Uranium methoxide

Tetrakis(ethylthio)uranium, 3096 Titanium butoxide, 3730 Titanium(III) methoxide, 1317 Titanium tetraisopropoxide, 3579 Tungsten hexamethoxide, 2604 Zinc ethoxide, 1704... 

Tetrakis(ethylthio)uranium, 3090 Titanium butoxide, 3724 Titanium tetraisopropoxide, 3573 Titanium(III) methoxide, 1313 Tungsten hexamethoxide, 2600 Zinc ethoxide, 1698... 

The volatility of U(OMe)6 has recently attracted attention for laser-induced uranium isotope separation with a CO2 laser. At 330°C, U(OMe)e has a vapor pressure of IVmTorr and A/f biimation = 96 13 kJmol and AS° b,i ation = 318 17 JK mol . From IR and Raman spectroscopic studies of the O and 0 labell methoxide, a good vibrational analysis has been performed, allowing the assignments of the U— O stretching frequencies 505.0cm" ... 

The advantage of this method over the others described in the preceding sections is that the lithium chloride is soluble in methanol, making the separation of insoluble methoxides easily possible. The method was later extended by other workers for the preparation of methoxides of beryllium, " lanthanum,uranium, neptunium, vanadium, iron, ° and copper. ... 

Apart from the monomeric methoxides of the metalloids (B, Si, Ge, As, and Te) which are very volatile and soluble in organic solvents, most of the metal methoxides (except niobium and tantalum pentamethoxides and uranium hexamethoxide) are comparatively nonvolatile and insoluble in common organic solvents. Attempts have been made to... 

Primary and sequential reactions of four small uranium oxide/hydroxide anions, U02, UO3, U04, and U03(0H), with methanol, were studied the experimental observations were evaluated by DFT, with the validity of the computational results—structures and reaction mechanisms—confirmed by isotopic labeling experiments (Michelini et al., 2010). The U02 ion was inert, whereas the other three oxoanions reacted with three methanol molecules via the addition or elimination of formaldehyde, water, or dihydrogen to ultimately produce inert uranyl methoxide anion complexes, [U 02(0CH3)2] or [U 02(0CH3)3] . The structure of the U04 ion reveals four discrete U—O bonds with no O—O bonding. Another notable feature of the DFT results that was verified by isotopic labeling is that the stmcture of... 

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