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Sigma-Aldrich

4,4′,4′′-Tris(N-(naphthalen-2-yl)-N-phenyl-amino)-triphenylamine

Synonym(s):

TSPO1, Diphenyl(4-(triphenylsilyl)phenyl)phosphine oxide

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About This Item

Empirical Formula (Hill Notation):
C36H29OPSi
CAS Number:
1286708-86-8
Molecular Weight:
536.67
UNSPSC Code:
12352116
NACRES:
NA.23

grade

sublimed grade

Quality Level

100

description

μh ≈ 1.1 x 10-6 cm2 V−1 s−1
μe ≈ 5.7 x 10-6 cm2 V−1 s−1

Assay

≥97% (HPLC)

loss

0.5% TGA, > 300 °C (weight loss)

mp

236  °C

solubility

chloroform: soluble
dichloromethane: soluble
toluene: soluble

λmax

266 nm±5 nm in dichloromethane

fluorescence

λem 298 nm±10 nm in dichloromethane

Orbital energy

HOMO 6.79 eV 
LUMO 2.52 eV 

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Application

4,4′,4′′-Tris(N-(naphthalen-2-yl)-N-phenyl-amino)-triphenylamine (TSPO1), also known as diphenyl(4-(triphenylsilyl)phenyl)phosphine oxide, is popularly used as a solution-processable phosphorescent host in optoelectronic devices. It has a μh around 1.1 x 10-6 cm2 V−1 s−1 and a μe of about 5.7 x 10-6 cm2 V−1 s−1.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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Ji Su Moon et al.
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Han, Si Hyun, et al.
Journal of Material Chemistry C, 7, 3082-3089 (2019)
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ACS applied materials & interfaces, 11(1), 26-30 (2018-12-14)
The development of highly efficient blue organic light-emitting diodes (OLEDs) with good stability is currently the most important issue in OLED displays and lighting. This paper reports an efficient blue fluorescent OLED based on a deep-blue-emitting phosphorescent sensitizer [(dfpysipy)2Ir(mpic)] and

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