| If the ketone side group of the dye is protonated, there will be a shift in the conjugation of the double bonds. |
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| An acetyl group was attached to residue 22 to mimic the preceding peptide bond and the C-terminal carboxylate was protonated. |
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| It can react either as an oxidant or a reducing agent, is a very good nucleophile, and is a base that can be protonated. |
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| Xanthate anions and protonated xanthic acid contain a free thiol moiety and are highly reductive. |
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| On the other hand, in polar conjugated systems such as protonated Schiff bases the funnel shows a structure with just one twisted double bond. |
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| Initially, a single protonated surfactin molecule was equilibrated in vacuum. |
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| We postulate that this pathway is blocked when both groups are protonated or deprotonated. |
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| In the second basic photocycle step, the chromophore is protonated and structural changes take place in the protein. |
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| This reaction probably involves proton transfer followed by electron transfer, which is the reason that the protonated imine is easier to reduce than the aldehyde. |
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| We present a comparative study of the ultrafast photophysics of all-trans retinal in the protonated Schiff base form in solvents with different polarities and viscosities. |
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| The chemical state of dopamine changes from a protonated hydroquinone in acidic media to an oxidized quinone in basic environments. |
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| No one has ever observed hydrogen atoms in a glycoside hydrolase enzyme, and until now we did not know how the catalytic glutamic acid residue is protonated, said Kovalevsky. |
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| After some of the isoxazolidines were protonated, a rearrangement occurred through an oxonium ion intermediate to form a unique spirocyclic system. |
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| In another approach, pyrazole, imidazole, and triazole, were blended with polymers that have acidic units and proton transport was performed by protonated azole units. |
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