Description

2,7-Bis(Diphenylphosphoryl)-9,9′-Spirobi[Fluorene] is a sophisticated, high-value organophosphorus compound featuring a rigid spirobi[fluorene] core, making it a versatile ligand and building block in advanced materials chemistry. Its primary value lies in its ability to act as a highly efficient electron-transport material and host matrix in organic light-emitting diodes (OLEDs) and other optoelectronic devices. This compound is essential for R&D and production teams in the electronics, photonics, and specialty chemical sectors seeking to enhance device efficiency and longevity.

Application

• OLED Technology: As a high-performance electron-transport layer (ETL) and host material in phosphorescent and thermally activated delayed fluorescence (TADF) OLEDs.
• Phosphorescent Material Synthesis: Serving as a key ligand or precursor for metal complexes (e.g., Ir, Pt) used in emissive layers.
• Organic Photovoltaics (OPVs): Utilized as an electron-accepting or charge-transport component in solar cell active layers.
• Advanced Catalysis: Acting as a supporting ligand in transition metal catalysis for cross-coupling and other organic transformations.
• Material Science Research: A fundamental building block for developing novel polymers and small molecules with tailored electronic properties.
• Sensors and Imaging: Potential application in the development of chemical sensors and bio-imaging agents due to its photophysical characteristics.

Basic Information

Item	Detail
Product Name	2,7-Bis(Diphenylphosphoryl)-9,9′-Spirobi[Fluorene]
CAS No.	1234510-13-4
Molecular Formula	C49H34O2P2
Molecular Weight	732.75 g/mol
Synonyms	2,7-Bis(diphenylphosphoryl)-9,9'-spirobi[9H-fluorene]; 9,9'-Spirobi[9H-fluorene]-2,7-diylbis(diphenylphosphine oxide); Spiro-OMeTAD Analog (Phosphoryl); SFDPO; BDP-SF; OLED Electron Transport Material ETL-12; Light-sensitive Spiro Phosphine Oxide
EINECS	Contact for details

Quality Control

Every batch of 2,7-Bis(Diphenylphosphoryl)-9,9′-Spirobi[Fluorene] is synthesized and purified under controlled conditions to meet the stringent requirements of optoelectronic applications. Our quality assurance includes rigorous analytical testing via HPLC, NMR, and elemental analysis to ensure high purity and batch-to-batch consistency. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This material is light-sensitive (store away from light). For long-term storage, consider storing under an inert atmosphere to prevent potential oxidation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Residual Solvents (GC)	Meets ICH guidelines

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.