Synthesis and structural characterization of Keggin polyoxometalate compounds with argininium(2+) cations

Santos, Filipe M.; Brandão, Paula; Félix, Vı́tor; Cavaleiro, Ana M. V.; Gomes, E. de Matos; Belsley, M.

doi:10.1016/j.molstruc.2009.11.002

Cited by 14 publications

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References 61 publications

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“…The complexes between phosphometalate anions and amino acid arginine feature not only different structure, but also considerably different composition. In (H 2 Arg) 3 [PMo 12 O 40 ] 2 (H 2 O) 12 ( 5 ), featuring a structure very close to earlier reported (H 2 Arg) 3 [PMo 12 O 40 ] 2 (H 2 O) 15 (EtOH), obtained from 1 m HCl solution with subsequent addition of ethanol, the negative charge of the cation is fully compensated (neutralized) by the doubly charged arginine cations, protonated on both the alpha amino group and in the guanidine function. The structure is centrosymmetric triclinic with an asymmetric unit involving one phosphomolybdate anion and one‐and‐a‐half (one fully occupied and one disordered half‐populated) arginine cation (see Figure top).…”

Section: Resultsmentioning

confidence: 99%

Complexes of Keggin POMs [PM₁₂O₄₀]³^– (M = Mo, W) with GlyGly Peptide and Arginine – Crystal Structures and Solution Reactivity

et al. 2019

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Metal oxide nanoparticles are potentially attractive tools for biomedical applications such as bioimaging and drug delivery. This urges experimental studies of their surface interaction with biomolecules, in the first hand, amino acids and proteins. Especially intriguing is the effect of not only shape and size but of chemical nature of the particles on the nature of bonds emerging between them and biomolecules. In present study we isolated, structurally characterized and compared complexes with model molecules glycylglycine and arginine of spherically shaped Keggin POMs [PM 12 O 40 ] 3-, M = Mo, W as models for individual nanoparticles ca. 1 nm in size. Surpris- [a]

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Section: Resultsmentioning

confidence: 99%

Complexes of Keggin POMs [PM₁₂O₄₀]³^– (M = Mo, W) with GlyGly Peptide and Arginine – Crystal Structures and Solution Reactivity

et al. 2019

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Wet and Functional Adhesives from One‐Step Aqueous Self‐Assembly of Natural Amino Acids and Polyoxometalates

et al. 2017

Angewandte Chemie

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Sessile organisms have undergone long‐term evolution to develop the unique ability by positioning themselves on wet solid surface through secreting adhesive proteins. The present study reveals that natural amino acid monomers can also exhibit similar adhesion capacity. This kind of biomimetic adhesives were created by the one‐step aqueous assembly of basic amino acids with assistance of anionic polyoxometalates. The polyoxometalates not only serve as multivalent scaffold to initiate the supramolecular cross‐linking of amino acid molecules, but also function as a redox component, bestowing the wet adhesives with electrochromic features.

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Wet and Functional Adhesives from One‐Step Aqueous Self‐Assembly of Natural Amino Acids and Polyoxometalates

et al. 2017

Angew Chem Int Ed

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Sessile organisms have undergone long-term evolution to develop the unique ability by positioning themselves on wet solid surface through secreting adhesive proteins. The present study reveals that natural amino acid monomers can also exhibit similar adhesion capacity. This kind of biomimetic adhesives were created by the one-step aqueous assembly of basic amino acids with assistance of anionic polyoxometalates. The polyoxometalates not only serve as multivalent scaffold to initiate the supramolecular cross-linking of amino acid molecules, but also function as a redox component, bestowing the wet adhesives with electrochromic features.

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Synthesis and structural characterization of Keggin polyoxometalate compounds with argininium(2+) cations

Cited by 14 publications

References 61 publications

Complexes of Keggin POMs [PM₁₂O₄₀]³^– (M = Mo, W) with GlyGly Peptide and Arginine – Crystal Structures and Solution Reactivity

Complexes of Keggin POMs [PM₁₂O₄₀]³^– (M = Mo, W) with GlyGly Peptide and Arginine – Crystal Structures and Solution Reactivity

Wet and Functional Adhesives from One‐Step Aqueous Self‐Assembly of Natural Amino Acids and Polyoxometalates

Wet and Functional Adhesives from One‐Step Aqueous Self‐Assembly of Natural Amino Acids and Polyoxometalates

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Synthesis and structural characterization of Keggin polyoxometalate compounds with argininium(2+) cations

Cited by 14 publications

References 61 publications

Complexes of Keggin POMs [PM12O40]3– (M = Mo, W) with GlyGly Peptide and Arginine – Crystal Structures and Solution Reactivity

Complexes of Keggin POMs [PM12O40]3– (M = Mo, W) with GlyGly Peptide and Arginine – Crystal Structures and Solution Reactivity

Wet and Functional Adhesives from One‐Step Aqueous Self‐Assembly of Natural Amino Acids and Polyoxometalates

Wet and Functional Adhesives from One‐Step Aqueous Self‐Assembly of Natural Amino Acids and Polyoxometalates

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Product

Resources

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Complexes of Keggin POMs [PM₁₂O₄₀]³^– (M = Mo, W) with GlyGly Peptide and Arginine – Crystal Structures and Solution Reactivity

Complexes of Keggin POMs [PM₁₂O₄₀]³^– (M = Mo, W) with GlyGly Peptide and Arginine – Crystal Structures and Solution Reactivity