8 Matching Annotations
- Sep 2021
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chem.libretexts.org chem.libretexts.org
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NADH is a common biological reducing agent. NADH is an acronym for nicotinamide adenine dinucleotide hydride. Insetad of an anionic donor that provides a hydride to a carbonyl, NADH is actually a neutral donor. It supplies a hydride to the carbonyl under very specific circumstances. In doing so, it forms a cation, NAD+. However, NAD+ is stabilized by the fact that its nicotinamide ring is aromatic; it was not aromatic in NADH.
NADH is a biological reducing agent. It can be used to reduce carbonyl to alcohol.
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- Jan 2021
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2.4 Å apart
- Covalent bond length range : 1-2A
- Hydrogen bond length range: 2.7 - 3.3 A
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Using spectroscopic experiments and computer simulations, Andrei Tokmakoff at the University of Chicago and colleagues show that the line between a hydrogen bond and a covalent bond is blurrier than your textbook suggests (Science 2021, DOI: 10.1126/science.abe1951) .
Recent work on Hydrogen bonding. Andrei Tokmakoff relates hydrogen bonding to covalent bond in F-H-F(-) ion in water using Femtosecond Infrared Spectroscopy
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- Dec 2020
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arstechnica.com arstechnica.com
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blockchain
- Invented by Satoshi Nakamoto
- It is a shared ledger that stores transaction details
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double-spending problem
One of the two main challenges in introducing new coins into the system.
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asymmetric encryption schemes
Important for the development of Bitcoins
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- Jul 2019
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www.google.com www.google.com
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ORTEP
Oak Ridge Thermal Ellipsoid Plot
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- May 2019
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pubs.acs.org pubs.acs.org
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increased resistance toprotease degradatio
fluorine substitution in the protein secondary structure leads to increase in the protein's resistance
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