Description

22,2',7,7'-Tetraiodo-9,9'-Spirobi[Fluorene] is a highly functionalized, polyhalogenated spirobifluorene derivative. This compound matters as a sophisticated organic intermediate and building block, prized for its rigid, three-dimensional structure and high iodine content, which imparts unique electronic and optical properties. It is primarily needed by researchers and manufacturers in the fields of organic electronics, advanced material science, and pharmaceutical chemistry for developing novel semiconductors, light-emitting materials, and complex molecular architectures.

Application

• Organic Light-Emitting Diodes (OLEDs): Serves as a key precursor or dopant material for the synthesis of host and emissive layers due to its electron-transporting capabilities and potential for color tuning.
• Organic Photovoltaics (OPVs): Used in the development of non-fullerene acceptors or interfacial layers to enhance charge separation and transport efficiency in solar cells.
• Advanced Material Synthesis: Acts as a rigid, sterically hindered core for constructing complex dendritic polymers, porous organic frameworks, and liquid crystals.
• Pharmaceutical Intermediates: Employed in medicinal chemistry research for creating novel drug candidates, leveraging its spiro-configured scaffold.
• Chemical Sensing: Utilized in the design of fluorescent probes and chemosensors where its fluorescence can be modulated by specific analytes.
• Catalysis Research: Functions as a ligand precursor for transition metal catalysts, where its bulky structure can influence catalytic activity and selectivity.

Basic Information

Product Name	22,2',7,7'-Tetraiodo-9,9'-Spirobi[Fluorene]
CAS No.	137181-59-0
Molecular Formula	C25H10I4
Molecular Weight	899.86 g/mol
Synonyms	2,2',7,7'-Tetraiodo-9,9'-spirobi[9H-fluorene]; 9,9'-Spirobi[9H-fluorene]-2,2',7,7'-tetrayl tetraiodide; Tetraiodospirobifluorene; 2,2',7,7'-Tetraiodospirobifluorene; SBF-I4; Spirobifluorene tetraiodide
EINECS	Contact for details

Quality Control

Our 22,2',7,7'-Tetraiodo-9,9'-Spirobi[Fluorene] is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and elemental analysis, to ensure high purity and batch-to-batch consistency. Certificates of Analysis (COA) detailing all specifications are available upon request to support your R&D and quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at a controlled room temperature (15-25°C) in a cool, dry, and well-ventilated place. This material is light-sensitive and easily oxidized; prolonged exposure to air and light should be avoided to maintain stability.

Specification

Item	Specification
Appearance	Yellow to orange powder or crystals
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm
Residue on Ignition	< 0.1%

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