Volatility by Design. Synthesis and Characterization of Polyether Adducts of Bis(1,1,1,5,5,5-hexafluoro-2,4-pentanedionato)barium and Their Implementation as Metal-Organic Chemical Vapor Deposition Precursors was written by Belot, John A.;Neumayer, Deborah A.;Reedy, Charles J.;Studebaker, Daniel B.;Hinds, Bruce J.;Stern, Charlotte L.;Marks, Tobin J.. And the article was included in Chemistry of Materials in 1997.Recommanded Product: 112-59-4 The following contents are mentioned in the article:
The synthesis and characterization of polyethers and volatile, low-melting polyether complexes of bis(1,1,1,5,5,5-hexafluoro-2,4-pentanedionato)barium Ba(hfa)2·RO(CH2CH2O)nR’ where R = R’ = Me, n = 3; R = Me, R’ = Et, n = 3; R = R’ = H, n = 5, 6; R = R’ = Me, n = 4; R = Me, R’ = Et, n = 5; R = Me, R’ = Bu, n = 5, 6; R = Me, R = C5H11O, n = 3; R = Me, R’ = n-C6H13, n = 4, 5; R = Et, R’ = Bu, n = 5; R = Bu, R’ = Bu, n = 4, 6; R = Bu, R’ = n-C6H13, n = 5 are reported. The complexes are conveniently synthesized by reaction of n-propylammonium+hfa– in DMF with an aqueous solution of Ba(NO3)2 and the polyether or, alternatively, by reaction of the polyether with Ba(hfa)2 in toluene. These new complexes were characterized by elemental anal., FTIR, 1H, 13C, and 19F NMR, MS, x-ray diffraction (Ba(hfa)2·CH3O(CH2CH2O)3CH3·H2O, Ba(hfa)2·CH3O(CH2CH2O)5C2H5), and TGA. The m.ps. of the complexes are strongly dependent on the architecture of the polyether chain and dimensions of the terminal polyether substituent, with the lowest m.ps. corresponding to the longest polyethers having the largest terminal groups. The volatility of the Ba(hfa)2·polyether compounds is dependent on mol. weight and mol. structure; however, there is little direct correlation between m.p. depression and enhanced volatility. The applicability of these complexes in metal-organic CVD is demonstrated by the successful growth of phase-pure BaTiO3 thin films using Ba(hfa)2·CH3O(CH2CH2O)5C2H5 as the Ba source. Phase composition and epitaxy in these films is analyzed by energy-dispersive x-ray spectroscopy and x-ray diffraction Θ-2Θ, ω, and φ scans. This study involved multiple reactions and reactants, such as 2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4Recommanded Product: 112-59-4).
2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4) belongs to ethers. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Recommanded Product: 112-59-4
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem