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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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Bis(N-xylyl-imino)phenyl “NCN” iridium pincer complexes. Thermodynamics of ligand binding and C C bond cleavage
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Formation and stability of Zr(IV), Hf(IV), Th(IV), and U(IV) bis(amide) dichloride complexes using bulky amide ligands: Insights into metal-arene interactions and hapticity
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Recent progress in aging studies of a eutectic mixture of bis(2,2-dinitropropyl) acetal and formal nitroplasticizer
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Ordered LiNi[subscript 0.5]Mn[subscript 1.5]O[subscript 4] Cathode in Bis(fluorosulfonyl)imide-Based
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Lanthanide Complexes of Bis(tetrazolato)amine: A Route to Lanthanide Nitride Foams
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Synthesis and Reduction of Heteroleptic Bis(cyclopentadienyl) Uranium(III) Complexes
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Product Variation in Reactions of MI 3 (thf) 4 with Bis(Mesitoyl)Phosphide Across the M = U, Np, Pu Series
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Catalytic Ambient Temperature Dinitrogen Conversion to a Bis(silyl)amine by Mononuclear Group 4 Aryloxide Complexes
The homogeneous conversion of ambient dinitrogen to amine products via the N2 reduction reaction (N2RR) remains a prized yet challenging feat for d-block complexes and is scarcely reported for f-block complexes. New, mononuclear TiIV and ZrIV aryloxide complexes Ti(DP)2 (1Ti), Zr(DP)2 (1Zr), and DP = [2-(OC6H2-2-tBu,4-Me)2CHPh] produce up to 51 eq. and up to 7.0 eq. of HN(SiMe3)2 per Ti/Zr, from N2, K0, weak acid, and chlorotrimethylsilane. Complex 1Ti exhibits more than double the activity toward N2-silylation of any previously reported Ti N2RR catalyst and can also catalyze the formation of up to 19 eq. of NH3, a new feature in early metal N2RR chemistry. The mononuclear 1Zr is the most active Zr catalyst for N2-silylation to date. [KSm(DP)2(THF)3] (1Sm), the mononuclear analogue of our previously reported dinuclear A-Sm complex, displays only stoichiometric N2-silylation due to its vulnerability to deleterious side reactions. DFT calculations confirm the catalysis can proceed via a monomeric Ti complex with a terminally bound, activated N2, agreeing with experimental 1H DOSY NMR measurements; the N-H bond is formed first, directing the catalyst selectivity. The isolable reduction product [K3(THF)Ti(DP)(DP-)(N2)] is also an active catalyst, and an intermediate in the calculated cycle.
Structural Analysis of Potent Hybrid HIV-1 Protease Inhibitors Containing Bis-tetrahydrofuran in a P
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