1,1-Dimethylallene

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Properties Simple | Detailed

Formula C5H8
IUPAC Name 3-methylbuta-1,2-diene
Molecular Mass 68.117 g·mol−1
Heat of Formation 85.5 ± 16.7 kJ·mol−1
Dipole Moment 0.78 ± 1.08 D
Volume 111.15 Å 3
Surface Area 126.25 Å 2
HOMO Energy -9.37 ± 0.55 eV
LUMO Energy 1.11 ± eV
Point Group Symmetry C2v
Synonyms
  • 1,1-dimethylallylene
  • 1,2-butadiene, 3-methyl-
  • 1,2-butadiene, 3-methyl- (8ci)(9ci)
  • 2-methyl-2,3-butadiene
  • 3,3-dimethylallene
  • 3-methyl-1,2-butadiene
CAS Number(s)
  • 598-25-4
InChIKey PAKGDPSCXSUALC-UHFFFAOYSA-N
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Elements H C