搜索结果: 1-15 共查到“理学 Carbonyl”相关记录25条 . 查询时间(0.093 秒)
Measuring Electrostatic Fields in Both Hydrogen Bonding and non-Hydrogen Bonding Environments using Carbonyl Vibrational Probes
Ribonucleases Molecular Probes Protein Conformation Vibration Acetophenones Molecular Dynamics Simulation Static Electricity Hydrogen Bonding Solvents
2016/5/25
Vibrational probes can provide a direct readout of the local electrostatic field in complex molecular environments, such as protein binding sites and enzyme active sites. This information provides an ...
Origins of the Sensitivity of Molecular Vibrations to Electric Fields:Carbonyl and Nitrosyl Stretches in Model Compounds and Proteins
phosphoenolpyruvate carboxylase thermostable limited proteolysis flexible loop main chain connectivity
2016/5/24
The vibrational Stark effect (VSE) is the effect of an electric field on the vibrational spectrum. Typically, the largest change induced by an electric field is the linear frequency shift whose sensit...
Heterogeneous reactions of carbonyl sulfide on mineral oxides: mechanism and kinetics study
carbonyl sulfide mineral oxides mechanism and kinetics study
2010/11/29
The heterogeneous reactions of carbonyl sulfide (OCS) on the typical mineral oxides in the mineral dust particles were investigated using a Knudsen cell flow reactor and a diffuse reflectance UV-vis s...
Direct reductive amination of carbonyl compounds using sodium borohydride-silica chloride
Reductive amination silica chloride sodium borohydride
2010/10/15
A simple and convenient procedure for reductive amination of aldehydes and ketones using sodium borohydride in the presence of silica chloride as an active, inexpensive, recoverable, and recyclable ca...
Seasonal Variation and Source Apportionment of Atmospheric Carbonyl Compounds in Urban Kaohsiung, Taiwan
Carbonyl compounds Seasonal variation Receptor model PCA APCS
2016/3/29
The concentrations of 18 atmospheric carbonyls species were measured at Nan-Chie and Hsiung-Kong sites in
Kaohsiung City, Taiwan, during the summer and winter of 2006. Formaldehyde and acetaldehyde w...
Carbonyl sulfide exchange in a temperate loblolly pine forest grown under ambient and elevated CO2
Carbonyl sulfide loblolly pine forest CO2
2010/2/1
Vegetation, soil and ecosystem level carbonyl sulfide (COS) exchange was observed at Duke Forest, a temperate loblolly pine forest, grown under ambient (Ring 1, R1) and elevated (Ring 2, R2) CO2. Duri...
双(1-甲基咪唑-2-基)甲酮、双(1-甲基咪唑-2-基)甲烷及双(1-甲基咪唑-2-基)乙烯与第六族羰基金属化合物的反应研究（Reactivity of (Mim)2C=O, (Mim)2CH2 and (Mim)2C=CH2 (Mim=1-Methylimidazole-2-yl) with Group 6 Metal Carbonyl Complexes）
1-甲基咪唑 晶体结构 第六族羰基金属化合物
2010/8/18
本文研究了羰基钼(钨)与双(1-甲基咪唑-2-基)甲酮和双(1-甲基咪唑-2-基)甲烷以及双(1-甲基咪唑-2-基)乙烯的反应，获得了6个双齿螯合的双(1-甲基咪唑-2-基)甲酮，双(1-甲基咪唑-2-基)甲烷和双(1-甲基咪唑-2-基)乙烯四羰基金属衍生物，以及1个单齿配位的双(1-甲基咪唑-2-基)乙烯五羰基钨化合物。它们的结构通过红外，核磁以及X-射线单晶衍射分析得到确证。所有这些新化合物的...
A simple and efficient one-pot multicomponent synthesis of b-acetamido carbonyl compounds with Zn(HSO4)2 and Co(HSO4)2 as catalysts
Darking-West reaction metal catalysis acatamido carbonyl compounds
2010/4/8
Zn(HSO4)2 and Co(HSO4)2 has been used as efficient catalysts for the preparation of b-acetamido carbonyl compounds by Dakin-West reaction.
An approach to retrieve information on the carbonyl fluoride (COF2) vertical distributions above Jungfraujoch by FTIR multi-spectrum multi-window fitting
carbonyl fluoride (COF2) vertical distributions Jungfraujoch FTIR multi-spectrum multi-window fitting
2009/12/3
We present an original multi-spectrum fitting procedure to retrieve volume mixing ratio (VMR) profiles of carbonyl fluoride (COF2) from ground-based high resolution Fourier transform infrared (FTIR) s...
Comparative study of the effect of water on the heterogeneous reactions of carbonyl sulfide on the surface of α-Al2O3 and MgO
water heterogeneous reactions carbonyl sulfide MgO
2009/9/2
Here we compared the heterogeneous reactions of carbonyl sulfide (OCS) on the surface of α-Al2O3 and MgO and the effect of water on the reactions at 300 K using Knudsen cell–mass spectrometry, diffuse...
Comparing forward and inverse models to estimate the seasonal variation of hemisphere-integrated fluxes of carbonyl sulfide
Comparing forward and inverse models seasonal variation hemisphere-integrated fluxes carbonyl sulfide
2009/3/12
A simple inverse model is proposed to deduce hemisphere-integrated COS flux based on published time series of total column COS. The global atmosphere is divided into two boxes representing the Norther...
The flux of carbonyl sulfide and carbon disulfide between the atmosphere and a spruce forest
flux of carbonyl sulfide carbon disulfide atmosphere spruce forest
2009/3/12
Turbulent fluxes of carbonyl sulfide (COS) and carbon disulfide (CS2) were measured over a spruce forest in Central Germany using the relaxed eddy accumulation (REA) technique. A REA sampler was devel...
Carbonyl compounds in boreal coniferous forest air in Hyytiälä, Southern Finland
Carbonyl compounds boreal coniferous forest air Hyytiä lä Southern Finland
2009/3/5
A variety of C1-C12 carbonyl compounds were measured in the air of a boreal coniferous forest located in Hyytiälä, Southern Finland. 24-hour samples were collected during March and April in ...
High Yielding Oxidative Deprotection of Silyl and Pyranyl Ethers to Their Corresponding Carbonyl Compounds with Strontium Manganate in the Presence of Aluminium Chloride in Solution and Under Solvent-Free Conditions
Strontium manganate aluminium chloride solvent-free conditions oxidative deprotection tetrahydropyranyl ethers
2010/4/13
Strontium manganate (SrMnO4) in the presence of aluminium chloride (AlCl3) is an efficient reagent for the high yielding oxidative deprotection of aromatic and aliphatic silyl and pyranyl ethers into ...
Soil atmosphere exchange of carbonyl sulfide (COS) regulated by diffusivity depending on water-filled pore space
Soil atmosphere exchange carbonyl sulfide (COS) water-filled pore space
2010/1/15
The exchange of carbonyl sulfide (COS) between soil and the atmosphere was investigated for three arable soils from Germany, China and Finland and one forest soil from Siberia for parameterization in ...