Constituent
Name
CH3CN - phase beta
Official name
beta-Acetonitrile
Family
molecular solid
Class
polar molecular solid
Compound type
nitrile
Chemical composition
Formula
β-CH3CN
Chemical formula
CH3CN
Elemental formula
C2 H3 N
Isotope mixture type
terrestrial abundance
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
CH3CN Acetonitrile molecule 1 1.0 1 pure main
Chemical functions
  Function Number Relevance
R-CH3 1 main
R-C ≡ N 1 main
Chemical bonds
  Bond Number Relevance
≥ C-H 3 main
-C≡ N 1 main
≥ N … H- 2
≡ C-C≤ 1 main
Class
molecular solids with polar molecules (02)
Type
with polyatomic organic polar molecules (CnHm...) (02.01)
Phase name
beta-acetonitrile (phase I)
Phase type
crystalline
Crystal system
orthorhombic
Crystal class
pyramidal
Crystal class symbol
mm2 (C2v)
Crystal spacegroup
Cmc2(1)
Molar mass
41.053 g/mol
Density
1.058 g/cm3
Refringence type
biaxial
Refraction index nα
1.459 @ 140K
Color
colorless
Diaphaneity
translucent
Luster
vitreous