14877-41-9

Basic information

• Product Name: TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)COBALT (III)
• Synonyms: Tris-(2,2,6,6-tetramethyl-3,5-heptandionato)cobalt(III);Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)cobalt(III),99%(99.9+%-Co)[Co(TMHD)3];Tris-(2,2,6,6-tetramethyl-3,5-heptanedionato-O,O'')-cobalt;Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)cobalt(III), 99.9% (metals basis);Co(TMHD)3, Cobalt(III) (2,2,6,6-tetramethyl-3,5-heptanedionate);Tris(2,2,6,6tetramethyl-3,5-heptanedionato)cobalt(Ⅲ);Nsc177710;Tris(2,2,6,6-tetraMethyl-3,5-heptanedionato)cobalt(III),98% Co(TMHD)3
• CAS NO: 14877-41-9
• Molecular Formula: C33H57CoO6
• Molecular Weight: 608.74
• Product Categories: metal beta-diketonate complexes;CO
• Mol File: 14877-41-9.mol
• Article Data: 1

Chemical Properties

• Melting Point: 250 °C (dec.)(lit.)
• Boiling Point: 250°C
• Flash Point: subl. 120°C/0.5mm
• Appearance: green/Powder
• Density: g/cm³
• Vapor Pressure: 0.287mmHg at 25°C
• Water Solubility: Insoluble in water.
• Sensitive: Hygroscopic
• CAS DataBase Reference: TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)COBALT (III)(CAS DataBase Reference)
• NIST Chemistry Reference: TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)COBALT (III)(14877-41-9)
• EPA Substance Registry System: TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)COBALT (III)(14877-41-9)

Safety Data

• WGK Germany: 3
• TSCA: No
• Hazardous Substances Data: 14877-41-9(Hazardous Substances Data)

Usage

Description

TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)COBALT (III), also known as Cobalt(III) 2,2,6,6-tetramethyl-3,5-heptanedionate, is a coordination compound with the chemical formula C27H45CoO6. It is a complex molecule consisting of a cobalt(III) ion coordinated to three 2,2,6,6-tetramethyl-3,5-heptanedionate ligands. TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)COBALT (III) is known for its unique chemical and physical properties, making it a versatile compound in various applications.

Uses

Used in Chemical Vapor Deposition (CVD) Industry:
TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)COBALT (III) is used as a precursor for aerosol-assisted CVD of mixed-conducting ceramic films of Sr-Co-Fe perovskite phases. The compound serves as a crucial starting material for the synthesis of these perovskite films, which are known for their excellent electrical and thermal properties. These films have potential applications in various fields, such as solid oxide fuel cells, sensors, and other electronic devices, due to their high conductivity and stability.

InChI:InChI=1/3C11H20O2.Co/c3*1-10(2,3)8(12)7-9(13)11(4,5)6;/h3*7H2,1-6H3;

Upstream product

• 1118-71-4 2,2,6,6-tetramethylheptane-3,5-dione 
• 64-17-5 ethanol 

Relevant articles and documents

Syntheses, structures, and polymorphism of β-diketonato complexes - Co(thd)3

Oxidation of Co(thd)2 dissolved in different solvents has been investigated in air and oxygen atmosphere. In oxygen atmosphere and at the boiling point of the solvents this treatment leads to oxidation of Co II to CoIII, but also to degradation of some of the thd ligands and formation of a new mixed-ligand complex. Three pure-cultivated crystalline Co(thd)3 phases are reported: 1 (room-temperature phase), 2 (low-temperature phase), and 3 (metastable phase) and in addition there exists an amorphous Co(thd)3 phase (4) with approximate composition Co(thd)3·xH(thd); x = 0.06. Reaction of metal(II) oxides (MO, M = Mn, Fe, and Co) with H(thd) under air or O2 atmosphere is an easy direct route to M(thd)3 complexes. Structure determinations are reported for Co(thd)3 (1-3) based on single-crystal X-ray diffraction data. Modification 1 crystallizes in space group P3c1 with a = b = 18.8100(10), c = 18.815(2) A at 295 K; R(wR2) = 0.180, modification 2 in space group C2/c with a = 28.007(12), b = 18.482(8), c = 21.356(9) A, β = 97.999(5)° at 100 K; R(wR2) = 0.211, and modification 3 in space group Pnma with a = 19.2394(15), b = 18.8795(15), c = 10.7808(8) A at 100 K; R(wR2) = 0.193. The molecular structures of 1-3 all comprise a central Co atom octahedrally co-ordinated by the ketonato O atoms of three thd ligands. The transformation between modifications 1 and 2 is of a fully reversible second-order character. Modifications 1 and 3 are, on the other hand, related by a quasi-reversible cycle. Heat treatment (specifically sublimation) of 1 leads to 3 whereas re-crystallization or prolonged storage at room temperature is required to regenerate 1. Co(thd)3 has sufficient thermal stability to permit sublimation without degradation. The various forms of Co(thd) 3 are all diamagnetic, viz. a confirmation of the CoIII valence state.