New Microbe Killers : Self-Assembled Silver(I) Coordination Polymers Driven by a Cagelike Aminophosphine
Jaros, W. S., Haukka, M., Florek, M., Guedes da Silva, F. C. M., Pombeiro, J. L. A., Kirillov, M. A., & Smoleński, P. (2019). New Microbe Killers : Self-Assembled Silver(I) Coordination Polymers Driven by a Cagelike Aminophosphine. Materials, 12(20), Article 3353. https://doi.org/10.3390/ma12203353
© 2019 The Authors
New Ag(I) coordination polymers, formulated as [Ag(μ-PTAH)(NO3)2]n (1) and [Ag(μ-PTA)(NO2)]n (2), were self-assembled as light- and air-stable microcrystalline solids and fully characterized by NMR and IR spectroscopy, electrospray ionization mass spectrometry (ESI-MS(±), elemental analysis, powder (PXRD) and single-crystal X-ray diffraction. Their crystal structures reveal resembling 1D metal-ligand chains that are driven by the 1,3,5-triaza-7-phospaadamantane (PTA) linkers and supported by terminal nitrate or nitrite ligands; these chains were classified within a 2C1 topological type. Additionally, the structure of 1 features a 1D!2D network extension through intermolecular hydrogen bonds, forming a two-dimensional hydrogen-bonded network with fes topology. Furthermore, both products 1 and 2 exhibit remarkable antimicrobial activity against different human pathogen bacteria (S. aureus, E. coli, and P. aeruginosa) and yeast (C. albicans), which is significantly superior to the activity of silver(I) nitrate as a reference topical antimicrobial. ...
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Additional information about fundingThis work was founded by the Foundation for Science and Technology (FCT) and Portugal 2020 (LISBOA-01-0145-FEDER-029697, UID/QUI/00100/2019, SFRH/BD/77024/2011 and REM2013), as well as by the NCN program (Grant No. 2012/07/B/ST5/00885), Poland. The project was partially supported by the Wroclaw CentreofBiotechnology,theLeadingNationalResearchCentre(KNOW)foryears2014–2018. AMKacknowledges theRUDNUniversity(thepublicationhasbeenpreparedwiththesupportoftheRUDNUniversityProgram5-100). ...
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