Tetramethylsilane

Si(CH₃)₄

IUPAC: Tetramethylsilane

CAS: 75-76-3

Overview

TMS is the universal internal reference standard for NMR spectroscopy, defining the zero point on the chemical shift scale.

Composition

Element	Symbol	Atoms	Atomic Mass
Hydrogen	H	12	1.0080
Carbon	C	4	12.0110
Silicon	Si	1	28.0850

Elemental Composition

Hydrogen ×12

13.7%

Carbon ×4

54.5%

Silicon ×1

31.8%

Uses

• NMR reference standard
• Chemical vapor deposition precursor

Fun Facts

✦ Every NMR spectrum in chemistry uses TMS as the zero reference point

Safety

⚠ Extremely flammable
⚠ Irritant

Structure

SMILES

C[Si](C)(C)C

Properties

Type: organic
State: liquid
Molar Mass: 88.22 g/mol
Density: 0.6480 g/cm³
Melting Point: -99.1 °C
Boiling Point: 26.3 °C
Solubility: insoluble

Molecular Descriptors

Exact Mass: 88.0708
TPSA: 0.0 Å²
H-Bond Donors: 0
H-Bond Acceptors: 0
Rotatable Bonds: 0
Heavy Atoms: 5
Complexity: 19.0

Related Compounds

1,2-Dichloroethane

C₂H₄Cl₂

1,3-Butadiene

C₄H₆

1,4-Dioxane

C₄H₈O₂

1-Butanol

C₄H₁₀O

2-Propanol

C₃H₈O

Acetaldehyde

CH₃CHO

Acetamide

C₂H₅NO

Acetic Anhydride

C₄H₆O₃

Acetone

(CH₃)₂CO

Acetonitrile

C₂H₃N

Frequently Asked Questions

What is Tetramethylsilane?

Tetramethylsilane (Si(CH₃)₄) is a organic compound with the IUPAC name Tetramethylsilane.

What is the molecular weight of Tetramethylsilane?

Tetramethylsilane has a molar mass of 88.22 g/mol.

What state is Tetramethylsilane at room temperature?

Tetramethylsilane is a liquid at room temperature.

Is Tetramethylsilane organic or inorganic?

Tetramethylsilane is classified as an organic compound.

What elements make up Tetramethylsilane?

Tetramethylsilane (Si(CH₃)₄) is composed of Hydrogen (H), Carbon (C), Silicon (Si).