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Discovery and Supramolecular Interactions of Neutral Palladium-Oxo Clusters Pd16 and Pd24.

ABSTRACT: We report on the synthesis, structure, and physicochemical characterization of the first three examples of neutral palladium-oxo clusters (POCs). The 16-palladium(II)-oxo cluster [Pd16 O24 (OH)8 ((CH3 )2 As)8 ] (Pd16 ) comprises a cyclic palladium-oxo unit capped by eight dimethylarsinate groups. The chloro-derivative [Pd16 Na2 O26 (OH)3 ?Cl3 ?((CH3 )2 ?As)8 ] (Pd16 Cl) was also prepared, which forms a highly stable 3D supramolecular lattice via strong intermolecular interactions. The 24-palladium(II)-oxo cluster [Pd24 O44 (OH)8 ((CH3 )2 As)16 ] (Pd24 ) can be considered as a bicapped derivative of Pd16 with a tetra-palladium-oxo unit grafted on either side. The three compounds were fully characterized 1)?in the solid state by single-crystal and powder XRD, IR, TGA, and solid-state 1 H and 13 C?NMR spectroscopy, 2)?in solution by 1 H, 13 C?NMR and 1 H DOSY spectroscopic methods, and 3)?in the gas phase by electrospray ionization mass spectrometry (ESI-MS).

SUBMITTER: Bhattacharya S 

PROVIDER: S-EPMC7898824 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature

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Discovery and Supramolecular Interactions of Neutral Palladium-Oxo Clusters Pd<sub>16</sub> and Pd<sub>24</sub>.

Bhattacharya Saurav S   Basu Uttara U   Haouas Mohamed M   Su Pei P   Espenship Michael Forrester MF   Wang Fei F   Solé-Daura Albert A   Taffa Dereje H DH   Wark Michael M   Poblet Josep M JM   Laskin Julia J   Cadot Emmanuel E   Kortz Ulrich U  

Angewandte Chemie (International ed. in English) 20201215 7

We report on the synthesis, structure, and physicochemical characterization of the first three examples of neutral palladium-oxo clusters (POCs). The 16-palladium(II)-oxo cluster [Pd<sub>16</sub> O<sub>24</sub> (OH)<sub>8</sub> ((CH<sub>3</sub> )<sub>2</sub> As)<sub>8</sub> ] (Pd<sub>16</sub> ) comprises a cyclic palladium-oxo unit capped by eight dimethylarsinate groups. The chloro-derivative [Pd<sub>16</sub> Na<sub>2</sub> O<sub>26</sub> (OH)<sub>3</sub>  Cl<sub>3</sub>  ((CH<sub>3</sub> )<sub  ...[more]

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