Chemical Property of 1,3,5,7-Cyclooctatetraene
Chemical Property:
- Appearance/Colour:colourless to light yellow liquid
- Vapor Pressure:7.64mmHg at 25°C
- Melting Point:-5 - -3 °C(lit.)
- Refractive Index:n20/D 1.537(lit.)
- Boiling Point:140.5 °C at 760 mmHg
- Flash Point:22.2 °C
- PSA：0.00000
- Density:0.904 g/cm3
- LogP:2.22480
- Storage Temp.:2-8°C
- Sensitive.:Light Sensitive
- Water Solubility.:Not miscible or difficult to mix in water.
- Purity/Quality:
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99.3% *data from raw suppliers
Cyclooctatetraene *data from reagent suppliers
Safty Information:
- Pictogram(s):
Xn,
Xi
- Hazard Codes:Xn,Xi,T
- Statements:
10-36/37/38-65-61
- Safety Statements:
26-62-45-53
- MSDS Files:
-
SDS file from LookChem
Useful:
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Physical properties
Cyclooctatetraene (COT) is a poster child for nonaromatic molecules. An isomer of tub-shaped COT, with one of the ring double bonds changed from the usual cis form to a trans one, lies some 23 kcal/mol higher in energy.Cyclooctatetraene is an 8p electron system and has a triplet ground state if the p electrons are delocalized. It is antiaromatic hence highly unstable and reactive. It adopts a non-planar boat conformation to attain stability with alternating single and double bonds and hence behaves like a polyolefin.Cyclooctatetraene is a nonaromatic 4n π-conjugated system with a non-planar tub-shaped geometry and potential energy surfaces at the ground state.
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Uses
Used in the synthesis of highly organic film for silicon surfaces to improve its chemical and physical properties. 1 Used in liquid state organic dye lasers. 2 Used as triplet state quencher to reduce dye blinking. 3 1,3,5,7-Cyclooctatetraene is used in the synthesis of highly organic film for silicon surfaces to improve its chemical and physical properties. It is also used in liquid state organic dye lasers, as triplet state quencher to reduce dye blinking. COT may be functionalized by two side groups which can be used as active anode materials for rechargeable batteries. High capacity and voltage organic cathodes may be developed by using COT that can be fused with carbon molecules.
