Phthalocyanine is a synthetic organic
compound with the chemical formula C32H16N8. It is a blue-green pigment that belongs
to the family of phthalocyanine dyes and pigments.
Here are the details of Phthalocyanine along with its CAS number:
Chemical formula: C32H16CuN8
Molecular weight: Approximately 576.61 g/mol
Density: Varies depending on the specific
form and crystalline structure
Melting point: Varies depending on the
specific form and crystalline structure
Solubility: Phthalocyanine compounds are
typically insoluble in water but soluble in organic solvents such as
chloroform, dichloromethane, and toluene.
Phthalocyanine molecules consist of four isoindole units linked by nitrogen atoms to form a large aromatic macrocycle. This structure gives phthalocyanine its unique properties, including high thermal stability, chemical resistance, and intense color.
Phthalocyanine pigments are widely used in various applications, including:
1. Pigments: Phthalocyanine pigments are used in inks, paints, coatings, plastics, and textiles for their vibrant blue and green colors. They offer excellent color strength, lightfastness, and weather resistance.
2. Photovoltaics: Phthalocyanine compounds are used as photoactive materials in organic photovoltaic cells (OPVs) and dye-sensitized solar cells (DSSCs) for their ability to absorb sunlight and convert it into electricity.
3. Electronics: Phthalocyanine compounds are used in organic semiconductor materials for electronic devices such as organic light-emitting diodes (OLEDs), field-effect transistors (FETs), and photodetectors.
4. Catalysts: Phthalocyanine complexes are used as catalysts in various chemical reactions, including oxidation, hydrogenation, and carbon-carbon bond formation.
5. Biomedical Imaging: Phthalocyanine derivatives are investigated for their potential use as contrast agents in biomedical imaging techniques such as magnetic resonance imaging (MRI) and near-infrared fluorescence imaging.
Phthalocyanine pigments and derivatives are valued for their versatility, stability, and intense color, making them indispensable in various industries. However, some phthalocyanine compounds may have environmental and health concerns, especially those containing heavy metals. Efforts are ongoing to develop safer and more sustainable alternatives to traditional phthalocyanine pigments.
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