914922-86-4

Basic information

• Product Name: tetraceno[2,3-b]thiophene-5,12-dione
• Synonyms: tetraceno[2,3-b]thiophene-5,12-dione
• CAS NO: 914922-86-4
• Molecular Weight: 314.364
• Mol File: 914922-86-4.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: tetraceno[2,3-b]thiophene-5,12-dione(CAS DataBase Reference)
• NIST Chemistry Reference: tetraceno[2,3-b]thiophene-5,12-dione(914922-86-4)
• EPA Substance Registry System: tetraceno[2,3-b]thiophene-5,12-dione(914922-86-4)

Safety Data

• Hazardous Substances Data: 914922-86-4(Hazardous Substances Data)

Upstream product

• 932-41-2 2,3-diformylthiophene 
• 635-12-1 1,4-anthraquinone 
• 7218-35-1 1,4-dihydroxyanthracene 

Relevant articles and documents

Controlling Single Molecule Conductance by a Locally Induced Chemical Reaction on Individual Thiophene Units

Among the prerequisites for the progress of single-molecule-based electronic devices are a better understanding of the electronic properties at the individual molecular level and the development of methods to tune the charge transport through molecular junctions. Scanning tunneling microscopy (STM) is an ideal tool not only for the characterization, but also for the manipulation of single atoms and molecules on surfaces. The conductance through a single molecule can be measured by contacting the molecule with atomic precision and forming a molecular bridge between the metallic STM tip electrode and the metallic surface electrode. The parameters affecting the conductance are mainly related to their electronic structure and to the coupling to the metallic electrodes. Here, the experimental and theoretical analyses are focused on single tetracenothiophene molecules and demonstrate that an in situ-induced direct desulfurization reaction of the thiophene moiety strongly improves the molecular anchoring by forming covalent bonds between molecular carbon and copper surface atoms. This bond formation leads to an increase of the conductance by about 50 % compared to the initial state.

Organic Semiconductors and Their Manufacture

The invention relates to a semiconductor device comprising a compound of the formula I and of the formula XXI, wherein the symbols have the meanings defined in the specification, to the novel compounds of the formula I and XXI and to the use of such a compound as an organic semiconductor for the preparation of an electronic device, and further compounds and devices, as well as other embodiments given in the specification.