Many molecules exhibit multiple rotational isomers (conformers) that interconvert thermally and are difficult to isolate. Consequently, a precise characterization of their role in chemical reactions has proven challenging. We have probed the reactivity of specific conformers by using an experimental technique based on their spatial separation in a molecular beam by electrostatic deflection. The...

Two new azide bound cobalt(III) complexes, [Co(L(1))(N3)3] (fac-1) and [Co(L(2))(N3)3] (mer-2), where L(1) is bis(2-pyridylmethyl)amine and L(2) is (2-pyridylmethyl)(2-pyridylethyl)amine, derived from tridentate reduced Schiff-base ligands have been reported. Interestingly, a methylene bridge regulated preferential coordination mode of ligands is noticed in their crystal structures: it is found...

Two novel probes were designed, sharing the same BODIPY core but differing only by a minimized variation in the recognition site from 4-hydroxyaniline into 4-methoxyaniline. Such a small change in the reaction site could switch the selective detection from peroxynitrite to HOCl. Undoubtedly, the new designed BODIPY core exhibits valuable properties.

An ortho-nitrophenol solution was injected into the intestine which had been removed from an anesthetized mouse by placing a ligature at the duodenum and at the rectum. The intestine was then incubated in Ringer's solution at 37•Ž and the ortho-nitrophenol was found to be reduced to ortho aminophenol. At the same time, it was found that ortho-nitrophenol which was incubated with the intestinal ...

Metalloenzymes that activate molecular oxygen possess great potential as catalyst for specific oxidation reactions and as guides for the development of efficient small molecule catalysts. These lowmolecular metal complexes serves as functional model and catalyze the same (or a closely related) reaction as does the metalloenzyme to be mimicked. In combination with the structural models which mim...

Paracetamol that is known as acetaminophen have the most consume as an analgesic and antipyreticdrug in the world. That is formulated in single compound or mixture at many forms such astablets, syrups, suspensions and drops. The last form is intravenous injections. Paracetamol derivedfrom 4-minophenol which is synthesized by acylated the P-acetaminophenol and acetic anhydride.4-aminophenol is t...

Potentially tridentate, phosphine-containing Schiff bases with P,N,O and P,N,P donor sets have been prepared from 2-(diphenylphosphino)benzaldehyde, salicylaldehyde, 2-aminophenol 2-((diphenylphosphino)phenyl)methylamine reacted (NEt4)2[Re(CO)3Br3] in methanol. Deprotonation the formation of neutral [Re(CO)3(L)] complexes tridentate coordination has obtained for salicylidene derivatives, while ...

From the acetone extract of the North American toadstool Lepiota americana 2-aminophenoxazin-3-one (1) and a novel amino-1,4-benzoquinone derivative, lepiotaquinone (2), were isolated. The structure of 2 was confirmed by its preparation from 2-aminophenol and amino-1,4-benzoquinone.