium; N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine at 20℃; Stage #2: With methanol | A 38% B n/a |
- Total:33 Page 1 of 1 1
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Chemistry
IUPAC: Dilithium acetylide
Lithium acetylide with CAS NO.of 1070-75-3 is also called for EINECS 213-980-1 ; CID66115 ; 1070-75-3 ; 1,2-Dilithioacetylene ; Dilithioacetylene ; Ethyne-1,2-diylbislithium ; Ethynylenebislithium and so on.
CAS: 1070-75-3
Molecular Formula: C2Li2
Molecular Weight: 37.9034
EINECS: 213-980-1
ACD/LogP: 0.37
ACD/LogD (pH 5.5): 0.37
ACD/LogD (pH 7.4): 0.37
ACD/BCF (pH 5.5): 1.13
ACD/BCF (pH 7.4): 1.13
ACD/KOC (pH 5.5): 37.87
ACD/KOC (pH 7.4): 37.87
H bond acceptors: 0
H bond donors: 0
Freely Rotating Bonds: 0
Heavy Atom Count: 4
Formal Charge: 0
Complexity: 12
Isotope Atom Count: 0
Defined Atom StereoCenter Count: 0
Undefined Atom StereoCenter Count: 0
Defined Bond StereoCenter Count: 0
Undefined Bond StereoCenter Count: 0
Covalently-Bonded Unit Count: 3
Enthalpy of Vaporization: 21.12 kJ/mol
Vapour Pressure: 69700 mmHg at 25°C
Density: 1.3 g/cm3
Melting Point: > 550°C
The molecular structure of Lithium acetylide with CAS NO.of 1070-75-3:
Uses
Lithium acetylide (CAS NO.1070-75-3) can be used in radiocarbon dating.
Production
Lithium acetylide (CAS NO.1070-75-3) can be prepared from the following two ways：
1.molten lithium + graphite are reacted at high temperature
2.carbon dioxide + molten lithium
Safety Profile
Ignites and burns vigorously in fluorine, chlorine, phosphorus, selenium, or sulfur vapors. Ignites when heated in bromine or iodine vapors. When heated to decomposition it emits acrid smoke and fumes. See also LITHIUM COMPOUNDS and ACETYLIDES.
Specification
Lithium acetylide with CAS NO.of 1070-75-3 is an ionic salt, it will transform reversibly to a cubic anti-fluorite structure at high temperatures.