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Trimethylgallium

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Name

Trimethylgallium

EINECS 215-897-6
CAS No. 1445-79-0 Density 1.151 g/cm3
PSA 0.00000 LogP 1.37060
Solubility N/A Melting Point -15.8 °C
Formula C3H9Ga Boiling Point 55.7 °C
Molecular Weight 114.827 Flash Point -18 °C
Transport Information UN 2845 Appearance COA
Safety 7-16-43-45 Risk Codes 14-17-34
Molecular Structure Molecular Structure of 1445-79-0 (TRIMETHYLGALLIUM) Hazard Symbols F,C
Synonyms

Trimethylgallium ((CH3)3Ga);Trimethylgallane;

Article Data 67

Trimethylgallium Synthetic route

(Me3Ga)3*triphos

1445-79-0

trimethyl gallium

Conditions
ConditionsYield
In neat (no solvent) heated slowly under 1E-2 mmHg in a trap-to-trap distillation apparatus (receiver flask at -196 °C), liberation of Me3Ga started at 50 °C, temp. was raised to 120 °C;; distillate contained benzene;;100%

gallium(III) trichloride

75-24-1

trimethylaluminum

7647-14-5

sodium chloride

A

Na(1+)*CH3AlCl3(1-)

B

1445-79-0

trimethyl gallium

Conditions
ConditionsYield
at 120 - 145℃; Solvent; Temperature;A n/a
B 98%
7440-55-3

gallium

methyl aluminium sesquichloride

A

75-24-1

trimethylaluminum

B

1445-79-0

trimethyl gallium

Conditions
ConditionsYield
With methylene chloride; sodium at 40 - 50℃; under 375.038 Torr; Inert atmosphere; Flow reactor;A 93.7%
B 96.8%

gallium(III) trichloride

75-24-1

trimethylaluminum

1445-79-0

trimethyl gallium

Conditions
ConditionsYield
With tridodecylamine In 5,5-dimethyl-1,3-cyclohexadiene at 100℃; for 1h;93.3%
Stage #1: gallium(III) trichloride With triethylaluminum Heating;
Stage #2: trimethylaluminum at 160℃;
85%
Stage #1: trimethylaluminum With triethylamine In toluene at 25 - 100℃; for 1h;
Stage #2: gallium(III) trichloride In toluene Product distribution / selectivity;
81%

(Me3Ga)4*tetraphos

1445-79-0

trimethyl gallium

Conditions
ConditionsYield
In neat (no solvent) heated slowly under 1E-2 mmHg in a trap-to-trap distillation apparatus (receiver flask at -196 °C), liberation of Me3Ga started at 65 °C, proceeded rapidly at 120-130 °C;; contained traces of benzene;;93%
7440-55-3

gallium

74-88-4

methyl iodide

1445-79-0

trimethyl gallium

Conditions
ConditionsYield
Stage #1: gallium With magnesium at 60℃; for 1h; Inert atmosphere;
Stage #2: methyl iodide In 1,3,5-trimethyl-benzene at 60 - 190℃; for 3.66h;
92%
With magnesium In neat (no solvent) byproducts: MgI2; inert atm.; heating (autoclave, 120-160°C, 12 h); distn.;65%
7440-55-3

gallium

917-64-6

methyl magnesium iodide

7553-56-2

iodine

74-88-4

methyl iodide

1445-79-0

trimethyl gallium

Conditions
ConditionsYield
Stage #1: gallium; iodine; methyl iodide In toluene at 40 - 50℃; for 6h; Inert atmosphere; Sonication;
Stage #2: methyl magnesium iodide In toluene at 100 - 110℃; for 5h; Inert atmosphere;
92%
75-24-1

trimethylaluminum

1115-99-7

triethyl gallium

1445-79-0

trimethyl gallium

Conditions
ConditionsYield
at 20 - 140℃; Glovebox; Inert atmosphere;92%

(Me3Ga)2*diphos

1445-79-0

trimethyl gallium

Conditions
ConditionsYield
In neat (no solvent) heated slowly under 1E-2 mmHg in a trap-to-trap distillation apparatus (receiver flask at -196 °C), liberation of Me3Ga started at 85 °C, the rate was more satisfactory at 110-130 °C;;91%
75-24-1

trimethylaluminum

13450-90-3

Gallium trichloride

1445-79-0

trimethyl gallium

Conditions
ConditionsYield
Reflux;90%
In neat (no solvent) warming the mixt. of GaCl3 and trimethylaluminum from 233 K to room temp., stirring for 90 min; vaporization of volatiles in vac., fractional condensation at 178 K; IR;
Stage #1: trimethylaluminum at 80 - 85℃; under 187.519 Torr; for 0.5h;
Stage #2: Gallium trichloride at 80 - 90℃; for 0.5h;

Trimethylgallium Specification

The Trimethyl gallium with CAS registry number of 1445-79-0 is also called Gallium, trimethyl-. Its EINECS registry number is 215-897-6. The IUPAC name is trimethylgallane. In addition, the molecular formula is C3H9Ga and the molecular weight is 114.83.

Physical properties about this chemical are: (1)Exact Mass: 113.996006; (2)MonoIsotopic Mass: 113.996006; (3)Heavy Atom Count: 4; (4)Complexity: 8; (5)Covalently-Bonded Unit Count: 1.

Preparation of Trimethyl gallium: The methylmagnesium iodide can react with gallium trichloride to give trimethylgallium ether. Then trimethylgallium ether can disintegrate to get the product. And you get the high purity trimethyl gallium through the operation of distillation, separation, distillation and purification.

Uses of Trimethyl gallium: this chemical can be used for metal organic chemical vapor deposition (MOCVD) and in preparation of semiconductor compounds such as GaAs and AsGaAl. Besides, it can be used in the manufacture of solar cells. In addition, it can react with benzylideneacetone to get 3-(1-phenylethyl)pentane-2,4-dione. This reaction will need solvent diethyl ether. The yield is about 71%.

Trimethyl gallium can react with benzylideneacetone to get 3-(1-phenylethyl)pentane-2,4-dione

When you are using this chemical, please be cautious about it as the following:
It is spontaneously flammable in air and can react violently with water. And it can cause burns. In case of fire, use ... (indicate in the space the precise type of fire-fighting equipment. If water increases the risk add - Never use water). And in case of accident or if you feel unwell, seek medical advice immediately (show label where possible). You should keep container tightly closed and keep away from sources of ignition - No smoking.

You can still convert the following datas into molecular structure:
(1)SMILES: [Ga](C)(C)C
(2)InChI: InChI=1/3CH3.Ga/h3*1H3;/rC3H9Ga/c1-4(2)3/h1-3H3
(3)InChIKey: XCZXGTMEAKBVPV-YHXBHQJBAF

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