%0 Journal Article %T Eight-Electron Silver and Mixed Gold/Silver Nanoclusters Stabilized by Selenium Donor Ligands %+ National Dong Hwa University (NDHU) %+ Institut des Sciences Chimiques de Rennes (ISCR) %+ Academica Sinica %A Chakrahari, Kiran Kumarvarma %A Kahlal, Samia %A Liu, Yu-Chiao %A Chiang, Ming-Hsi %A Saillard, Jean-Yves %A Liu, C. W. %A Chang, Wan-Ting %A Lee, Po-Yi %A Liao, Jian-Hong %Z Ministry of Science and Technology in Taiwan [MOST 103-2113-M-259-003] %Z GENCI-CINES French national computer center [x2016087367, A0010807367] %Z GENCI-IDRISS French national computer center [x2016087367, A0010807367] %< avec comité de lecture %@ 1433-7851 %J Angewandte Chemie International Edition %I Wiley-VCH Verlag %V 56 %N 34 %P 10178--10182 %8 2017 %D 2017 %R 10.1002/anie.201704800 %M 28544757 %K galvanic replacement %K ligand exchange %K nanoclusters %K silver %K x-ray diffraction %Z Chemical SciencesJournal articles %X The first atomically and structurally precise silver-nanoclusters stabilized by Se-donor ligands, [Ag {Se P(O Pr) } ] (3) and [Ag {Se P(OEt) } ] (4), were isolated by ligand replacement reaction of [Ag {S P(O Pr) } ] (1) and [Ag {S P(O Pr) } ] (2), respectively. Furthermore, doping reactions of 4 with Au(PPh )Cl resulted in the formation of [AuAg {Se P(OEt) } ] (5). Structures of 3, 4, and 5 were determined by single-crystal X-ray diffraction. The anatomy of cluster 3 with an Ag core having C symmetry is very similar to that of its dithiophosphate analogue 1. Clusters 4 and 5 exhibit an Ag and Au@Ag core of O symmetry composed of eight silver capping atoms in a cubic arrangement and encapsulating an Ag and Au@Ag centered icosahedron, respectively. Both ligand exchange and heteroatom doping result in significant changes in optical and emissive properties for chalcogen-passivated silver nanoparticles, which have been theoretically confirmed as 8-electron superatoms. %G English %L hal-01578537 %U https://univ-rennes.hal.science/hal-01578537 %~ UNIV-RENNES1 %~ CNRS %~ INSA-RENNES %~ ENSC-RENNES %~ ISCR %~ ISCR-CTI %~ STATS-UR1 %~ UR1-SPM %~ INC-CNRS %~ UR1-UFR-SPM %~ UR1-HAL %~ UR1-SDLM %~ TEST-UNIV-RENNES %~ TEST-UR-CSS %~ UNIV-RENNES %~ INSA-GROUPE %~ CNANO-R %~ TEST-HALCNRS %~ UR1-MMS %~ TEST2-HALCNRS