An adaptive quantum chemistry workflow builds accurate molecular structures from reliable fragments, offering a practical way ...

Light-induced breakage of chemical bonds can lead to damage in the body and environment, but techniques for studying this photochemical reaction have been limited to before and after snapshots. With ...

Because bond order is a chemical concept, and not an observable in the quantum mechanical sense, there does not exist a unique definition of bond multiplicity in quantum chemistry. Thus, it is ...

The covalent bonds that hold complex molecules together can come in different forms. Atoms like carbon, nitrogen, and oxygen can form both single and double bonds, sharing two or four electrons.

Chemists have set a new world record for the shortest chemical bond ever recorded between two metals, in this case, two atoms of chromium. Scientists discovered the molecule, which has a quintuple ...

Could helium molecules form in very high magnetic fields? In the extreme magnetic fields of white dwarves and neutron stars, a third type of chemical bonding can occur. That is the finding of ...

Open an introductory chemistry textbook. What is a covalent bond? A covalent bond occurs when atoms share electrons in a molecule. What is a hydrogen bond? A hydrogen bond is an electrostatic ...

Suppose I take some hydrogen gas (H 2) and mix it with oxygen gas (O 2). What happens? Nothing. Nothing happens unless you add a bit of energy—from a spark, perhaps. Add energy and BOOM: You get an ...