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2. Propane Dehydrogenation to Propylene on Ni and Ni-Sn Catalysts

   Jason P. Robbins, Lotanna Ezeonu (June 2022, North American Catalysis Society Meeting (NAM-27) Conference in New York, NY in 2022)

   Jason P. Robbins, Lotanna Ezeonu, Ziyu Tang, Xiaofang Yang, Bruce E. Koel, Simon G. Podkolzin, "Propane Dehydrogenation to Propylene on Ni and Ni-Sn Catalysts", North American Catalysis Society Meeting (NAM-27) Conference in New York, NY in 2022, Presentation number Wed-GRAM-1650, https://nam.confex.com/nam/2022/meetingapp.cgi/Paper/28324 

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3. New Heusler compounds in Ni-Mn-In and Ni-Mn-Sn alloys

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4. Strain glass state in Ni-rich Ni-Ti-Zr shape memory alloys

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5. Understanding the Early Stages of Nickel Sulfide Nanocluster Growth: Isolation of Ni ₃ , Ni ₄ , Ni ₅ , and Ni ₈ Intermediates

   https://doi.org/10.1002/smll.202003133  

   Touchton, Alexander J.; Wu, Guang; Hayton, Trevor W. (September 2020, Small)

   Abstract Addition of sub‐stoichiometric quantities of PEt₃and diphenyl disulfide to a solution of [Ni(1,5‐cod)₂] generates a mixture of [Ni₃(SPh)₄(PEt₃)₃] (1), unreacted [Ni(1,5‐cod)₂], and [(1,5‐cod)Ni(PEt₃)₂], according to¹H and³¹P{¹H} NMR spectroscopic monitoring of the in situ reaction mixture. On standing, complex1converts into [Ni₄(S)(Ph)(SPh)₃(PEt₃)₃] (2), via formal addition of a “Ni(0)” equivalent, coupled with a CS oxidative addition step, which simultaneously generates the Ni‐bound phenyl ligand and the μ₃‐sulfide ligand. Upon gentle heating, complex2converts into a mixture of [Ni₅(S)₂(SPh)₂(PEt₃)₅] (3) and [Ni₈(S)₅(PEt₃)₇] (4), via further addition of “Ni(0)” equivalents, in combination with a series of C–S oxidative addition and CC reductive elimination steps, which serve to convert thiophenolate ligands into sulfide ligands and biphenyl. The presence of1–4in the reaction mixture is confirmed by their independent syntheses and subsequent spectroscopic characterization. Overall, this work provides an unprecedented level of detail of the early stages of Ni nanocluster growth and highlights the fundamental reaction steps (i.e., metal atom addition, CS oxidative addition, and CC reductive elimination) that are required to grow an individual cluster. 

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