Textbooks currently define a hydrogen bond as a weak electrostatic interaction that forms between a lone pair of electrons on an electronegative atom and a hydrogen atom bonded to another strongly ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Scientists have just seen for the first time one of the most important physical interactions in our world — the special type of bond called the hydrogen bond that holds our DNA together and gives ...

Chemists have a plan to make ghosts in the lab, by bonding an atom to a patch of empty space. Normal chemical bonds anchor two atoms together, usually through sharing their electrons. Now, theorists ...

Hydrogen-bonding pairing regulates protein-ligand affinity; helps improve drug design. Infections with bacterium Clostridium difficile have rapidly become a significant medical problem in hospitals ...

Hydrogen bonding in ammonia clusters is a subject which has garnered increasing attention due to its fundamental role in defining the structural and dynamic properties of molecular aggregates. Unlike ...

Hydrogen-based fuel cells hold promise for sustainable power generation, but to become practical they need to be more efficient and cost effective. Scientists at Pacific Northwest National ...

THE view is very generally expressed 1 that sulphur does not take part in hydrogen-bond formation. This conclusion is based mainly on the normal physical properties of hydrogen sulphide, as com pared ...

Carboxylic acids are ubiquitous in bioactive organic molecules and readily available chemical building blocks. Carboxylic acids can be converted into carboxy radicals that can initiate versatile ...

The carbon-hydrogen bond -- 2/3 of all bonds in hydrocarbons -- has defied chemists' attempts to open it up and add new chemical groups. A team has now cracked the strongest of C-H bonds, those on a ...