账务
高级检索

keyword

Temperature(remove)

keyword

NMR(remove)

二次搜索

GO
首页 > 报刊文摘
搜索 获得约330条结果,(用时0.0470秒)
排序:相关度 | 标题

Solid-state nitrogen-14 nuclear magnetic resonance enhanced by dynamic nuclear polarization using a gyrotron

By combining indirect detection of 14N with dynamic nuclear polarization (DNP) using a gyrotron, the signal-to-noise ratio can be dramatically improved and the recovery delay between subsequent experiments can be shortened.

出版机构:Elsevier Science

刊物名称:Journal of Magnetic Resonance

出版时间:2010

ISSN:1090-7807

数据源:报刊文摘

One-Pot Synthesis of Furans from Isoxazolines with Iron as Reducing Agent

highly efficient route to substituted furans from readily available 5-hydroxymethyl-substituted ?2- isoxazolines is described. The transformation involves sequential reduction/hydrolysis/cyclocondensation in a one-pot reaction using iron as reducing agent under mild conditions.

出版机构:Bentham Science Publishers

刊物名称:Letters in Organic Chemistry

出版时间:2010

ISSN:1570-1786

数据源:报刊文摘

Conformational properties of 1-fluoro-1-methyl-silacyclohexane and 1-methyl-1-trifluoromethyl-1-silacyclohexane: Gas electron diffraction, low-temperature NMR, temperature-dependent Raman spectroscopy, and quantum chemical calculations

Hence, G ax G eq =0.11(13)kcalmol 1 for 1, whereas 2a and 2e have virtually the same free energy. Low-temperature 19F NMR experiments resulted in G ax G eq =0.26(2)kcalmol 1 at 125K for 1 and G ax G eq =0.36(2)kcalmol 1 at 118K for 2.

出版机构:Elsevier Science

刊物名称:Journal of Molecular Structure

出版时间:2010

ISSN:0022-2860

数据源:报刊文摘

Temperature-dependent structural changes in intrinsically disordered proteins: Formation of α-helices or loss of polyproline II?

Structural characterization of intrinsically disordered proteins (IDPs) is mandatory for deciphering their potential unique physical and biological properties.

出版机构:Wiley Subscription Services, Inc., A Wiley Company

刊物名称:Protein Science

出版时间:2010

ISSN:0961-8368

数据源:报刊文摘

A general protocol for temperature calibration of MAS NMR probes at arbitrary spinning speeds

protocol using 207Pb NMR of solid lead nitrate was developed to determine the temperature of magic-angle spinning (MAS) NMR probes over a range of nominal set temperatures and spinning speeds.

出版机构:Elsevier Science

刊物名称:Solid State Nuclear Magnetic Resonance

出版时间:2010

ISSN:0926-2040

数据源:报刊文摘

Thermal and odd–even behaviour in a homologous series of lithium n-alkanoates

? Odd-even alteration, in a homologous series of lithium n-alkanoates, is explained. ? Odd chain length compounds are higher in density and melting point. ? This results from a more favourable interaction between methyl groups from opposite chains in a lamellar bi-layer.

出版机构:Elsevier Science

刊物名称:The Journal of Chemical Thermodynamics

出版时间:2011

ISSN:0021-9614

数据源:报刊文摘

Cover Picture: Towards a Quantitative Understanding of Protein Hydration and Volumetric Properties / Intrinsic Volumetric Properties of Trialanine Isomers in Aqueous Solution / Temperature and Concentration Effects on the Solvophobic Solvation of Methane in Aqueous Salt Solutions / Salt Effects on the Structure of Water Probed by Attenuated Total Reflection Infrared Spectroscopy and Molecular Dynamics Simulations / Thermodynamic and Structural Characterization of the Transformation from a Metastable Low‐Density to a Very High‐Density Form of Supercooled TIP4P‐Ew Model Water / The Solvent‐Dependent Shift of the Amide I Band of a Fully Solvated Peptide as a Local Probe for the Solvent Composition in the Peptide/Solvent Interface / Multiple Phases of Liquid Water / Which Properties of a Spanning Network of Hydration Water Enable Biological Functions? / Effect of Osmolytes on Pressure‐Induced Unfolding of Proteins: A High‐Pressure SAXS Study / Spectral Signatures of the Pentagonal Water Cluster in Bacteriorhodopsin / Potential Proton‐Release Channels in Bacteriorhodopsin / Conformational Dynamics of Minimal Elastin‐Like Polypeptides: The Role of Proline Revealed by Molecular Dynamics and Nuclear Magnetic Resonance / Small‐Angle X‐Ray Scattering and Near‐Infrared Vibrational Spectroscopy of Water Confined in Aerosol‐OT Reverse Micelles / Hydration Dynamics of Water near an Amphiphilic Model Peptide at Low Hydration Levels: A Dielectric Relaxation Study (ChemPhysChem 18/2008)

The cover picture shows water molecules in different hydration shells at the surface of the model protein ubiquitin. The properties of proteins and the role of solvent in conformational dynamics is a central topic to the DFG?Foschergruppe (FOR 436) which forms the basis of this special issue.

出版机构:WILEY‐VCH Verlag

刊物名称:ChemPhysChem

出版时间:2008

ISSN:1439-4235

数据源:报刊文摘

Conformational Dynamics of Minimal Elastin‐Like Polypeptides: The Role of Proline Revealed by Molecular Dynamics and Nuclear Magnetic Resonance

Previous molecular dynamics studies of the elastin?like peptide (ELP) GVG(VPGVG) predict that this ELP undergoes a conformational transition from an open to a more compact closed state upon an increase in temperature.

出版机构:WILEY‐VCH Verlag

刊物名称:ChemPhysChem

出版时间:2008

ISSN:1439-4235

数据源:报刊文摘

Spin Kinetics of 3He in Contact with Synthesized PrF3 Nanoparticles

Two nanosized PrF3 samples were synthesized using two different procedures. The X-ray and HRTEM experiments showed high crystallinity of synthesized samples.

出版机构:Springer US

刊物名称:Journal of Low Temperature Physics

出版时间:2011

ISSN:0022-2291

数据源:报刊文摘

Protein Flexibility and Ligand Recognition: Challenges for Molecular Modeling

Depending on the nature of the target system, ligand binding can be associated with small local adjustments in side chains or even the backbone to large-scale motions of structural fragments, domains or even subunits.

出版机构:Bentham Science Publishers

刊物名称:Current Topics in Medicinal Chemistry

出版时间:2011

ISSN:1568-0266

数据源:报刊文摘