An organic substance that contains an >NH group attached to two carbon-containing groups of varying complexity is called a secondary amine, and one in which three carbon-containing groups are attached to a nitrogen atom is called a tertiary amine. In all the cases, the lone pair of electrons...
aTwo types of amine compounds were screened as chemical additives for deprotonating amine groups on PEI; namely, alkanolamines and oligomeric polyamines. 胺物化合物的二个类型在PEI被筛选了作为化工添加剂为deprotonating的胺物小组; 即, alkanolamines和齐聚物polyamines。[translate]...
Amine is a type of compound that is derived from ammonia. In other words, amines are basically classified as functional groups or organic nitrogen compounds.
Each alpha-helix is stabilized by hydrogen bonding between the amine and carbonyl groups on the same polypeptide chain. The beta-pleated sheet is stabilized by hydrogen bonds between the amine groups of one polypeptide chain and carbonyl groups on a second adjacent chain. Hydrogen Bonds, Ionic Bon...
The covalent connections that form between the epoxide groups of the resin and the amine groups of the hardener or catalyst as a result of this combination allow the polymer to cross-link, dictating the stiffness and strength of the epoxy. The ability to change mechanical strength qualities and...
These complex topologies, formed mainly of spiro-5 rings and new cage types, also include some of the most structurally complex zeotypes discovered. A comprehen- sive investigation of beryllium–arsenate and beryllium–phosphate framework chemistry was undertaken using a variety of amine tem- plates ...
Besides all of the advantages of first generation solar cells, they have great stability and are commercially viable [223]. The main drawback of the first generation solar cell is the high fabrication cost caused by the requirement for high purified silicon [224]. Although many research groups ...
, or they may act as a proton acceptor i.e. aprotic basic. aprotic solvents are polar compounds of liquid that contain no dissociable atoms of hydrogen. chemical bodies such as o-h and n-h bonds are absent from these solvents. therefore, hydroxyl groups (-oh) and amine groups (-nh 2...
Amine Structure, Properties & Examples4:54 Benzene | Definition, Formula & Uses5:04 Nitrobenzene Structure, Production & Uses Aniline | Definition, Formula & Structure5:00 Phenol | Structure, Definition & Formula5:23 Benzoic Acid | Structure, Formula & Examples4:03 ...
The carbonyl group is composed of two carbon atoms that are double bonded to an oxygen atom. The amine group, in which a nitrogen atom shares a single bond with R groups, is the second. R groups can be regarded of as substituents for other atoms or molecules in a structure. ...