18826-29-4 Usage
General Description
5,12-bis(phenylethynyl)naphthacene, also known as TEC, is a chemical compound that belongs to the family of naphthalene derivatives. It is a polycyclic aromatic hydrocarbon with two phenylethynyl groups attached to the 5 and 12 positions of the naphthacene backbone. TEC has been studied for its potential use in organic electronic devices, such as organic light-emitting diodes (OLEDs) and organic field-effect transistors (OFETs), due to its excellent charge transport and photophysical properties. It is also being investigated for its potential application in photovoltaic devices and as a material for organic semiconductors. TEC has shown promising results in improving the performance and efficiency of these electronic devices.
Check Digit Verification of cas no
The CAS Registry Mumber 18826-29-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,8,2 and 6 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 18826-29:
(7*1)+(6*8)+(5*8)+(4*2)+(3*6)+(2*2)+(1*9)=134
134 % 10 = 4
So 18826-29-4 is a valid CAS Registry Number.
InChI:InChI=1/C34H20/c1-3-11-25(12-4-1)19-21-31-29-17-9-10-18-30(29)32(22-20-26-13-5-2-6-14-26)34-24-28-16-8-7-15-27(28)23-33(31)34/h1-18,23-24H
18826-29-4Relevant articles and documents
Structure, photophysics, and photooxidation of crowded diethynyltetracenes
Zhang, Jingjing,Sarrafpour, Syena,Haas, Terry E.,Mueller, Peter,Thomas, Samuel W.
experimental part, p. 6182 - 6189 (2012/06/29)
This paper describes a previously unreported class of sterically crowded tetracene derivatives that have both phenyl and ethynyl substituents. The steric crowding above and below the tetracene core prevents overlap between the extended π-systems of the acenes. Substituent effects cause these tetra-substituted tetracenes to have absorbance and fluorescence spectra red shifted from either disubstituted derivatives or rubrenes, such that they have spectra similar to diarylpentacenes, but with higher quantum yields of fluorescence and greater photostability. These new molecules also undergo cycloaddition reactions with 1O2, giving regioisomeric mixtures of endoperoxides, and in contrast to longer acenes, the ethynyl substituents show only a modest stabilizing effect to photooxidation. Ethynylated tetracenes also exhibited photochromism, with their endoperoxides undergoing cycloreversion to yield the acene starting material at room temperature in the dark. The Royal Society of Chemistry 2012.
