Synthesis and biological evaluation of ternary silver compounds bearing N,N-chelating ligands and thiourea: X-ray structure of [{Ag(bpy) (mu-tu)}(2)](NO3)(2) (bpy=2,2 '-bipyridine; tu = thiourea)

authors	Segura, DF; Netto, AVG; Frem, RCG; Mauro, AE; da Silva, PB; Fernandes, JA; Paz, FAA; Dias, ALT; Silva, NC; de Almeida, ET; Marques, MJ; de Almeida, L; Alves, KF; Pavan, FR; de Souza, PC; de Barros, HB; Leite, CQF
nationality	International
journal	POLYHEDRON
author keywords	Silver(I); 1,10-Phenanthroline; Antileishmanial activity; Tuberculosis; Antifungal and antibacterial activity
keywords	ANTIMICROBIAL ACTIVITIES; CRYSTAL-STRUCTURES; IN-VITRO; SPECTROSCOPIC CHARACTERIZATION; TRIPHENYLPHOSPHINE LIGANDS; MYCOBACTERIUM-TUBERCULOSIS; ANTIMYCOBACTERIAL ACTIVITY; LEISHMANICIDAL ACTIVITY; SUBSTITUTED THIOUREAS; COORDINATION POLYMERS
abstract	Compounds [{Ag(phen)(mu-tu)}(2)](NO3)(2) (1), [{Ag(phen)(mu-tu)}(2)](CF3SO3)(2) (2), [{Ag(bpy)(mu-tu)}(2)](NO3)(2) (3) (where phen = 1,10-phenanthroline; bpy = 2,2'-bipyridine; tu = thiourea) were prepared by reacting the appropriate AgX salt (X- = NO3-, CF3SO3-), the N,N-chelating ligand (phen or bpy) and thiourea in a ca. 1:1:2 M ratio, respectively. The silver(l) complexes were characterized by elemental analysis, infrared (IR), H-1 and C-13 NMR spectroscopies, MS/ESI and conductivity measurements. The IR and NMR data were consistent with the presence of chelating phen (1 and 2) and bpy (3) ligands and demonstrated the S-coordination mode of thiourea. The crystal and molecular structures of compound [{Ag(bpy)(mu-tu)}(2)] (NO3)(2) (3) were determined by single-crystal X-ray diffraction. The complexes 1-3 were screened for their in vitro antimycobacterial (Mycobacterium tuberculosis), antileishmanial (Leishmania (L) amazonensis), antibacterial (Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa), antifungal activities (Candida albi cans, Candida tropicalis, Candida krusei). (C) 2014 Elsevier Ltd. All rights reserved.
publisher	PERGAMON-ELSEVIER SCIENCE LTD
issn	0277-5387
year published	2014
volume	79
beginning page	197
ending page	206
digital object identifier (doi)	10.1016/j.poly.2014.05.004
web of science category	Chemistry, Inorganic & Nuclear; Crystallography
subject category	Chemistry; Crystallography
unique article identifier	WOS:000340313800023