Search results for "Nano-molecules"

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Ag44(SeR)30: A Hollow Cage Silver Cluster with Selenolate Protection.

2015

Selenolate protected, stable and atomically precise, hollow silver cluster was synthesized using solid state as well as solution state routes. The optical absorption spectrum shows multiple and sharp features similar to the thiolated Ag44 cluster, Ag44(SR)30 whose experimental structure was reported recently. High-resolution electrospray ionization mass spectrometry (HRESI MS) shows well-defined molecular ion features with two, three, and four ions with isotopic resolution, due to Ag44(SePh) 30. Additional characterization with diverse tools confirmed the composition. The closed-shell 18 electron superatom electronic structure, analogous to Ag44(SR)30 stabilizes the dodecahedral cage with a…

Nano-moleculesElectronic structureAbsorption spectroscopyMass spectrometryChemistryElectrospray ionizationPolyatomic ionSuperatomAnalytical chemistryElectronic structureTime-dependent density functional theoryselenolateMALDI-MSSuperatomsCrystallographyTDDFTOptical materialsCluster (physics)Silver clusterGeneral Materials ScienceDensity functional theoryPhysical and Theoretical ChemistryESI MSThe journal of physical chemistry letters

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