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1,4-Cycloheptadiene

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1,4-Cycloheptadiene
skeletal formula
Names
Preferred IUPAC name
Cyclohepta-1,4-diene
Other names
1,4-Cycloheptadiene
Identifiers
3D model (JSmol)
Abbreviations 1,4-CHDN
ChemSpider
MeSH 1,4-cycloheptadiene
UNII
UN number 3295
  • Key: HQGYGGZHZWXFSI-UHFFFAOYSA-N
  • InChI=1S/C7H10/c1-2-4-6-7-5-3-1/h1-2,5,7H,3-4,6H2
  • C1CC=CCC=C1
Properties
C7H10
Molar mass 94.157 g·mol−1
Appearance Colorless liquid
Density 0.84 g cm−3
Boiling point −150.445 °C; −238.801 °F; 122.705 K
1.48
Hazards
GHS labelling:
GHS02: Flammable GHS08: Health hazard
Danger
H225, H340, H350, H373
P201, P210, P308+P313
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g. gasolineInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
3
0
Flash point 6.293 °C (43.327 °F; 279.443 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

1,4-Cycloheptadiene is a highly flammable cycloalkene that occurs as a colorless clear liquid. It can form a yellow complex with palladium.[1]

References

[edit]
  1. ^ Rettig, Michael F.; Wing, Richard M. (June 1981). "X-ray crystallographic, chemical, and spectroscopic studies of the palladium dichloride complexes of cyclonona-1,5-diene, cycloocta-1,5-diene, cycloocta-1,4-diene, and cyclohepta-1,4-diene". Journal of the American Chemical Society. 103 (11): 2980–2986. doi:10.1021/ja00401a012.


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