75-17-2Relevant articles and documents
A Study by He I Photoelectron Spectroscopy of Monomeric Nitrosomethane, the Cis and Trans Dimers, and Formaldoxime
Frost, D. C.,Lau, W. M.,McDowell, C. A.,Westwood, N. P. C.
, p. 3577 - 3581 (1982)
A combination of in situ He I photoelectron and quadrupole mass spectroscopy has been used to study monomeric nitrosomethane, the cis and trans isomers, and formaldoxime.In contrast to earlier results it is shown that cis-(CH3NO)2 sequentially gives CH2=NOH and CH3NO upon vaporization.A photoelectron spectrum of the cis dimer was not observed.In addition, a previous spectrum of "monomeric" CH3NO is shown to belong to the trans dimer.The assignments of the measured ionization potentials for these species are supported by semiempirical HAM/3 results.A breakdown of Koopmans' theorem is confirmed for CH3NO by a calculation involving perturbation corrections.
Complexation of formaldoxime with water. Infrared matrix isolation and theoretical studies
Golec, Barbara,Mucha, Ma?gorzata,Mielke, Zofia
, p. 461 - 466 (2012)
The 1:1, 1:2 and 2:1 formaldoxime-water complexes isolated in the argon matrices have been studied by help of FTIR spectroscopy and MP2/6-311++G(2d,2p) method. The calculations predicted the stability of the three CH 2NOH?H2O isomeric complexes, three CH 2NOH?(H2O)2 ones and one (CH 2NOH)2?H2O complex. The analysis of the experimental spectra and their comparison with theoretical ones indicated that both the 1:1 and 1:2 complexes trapped in solid argon have the most stable cyclic structures stabilized by the O-H?O and O-H?N bonds between the formaldoxime and water molecules. In the 1:2 complex formaldoxime interacts with the water dimer, one H2O molecule acts as a proton acceptor for the OH group of formaldoxime whereas the second H2O molecule acts as a proton donor toward the nitrogen atom of the formaldoxime molecule. In the (CH2NOH)2?H2O complex the OH group of the water molecule acts as a proton donor toward one of the oxygen atoms of the formaldoxime cyclic dimer.
Formaldoxime hydrogen bonded complexes with ammonia and hydrogen chloride
Golec, Barbara,Mucha, Ma?gorzata,Sa?dyka, Magdalena,Barnes, Austin,Mielke, Zofia
, p. 68 - 75 (2015/02/19)
An infrared spectroscopic and MP2/6-311++G(2d,2p) study of hydrogen bonded complexes of formaldoxime with ammonia and hydrogen chloride trapped in solid argon matrices is reported. Both 1:1 and 1:2 complexes between formaldoxime and ammonia, hydrogen chloride have been identified in the CH2NOH/NH3/Ar, CH2NOH/HCl/Ar matrices, respectively, their structures were determined by comparison of the spectra with the results of calculations. In the 1:1 complexes present in the argon matrices the OH group of formaldoxime acts as a proton donor for ammonia and the nitrogen atom acts as a proton acceptor for hydrogen chloride. In the 1:2 complexes ammonia or hydrogen chloride dimers interact both with the OH group and the nitrogen atom of CH2NOH to form seven membered cyclic structures stabilized by three hydrogen bonds. The theoretical spectra generally agree well with the experimental ones, but they seriously underestimate the shift of the OH stretch for the 1:1 CH2NOH?NH3 complex.
Spiroindolinone Derivatives
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Page/Page column 17, (2009/07/10)
There are provided compounds of the formula and pharmaceutically acceptable salts and esters and enantiomers thereof wherein W, X, X′, Y, V, V′, A, B and R are as described herein. The compounds have utility as antiproliferative agents, especially, as anticancer agents.
