Solid phase
Official name
Pyrene
Secondary names
Benzophenanthrene
CAS number
129-00-0
Type
Family
molecular solid
Class
mixed molecular solid
Compound type
organic molecular solid
Chemical composition
Formula
$C_{16}H_{10}$
Chemical formula
C16H10
Elemental formula
C16 H10
Isotope mixture type
terrestrial abundance
2.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$C_{16}H_{10}$ Pyrene molecule 1 1.0 1.0 pure main
Chemical functions
  Function Number
$R=CH-R$ 10
Chemical bonds
  Bond Number
$\eqslantgtr C-H$ 10
$\eqslantgtr C-C\eqslantless$ 11
$>C=C<$ 8
Class
molecular solids with apolar molecules (01)
Phase type
crystalline
Crystal system
monoclinic
Crystal class
prismatic
Crystal class symbol
2/m (C2h)
Crystal spacegroup
P2(1)/c
Molar mass
202.26 $g/mol$
Density
1.271 $g/cm^3$
State NTP
solid
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid-liquid liquid 418-421 K
Pure color
colorless
Color
yellow
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