P-Carborane丨CAS 20644-12-6

1. Advanced Materials and High-Performance Polymers

p-Carborane's rigid and stable cage structure makes it an ideal component in high-performance materials:

Incorporated into thermally stable polymers, ceramic precursors, and coatings used in aerospace, electronics, and military applications.

Enhances thermal resistance, oxidative stability, and mechanical strength.

Used in flame-retardant materials and UV-stable resins.

2. Boron Neutron Capture Therapy (BNCT)

As a boron-rich molecule, p-carborane serves as a boron delivery agent for BNCT, an advanced cancer treatment.

Mechanism: Boron-10 atoms absorb neutrons and release localized alpha particles that kill tumor cells.

Advantage: p-Carborane is chemically stable, non-toxic, and can be modified for biological targeting.

Can be conjugated with antibodies, peptides, or small molecules for selective tumor targeting.

3. Ligands and Building Blocks in Coordination Chemistry

p-Carborane is widely used to prepare carboranyl ligands and functional coordination compounds:

Its electron-withdrawing nature makes it useful in tuning the electronic properties of metal centers.

Forms stable complexes with transition metals, enabling novel catalyst design.

Applied in homogeneous catalysis, organometallic frameworks, and functional materials.

4. Drug Design and Medicinal Chemistry

In pharmaceutical research, p-carborane is explored as a phenyl ring bioisostere, offering:

Enhanced metabolic stability

Improved lipophilicity and cell penetration

Unique spatial orientation for better fit into enzyme active sites or receptors

Applications include:

Hormone receptor modulators (e.g., estrogen or androgen antagonists)

Enzyme inhibitors

Targeted drug delivery systems

5. Electronic and Optoelectronic Materials

p-Carborane's electron-deficient, rigid, and symmetric structure makes it attractive for:

OLED materials (Organic Light-Emitting Diodes)

Charge transport layers in electronic devices

Nonlinear optical materials and dielectric modifiers

Functionalization of p-carborane enables tuning of band gaps, dipole moments, and charge transfer properties.

6. Molecular Sensors and Surface Functionalization

Functionalized p-carborane compounds are used in the development of:

Chemical and biological sensors, thanks to their stability and electronic tunability

Self-assembled monolayers (SAMs) for biosurfaces and diagnostics

Boron-rich surfaces for chemical microelectronics

1. High Thermal and Chemical Stability

Decomposes at temperatures above 400°C

Resistant to oxidation, hydrolysis, acids, and bases

Suitable for extreme environment applications

2. High Boron Content

Contains 10 boron atoms per molecule, making it excellent for boron delivery in BNCT and boron-containing materials.

Supports efficient neutron capture and is ideal for biomedical applications.

3. Unique Electronic Properties

Electron-withdrawing, 3D-aromatic structure enables electronic modulation in materials and catalysts.

Useful in design of functional ligands and electroactive molecules.

4. Symmetric, Rigid Geometry

The linear C–C axis in p-carborane offers symmetry and rigidity desirable in:

Molecular scaffolds

Nanostructured materials

High-fidelity supramolecular assemblies

5. Low Toxicity and Biocompatibility

Demonstrates low biological toxicity in its unmodified form.

Safe for incorporation into biomedical and pharmaceutical systems with appropriate functionalization.

6. Versatile Chemical Functionalization

Can be selectively modified at both carbon and boron vertices.

Suitable for linking with biomolecules, polymers, or metal complexes.

Enables creation of tailored derivatives for diverse applications.

p-Carborane (CAS 20644-12-6) is a highly symmetric, boron-rich cluster compound known for its thermal stability, chemical inertness, and unique electronic properties. Its wide-ranging applications in BNCT cancer therapy, high-performance polymers, organometallic chemistry, and optical/electronic materials make it a strategic material for advanced technologies. Its low dipole moment, rigid 3D geometry, and tunable reactivity ensure that p-carborane will continue to find expanding use in both scientific research and commercial innovation.