Search results
Results from the WOW.Com Content Network
In the example, there is a bromo-substituted -CH 2-CH 2 - subunit. 1-Bromoethane-1,2-diyl is chosen in preference to 2- bromoethane-1,2-diyl as the former has a lower locant for the bromo-substituent. The preferred CRU is therefore oxy(1-bromoethane-1,2-diyl) and the polymer is thus named poly[oxy(1-bromoethane-1,2-diyl)].
The protonation of substituted aniline is inhibited by steric hindrance. When protonated, the nitrogen in the amino group changes its orbital hybridization from sp 2 to sp 3 , becoming non-planar. This leads to steric hindrance between the ortho-substituted group and the hydrogen atom of the amino group, reducing the stability of the conjugate ...
Bromoethane, also known as ethyl bromide, is a chemical compound of the haloalkanes group. It is abbreviated by chemists as EtBr (which is also used as an abbreviation for ethidium bromide ). This volatile compound has an ether-like odor.
Ion-exchange resin beads. An ion-exchange resin or ion-exchange polymer is a resin or polymer that acts as a medium for ion exchange, that is also known as an ionex. [1] It is an insoluble matrix (or support structure) normally in the form of small (0.25–1.43 mm radius) microbeads, usually white or yellowish, fabricated from an organic polymer substrate.
In ortho-substitution, two substituents occupy positions next to each other, which may be numbered 1 and 2.In the diagram, these positions are marked R and ortho.; In meta-substitution the substituents occupy positions 1 and 3 (corresponding to R and meta in the diagram).
This article about chemical compounds is a stub. You can help Wikipedia by expanding it.
How to use corn syrup. Corn syrup is a baker’s secret weapon. It prevents sugar from crystallizing (or lumps from forming). It’s a common ingredient in caramel sauce and recipes that use a hot ...
Bromoiodomethane is a halomethane with the formula BrCH 2 I. It is a colorless liquid, although older samples appear yellow. The compound has been investigated as a reagent for cyclopropanation by the Simmons-Smith reaction, but diiodomethane and chloroiodomethane are preferred.