| Identification | More | [Name]
1,7-OCTADIYNE | [CAS]
871-84-1 | [Synonyms]
1,7-OCTADIYNE
octa-1,7-diyne
1,7-Octadiyne (6CI, 7CI, 8CI, 9CI)
1,7-Octadiyne,98%
1,7-Dctadiyne
1,7-Octanediyne
Octane-1,7-diyne | [EINECS(EC#)]
212-815-0 | [Molecular Formula]
C8H10 | [MDL Number]
MFCD00008580 | [Molecular Weight]
106.17 | [MOL File]
871-84-1.mol |
| Chemical Properties | Back Directory | [Appearance]
clear colorless to faintly yellow liquid | [Melting point ]
27°C (estimate) | [Boiling point ]
135-136 °C (lit.) | [density ]
0.8 g/mL at 25 °C(lit.)
| [refractive index ]
n20/D 1.446(lit.)
| [Fp ]
74 °F
| [storage temp. ]
0-6°C | [solubility ]
Not miscible or difficult to mix. | [form ]
Liquid | [color ]
Clear colorless to faintly yellow | [Specific Gravity]
0.817 | [BRN ]
1697275 | [CAS DataBase Reference]
871-84-1(CAS DataBase Reference) | [EPA Substance Registry System]
1,7-Octadiyne (871-84-1) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R10:Flammable.
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S16:Keep away from sources of ignition-No smoking .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection . | [RIDADR ]
UN 3295 3/PG 3
| [WGK Germany ]
3
| [TSCA ]
Yes | [HazardClass ]
3 | [PackingGroup ]
III | [HS Code ]
29012990 |
| Hazard Information | Back Directory | [Chemical Properties]
clear colorless to faintly yellow liquid | [Uses]
1,7-Octadiyne is an useful bifunctional chain extension unit. It 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(?-dppm)2 (dppm = Ph2PCH2PPh2) and affords quadruply bonded dirhenium(III) complex Re2Cl3(?,η2-C8H7)(?-dppm)2. | [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. |
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