منابع مشابه
Silver complexation by metallacryptates.
We report the first complete characterization of metallycryptates encapsulating Ag(I) cations: carboxylato ligands derived from l-proline and l-alanine chelate and bridge six Cu(II) centres arranged in a slightly distorted octahedral fashion. Eight oxygen atoms of these ligands are disposed in square-prismatic geometry and coordinate the monovalent cation. Two alternative metallacryptates based...
متن کاملComplexation of polysaccharide and monosaccharide with thiolate boronic acid capped on silver nanoparticle.
Synthesized thiolate boronic acid was found to complex with both a polysaccharide (dextran) and a monosaccharide (glucose) with similar affinities but displayed more affinity with dextran than with glucose when capped as a ligand on silver nanoparticle. Coupling on multiple sites of dextran, the silver particles were aggregated. The aggregated particles displayed a decrease of absorbance at 397...
متن کاملSilver(I) complexation of (poly)aromatic ligands. Structural criteria for depth penetration into cis-stilbenoid cavities.
Silver(I) complexes with aromatic donors are thoroughly analyzed (with aid of the Cambridge Crystallographic Database) to identify the basic structural factors inherent to the bonding of an arene ligand. Most strikingly, the distance parameter d (which simply measures the normal separation of Ag from the mean aromatic plane) is singularly invariant at d = 2.41 +/- 0.05 A for all silver/arene co...
متن کاملSilver complexation and tandem mass spectrometry for differentiation of isomeric flavonoid diglycosides.
For detection and differentiation of isomeric flavonoids, electrospray ionization mass spectrometry is used to generate silver complexes of the type (Ag + flavonoid)+. Collisionally activated dissociation (CAD) of the resulting 1:1 silver/flavonoid complexes allows isomer differentiation of flavonoids. Eighteen flavonoid diglycosides constituting seven isomeric series are distinguishable from e...
متن کاملCrystal Structure and Silver Ion Complexation of a Novel Porphyrazine Substituted with Four Dithiacrown Ether Rings
The synthesis of magnesium porphyrazines substituted with sulfur-containing 15-crown5 and 18-crown-6 macrocycles is reported as well as the single crystal structure of the 18-crown-6 substituted porphyrazine; the larger crown ether compound is shown to form dimers with Ag+ ions, unlike the porphyrazine with the smaller crown ether rings. Supramolecular structures from phthalocyanine and porphyr...
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ژورنال
عنوان ژورنال: Dalton Transactions
سال: 2016
ISSN: 1477-9226,1477-9234
DOI: 10.1039/c5dt03749b