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单词 carbonyl
例句 carbonyl
“Carbon monoxide plus iron gives the volatile iron carbonyl.” I, Robot 1950-12-02T00:00:00Z
Volcanoes and industrial emissions are the main natural sources of sulfur dioxide, one precursor of sulfates; carbonyl sulfide, a gas emitted by microbes in the oceans, is another. Could solar geoengineering cool the planet? U.S. gets serious about finding out 2023-02-13T05:00:00Z
In addition to simple ices such as water, carbon dioxide, carbon monoxide, ammonia, and methane, Webb sees several other compounds, including carbonyl sulphide and the more complex organic ice methanol. Webb telescope hunts life's icy chemical origins 2023-01-24T05:00:00Z
Compounds that have a nitrogen atom bonded to one side of a carbonyl group are classified as amides. Chemistry 2019-02-14T00:00:00Z
Some of the important functional groups in biological molecules are shown in Figure 2.29; they include: hydroxyl, methyl, carbonyl, carboxyl, amino, phosphate, and sulfhydryl. Biology for AP Courses 2022-06-09T00:00:00Z
However, analogues in which a methyl group is attached next to the carbonyl group were poor substrates. Catalytic machinery of enzymes expanded 2019-05-26T04:00:00Z
The air that reaches the South Pole is so well mixed that its carbonyl sulfide level reflects the worldwide growth of plants. Antarctic Ice Reveals Earth’s Accelerating Plant Growth 2017-04-05T04:00:00Z
When it burns, it releases corrosive and toxic hydrogen fluoride and the highly toxic gas carbonyl fluoride. How the Chemical Industry Joined the Fight Against Climate Change 2016-10-16T04:00:00Z
In an aldehyde, the carbonyl group is bonded to at least one hydrogen atom. Chemistry 2019-02-14T00:00:00Z
Figure 3.5 Monosaccharides are classified based on the position of their carbonyl group and the number of carbons in the backbone. Biology for AP Courses 2022-06-09T00:00:00Z
Near Hobby airport: Buffalo Flange, with just as much toxic and flammable iron carbonyl. Hazardous chemicals post secret threat to Texas neighbors 2016-05-12T04:00:00Z
Last year, Dr. Campbell and his colleagues analyzed carbonyl sulfide records from the past 54,000 years. Antarctic Ice Reveals Earth’s Accelerating Plant Growth 2017-04-05T04:00:00Z
For the chemists among you, urea is an organic chemical compound composed of two amidogen groups joined by a carbonyl functional group. How Urine Could Have Kept Volkswagen’s Nose Clean 2015-09-22T04:00:00Z
We can prepare a carbonyl group by oxidation of an alcohol—for organic molecules, oxidation of a carbon atom is said to occur when a carbon-hydrogen bond is replaced by a carbon- oxygen bond. Chemistry 2019-02-14T00:00:00Z
Other functional groups, such as the carbonyl group, have a partially negatively charged oxygen atom that may form hydrogen bonds with water molecules, again making the molecule more hydrophilic. Biology for AP Courses 2022-06-09T00:00:00Z
The average value for the carboxyl group is 119.75 calories, i.e. it is equal to the sum of the thermal effects of the aldehyde and carbonyl groups. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago"
As new land was uncovered, plants sprang up and began destroying carbonyl sulfide. Antarctic Ice Reveals Earth’s Accelerating Plant Growth 2017-04-05T04:00:00Z
As the reaction is mainly confined to the cellulose of the fibre, we have this additional evidence that the typical carbonyl is of ketonic function. Researches on Cellulose 1895-1900
Amides are molecules that contain nitrogen atoms connected to the carbon atom of a carbonyl group. Chemistry 2019-02-14T00:00:00Z
By convention, the carbon atoms in a monosaccharide are numbered from the terminal carbon closest to the carbonyl group. Biology for AP Courses 2022-06-09T00:00:00Z
By the action of hydroxylamine or phenylhydrazine on aldehydes or ketones, condensation occurs between the carbonyl oxygen of the aldehyde or ketone and the amino group of the hydroxylamine or hydrazine. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago"
Plants draw in carbonyl sulfide along with carbon dioxide. Antarctic Ice Reveals Earth’s Accelerating Plant Growth 2017-04-05T04:00:00Z
In both aldehydes and ketones, the geometry around the carbon atom in the carbonyl group is trigonal planar; the carbon atom exhibits sp2 hybridization. Chemistry 2019-02-14T00:00:00Z
The resulting bond—between the carbonyl group carbon atom and the amine nitrogen atom is called a peptide link or peptide bond. Chemistry 2019-02-14T00:00:00Z
In the α-helix structure, the hydrogen bonds form between the oxygen atom in the carbonyl group in one amino acid and another amino acid that is four amino acids farther along the chain. Biology for AP Courses 2022-06-09T00:00:00Z
By transformations of the carbonyl group, and at the same time of the hydroxyl group, many interesting types of nitrogen compounds may be correlated. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago"
As a result, the level of carbonyl sulfide in the air drops as plants grow. Antarctic Ice Reveals Earth’s Accelerating Plant Growth 2017-04-05T04:00:00Z
The unhybridized p orbital on the carbon atom in the carbonyl group overlaps a p orbital on the oxygen atom to form the π bond in the double bond. Chemistry 2019-02-14T00:00:00Z
In a ketone, the carbonyl group is bonded to two carbon atoms: Chemistry 2019-02-14T00:00:00Z
Alcohols that have their –OH groups in the middle of the chain are necessary to synthesize a ketone, which requires the carbonyl group to be bonded to two other carbon atoms: Chemistry 2019-02-14T00:00:00Z
Both carboxylic acids and esters contain a carbonyl group with a second oxygen atom bonded to the carbon atom in the carbonyl group by a single bond. Chemistry 2019-02-14T00:00:00Z
In the mid-2000s, atmospheric scientists discovered a powerful new way to measure plant growth: by studying an unimaginably rare molecule called carbonyl sulfide. Antarctic Ice Reveals Earth’s Accelerating Plant Growth 2017-04-05T04:00:00Z
Decaying organic matter in the ocean produces carbonyl sulfide, a gas that then floats into the atmosphere. Antarctic Ice Reveals Earth’s Accelerating Plant Growth 2017-04-05T04:00:00Z
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