Bis(2,2,6,6-tetramethyl-3,5-heptanedionato)calcium
Bis(2,2,6,6-tetramethyl-3,5-heptanedionato)calcium (CAS 118448-18-3; formula Ca(C11H19O2)2; molar mass 406.61 g/mol) is a volatile calcium beta-diketonate complex, commonly abbreviated Ca(TMHD)2. Supplied at 97% assay, this air-sensitive organometallic solid serves chiefly as a calcium-source precursor for metal-organic chemical vapour deposition (MOCVD) and atomic layer deposition of calcium-containing thin films, including oxides and phosphors. Tech Serve Solutions supplies it as a research-grade reagent to laboratories and manufacturers worldwide.
- IUPAC
- (Ca(TMHD)2),Calcium bis(dipivaloylmethanate)
- Synonyms
- Bis(2,2,6,6-tetramethyl-3,5-heptanedionato)calciumCa(TMHD)2Calcium bis(2,2,6,6-tetramethyl-3,5-heptanedionate)Calcium bis(dipivaloylmethanate)Calcium dipivaloylmethanateCalcium tetramethylheptanedionateCa(C11H19O2)2CAS 118448-18-3
MOCVD calcium precursor
Acts as a volatile, thermally tractable calcium source for metal-organic chemical vapour deposition. The bulky tetramethylheptanedionato (TMHD/dipivaloylmethanato) ligands confer the volatility needed for vapour-phase film growth.
Calcium oxide insulator films
Used as a reactant in the fabrication of calcium oxide insulating layers, where the precursor delivers calcium for controlled oxide deposition.
Calcium copper oxide thin films
Serves as the calcium source for yttrium-doped calcium copper oxide films grown by organometallic chemical vapour deposition.
Thin-film phosphors
Employed as a reactant for the nucleation and growth of thin-film phosphors, contributing the calcium component to luminescent layers.
Inorganic and materials synthesis
A useful, well-defined calcium reagent for catalysis, inorganic chemistry and general chemical synthesis where a soluble, volatile calcium complex is required.
| Molecular weight | 406.61 |
|---|---|
| Linear formula | Ca(C11H19O2)2 |
| Assay | 97% |
| Application | Reactant for fabrication of:• Calcium oxide insulators1• Yttrium-doped calcium copper oxide films via organometallic chemical vapor deposition2Reactant for the nucleation and growth of thin film phosphors3 |
| Melting point | 220-223 °C |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-37/39 |
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 Bis(2,2,6,6-tetramethyl-3,5-heptanedionato)calcium used for?
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It is used mainly as a volatile calcium precursor for metal-organic chemical vapour deposition (MOCVD) and related thin-film growth. Documented uses include fabricating calcium oxide insulators, yttrium-doped calcium copper oxide films, and the nucleation and growth of thin-film phosphors. It also serves as a calcium reagent in inorganic and materials synthesis.
What is the CAS number and molecular formula of Bis(2,2,6,6-tetramethyl-3,5-heptanedionato)calcium?
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The CAS number is 118448-18-3 and the linear formula is Ca(C11H19O2)2, with a molecular weight of 406.61 g/mol. It is also known as Ca(TMHD)2 or calcium bis(dipivaloylmethanate).
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this material at 97% assay as a research/technical-grade reagent suitable for chemical synthesis and thin-film deposition. We do not represent it as USP, BP or EP pharmacopoeia grade. A certificate of analysis can be provided with each consignment on request.
What are the safety and handling precautions?
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The product carries GHS07 with the signal word Warning. The hazard statements are H315 (causes skin irritation), H319 (causes serious eye irritation) and H335 (may cause respiratory irritation). Handle with suitable gloves and eye protection and avoid breathing dust, in line with P261 and P305+P351+P338. It is assigned WGK 3 (German water hazard class), so prevent release to drains and watercourses. The solid melts at 220-223 degrees C. Always consult the Safety Data Sheet before use.
How is Bis(2,2,6,6-tetramethyl-3,5-heptanedionato)calcium packed, shipped and exported?
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It is supplied in tightly sealed containers appropriate to the order quantity, with packaging chosen to protect the moisture- and air-sensitive solid during transit. Tech Serve Solutions exports worldwide with full documentation, including a certificate of analysis and Safety Data Sheet. Container sizes and labelling can be tailored to your laboratory or production requirements.
How do I request a sample or quote?
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Contact Tech Serve Solutions with your required quantity, purity and destination, and our team will respond with availability, lead time and a formal quotation. Samples can be arranged for qualification where appropriate.
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