138924

Cyclooctatetraene

98%

• Sinônimo(s): [8]Annulene
• Fórmula empírica (Notação de Hill): C₈H₈
• Número CAS: 629-20-9
• Peso molecular: 104.15
• Beilstein: 2496800
• Número MDL: MFCD00004161
• Código UNSPSC: 12352103
• ID de substância PubChem: 24848370
• NACRES: NA.23

Propriedades

• Ensaio: 98%
• forma: liquid
• contém: 0.1% hydroquinone as inhibitor
• índice de refração: n20/D 1.537 (lit.)
• pb: 142-143 °C (lit.)
• pf: −5-−3 °C (lit.)
• densidade: 0.925 g/mL at 25 °C (lit.)
• temperatura de armazenamento: −20°C
• cadeia de caracteres SMILES: C1=CC=CC=CC=C1
• InChI: 1S/C8H8/c1-2-4-6-8-7-5-3-1/h1-8H/b2-1-,3-1-,4-2-,5-3-,6-4-,7-5-,8-6-,8-7-
• chave InChI: KDUIUFJBNGTBMD-BONZMOEMSA-N

Descrição

Descrição geral

Cyclooctatetraene (COT) is a nonaromatic 4n π-conjugated system with a non-planar tub-shaped geometry and potential energy surfaces at the ground state.

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.

Aplicação

• Used in the synthesis of highly organic film for silicon surfaces to improve its chemical and physical properties.
• Used in liquid state organic dye lasers.
• Used 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.

Informações de segurança

• Pictogramas: GHS02,GHS08,GHS07
• Palavra indicadora: Danger
• Frases de perigo: H225,H304,H315,H319,H335,H412
• Declarações de precaução: P210 - P273 - P301 + P310 - P303 + P361 + P353 - P305 + P351 + P338 - P331
• Classificações de perigo: Aquatic Chronic 3 - Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3
• Órgãos-alvo: Respiratory system
• Código de classe de armazenamento: 3 - Flammable liquids
• Classe de risco de água (WGK): WGK 3
• Ponto de fulgor (°F): 71.6 °F - closed cup
• Ponto de fulgor (°C): 22 °C - closed cup
• Equipamento de proteção individual: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter