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1. Phase-Controlled Deposition of Ru on Pd Nanocrystal Templates: Effects of Particle Shape and Size

   https://doi.org/10.1021/acs.jpcc.2c08825  

   Janssen, Annemieke ; Nguyen, Quynh N. ; Lyu, Zhiheng ; Pawlik, Veronica ; Wang, Chenxiao ; Xia, Younan ( January 2023 , The Journal of Physical Chemistry C)
2. Light-Mediated Growth of Noble Metal Nanostructures (Au, Ag, Cu, Pt, Pd, Ru, Ir, Rh) From Micro- and Nanoscale ZnO Tetrapodal Backbones

   https://doi.org/10.3389/fchem.2018.00411  

   Demille, Trevor B. ; Hughes, Robert A. ; Preston, Arin S. ; Adelung, Rainer ; Mishra, Yogendra Kumar ; Neretina, Svetlana ( September 2018 , Frontiers in Chemistry)
3. “Bottled” spiro-doubly aromatic trinuclear [Pd 2 Ru] + complexes

   https://doi.org/10.1039/D0SC04469E  

   Kulichenko, Maksim ; Fedik, Nikita ; Monfredini, Anna ; Muñoz-Castro, Alvaro ; Balestri, Davide ; Boldyrev, Alexander I. ; Maestri, Giovanni ( January 2021 , Chemical Science)

   null (Ed.)

   Following an ongoing interest in the study of transition metal complexes with exotic bonding networks, we report herein the synthesis of a family of heterobimetallic triangular clusters involving Ru and Pd atoms. These are the first examples of trinuclear complexes combining these nuclei. Structural and bonding analyses revealed both analogies and unexpected differences for these [Pd 2 Ru] + complexes compared to their parent [Pd 3 ] + peers. Noticeably, participation of the Ru atom in the π-aromaticity of the coordinated benzene ring makes the synthesized compound the second reported example of ‘bottled’ double aromaticity. This can also be referred to as spiroaromaticity due to the participation of Ru in two aromatic systems at a time. Moreover, the [Pd 2 Ru] + kernel exhibits unprecedented orbital overlap of Ru d z2 AO and two Pd d xy or d x2−y2 AOs. The present findings reveal the possibility of synthesizing stable clusters with delocalized metal–metal bonding from the combination of non-adjacent elements of the periodic table which has not been reported previously. 

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4. The Prototypical Transition Metal Carbenes, (CO) 5 Cr=CH 2 , (CO) 4 Fe=CH 2 , (CO) 3 Ni=CH 2 , (CO) 5 Mo=CH 2 , (CO) 4 Ru=CH 2 , (CO) 3 Pd=CH 2 , (CO) 5 W=CH 2 , (CO) 4 Os=CH 2 , and (CO) 3 Pt=CH 2 : Challenge to Experiment

   https://doi.org/10.1021/acs.jpca.8b05394  

   Weidman, Jared D. ; Estep, Marissa L. ; Schaefer, Henry F. ( July 2018 , The Journal of Physical Chemistry A)
5. Selective hydrogenation of 4-nitrostyrene to 4-nitroethylbenzene catalyzed by Pd@Ru core–shell nanocubes

   https://doi.org/https://doi.org/10.1007/s12598- 021-01868-0  

   Fang, Jing-Jing ; Liu, Qi-Ming ; Kang, Xiong-Wu ; Chen, Shao-Wei ( January 2022 , Rare metals)

   It is a challenge to selectively hydrogenate 4-nitrostyrene to 4-nitroethylbenzene, due to the similar energy barrier of hydrogenation of the nitro and vinyl groups. Herein, we demonstrate that such selective hydrogenation can be achieved by Pd@Ru core–shell nanocubes that are prepared by epitaxial growth of a face-centered cubic Ru shell on Pd cubes. The core–shell structure of Pd@Ru nanocubes is confirmed by transmission electron microscopy, X-ray diffraction spectroscopy, and elemental mapping measurements. It is found that the electronic structure and hence the catalytic activity of the Pd@Ru nanocubes can be readily modulated by the Ru shell thickness. This is manifested in electrochemical CO stripping measurements where a decrease of CO adsorption energy is observed on Pd@Ru nanocubes with the increase of the Ru shell thickness. Results from this study suggest that deliberate structural engineering can be exploited to prepare bimetallic core–shell nanostructures for highly active and selective hydrogenation of organic molecules with multifunctional moieties. 

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