Covalent in a sentence

Coordinate covalent bond (Dipolar bond) Adduct of ammonia and boron trifluoride A coordinate covalent bond is a covalent bond in which the two shared bonding electrons are from the same one of the atoms involved in the bond.

Covalent carbides The carbides of silicon and boron are described as "covalent carbides", although virtually all compounds of carbon exhibit some covalent character.

Bonding in ceramics and glasses uses covalent and ionic-covalent types with SiO 2 (silica or sand) as a fundamental building block.

Historically, products arising from the linkage of repeating units by covalent chemical bonds have been the primary focus of polymer science ; emerging important areas of the science now focus on non-covalent links.

In principle, the distance between two atoms that are bound to each other in a molecule (the length of that covalent bond) should equal the sum of their covalent radii.

Network covalent structures (or giant covalent structures) contain large numbers of atoms linked in sheets (such as graphite ), or 3-dimensional structures (such as diamond and quartz ).

Often the polar covalent bonds are shorter than would be expected on the basis of the sum of covalent radii.

There are countless examples of covalent modifications that cellular proteins can undergo; however, phosphorylation is one of the few reversible covalent modifications.

The two main methods of carbon nanotube functionalization are covalent and non-covalent modifications.

This can involve covalent modification of histones, the incorporation of histone variants, and non-covalent remodelling by ATP-dependent remodeling enzymes.

Types of covalent bonds Atomic orbitals (except for s orbitals) have specific directional properties leading to different types of covalent bonds.

Within the sheet, the bonding is covalent and has hexagonal symmetry, but there are no covalent bonds between the sheets, making graphite easy to cleave into flakes.

The difference is it's -- the defining aspect of pneumococcal conjugate vaccines is the covalent bond between the polysaccharide sugar and the protein.

That gave them the ability to scan a flake of borophene to sense electrons that correspond to covalent bonds between boron atoms.

A component of the library can be stabilized by adding a template than can form non-covalent bonds with it.

Additionally, francium superoxide (FrO 2 ) is expected to have covalent character, unlike the other alkali metal superoxides, because of bonding contributions from the 6p electrons of francium.

A diamond is a transparent crystal of tetrahedrally bonded carbon atoms in a covalent network lattice ( sp 3 ) that crystallizes into the diamond lattice which is a variation of the face centered cubic structure.

Advanced theory of the hydrogen bond In 1999, Isaacs et al. citation showed from interpretations of the anisotropies in the Compton profile of ordinary ice that the hydrogen bond is partly covalent.

Another example of a metal–metal covalent bond is mercurous ion ( Hgmain ).

At lower pressures however the bonding becomes entirely localized into a regular covalent bond.