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4-Aminopyridinium hydrogen succinate
In the title salt, C5H7N2 +·C4H5O4 −, the asymmetric unit comprises an aminopyridinium cation and a hydrogen succinate anion as protonation of the aromatic N atom of the 4-aminopyridine molecule hasExpand
Bis[2,4-diamino-5-(3,4,5-trimethoxybenzyl)pyrimidin-1-ium] DL-malate.
The structure of the salt of trimethoprim with racemic DL-malic acid reported here is the first of its kind and the cyclic hydrogen-bonded motif observed in this structure is self-organized, leading to novel types of hydrogen- bonding motifs in supramolecular patterns. Expand
Synthesis of meso-substituted chlorins via tetrahydrobilene-a intermediates.
Chlorin building blocks incorporating a geminal dimethyl group in the reduced ring and synthetic handles in specific patterns at the perimeter of the macrocycle are expected to have utility inExpand
Functional Models for Catechol 1,2-Dioxygenase. Synthesis, Structure, Spectra, and Catalytic Activity of Certain Tripodal Iron(III) Complexes
A series of iron(III) complexes of tetradentate tripodal ligands [L1−H2(L7); L1 = tris(pyrid-2-ylmethyl)amine, L2 = bis(pyrid-2-ylmethyl)(pyrid-2-ylethyl)amine, H(L3) =Expand
Copper(II) Complexes with Unusual Axial Phenolate Coordination as Structural Models for the Active Site in Galactose Oxidase: X-ray Crystal Structures and Spectral and Redox Properties of [Cu(bpnp)X]
The present complexes exhibit several spectral features also similar to this enzyme, and the study of the interaction of the acetate complex with N(3)(-) and CN(-) ions provide insight into the anion binding properties of the enzyme. Expand
Synthesis, structure, spectra and redox chemistry of iron(III) complexes of tridentate pyridyl and benzimidazolyl ligands
A series of high-spin octahedral 1 : 2 iron(III) complexes of Schiff bases derived from salicylaldehyde and aromatic amines and the 1 : 1 and 1 : 2 complexes of bis(pyridin-2-yl)-aza andExpand
Metal-nucleobase interactions: Synthesis and crystal structure of trichlorobis(N6-benzyl adeninium) copper(II) chloride dihydrate
The crystal structure of trichlorobis(N6-benzyl adeninium)copper(II) chloride dihydrate has been investigated to explore the relation among site of protonation, mode/site of coordination, andExpand
Thia­mine dichloride monohydrate: vitamin B1 (form III)
Two different forms of the title compound, C12H18N4OS2+·2Cl−·H2O, have already been reported [Kraut & Reed (1962). Acta Cryst. 15, 747–757; Suh et al. (1982). J. Korean Phys. Soc. 15, 114–121]. InExpand
4,4′-Dimethoxybenzophenone: a triclinic polymorph
The title compound, C15H14O3, has been found to crystallize as a new triclinic polymorph, which contains two independent molecules, which differ slightly in the orientations of the two benzene rings. Expand
A new antimetabolite, 5-morpholinomethyl-2-thiouracil—spectral properties, thermal profiles, antibacterial, antifungal and antitumour studies of some of its metal chelates
A new antimetabolite of thymine, 5-morpholinomethyl-2-thiouracil (MMTU) has been synthesized via the Mannich reaction of 2-thiouracil, formaldehyde and morpholine. The product was chemically andExpand