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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Light-Driven C(sp 3 )–C(sp 3 ) Bond Functionalizations Enabled by the PCET Activation of Alcohol O–H Bonds
Methods that enable the selective functionalization of C–C bonds offer unique opportunities for the skeletal diversification of complex molecules and provide access to unique structures without the need for de novo synthesis. While considerable advances have been made in transition-metal-based approaches, much recent work has focused on alternative strategies for C–C bond cleavage enabled by transient free radicals. In particular, alkoxy radicals derived from simple alcohols are known to significantly destabilize adjacent C–C bonds, enabling spontaneous cleavage to eject a carbon-centered radical and afford carbonyl products via β-fragmentation. Here, while this reactivity has long been recognized, its applications in synthesis have been limited, in part, by the challenges associated with generating the key alkoxy radical intermediates.
Refine Intervention: Characterizing Disordered Yb[subscript 0.]5Co[subscript 3]Ge[subscript 3]
Abstract not provided
Thermal Expansion, Response to Pressure, and Reversible PressureInduced Amorphization in Anion Excess ReO[subscript 3]-Type Cubic LuZrF[subscript 7]
Abstract not provided
Ion Migration Mechanisms in the Sodium Sulfide Solid ElectrolyteNa(3-x)Sb(1-x)W(x)S(4)
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Band Anisotropy Generates Axis-Dependent Conduction Polarity of Mg 3 Sb 2 and Mg 3 Bi 2
Not provided.
Expanding the Rich Crystal Chemistry of Ruthenium(V) Oxides via the Discovery of BaRu[subscript 2]O[subscript 6], Ba[subscript 5]Ru[subscript 4]O[subscript 15], Ba[subscript 2]Ru[subscript 3]O[subscript 10], and Sr[subscript 2]Ru[subscript 3]O[subscript 9](OH) by pH-Controlled Hydrothermal Synthesis
Abstract not provided
Closing the Cyan Gap Toward Full-Spectrum LED Lighting with NaMgBO[subscript 3]:Ce[superscript 3+]
Abstract not provided