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Bhaskar G, Behera RK, Gvozdetskyi V, Carnahan SL, Ribeiro RA, Oftedahl P, Ward C, Canfield PC, Rossini AJ, Huang W, Zaikina JV. Breaking New Ground: MBene Route toward Selective Vinyl Double Bond Hydrogenation in Nitroarenes. J Am Chem Soc 2023; 145:27459-27470. [PMID: 38059480 DOI: 10.1021/jacs.3c08642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
Doping, or incremental substitution of one element for another, is an effective way to tailor a compound's structure as well as its physical and chemical properties. Herein, we replaced up to 30% of Ni with Co in members of the family of layered LiNiB compounds, stabilizing the high-temperature polymorph of LiNiB while the room-temperature polymorph does not form. By studying this layered boride with in situ high-temperature powder diffraction, we obtained a distorted variant of LiNi0.7Co0.3B featuring a perfect interlayer placement of [Ni0.7Co0.3B] layers on top of each other─a structural motif not seen before in other borides. Because of the Co doping, LiNi0.7Co0.3B can undergo a nearly complete topochemical Li deintercalation under ambient conditions, resulting in a metastable boride with the formula Li0.04Ni0.7Co0.3B. Heating of Li0.04Ni0.7Co0.3B in anaerobic conditions led to yet another metastable boride, Li0.01Ni0.7Co0.3B, with a CoB-type crystal structure that cannot be obtained by simple annealing of Ni, Co, and B. No significant alterations of magnetic properties were detected upon Co-doping in the temperature-independent paramagnet LiNi0.7Co0.3B or its Li-deintercalated counterparts. Finally, Li0.01Ni0.7Co0.3B stands out as an exceptional catalyst for the selective hydrogenation of the vinyl C═C bond in 3-nitrostyrene, even in the presence of other competing functional groups. This research showcases an innovative approach to heterogeneous catalyst design by meticulously synthesizing metastable compounds.
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Affiliation(s)
- Gourab Bhaskar
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Ranjan K Behera
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | | | - Scott L Carnahan
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- Ames Laboratory, US DOE, Iowa State University, Ames, Iowa 50011, United States
- Department of Chemistry, Saint Mary's University of Minnesota, Winona, Minnesota 55987, United States
| | - Raquel A Ribeiro
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, United States
| | - Paul Oftedahl
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Charles Ward
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Paul C Canfield
- Ames Laboratory, US DOE, Iowa State University, Ames, Iowa 50011, United States
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, United States
| | - Aaron J Rossini
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- Ames Laboratory, US DOE, Iowa State University, Ames, Iowa 50011, United States
| | - Wenyu Huang
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- Ames Laboratory, US DOE, Iowa State University, Ames, Iowa 50011, United States
| | - Julia V Zaikina
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
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