Sentence examples for no substituent from inspiring English sources

If there is no substituent on the nitrogen (i.e., R′ = H), a primary amine results.

Substance with no substituent on the aromatic ring showed the highest inhibitory activity.

Hydrolysis mainly occurs at glucoses bonded to the substituent, and supporting experiments show that hydrolysis approaches equilibrium when no substituent remains on the cellulose fiber.

The ligands possess substituents in the 4,4′-positions, but have no substituent in the 3,3′-positions to allow a second metal ion access to the salen oxygen atoms.

Optical results demonstrate that the pyrene-terminated dye 3 presents a bigger Stokes shift and slightly smaller fluorescence quantum yield in the red region than BODIPY dye 1 bearing no substituent at 2,6-positions.

The log D7.0 biological activity curve of the derivatives with a methanesulfonamide group shifted leftward compared to that of Pactimibe derivatives with a carboxymethyl group, and derivatives with no substituent, suggesting that a methanesulfonamide group plays an important role in the interaction with ACAT protein.

Between the investigated mercaptopyrimidines only 2-mercaptopyrimidine (with no substituents) shows reduction waves of the pyrimidine nucleus.

Model prodrugs containing electron donating substituents in the 4-position of the phenyl ring decomposed upon storage, while model prodrugs containing no substituents or electron withdrawing substituents in the 4-position were stable.

Thermal analysis and X-ray diffraction experiments indicated that all PAIs 'as polymerized', are amorphous and that polymers having a prevailing para-orientation and no substituents crystallize upon thermal treatments.

If the phosphate has no substituents covalently bound, as in the case of PP i, the binding constant is large.

In fact, the presence of chlorine and nitro group on the aromatic ring of carboxylic acids results in higher yields in amide (18 , 20 Table 4) than substrates that have no substituents or have electron donor groups on the aromatic ring.