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Photoredox-HAT Catalysis for Primary Amine α-C-H Alkylation: Mechanistic Insight with Transient Absorption Spectroscopy.
Sneha M, Thornton GL, Lewis-Borrell L, Ryder ASH, Espley SG, Clark IP, Cresswell AJ, Grayson MN, Orr-Ewing AJ. Sneha M, et al. ACS Catal. 2023 May 30;13(12):8004-8013. doi: 10.1021/acscatal.3c01474. eCollection 2023 Jun 16. ACS Catal. 2023. PMID: 37342833 Free PMC article.
Instead, both time-resolved infrared and UV-visible spectroscopic measurements implicate rapid association of N(3)() with N(3)(-) (a favorable process in acetonitrile) to form the N(6)(-) radical anion. Electronic structure calculations indicate that N …
Instead, both time-resolved infrared and UV-visible spectroscopic measurements implicate rapid association of N(3)() with N(3) …
Soil type influence nutrient availability, microbial metabolic diversity, eubacterial and diazotroph abundance in chickpea rhizosphere.
Sneha GR, Swarnalakshmi K, Sharma M, Reddy K, Bhoumik A, Suman A, Kannepalli A. Sneha GR, et al. World J Microbiol Biotechnol. 2021 Sep 1;37(10):167. doi: 10.1007/s11274-021-03132-0. World J Microbiol Biotechnol. 2021. PMID: 34468874
The rhizosphere microbial activities (urease, dehydrogenase, alkaline phosphatase and beta-glucosidase) were also assessed as an indicator of microbial metabolic diversity. Principal component analysis and K-means non-hierarchical cluster mapping grouped soils into three c …
The rhizosphere microbial activities (urease, dehydrogenase, alkaline phosphatase and beta-glucosidase) were also assessed as an indicator o …
Structure-Dependent Electron Transfer Rates for Dihydrophenazine, Phenoxazine, and Phenothiazine Photoredox Catalysts Employed in Atom Transfer Radical Polymerization.
Sneha M, Bhattacherjee A, Lewis-Borrell L, Clark IP, Orr-Ewing AJ. Sneha M, et al. J Phys Chem B. 2021 Jul 22;125(28):7840-7854. doi: 10.1021/acs.jpcb.1c05069. Epub 2021 Jul 8. J Phys Chem B. 2021. PMID: 34237215
Transient electronic and vibrational absorption spectroscopies over subpicosecond to nanosecond and microsecond time intervals, respectively, track spectroscopic signatures of both the reactants and products of photoinduced electron transfer in N,N-dimethylformamide …
Transient electronic and vibrational absorption spectroscopies over subpicosecond to nanosecond and microsecond time intervals, respectively …
Singlet and Triplet Contributions to the Excited-State Activities of Dihydrophenazine, Phenoxazine, and Phenothiazine Organocatalysts Used in Atom Transfer Radical Polymerization.
Bhattacherjee A, Sneha M, Lewis-Borrell L, Amoruso G, Oliver TAA, Tyler J, Clark IP, Orr-Ewing AJ. Bhattacherjee A, et al. J Am Chem Soc. 2021 Mar 10;143(9):3613-3627. doi: 10.1021/jacs.1c00279. Epub 2021 Feb 25. J Am Chem Soc. 2021. PMID: 33629835
Excited singlet-state lifetimes extracted from the spectroscopic measurements are reported in N,N-dimethylformamide (DMF), dichloromethane (DCM), and toluene. ...For example, the photocatalyst 5,10-bis(4-cyanophenyl)-5,10-dihydrophenazine, shown previously to exert …
Excited singlet-state lifetimes extracted from the spectroscopic measurements are reported in N,N-dimethylformamide (DMF), dic …