All Alone, Ammonia And Hydrogen Chloride Use Negativity To Get Attached: Environmental Electrons Stimulate Acid-base Reactions Feb 19, 2008
The attraction is not as strong as the so-called covalent bond between the nitrogen and its fan base, but the ammonium and chloride form an ionic bond, one that forms when opposites attract ... The bond could be either ionic in nature or more like a so-called hydrogen bond, weaker than both ionic and covalent bonds but with characteristics of each. (Science Daily)
Carbon Monoxide: Useful but Deadly Feb 3, 2008
Carbon monoxide is a gas made up of molecules containing one carbon atom and one oxygen atom joined together with a multiple covalent bond. It is used in industry to make chemicals useful in other processes such as aldehydes that can be used to make detergents, methanol which can be used to make larger hydrocarbon molecules, and in the production of acetic acid. (Suite101.com)
* Energy crisis could save first nuclear plant: AEC Dec 25, 2007
Examples included radiation treatments for cancer, the sterilization of medical equipment and exported agricultural products, and cross-linking induction, a technology where a covalent bond is created to link one polymer chain to another, which changes the molecular property of a substance, Yeh said. Application examples included the use of radiation to make fabrics more breathable and absorbent, he said. (Taipei Times, Taiwan -- World)
New Path For Designing Novel Nanomaterials Discovered Oct 14, 2007
They found that the atomic orbitals changed the nature of their symmetry at the interface and created a covalent bond between the copper and manganese atoms. This bonding does not exist in the bulk of the individual materials. (Science Daily)
How Enzymes Work: Central Mechanism Discovered Jun 21, 2007
The critical experiment by the UB researchers was to clip the covalent bond that links the phosphate groups to the substrate. "We have found that the interactions between phosphate groups and several enzymes are used to promote the chemistry even in the absence of a covalent linkage," said Richard. (Science Daily)
