منابع مشابه
Calculated Infrared Spectra of Hydrogen-Bonded Methanol–Water, Water–Methanol, and Methanol–Methanol Complexes
Ab initio calculations at the B3LYP/aug-cc-pVDZ, B3PW91/aug-ccpVDZ, MP2/aug-cc-pVDZ, B3LYP/6-311 G(2d,2p), B3PW91/6-311 G(2d,2p), and MP2/6-311 G(2d,2p) levels are performed for the IR spectra of isolated water and methanol molecules and hydrogen-bonded water–methanol, methanol–water, and methanol–methanol complexes. Frequency shifts and changes in intensities are obtained for the proton donor ...
متن کاملMethanol poisoning.
A 22-year-old male presented with acute onset vomiting, diarrhea, abdominal pain and altered sensorium. He had a history of acute alcohol intake (locally made with solvent) a day prior to the presentation. Biochemical investigations revealed severe metabolic acidosis. Diagnosis of methanol poisoning was made on the basis of history and biochemical abnormality. Magnetic resonance imaging (MRI) d...
متن کاملLine breaking and page breaking
In their seminal paper of 1981, Knuth and Plass described how to apply the method of discrete dynamic programming to the problem of breaking a paragraph into lines. This paper outlines how the same method can be applied to the problem of page make up, or in other words breaking paragraphs into pages. One of the key ideas is that there must be interaction between the line breaking and page break...
متن کاملVibrational relaxation of the free terminal hydroxyl stretch in methanol oligomers: Indirect pathway to hydrogen bond breaking
Vibrational relaxation of methanol-d ~MeOD! in carbon tetrachloride has been investigated via ultrafast infrared pump–probe experiments. Exciting at 2690 cm, only the free O-D ~where the D is not H-bonded! stretching mode is initially populated. For MeOD mole fractions <0.025, a 2.15 ps single exponential decay is observed. At mole fractions >0.0375, the signal decays ~2.15 ps decay time! below...
متن کاملMethanol poisoning.
Methanol poisoning is an uncommon but an extremely hazardous intoxication. Since methanol is a versatile fuel and is having increasing usage in an energy-conscious society, a high index of suspicion and swift laboratory confirmation is essential in managing this poisoning. Methanol poisoning may occur in sporadic or epidemic circumstances. Chronic exposure may occur in the occupational setting....
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ژورنال
عنوان ژورنال: Science
سال: 2010
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.330.6000.12-a