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Autor
Altoe, Virginia 1 Cheung, Tsz Ching 1 Cigler, Petr 1 Doriese, William B 1 Irwin, Kent 1 Jeanpierre, Grace 1 Lee, Sang-Jun 1 Lopez-Rosas, Jorge A 1 Melendrez, Cynthia 1 Muhammad, Halim 1 Nordlund, Dennis 1 O'Neil, Galen C 1 Raabova, Helena 1 Sainio, Sami 1 Sandoval, Perla Jasmine 1 Stokes, Camron X 1 Supreme, Tyanna 1 Swetz, Daniel S 1 Titus, Charles James 1 Tran, Polo 1
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Pracoviště
Department of Chemistry San José State Unive... 1 Department of Physics Stanford University Pa... 1 Institute of Organic Chemistry and Biochemis... 1 Microelectronics Research Unit Faculty of In... 1 Quantum Electromagnetics Division National I... 1 Stanford Synchrotron Radiation Lightsource S... 1 The Molecular Foundry Lawrence Berkeley Nati... 1
- Publikační typ
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- Země
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- Grant - země
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PubMed
35084184
PubMed Central
PMC10655229
DOI
10.1021/acs.jpclett.1c04090
Knihovny.cz E-zdroje
Bromination of high-pressure, high-temperature (HPHT) nanodiamond (ND) surfaces has not been explored and can open new avenues for increased chemical reactivity and diamond lattice covalent bond formation. The large bond dissociation energy of the diamond lattice-oxygen bond is a challenge that prevents new bonds from forming, and most researchers simply use oxygen-terminated NDs (alcohols and acids) as reactive species. In this work, we transformed a tertiary-alcohol-rich ND surface to an amine surface with ∼50% surface coverage and was limited by the initial rate of bromination. We observed that alkyl bromide moieties are highly labile on HPHT NDs and are metastable as previously found using density functional theory. The strong leaving group properties of the alkyl bromide intermediate were found to form diamond-nitrogen bonds at room temperature and without catalysts. This robust pathway to activate a chemically inert ND surface broadens the modalities for surface termination, and the unique surface properties of brominated and aminated NDs are impactful to researchers for chemically tuning diamond for quantum sensing or biolabeling applications.
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Po ukončení testovacího provozu bude odkaz přesměrován adresu produkční verze portálu Medvik.