30126-05-7

Basic information

• Product Name: THIENO[3,2-B][1]BENZOTHIOPHENE-2-CARBOXYLIC ACID
• Synonyms: 3,7-Dithiatricyclo[6.4.0.0,2,6]dodeca-1(8),2(6),4,9,11-pentaene-4-carboxylic Acid
• CAS NO: 30126-05-7
• Molecular Formula: C11H6O2S2
• Molecular Weight: 234.3
• Mol File: 30126-05-7.mol

Chemical Properties

• Melting Point: 265 °C (decomp)
• Boiling Point: 477.5°C at 760 mmHg
• Flash Point: 242.6°C
• Appearance: /
• Density: 1.570±0.06 g/cm3(Predicted)
• Vapor Pressure: 6.31E-10mmHg at 25°C
• PKA: 3.40±0.30(Predicted)
• CAS DataBase Reference: THIENO[3,2-B][1]BENZOTHIOPHENE-2-CARBOXYLIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: THIENO[3,2-B][1]BENZOTHIOPHENE-2-CARBOXYLIC ACID(30126-05-7)
• EPA Substance Registry System: THIENO[3,2-B][1]BENZOTHIOPHENE-2-CARBOXYLIC ACID(30126-05-7)

Safety Data

• Hazardous Substances Data: 30126-05-7(Hazardous Substances Data)

Usage

InChI:InChI=1/C11H6O2S2/c12-11(13)9-5-8-10(15-9)6-3-1-2-4-7(6)14-8/h1-5H,(H,12,13)/p-1

Upstream product

• 135-13-7 (o-carboxyphenyl)thioacetic acid 
• 7342-82-7 3-Bromothianaphthene 
• 6287-82-7 2,3-dibromobenzo[b]thiophene 
• 95-15-8 Benzo[b]thiophene 
• 10135-00-9 3-bromobenzo[b]thiophene-2-carbaldehyde 
• 35616-45-6 ethyl thieno[3,2-b][1]benzothiophene 2-carboxylate 
• 14006-54-3 3-chloro-1-benzothiophen-2-carbaldehyde 
• 694458-11-2 methyl thieno[3,2-b][1]benzothiophene-2-carboxylate 

Downstream Products

• 247-52-9 benzo<4,5>thieno<3,2-b>thiophene 

Relevant articles and documents

Ligand Compound, Transition Metal Compound, and Catalyst Composition Comprising the Transition Metal Compound

The present invention relates to a novel ligand compound, a transition metal compound and a catalyst composition comprising the same. The novel ligand compound and the transition metal compound of the present invention may be useful as a catalyst of polymerization reaction for preparing an olefin-based polymer having a low density.

ROBUST PHOTOCHROMIC COMPOUNDS WITH SILICON- OR PHOSPHORUS-CONTAINING HETEROCYCLIC RING AND PRODUCTION THEREOF

In one embodiment, provided are a new class of diarylethene-containing photochromic compounds with the incorporation of silicon-or phosphorus-containing heterocycles into the "ethene" part of the diarylethene backbone that has been shown to be capable of displaying tunable, robust and thermally stable photochromic properties. Also provided are methods for synthesizing these compounds, as well as uses of these compounds as these compounds may be used as the photochromic layer in an optical recording material and other optical functioning devices.

Naphtho[2,1-b:3,4-b′]bisthieno[3,2-b][1]benzothiophene-based semiconductors for organic field-effect transistors

A novel series of air-stable and highly extended π-conjugated naphtho[2,1-b:3,4-b′]bisthieno[3,2-b][1]benzothiophene derivatives, NBTBT-n (n = 6, 8, 10, and 12) and NBTBTF-10, was developed. The influence of various alkoxy-side groups including straight chain with different chain lengths and branched chain on the FET device performance was also investigated. There was a progressive enhancement in the NBTBT-based OFET device performance with an increase in the annealing temperature. The OFET devices based on NBTBT-10 fabricated by vacuum deposition exhibited the best performance with a hole mobility of 0.25 cm2 V-1 s-1 and an on/off ratio of 105-106 after annealing at 220 °C. In addition, fluorinated naphtho[2,1-b:3,4-b′]bisthieno[3,2-b][1]benzothiophene, NBTBTF-10, showed good p-type transistor behaviour with a hole mobility of 0.24 cm2 V-1 s-1 and an on/off ratio of 106-107 which was achieved at a lower annealing temperature of 140 °C, suggesting the important contribution of the dipole-dipole interactions induced by the fluorine atoms in the molecular packing. As a result, the naphtho[2,1-b:3,4-b′]bisthieno[3,2-b][1]benzothiophene framework shows promise as a useful building block to construct organic semiconductors for next-generation high performance organic electronics.

An asymmetric oligomer based on thienoacene for solution processed crystal organic thin-film transistors

A novel thienoacene-based conjugated oligomer, i.e.BTTT-T-C12, was designed and synthesized. Its highly asymmetric structural feature enables the preparation of two-dimensional single-crystalline thin films in millimetre size and ～100 nm thick by a solution processing method directly on the Si/SiO2 substrate. Single crystal organic thin film transistors exhibit a mobility of 0.70 cm2 V-1 s-1 and an on/off ratio of 5.7 × 104.

Polythienobenzothiophenes, a new family of electroactive polymers: Electrosynthesis, spectral characterization and modelling

New conducting polymers, including poly[thieno[3,2-b][1]benzothiophene] (poly-TBT) and poly [6-methoxythieno[3,2-b][1]benzothiophene] (poly-MeOTBT) were electrosynthesized by anodic oxidation of the corresponding monomers in 0.1 M LiClO4 acetonitrile solution. Poly-TBT and poly-MeOTBT electroactive films were formed on platinum electrodes and characterized spectroscopically. FT-IR studies show that both polymers present couplings occurring on the thiophene moiety and the phenyl ring, with a step-like structure. MALDI-TOF mass spectrometry indicates that poly-TBT and poly-MeOTBT films are mainly constituted of short-chain oligomers. The results of molecular orbital (MO) calculations performed on the basis of a radical-cation electropolymerization mechanism are in good agreement with our spectral data.