Tris(cyclopentadienyl)terbium(III)
Tris(cyclopentadienyl)terbium(III) (CAS: 1272-25-9), with a molecular weight of 354.20, is an organometallic compound. It is supplied by TSS as a solid with an assay of 99.9% trace metals basis. This compound serves as a valuable precursor in materials science, particularly for chemical vapour deposition (CVD) and atomic layer deposition (ALD) processes, enabling the synthesis of advanced thin films containing terbium.
- IUPAC
- TbCp3

CVD and ALD Precursor
Utilised as a precursor in Chemical Vapour Deposition (CVD) and Atomic Layer Deposition (ALD) for the fabrication of thin films containing terbium. These films find applications in microelectronics and advanced optical coatings.
Materials Science Research
Employed in materials science research for the development of novel materials with specific electronic, magnetic, or optical properties due to the inclusion of the lanthanide element terbium.
Catalysis
Investigated for potential applications in catalysis due to the unique coordination environment and reactivity of organometallic terbium complexes.
Inorganic Synthesis
Serves as a building block in inorganic synthesis for creating complex organometallic structures and novel coordination compounds involving terbium.
| Molecular weight | 354.20 |
|---|---|
| Linear formula | (C5H5)3Tb |
| Assay | 99.9% trace metals basis |
| Form | solid |
| Melting point | 235 °C (dec.)(lit.) |

Hazard statements
- H228Flammable solid
- H261In contact with water releases flammable gas
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P231Handle under inert gas
- P422
| Protective equipment | Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3395 4.3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F |
| Risk statements (R) | 11-14/15 |
| Safety statements (S) | 7/8-43 |
| Supplemental hazards | Reacts violently with water. |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Tris(cyclopentadienyl)terbium(III) used for?
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Tris(cyclopentadienyl)terbium(III) is primarily used as a precursor in Chemical Vapour Deposition (CVD) and Atomic Layer Deposition (ALD) for creating thin films containing terbium, and in materials science research.
What is the CAS number and formula for Tris(cyclopentadienyl)terbium(III)?
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The CAS number is 1272-25-9, and the linear formula is (C5H5)3Tb.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Tris(cyclopentadienyl)terbium(III) at 99.9% trace metals basis. TSS does not represent this product as USP, BP, EP or other pharmacopoeial grades.
How should Tris(cyclopentadienyl)terbium(III) be handled safely?
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Tris(cyclopentadienyl)terbium(III) is a flammable solid that reacts violently with water. Handle with extreme care, avoiding contact with water and ignition sources. Use appropriate personal protective equipment, including eyeshields, gloves, and a P3-rated respirator. Ensure adequate ventilation and inert atmosphere handling where appropriate.
Is Tris(cyclopentadienyl)terbium(III) shipped internationally?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Tris(cyclopentadienyl)terbium(III).
How can I request a quote or sample for Tris(cyclopentadienyl)terbium(III)?
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Please contact our sales department through the TSS website to request a quote or a sample for Tris(cyclopentadienyl)terbium(III).
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