In the title compound, C(4)H(12)N(+)·C(9)H(3)Cl(4)O(4) (-), the benzene ring forms dihedral angles of 62.4 (2) and 64.0 (3)°, respectively, with the essentially planar methoxy-carbonyl and carboxyl-ate groups. In the crystal structure, inter-molecular N-H⋯O hydrogen bonds connect anions and cations, forming one-dimensional chains along [010].

In the title complex, (C(8)H(20)N)[Re(C(5)H(3)N(2)O(2))Cl(CO)(3)], the Re(I) atom is coordinated facially by three carbonyl groups; the bidentate pyrazine-carboxyl-ato ligand and a chlorine atom complete the distorted octa-hedral coordination.

The coordination around the Sb atom in the title compound, (C(6)H(16)N)[Sb(C(14)H(10)O(3))(2)], is fourfold in a pseudo-trigonal-bipyramidal pattern in which one of the equatorial sites is occupied by the stereoactive lone pair of electrons. The four ligating atoms comprise the hydoxylate and carboxyl-ate O atoms from two independent benzilate ligands, each of which forms a five-membered chelat...

The sialic acid of gangliosides not containing GalNAc (i.e., GM3, GD3) is readily hydrolyzed either enzymatically by sialidases or chemically in acid conditions. On the other hand, in gangliosides having the sialic acid on the internal galactose residue linked to GalNAc (i.e., GM1, GM2) the Neu5Ac is largely resistant to acid or enzymatic hydrolysis. In the present work GM1 (NH4+), GM1(H+), and...

The present work describes synthetic concepts for the coupling of peptides to polyphenylene dendrimers (PPDs). Novel functionalized cyclopentadienones have been synthesized whose Diels-Alder cycloaddition with various core molecules leads to polyphenylene dendrimers possessing (protected) amino or carboxyl groups. In addition, the resulting functionalized molecules exhibit the characteristic sh...

Phenolic compounds, which are emitted in significant amounts from biomass burning, can undergo fast reactions in atmospheric aqueous phases to form secondary organic aerosol (aqSOA). In this study, we investigate the reactions of phenol (compound with formula C6H5OH)), guaiacol (2-methoxyphenol), and syringol (2,6-dimethoxyphenol) with two major aqueous-phase oxidants – the triplet excited stat...

A magnetic nanoparticle conjugated mesoporous nanocatalyst (Fe(3)O(4)@mesoporous SBA-15) with a high surface area has been synthesized by chemical conjugation of magnetite (Fe(3)O(4)) nanoparticles with functionalized mesoporous SBA-15. Functionalized mesoporous SBA-15 containing surface carboxyl and amino groups was synthesized via the thiol-ene click reaction of cysteine hydrochloride and vin...