Thermolysis of 2,2-dimethoxy-5,5-dimethyl-delta super 3-1,3,4-oxadiazoline studied with photoelectron spectroscopy; He(I) photoelectron spectrum of dimethoxycarbene

Article Abstract:

Gas phase thermolysis of 2,2-dimethoxy-5,5-dimethyl-delta super 3-1,3,4-oxadiazoline carried out in an ultraviolet photoelectron (PE) spectrometer using a CW carbon dioxide laser as a directed heat source at 26 W resulted in a complex PE spectrum with ionization bands of acetone, tetramethoxyethylene and dimethyl oxalate. Dimethoxycarbene seems to have a w conformation based on data from experimental sources and calculations.

Usage, Photoelectron spectroscopy

---

A kinetic study of the reactions of dimethyl sulfide bridged tetramethylplatinum (II) and octamethylplatinum (IV) complexes with dimethyl sulfide and bidentate ligands

Article Abstract:

Rate constants and activation parameters are given for reactions of dimethyl sulfide bridged tetramethylplatinum (II) and octamethylplatinum (IV) complexes with dimethyl sulfide and bidentate ligands. Although substitution mechanisms of the platinum (II) complexes are well-known, less is known about platinum (IV) complexes because substitution causes side reactions. This is not true of methylplatinum (IV) complexes.

Research, Ligand binding (Biochemistry), Platinum compounds

---

Kinetic studies of the sigma-adduct formation and nucleophilic substitution in the reactions of ethyl 2,4,6-trinitrophenyl ether, some phenyl 2,4,6-trinitrophenyl ethers, and phenyl 2,4-dinitronaphthyl ether with aniline in dimethyl sulfoxide

Article Abstract:

Reaction of ethyl 2,4,6-trinitrophenyl ether and aniline in dimethyl sulfoxide with Dabco takes place in two stages. Proton transfer has been shown by kinetic study to be rate limiting in formation of the intermediate and in subsequent decomposition, which is acid catalyzed. Phenoxide is a better leaving group than ethoxide by a considerable margin.

Analysis, Observations, Chemical reaction, Rate of, Chemical kinetics, Catalysis, Ethers, Ethers (Class of compounds), Substitution reactions

Similar abstracts:

• Abstracts: Femtosecond time-resolved photoelectron spectroscopy of polyatomic molecules. Femtosecond laser photoelectron spectroscopy on atoms and small molecules: Prototype studies in quantum control
• Abstracts: A study of the vacuum pyrolysis of para-substituted diazoacetophenones with He(I) ultraviolet photoelectron spectroscopy
• Abstracts: Models of the bis-histidine-ligated electron-transferring cytochromes: comparative geometric and electronic structure of low-spin ferro-and ferrihemes
• Abstracts: Light-induced redox reactions in nanocrystalline systems. Static and dynamic electronic spectroscopy at liquid interfaces
• Abstracts: CC-1065 and the duocarmycins: synthetic studies. Structural aspects of stereodifferentiation in the solid state

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.