Spiro-TTB

General information

• Name: Spiro-TTB
• Full name: 2,2',7,7'-Tetra(N,N-di-p-tolyl)amino-9,9-spirobifluorene
• CAS number: 515834-67-0
• Chemical formula: C₈₁H₆₈N₄
• Molecular weight: 1097.43 g/mol
• Absorption: λ_max = 385 nm in THF
• Photoluminescence: λ_max = 409 nm in THF
• HOMO/LUMO: HOMO = 5.2 eV, LUMO = 1.9 eV
• Synonyms: N2,N2,N2′,N2′,N7,N7,N7′,N7′-Octa-p-tolyl-9,9′-spirobi[fluorene]-2,2′,7,7′-tetraamine, 2,2′,7,7′-Tetra(N, N-di-tolyl)amino-spiro-bifluorene
• Classification: Organic light-emitting diodes, Hole transport layer materials (HTL), Perovskite solar cells, Organic photovoltaic devices
• Purity: >98.0% (HPLC)
• Melting point: Tg = 146 °C
• Appearance: Light yellow powder/crystals