The world's first wiki where authorship really matters (Nature Genetics, 2008). Due credit and reputation for authors. Imagine a global collaborative knowledge base for original thoughts. Search thousands of articles and collaborate with scientists around the globe.

wikigene or wiki gene protein drug chemical gene disease author authorship tracking collaborative publishing evolutionary knowledge reputation system wiki2.0 global collaboration genes proteins drugs chemicals diseases compound
Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Molybdenum carbonyl complexes with pyridylimino acidato ligands.

Reactions of [Mo(CO)(4)(pip)(2)] with pyridine-2-carbaldehyde and the appropriate amino ester or amino acid produce complexes with chelated pyridylimino ligands bearing, respectively, an ester () or carboxylate (, , ) pendant arm, the structures of which have been determined by X-ray crystallography. In the case of alpha-amino acids, the resulting imino carboxylate complexes are unstable towards decarboxylation, this being complete for (R)-2-phenylglycine. The products of decarboxylation were isolated and characterized, including X-ray structure determinations for and . In contrast, the derivatives of beta-alanine () and 3- and 4-aminobenzoic acids () are stable towards decarboxylation. The structure determinations show that the pyridyliminocarboxylate complexes crystallize as salts with piperidinium cations, forming hydrogen-bonded ion-pair dimers featuring twelve- or eight-membered rings. Protonation of carboxylate complexes with 2 M HCl in CH(2)Cl(2)/water yields the corresponding neutral complexes containing a free carboxylic acid functionality.[1]


  1. Molybdenum carbonyl complexes with pyridylimino acidato ligands. García-Rodríguez, R., Miguel, D. Dalton transactions (Cambridge, England : 2003) (2006) [Pubmed]
WikiGenes - Universities