85590-07-4

Basic information

• Product Name: 7',7',8',8'-Tetramethyl-2,2'-disilanobiphenyl
• Synonyms: 7',7',8',8'-Tetramethyl-2,2'-disilanobiphenyl;9,10-Dihydro-9,9,10,10-tetramethyl-9,10-disilaphenanthrene;9,9,10,10-Tetramethyl-9,10-dihydro-9,10-disilaphenanthrene;9,9,10,10-Tetramethyl-9,10-disilaphenanthrene
• CAS NO: 85590-07-4
• Molecular Formula: C₁₆H₂₀Si₂
• Molecular Weight: 0
• Mol File: 85590-07-4.mol

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 7',7',8',8'-Tetramethyl-2,2'-disilanobiphenyl(CAS DataBase Reference)
• NIST Chemistry Reference: 7',7',8',8'-Tetramethyl-2,2'-disilanobiphenyl(85590-07-4)
• EPA Substance Registry System: 7',7',8',8'-Tetramethyl-2,2'-disilanobiphenyl(85590-07-4)

Safety Data

• Hazardous Substances Data: 85590-07-4(Hazardous Substances Data)

Upstream product

• 661-68-7 1,2-difluoro-1,1,2,2-tetramethyl-disilane 
• 43216-01-9 2,2'-dimercaptobiphenyl 
• 4342-61-4 1,2-dichlorotetramethylsilane 
• 13029-09-9 2,2'-dibromobiphenyl 

Downstream Products

• 13688-68-1 9,9-dimethyl-9-silafluorene 
• 55644-09-2 hexamethylsilirane 
• 38041-07-5 1,1-diethyl-1,2,2-trimethyldisilane 
• 92465-72-0 5,5,7,7-tetramethyl-5,7-dihydrodibenzo[c,e][1,2,7]oxadisilepine 
• 87842-18-0 2,2'-bis(chlorodimethylsilyl)biphenyl 
• 1062617-95-1 5,5,12,12-tetramethyl-7-phenyl-5,6,11,12-tetrahydrotribenzo[b,d,h][1,6]disilecine 

Relevant articles and documents

Disilane- and siloxane-bridged biphenyl and bithiophene derivatives as electron-transporting materials in OLEDs

Optical, electrochemical, and electron-transporting properties of disilane- and siloxane-bridged biphenyl and bithiophene derivatives were investigated, in comparison with those of the monosilane-bridged analogues (siloles). The UV spectra and cyclic voltammograms indicated that elongation of the silicon bridge suppresses the π-conjugation, in accordance with the results of DFT calculations. The DFT calculations indicated also that the disilane-bridged biphenyl and siloxane-bridged bithiophene should have the low-lying HOMOs and LUMOs. The electron-transporting properties were evaluated by the performance of triple-layered OLEDs having vapor-deposited films of the Si-bridged compound, Alq3, and TPD, as the electron-transport, emitter, and hole-transport, respectively. Of these, the device with a disilane-bridged biphenyl exhibited the high performance with the maximum current density of 590 mA/cm2 at the applied electric field of 12 × 107 V/m (applied bias voltage = 13 V) and the maximum luminance of 22 000 cd/m2 at 13 × 107 V/m.