161292

1,7-Octadiyne

98%

• Linear Formula: HC≡C(CH₂)₄C≡CH
• CAS Number: 871-84-1
• Molecular Weight: 106.17
• EC Number: 212-815-0
• MDL number: MFCD00008580
• UNSPSC Code: 12352100
• PubChem Substance ID: 24849918
• NACRES: NA.22

Properties

• Quality Level: 100
• assay: 98%
• form: liquid
• refractive index: n20/D 1.446 (lit.)
• bp: 135-136 °C (lit.)
• density: 0.8 g/mL at 25 °C (lit.)
• storage temp.: 2-8°C
• SMILES string: C#CCCCCC#C
• InChI: 1S/C8H10/c1-3-5-7-8-6-4-2/h1-2H,5-8H2
• InChI key: DSOJWVLXZNRKCS-UHFFFAOYSA-N

Description

General description

1,7-Octadiyne is a terminal bis-alkyne and participates in the formation of uranium(IV) vinyl complexes. It reacts with frustrated Lewis pair P(o-tolyl)₃/B(C₆F₅)₃ by acetylene C-C coupling to yield the zwitterionic product. It undergoes the reductive cyclization during reaction with Re₂Cl₄(μ-dppm)₂ (dppm = Ph₂PCH₂PPh₂) and affords quadruply bonded dirhenium(III) complex Re₂Cl₃(μ,η²-C₈H₇)(μ-dppm)₂.

Safety Information

• pictograms: GHS02,GHS07
• signalword: Warning
• hcodes: H226,H315,H319,H335
• pcodes: P210 - P233 - P240 - P241 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 3
• flash_point_f: 73.4 °F - closed cup
• flash_point_c: 23 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter