Chemical state thought to be unobservable characterized
For the first time, MIT chemists have measured the energy of the transition state of a chemical reaction—a fleeting, unstable state that is a reaction's point of no return.
For the first time, MIT chemists have measured the energy of the transition state of a chemical reaction—a fleeting, unstable state that is a reaction's point of no return.
Materials Science
Dec 10, 2015
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578
A team of researchers at Tufts University's School of Arts and Sciences and School of Engineering have discovered that individual atoms can catalyze industrially important chemical reactions such as the hydrogenation of acetylene, ...
Materials Science
Mar 8, 2012
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(PhysOrg.com) -- Two new papers based on data from NASA's Cassini spacecraft scrutinize the complex chemical activity on the surface of Saturn's moon Titan. While non-biological chemistry offers one possible explanation, ...
Space Exploration
Jun 3, 2010
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(PhysOrg.com) -- Mention of nanotubes usually means carbon nanotubes. But not all tiny tubes are made of carbon. For example, layers made of nanoscopic titanium dioxide have proven to be useful materials for biotechnology, ...
Nanomaterials
Sep 8, 2009
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Northwestern University chemists have taken inspiration from plants to revolutionize the way an important industrial chemical is made.
Materials Science
Jun 9, 2022
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How do I store more, and better? This summarizes the challenge of transporting flammable gases. To ensure industrial safety, these gases must be handled at defined temperature and pressure conditions that do not allow for ...
Materials Science
Apr 21, 2022
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Ethylene is one of the most important building blocks in chemical synthesis. Traditional thermocatalytic hydrogenation of acetylene to ethylene (HAE) requires high temperatures and high pressure, leading to excessive energy ...
Materials Science
Dec 8, 2021
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168
We often say that a substrate fits into its enzyme like a key in a lock, but this metaphor is imperfect. Substrate binding can also change the lock (the structure of the enzyme) to induce a perfect fit. In the journal Angewandte ...
Materials Science
Aug 12, 2021
0
120
A more energy-efficient method improves how an industrial gas is purified by reversing the traditional process. The concept was developed and successfully tested by scientists at Kyoto University's Institute for Integrated ...
Analytical Chemistry
Mar 18, 2021
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Ethylene, a key feedstock in the chemical industry, often includes traces of acetylene contaminants, which need to be removed. In the journal Angewandte Chemie, researchers describe a robust and regenerable porous metal–organic ...
Materials Science
Aug 27, 2020
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Acetylene (systematic name: ethyne) is the chemical compound with the formula C2H2. It is a hydrocarbon and the simplest alkyne. This colorless gas is widely used as a fuel and a chemical building block. It is unstable in pure form and thus is usually handled as a solution.
As an alkyne, acetylene is unsaturated because its two carbon atoms are bonded together in a triple bond. The carbon-carbon triple bond places all four atoms in the same straight line, with CCH bond angles of 180°. Since acetylene is a linear symmetrical molecule, it possesses the D∞h point group.
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