A series of silver(I)
camphorsulfonato complexes containing various
phosphine ligands having the stoichiometry [Ag(camphSO3)(PR3)] [PR3 = PTA (1,3,5-triaza-7-phosphaadamantane), PASO2 (2-thia-1,3,5-triaza-7-phosphaadamantane-2,2-dioxide),
PPh3, PCy3, P(CH2CH2CN)3, PPyPh2, or P(o-tol)3] were prepared and fully characterized by NMR spectroscopic methods
and X-ray crystallography. Depending on the nature of the phosphine,
a variety of different supramolecular structures, including dimers,
macrocycles, and coordination polymers, were observed in the solid
state. The in vitro antimicrobial activity in seven
different pathogens (Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Acinetobacter
baumannii, Candida albicans, and Cryptococcus neoformans var. grubii) as
well as toxicity in human cells was also examined. While all compounds
show some activity against the bacteria, they were especially active
against the fungus C. neoformans. The most active
and at the same time least toxic compound was found to be the water-soluble
complex [Ag(camphSO3)(PTA)2].
Copper(I) complexes containing acylthio-and selenoureato ligands can be accessed either by transmetallation from the corresponding silver compounds or by direct reaction of the acylthio/selenourea with a copper(I) precursor in the
A series of 2-arylamino-1,3-selenazoles was synthesized and their reactivity was studied. The 2-arylamino-1,3-selenazoles and their reaction products were characterized by various spectroscopic methods and X-ray diffraction. In addition, the antimicrobial activity of the 2-arylamino-1,3-selenazoles in a panel of seven bacteria and fungi was examined.
This article reviews the syntheses, structures, reactions and applications of metal complexes with both transition- and main-group-metals containing selenium compounds including acylselenoureas, selenosemicarbazones and selenocarbamate esters as ligands. Literature up...
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