Influence of pH and type of counterion on the formation of bismuth(III) complexes with tropolonato and 5-methyltropolonato ligands: Synthesis, structure, spectroscopic characterization and calculation studies

Multiparameter High-Throughput and in Situ X-ray Diffraction Study of Six New Bismuth Sulfonatocarboxylates: Discovery, Phase Transformation, and Reaction Trends

“…Complexes containing Bi 3+ ions have been shown to exhibit various Bi–O coordination environments. A survey of bismuth carboxylates, − sulfonates, − and sulfonatocarboxylates − demonstrated that IBUs in the crystal structures range from mononuclear complexes to Bi–O clusters with up to 38 Bi ions to infinite Bi–O chains and even Bi–O layers. While the Bi–O clusters and dinuclear IBUs are mostly formed through reactions at room temperature or hydrolysis at moderate temperatures, respectively, the Bi–O chains were mostly obtained by hydrothermal synthesis.…”

Thallium(I) Tropolonates: Synthesis, Structure, Spectral Characteristics, and Antimicrobial Activity Compared to Lead(II) and Bismuth(III) Analogues

“…It was noteworthy that in contrast to 1 , the complex with 5-methyltropolone had a nonplanar chelate ring with the Tl atom lying about 0.38 Å out of plane formed by the remaining atoms. It is worth adding that only a few complexes of 5-methyltropolone with bismuth(III) ion have been structurally characterized until now [ 15 ].…”

“…The in vitro antimicrobial activity of thallium(I) tropolonate complexes and free tropolone ligands was compared with the selected lead(II) and bismuth(III) analogues characterized chemically earlier [ 14 , 15 , 17 ]. The activity of three thallium(I) (Tl(trop), Tl(5-metrop) and Tl(hino)), two lead(II) (Pb(hino) 2 and Pb(trop) 2 ), and three bismuth(III) ([Bi 2 (trop) 4 (NO 3 ) 2 ] n , Bi(trop) 3 and Bi(5-metrop) 2 (NO 3 )) complexes and their ligands against two groups of reference microorganisms were examined.…”

“…Over a decade ago, we demonstrated that formation of different polymeric or dimeric lead(II) tropolonates ([Pb 3 (trop) 4 (ClO 4 ) 2 ] n , [Pb 2 (trop) 2 (NO 3 ) 2 MeOH] n , [Pb(trop)(CF 3 SO 3 )(H 2 O)] n , and [Pb(trop) 2 ] 2 ) depended on pH and counterion presence [ 14 ]. A few years ago, we also performed a similar study on bismuth(III) tropolonates and 5-methyltropolonates (5-meHtrop): ([Bi 2 (trop) 4 (ClO 4 ) 2 ] n , [Bi 2 (trop) 4 (NO 3 ) 2 ] n , [Bi(trop) 2 (CF 3 SO 3 )] 2 , {[Bi 2 (5-metrop) 4 (ClO 4 )MeOH]ClO 4 } n , Bi(5-metrop) 2 (NO 3 ) and [Bi 2 (5-metrop) 4 (CF 3 SO 3 ) 2 ] n ) [ 15 ]. Recently, we revealed that in the [Pb(trop) 2 (Htrop)] and [Bi(trop) 2 (Htrop)(CF 3 SO 3 )] structures, the tropolone ligands act as both a neutral monodentate ligand (Htrop) and a bidentate chelating anion (trop − ) [ 16 ].…”

“…Moreover, after sustained efforts, we obtained thallium(I) triflate single crystals appropriate for the X-ray determination. Eventually, we examined the in vitro antimicrobial activity of new thallium(I) complexes and free tropolone ligands, and compared it with those of similar lead(II) and bismuth(III) complexes we studied previously [ 14 , 15 , 17 ]. Various metal complexes are still interesting due to their potential antibacterial properties [ 33 , 34 , 35 , 36 ].…”