Melting and boiling are changes of state.

These models show how the atoms and bonds are arranged in space. The diagram shows a ball-and-stick model of ammonia.

The design and synthesis of supramolecular systems invokes interactions beyond the covalent bond, using, for example, hydrogen bonding, metal coordination and π interactions to bring discrete ...

Attribution (BY): Credit must be given to the creator. Covalent organic frameworks (COFs) are created by the condensation of molecular building blocks and nodes to form two-dimensional (2D) or ...

The catalysts operate both through the transient formation of covalent bonds, such as in enamine and imminium catalysis, as well as through non-covalent interactions, such as in hydrogen bonding ...

Definition: A sovereign bond is a specific debt instrument issued by the government. They can be denominated in both foreign and domestic currency. Just like other bonds, these also promise to pay the ...

State Key Laboratory of Organic−Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China State Key ...

Co-leads O’Neil and Munoz orchestrate a team of comanagers, including Jeff Moore, another long-tenured Fidelity contributor with whom he shares a seat on the core bond desk, as well as Michael ...

Netherlands 10 Year Government Bond 0.0170 2.3207% ...

The strategy balances incentivizing its named managers to stick to a straightforward core bond approach while granting them the flexibility to draw on their respective areas of expertise and ...

Thanasis / Getty Images According to Treasury Direct, interest from EE U.S. savings bonds is taxed at the federal level but not at the state or local levels for income. Bonds typically earn ...

Yet even this friendly fellow has its limits. Take Bredt's rule for instance, which says stable two-laned connections known as covalent double bonds won't form adjacent to any V-shaped bridges that ...