32431-83-7

Basic information

• Product Name: 3-Fluorothiophene-2-carbaldehyde
• Synonyms: 3-Fluorothiophene-2-carbaldehyde;3-Fluoro-2-thiophenecarboxaldehyde;3-Fluorothiophene-2-carboxaldehyde
• CAS NO: 32431-83-7
• Molecular Formula: C5H3FOS
• Molecular Weight: 130.142
• Mol File: 32431-83-7.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 200.435°C at 760 mmHg
• Flash Point: 75.021°C
• Appearance: /
• Density: 1.373g/cm³
• Vapor Pressure: 0.324mmHg at 25°C
• Refractive Index: 1.576
• Storage Temp.: 2-8°C
• CAS DataBase Reference: 3-Fluorothiophene-2-carbaldehyde(CAS DataBase Reference)
• NIST Chemistry Reference: 3-Fluorothiophene-2-carbaldehyde(32431-83-7)
• EPA Substance Registry System: 3-Fluorothiophene-2-carbaldehyde(32431-83-7)

Safety Data

• Hazardous Substances Data: 32431-83-7(Hazardous Substances Data)

Usage

InChI:InChI=1/C5H3FOS/c6-4-1-2-8-5(4)3-7/h1-3H

Upstream product

• 527-72-0 2-thiophenylcarboxylic acid 
• 614729-70-3 (3-fluorothiophen-2-yl)methanol 
• 32431-84-8 3-fluoro-2-thiophenecarboxylic acid 

Downstream Products

• 614729-70-3 (3-fluorothiophen-2-yl)methanol 

Relevant articles and documents

Fluorinated Dithienylethene-Naphthalenediimide Copolymers for High-Mobility n-Channel Field-Effect Transistors

We develop two donor-acceptor copolymers based on a fluorinated dithienylethene building block, namely PNFDTE1 and PNFDTE2, in which naphthalenediimide (NDI) acts as an acceptor unit. Thermogravimetric analysis displayed both copolymers having good thermal stability with high decomposition temperatures over 400 °C. Broad absorption spectra were observed in the UV-vis-NIR region, with the absorption maxima being 720 and 724 nm for PNFDTE1 and PNFDTE2, respectively. Cyclic voltammetry tests exhibited deep-lying lowest unoccupied molecular orbital energy levels of ca. -4.0 eV. Two-dimensional grazing incidence X-ray diffraction patterns showed that different packing modes for two polymers result in the variation in charge transport properties. Backbone fluorination effectively decreases electron injection barrier, thereby facilitating electron mobility. An impressive electron mobility of 3.20 cm2 V-1 s-1 was achieved in air for PNFDTE1-based polymer field-effect transistors fabricated on the poly(ethylene terephthalate) substrate. The mobility value is almost the highest for NDI-containing polymers on the flexible substrate. This work provides a guideline for design and synthesis of fluorinated semiconductors that enables control of charge-transport polarity.

TRICYCLIC PIPERIDINE COMPOUNDS

The present invention relates to compounds of the formula (I), wherein R, R1a, R1b, R2, R3, and X are as described in the description, to their preparation, to pharmaceutically acceptable salts thereof, and to their use as pharmaceuticals, to pharmaceutical compositions containing one or more compounds of formula (I), to methods for the preparation of such compounds of formula (I), and especially to their use as TPH modulators.