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Journal articles
Synthesis of Bimetallic Copper-Rich Nanoclusters Encapsulating a Linear Palladium Dihydride Unit
Abstract : The structurally precise Cu-rich hydride nanoclusters [PdCu H (dtc/dtp) (C≡CPh) ] (dtc: di-butyldithiocarbamate (1); dtp: di-isopropyl dithiophosphate (2)) were synthesized from the reaction of polyhydrido copper clusters [Cu H (S CN Bu ) ] or [Cu H {S P(O Pr) } ] with phenyl acetylene in the presence of Pd(PPh ) Cl . Their structures and compositions were determined by single-crystal X-ray diffraction and the results supported by ESI-mass spectrometry. Hydride positions in 1 were confirmed by single-crystal neutron diffraction. Each hydride is connected to one Pd and four Cu atoms in slightly distorted trigonalbipyramidal geometry. The anatomies of clusters 1 and 2 are very similar and DFT calculations allow rationalizing the interactions between the encapsulated [PdH ] unit and its Cu bicapped icosahedral cage. As a result, Pd has the highest coordination number (14) so far recorded.
Cited literature [36 references]
https://hal-univ-rennes1.archives-ouvertes.fr/hal-02087809
Contributor : Laurent Jonchère <>
Submitted on : Tuesday, April 16, 2019 - 3:33:49 PM
Last modification on : Friday, July 10, 2020 - 4:21:49 PM
Contributor : Laurent Jonchère <>
Submitted on : Tuesday, April 16, 2019 - 3:33:49 PM
Last modification on : Friday, July 10, 2020 - 4:21:49 PM
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