A5100351728- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Crystallography and molecular interactions
- Molecular Sensors and Ion Detection
- Metal complexes synthesis and properties
- Magnetism in coordination complexes
- Metal-Organic Frameworks: Synthesis and Applications
- Porphyrin and Phthalocyanine Chemistry
- Asymmetric Hydrogenation and Catalysis
- Chemical Reaction Mechanisms
- Enzyme Structure and Function
- Catalytic C–H Functionalization Methods
- Silicone and Siloxane Chemistry
- Catalysis for Biomass Conversion
- Catalytic Alkyne Reactions
- Organometallic Complex Synthesis and Catalysis
- Crystal structures of chemical compounds
- Electrocatalysts for Energy Conversion
- Catalysis and Hydrodesulfurization Studies
- Enhanced Oil Recovery Techniques
- Catalytic Processes in Materials Science
- Semiconductor Quantum Structures and Devices
- Luminescence and Fluorescent Materials
- Microbial Metabolic Engineering and Bioproduction
- Petroleum Processing and Analysis
University of Illinois Urbana-Champaign
2001-2024
Water Research Institute
2024
RIKEN Center for Sustainable Resource Science
2023-2024
Georgia Institute of Technology
2024
Yeungnam University
2023
RIKEN
2022
Hanyang University
2006-2022
Gyeongsang National University
2005-2020
University of Michigan
2011-2020
Chonnam National University
2007-2020
Sicher und atomökonomisch: Die intramolekulare Redoxreaktion eines Alkin-Nitrons, katalysiert durch ein elektrophiles Metall, liefert Azomethin-Ylide (siehe Schema; M: Metall). Diese atomökonomische Synthese von Azomethin-Yliden kommt ohne explosionsgefährliche Diazoderivate aus. können über eine dipolare Cycloadditionskaskade in Azabicyclo[3.2.1]octane überführt werden. Supporting information for this article is available on the WWW under...
We report geometry-dependent cyclizations of o-alkynylaryl ketoximes and nitrones catalyzed by gold complexes. (E)-Ketoximes undergo N-attack to give isoquinoline-N-oxides. In sharp contrast, (Z)-ketoximes unprecedented O-nucleophilic attack, followed a redox cascade leading novel catalytic entry isoindoles diverse scope. The structure an isoindole was unambiguously supported X-ray crystallography. demonstrated the generality synthesis from either (Z)-oximes or nitrones, presented...
An isomeric series of S2O macrocycles incorporating a xylyl group at the ortho (L1), meta (L2), and para (L3) positions were employed to examine influence ring rigidity on silver(I) coordination modes in resulting supramolecular complexes (1−3); L1 L3 afforded sandwich (1; Ag:L1 = 1:2) infinite 1-D (3) complexes, respectively; otherwise, L2 gave polymer (2a), 2:3 club (2b), unique 2:4 bridged dinuclear complex (2c) which their topologies vary with solvent used.
A two-dimensional square-grid-shaped coordination polymer incorporating the dithiaoxa macrocycle (1), [Cu(1)CN]n (2), has been prepared by a self-assembly process involving interaction of 1 with CuCN; parallel reaction CuI afforded one-dimensional double-stranded [Cu(1)I]n (3).
The NO2S2-donor macrocycle (L1) was synthesised from the ring closure reaction between Boc-N-protected 2,2'-iminobis(ethanethiol) (3) and 2,2'-(ethylenedioxy)bis(benzyl chloride) (4) followed by deprotection of Boc-group. alpha,alpha'-Dibromo-p-xylene employed as a dialkylating agent to bridge two L1 yield corresponding N-linked product (L2). X-ray structure L2 (as its HBr salt) is described. A range Cd(II) Hg(II) complexes (6-9) (10-12) were prepared characterised. Reaction HgX2 (X = Br or...
We report the unique thermoresponsive properties of fluorinated polyacrylamides, poly[N-(2,2-difluoroethyl)acrylamide] (P2F). The solubility polyacrylamides in water can be easily controlled by changing number fluorine atoms N-ethyl groups. Moreover, we demonstrate that are less cytotoxic than poly(N-isopropylacrylamide) (PNIPAM).
The S3O2 macrocycle L1 was synthesized by a dithiol-dihalide coupling reaction under high-dilution conditions. of with K2PdCl4 afforded an exocoordinated complex 1, [cis-Cl2Pd(L1)], which can then be manipulated to provide heterobinuclear 3, {[Pd(L1)Ag(NO3)(2.5)](NO3)(0.5)}n, utilizing endocyclic Pd(II) and exocyclic Ag(I) in single through successive AgNO3. network 3 contains unique honeycomb-like 2-D sheet made up the repeating unit [Ag6(NO3)6].
By virtue of simple one donor variations O2S2X-donor macrocycles (L1: XS, L2: XO and L3: XNH) towards silver(I) perchlorates, four supramolecular complexes (1–3) with different topologies have been isolated; L1 afforded solvent- anion-free sandwich complex (1), otherwise L2 L3 gave the dimeric (2a), 1-D polymeric (2b), tetrameric bowl-type (3) solvent or anion coordination.
A copper-zirconia composite having an evenly distributed lamellar texture, Cu#ZrO2, was synthesized by promoting nanophase separation of the Cu51Zr14 alloy precursor in a mixture carbon monoxide (CO) and oxygen (O2). High-resolution electron microscopy revealed that material consists interchangeable Cu t-ZrO2 phases with average thickness 5 nm. Cu#ZrO2 exhibited enhanced selectivity toward generation formic acid (HCOOH) electrochemical reduction dioxide (CO2) aqueous media at Faradaic...
ABSTRACT The effects of substrate analogs and energy inhibitors on glucose uptake phosphorylation by Clostridium beijerinckii provide evidence for the operation two systems: a previously characterized phosphoenolpyruvate-dependent phosphotransferase system (PTS) non-PTS probably energized transmembrane proton gradient. In both wild-type C. NCIMB 8052 butanol-hyperproducing mutant BA101, PTS activity declined at end exponential growth, while glucokinase increased in later stages fermentation....
Abstract Esters reduce to form ethers and alcohols on contact with metal nanoparticles supported Brønsted acidic faujasite (M‐FAU) that cleave C−O bonds by hydrogenation hydrogenolysis pathways. Rates selectivities for each pathway depend the identity (M=Co, Ni, Cu, Ru, Rh, Pd, Pt). Pt‐FAU gives propyl acetate consumption rates up 100 times greater than other M‐FAU catalysts provides an ethyl ether selectivity of 34 %. Measured formation rates, kinetic isotope effects, site titrations...
Abstract A transport model is proposed for wax deposition onto a cold finger from flowing wax‐containing oils. The solves transient energy and mass balances simultaneously reversible first‐order kinetic rate precipitation of pseudo‐single‐component wax, the effects yield stress using critical solid concentration to withstand flow‐induced at deposit‐fluid interface. can predict time evolution deposit thickness, spatial temporal temperature as validated experiments. It was found that high...
Glucose uptake and accumulation by Clostridium beijerinckii BA101, a butanol hyperproducing mutant, were examined during various stages of growth. in C. BA101 was repressed 20% 2-deoxyglucose 25% mannose, while glucose 8052 52 28% these sugars, respectively. We confirmed the presence phosphoenolpyruvate (PEP)-dependent phosphotransferase system (PTS) associated with cell extracts phosphorylation PEP. The PTS activity 50% that observed for 8052. also demonstrated lower fructose glucitol....
We report on scanning microphotoluminescence measurements that spectrally and spatially resolve emission from individual InAs quantum dots were induced by focused ion beam patterning. Multilayers of spaced 2 μm apart, with a minimum single dot line width 160 μeV, indicating good optical quality for patterned using this technique. Mapping 16 array sites, at least 65% occupied optically active the spectral inhomogeneity was within 30 meV.