Tetrakis(2,2,6,6-tetramethyl-3,5-heptanedionato)hafnium(IV) Hf(tmhd)4
Tetrakis(2,2,6,6-tetramethyl-3,5-heptanedionato)hafnium(IV) Hf(tmhd)4
CAS: 63370-90-1
Molecular Formula: C44H76HfO8
Tetrakis(2,2,6,6-tetramethyl-3,5-heptanedionato)hafnium(IV) Hf(tmhd)4 - Names and Identifiers
Tetrakis(2,2,6,6-tetramethyl-3,5-heptanedionato)hafnium(IV) Hf(tmhd)4 - Physico-chemical Properties
| Molecular Formula | C44H76HfO8 |
| Molar Mass | 911.56 |
| Melting Point | 315-320°C |
| Boling Point | 180°C 0,1mm |
| Water Solubility | Soluble in hexane, toluene, hydrocarbons, alcohols, ketones and esters. Insoluble in water. |
| Appearance | crystal |
| Color | white |
| Exposure Limit | ACGIH: TWA 0.5 mg/m3NIOSH: IDLH 50 mg/m3; TWA 0.5 mg/m3 |
| Storage Condition | Room Temprature |
| Sensitive | 4: no reaction with water under neutral conditions |
Tetrakis(2,2,6,6-tetramethyl-3,5-heptanedionato)hafnium(IV) Hf(tmhd)4 - Risk and Safety
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
Tetrakis(2,2,6,6-tetramethyl-3,5-heptanedionato)hafnium(IV) Hf(tmhd)4 - Introduction
Tetrakis(2,2,6,6-tetramethyl-3,5-heptanedionato)hafnium(IV) Hf(tmhd)4, abbreviated Hf(tmhd)4, is an organometallic compound. Its chemical formula is Hf(tmhd)4, where Hf represents the hafnium element and tmhd represents the 2,2, 6,6-tetramethyl -3,5-heptanedione ion.
Hf(tmhd)4 is a red crystal at room temperature. It has a melting point of about 200°C and a higher boiling point. Hf(tmhd)4 has good thermal stability and solubility, and can be dissolved in a variety of solvents. This compound is widely used in the field of organometallic chemical synthesis and material science.
Because Hf(tmhd)4 is stable in solution, it is often used as a catalyst. It acts as a catalyst in certain organic synthesis reactions, such as oxidation, reduction and carbonylation reactions in organic chemical synthesis. In addition, Hf(tmhd)4 can also be used to deposit thin films of the metal hafnium and to prepare other organometallic compounds.
The preparation of Hf(tmhd)4 is mainly obtained by reacting hafnium metal with 2,2, 6,6-tetramethyl -3,5-heptanedione. The reaction is typically carried out under an inert atmosphere, such as a nitrogen atmosphere. During the preparation process, it should be noted that since Hf(tmhd)4 is volatile, low-temperature operation and sealing operation must be carried out.
Regarding safety information, Hf(tmhd)4 is an organometallic compound, and attention should be paid to its toxicity and the safety of chemical operations. When in use, it is necessary to take appropriate protective measures, such as wearing protective glasses and gloves. In addition, it should be operated in a well-ventilated environment to avoid inhalation of its volatiles. In case of accidental inhalation or contact with skin, seek medical attention or medical assistance immediately.
Hf(tmhd)4 is a red crystal at room temperature. It has a melting point of about 200°C and a higher boiling point. Hf(tmhd)4 has good thermal stability and solubility, and can be dissolved in a variety of solvents. This compound is widely used in the field of organometallic chemical synthesis and material science.
Because Hf(tmhd)4 is stable in solution, it is often used as a catalyst. It acts as a catalyst in certain organic synthesis reactions, such as oxidation, reduction and carbonylation reactions in organic chemical synthesis. In addition, Hf(tmhd)4 can also be used to deposit thin films of the metal hafnium and to prepare other organometallic compounds.
The preparation of Hf(tmhd)4 is mainly obtained by reacting hafnium metal with 2,2, 6,6-tetramethyl -3,5-heptanedione. The reaction is typically carried out under an inert atmosphere, such as a nitrogen atmosphere. During the preparation process, it should be noted that since Hf(tmhd)4 is volatile, low-temperature operation and sealing operation must be carried out.
Regarding safety information, Hf(tmhd)4 is an organometallic compound, and attention should be paid to its toxicity and the safety of chemical operations. When in use, it is necessary to take appropriate protective measures, such as wearing protective glasses and gloves. In addition, it should be operated in a well-ventilated environment to avoid inhalation of its volatiles. In case of accidental inhalation or contact with skin, seek medical attention or medical assistance immediately.
Last Update：2024-04-10 22:29:15
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