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ChemicalBook--->CAS DataBase List--->251-41-2

251-41-2

251-41-2 Structure

251-41-2 Structure
IdentificationBack Directory
[Name]

Thieno[3,2-b]thiophene
[CAS]

251-41-2
[Synonyms]

1,4-THIOPHTHENE
BUTTPARK 145\50-51
1,4-DITHIAPENTALENE
Thieno[3,2-b]thiophen
THIENO[3,2-B]THIOPHENE
4-Dithiapentalene 1,4-Thiophthene
1,4-Dithiapentalene 1,4-Thiophthene
Thieno[3,2-b]thiophene 1,4-Dithiapentalene
[Molecular Formula]

C6H4S2
[MDL Number]

MFCD00179479
[MOL File]

251-41-2.mol
[Molecular Weight]

140.23
Questions And AnswerBack Directory
[General description]

Thieno(3,2-b)thiophene (TT) is an electron rich conjugated polymer that has a quinoidal structure with a narrow band gap. It facilitates a strong intermolecular networking.

[Application]

Thieno[3,2-b]thiophene may be used as conjugated side chains in the synthesis of donor-acceptor copolymers. It finds potential applications in the enhancement of power conversion efficiency (PCE) for organic solar cells.

[Classification]

Thiophene, Fused thiophene, Dithiapentalene, Heterocylic aromatics, Five-membered ring, Semiconductor synthesis intermediates, Low band gap polymers OFETs, Organic Photovoltaics, Polymer solar cells

[preparation]

Thieno[3,2-b]thiophene, also known as thienothiophene (TT), is a heterocyclic compound. It belongs to the family of fused thiopehenes and is widely used as an intermediate for the synthesis of small molecules and polymers in the application of organic field-effect transistors (OFETs) and organic photovoltaic devices (OPV).
Fused thiophenes are more electron-rich and more structurally rigid, with extended π-conjugation so they are good candidates for adjusting the band gap of the organic polymer semiconducting materials, i.e. Poly[2,5-bis(3-hexadecylthiophen-2-yl)thieno[3,2-b]thiophene] (also known as PBTTT).
251-41-2 synthesis

Chemical PropertiesBack Directory
[Melting point ]

56 °C
[Boiling point ]

71 °C / 1mmHg
[density ]

1.367±0.06 g/cm3(Predicted)
[Fp ]

98℃
[storage temp. ]

Keep in dark place,Sealed in dry,Room Temperature
[solubility ]

soluble in Methanol
[form ]

powder to crystal
[NIST Chemistry Reference]

Thieno[3,2-b]thiophene(251-41-2)
[color ]

White crystals
[Description]

Thieno[3,2-b]thiophene, also known as thienothiophene (TT), is a heterocyclic compound. It belongs to the family of fused thiopehenes and is widely used as an intermediate for the synthesis of small molecules and polymers in the application of organic field-effect transistors (OFETs) and organic photovoltaic devices (OPV).
Hazard InformationBack Directory
[Chemical Properties]

White to yellow Solid
[Uses]

TT may be used as conjugated side chains in the synthesis of donor-acceptor copolymers. It finds potential applications in the enhancement of power conversion efficiency (PCE) for organic solar cells.
Safety DataBack Directory
[Hazard Codes ]

Xn
[Risk Statements ]

22-36/37/38
[Safety Statements ]

26-36/37
[RIDADR ]

UN 3335
[WGK Germany ]

3
[Hazard Note ]

Harmful
[HS Code ]

29309090
Spectrum DetailBack Directory
[Spectrum Detail]

Thieno[3,2-b]thiophene(251-41-2)1HNMR
Thieno[3,2-b]thiophene(251-41-2)FT-IR
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