Effect of increasing ligand length on the structure of silver complexes

Gschwind, Fabienne; Fromm, Katharina M.

doi:10.1039/c2ce25110h

Cited by 12 publications

(10 citation statements)

References 28 publications

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“…In order to further elucidate the molecular mechanism of action, we have started to investigate the interaction of silver ions with amino acids and peptides . Furthermore, we are developing new silver‐based compounds with other ligands in order to enlarge our pool of compounds to be tested as antimicrobial agents …”

Section: Discussionmentioning

confidence: 99%

Silver coordination compounds with antimicrobial properties

Fromm

2013

Applied Organom Chemis

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Silver and its compounds have long been known to possess antimicrobial properties. We report here on our observations in this field of research, namely on silver coordination compounds, and in particular polymers, which can be used in the medical field. An overview of the structural diversity of coordination compounds with a particular class of organic ligands is given, together with their properties, with a special focus on antimicrobial activity, solubility and light stability.

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Section: Discussionmentioning

confidence: 99%

Silver coordination compounds with antimicrobial properties

Fromm

2013

Applied Organom Chemis

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“…found: C, 22 44 , L 33 , L 23 , L 24 , 2, 3 and 4 which were located from the Fourier synthesis maps. NaOH (126 mg, 3.16 mmol) was added slowly to the solution with vigorous stirring at 0 uC.…”

Section: 3-dipyridyl Ketone Oxime L 23mentioning

confidence: 92%

“…5 Judicious choice of organic-linker ligands and transition metal ion nodes has allowed the engineering of a wide variety of coordination networks in recent years. However, the balance between the formations of different coordination networks is often subtle, such that metal-to-ligand ratio, [11][12][13] anion-based interactions 11,12,[14][15][16][17][18][19][20][21][22][23][24] and solvent effects 11,12,14,16,17,19,20,22 can all have an influence on the final structural outcomes. However, the balance between the formations of different coordination networks is often subtle, such that metal-to-ligand ratio, [11][12][13] anion-based interactions 11,12,[14][15][16][17][18][19][20][21][22][23][24] and solvent effects 11,12,14,16,17,…”

Section: Introductionmentioning

confidence: 99%

Triflate anion and ligand influences in silver(i) coordination polymers of four isomeric dipyridyl ketone oximes

et al. 2013

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The synthesis and X-ray characterisation of four isomeric dipyridyl ketone oxime ligands, 4,49-dipyridyl ketone oxime, L 44 , 3,39-dipyridyl ketone oxime, L 33 , 2,4-dipyridyl ketone oxime, L 24 and 2,3-dipyridyl ketone oxime, L 23 is described. X-ray structural characterisation of the precursor ketones 3,39-dipyridyl ketone, L1, and 2,4-dipyridyl ketone, L2, is also reported for comparison. Four AgCF 3 SO 3 complexes of the dipyridyl ketone oxime ligands were prepared and structurally characterised, [Ag(L 44 ) 2 ](CF 3 SO 3 ), 1, ' , 3, and [Ag 2 L 23 (CF 3 SO 3 ) 2 ] ' , 4. The structural role of the CF 3 SO 3 2 anion in the formation of Ag(I) coordination polymer networks, together with the effect of the varying pyridyl substitution patterns of L 44 , L 33 , L 24 and L 23 was investigated. In 1 the CF 3 SO 3 2 anion was unbound and disordered. It was encapsulated in the channels of a honeycomb 3D H-bonded structure. In 2 the CF 3 SO 3 2 anion remained unbound, being encapsulated within the centre of a helical polymer chain. In 3 the CF 3 SO 3 2 anion was weakly bound to the Ag(I) ion and as such decorated the side of a bowed 1-D chain. The two different CF 3 SO 3 2 anions in 4 adopted a range of binding modes from monodentate, bismonodentate to tris-monodentate with the Ag(I) ions and gave rise to the formation of an unusual CF 3 SO 3 2 bridged 2-D network.

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“…The longer ligands become more flexible and water soluble [25] and feature not only chain compounds [11], but also metallacyclic species. The effect of the ligand length on the coordination modes towards silver ions has also been studied [14,26].…”

Section: Applications and Outlooksmentioning

confidence: 99%

Silver coordination polymers with isonicotinic acid derived short polyethylene glycol – Synthesis, structures, anion effect and solution behavior

Fromm

Sague

Robin

2013

Inorganica Chimica Acta

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Silver coordination compounds and one-dimensional polymers have been studied, using a linear, flexible N-donor ligand. The solid state structures are well known and show panoply of different structures including a large number of polymorphism, pseudo-polymorphism and isomers. We have studied these structures under the influence of anions, solvents and crystallization conditions, studying also some solution effects. We here present an overview with highlights of some case studies of the synthesis, structures, anion and solvent effects as well as solution behavior during formation of silver coordination polymers. Finally, we will give an outlook on the potential applications of these materials.⇑ Corresponding author.

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Effect of increasing ligand length on the structure of silver complexes

Cited by 12 publications

References 28 publications

Silver coordination compounds with antimicrobial properties

Silver coordination compounds with antimicrobial properties

Triflate anion and ligand influences in silver(i) coordination polymers of four isomeric dipyridyl ketone oximes

Silver coordination polymers with isonicotinic acid derived short polyethylene glycol – Synthesis, structures, anion effect and solution behavior

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