Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

CS chemical

Skibsted, J., Vosegaard, T., Bildsoe, H., and Jakobsen, H. J. (1996). Cs chemical shielding anisotropies and quadrupole coupling constants from magic angle spinning NMR of cesium salts. J. Phys. Chem. 100, 14872-81. [Pg.266]

MCS stands for multiple chemical sensitivity and is also known as CS (chemical sensitivity), Cl (chemical injury), El (environmental illness), TILT (toxicant-induced loss of tolerance), twentieth-century illness and IEI (idiopathic environmental intolerance). MCS is the most common term for this condition, and is used around the world. [Pg.22]

Cs = Chemical Stockpile Emergency Preparedness Program (CSEPP) Chemical... [Pg.189]

Figure 9 Relative proportions of lithological types within intracratonic to transform hasins and the averages for geological periods. Based on the North American cross-sections in Cook and Bally (1975). An independent compilation hy Berry and Wilkinson (1994) from the same source, hut based on different criteria, yielded comparable temporal patterns. CCL coarse elastics FCL fine elastics CS chemical sediments. A global review based on the Ronov (1982) database also yields comparable patterns (after Veizer and Ernst, 1996). Figure 9 Relative proportions of lithological types within intracratonic to transform hasins and the averages for geological periods. Based on the North American cross-sections in Cook and Bally (1975). An independent compilation hy Berry and Wilkinson (1994) from the same source, hut based on different criteria, yielded comparable temporal patterns. CCL coarse elastics FCL fine elastics CS chemical sediments. A global review based on the Ronov (1982) database also yields comparable patterns (after Veizer and Ernst, 1996).
A comprehensive single-crystal Cs NMR study of Cs2Cr04 has yielded the magnitude and orientations of the Cs chemical shielding and quadrupolar tensors for the 2 crystallographically distinct Cs sites in this compound, indicating that the chemical shielding and quadrupolar interactions are not coincident for the 2 distinct caesium positions (Power et al. 1994). [Pg.666]

MCM-41-supported system by comparison with the unsupported mixed oxides, while a small difference observed in the Cs chemical shifts of the hydrated and dehydrated materials has been taken to indicate a weak interaction between water and the Cs (Kloetstra et a/. 1997). [Pg.673]

Studies using 133 132,133 showed an approximate -0.2 ppmK shift for CsBr. The Cs chemical shift also changed with temperature for the complexation of cesium tetraphenylborate with 18-crown-6 in pyridine, due to the presence of four constituents in the equilibrium, and the temperature dependence of the equilibrium constants. [Pg.27]

Edgewood Research Development, and Engineering Center, Department of the Army, Material Safety Data Sheet (MSDS) for Agent CS, Chemical Biological Defense Command, Aberdeen Proving Ground, Revised 30 June 1995. [Pg.506]

One potential drawback of devices in which adsorption occurs on a deep bed of catalyst packed in an MAS rotor is the occurrence of a nonuniform distribution of reactant. This problem is illustrated by the Cs MAS spectra of zeolite CsZSM-5 in Fig. 5 [47]. Without adsorbates, the Cs chemical shift was —157 ppm at 298 K. An amount of methanol- C equivalent to 1 methanol molecule for every Cs in the zeolite was then introduced using the apparatus in Fig. 4, and the spectrum in Fig. 5b was obtained. The spectrum shows the consequences of a deep-bed adsorption of a slowly diffusing adsorbate. Rather than a single Cs resonance reflecting the adsorption of one equivalent of the methanol, there are two signals one at — 157 ppm originating from the bottom of the catalyst bed and a second at — 82 ppm from the top of the catalyst bed. The... [Pg.145]

If six or seven acetylene molecules can coordinate Cs in CsZSM-5, it should be reflected in the Cs chemical shift of that material. Spectra obtained as a function of acetylene loading are shown in Figure 33. It is apparent that at least several acetylenes can strongly interact with the cation in CsZSM-5. [Pg.187]

Zhou, Z., Cironi, P., Lin, A. J., Xu, Y., Hrvatin, S., Golan, D. E., etal. (2007). Genetically encoded short peptide tags for orthogonal protein labeling by S and AcpS phosphopantetheinyl transferases. CS Chemical Biology, 2, 337—346. [Pg.118]

Kenakin, T. (2009b). Quantifying biological activity in chemical terms A pharmacology primer to describe drug effect. CS Chemical Biology, 4(4), 249—260. http //dx.doi. org/10.1021/cb800299s. [Pg.510]

Fig. 9. Backbone folding of short neurotoxin molecule as derived from Naja naja neurotoxin II study. Additional contacts from the studies of other neurotoxin are indicated as follows Mos - neurotoxin III Naja mossambica mossambica (36), Erb - erabutoxin b Laticauda semifasciata(40) and Ct - cobrotoxin Naja Naja atra(39). Abbreviation pK -deprotonation of ionogenic group influence on chemical shifts, + - charge effect on pK values, NOE - nuclear Overhauser effect, CS - chemical shift changes upon selective modification, SL - spin label broadening effects. Fig. 9. Backbone folding of short neurotoxin molecule as derived from Naja naja neurotoxin II study. Additional contacts from the studies of other neurotoxin are indicated as follows Mos - neurotoxin III Naja mossambica mossambica (36), Erb - erabutoxin b Laticauda semifasciata(40) and Ct - cobrotoxin Naja Naja atra(39). Abbreviation pK -deprotonation of ionogenic group influence on chemical shifts, + - charge effect on pK values, NOE - nuclear Overhauser effect, CS - chemical shift changes upon selective modification, SL - spin label broadening effects.
The use of a rubidium-xenon polarization unit has enabled the measurement of both Rb and Xe polarization. Three-dimensional Rb NMR imaging has been applied to pig hearts. Cs chemical shifts have been studied in binary melts of Cs+/M+-[02CCF3]- M = Li+, Na+, K+, Tl+. JC Cs F) = 54.9 Hz has been observed in the Cs+ complex of (4). Cs NMR spectra of the liquid crystalline medium have been examined for NMR quantum computing. NMR data have also been reported for potassium hydrido iodide,... [Pg.6]

K and > 383 K indicating that there may be a Cs-Cs dimer between two Cs atoms in adjacent Ge cages. Cs NMR spectra of a single crystal of tetragonal Cs" ( 15-crown-5)21 were obtained as a function of crystal orientation and analyzed to provide the magnitudes and orientations of the Cs chemical shift and quadrupolar tensors for two magnetically nonequivalent and symmetry related sites.The results showed that the local environment of the Cs nuclei is nonaxially symmetric. [Pg.113]

Group 1. Alkali Metals. NMR spectroscopy has been used to examine the preferential solvation of Li" in non-aqueous mixed solvents. Salt effects on the self-association of ethanol in water have been studied. The eoneentration dependence of " N, Na, and Cs chemical shifts in MNO3-HNO3 has... [Pg.54]

AIA = Analytical Instruments Association AFFN = ASCII free format numeric API = application programming interface ASDF = ASCII squeezed difference form ASMS = American Society of Mass Spectrometry ASTM = American Society for Testing and Materials CCDB = Committee on Chemical Databases CDF = common data form CPEP = Committee on Printed and Electronic Publications CS = chemical structure EPA = United States Environmental Protection Agency lUPAC = International Union of Pure and Applied Chemistry JCAMP-DX = Joint Committee on Atomic and Molecular Physical Data - Data Exchange LDR = labeled data record netCDF = network common data form SMD = standardized molecular data UCAR = University Corporation for Atmospheric Research XDR = external data representation. [Pg.2692]

Figure 3.2 Principle of the development of the volumetric proportions of the constituents of the cement paste during hydration. CS chemical shrinkage. Volumes is for cement V p, capillary water gel water, V, solid hydration products. (Based on Powers, T. C., Industrial and Engineering Chemistry, 27(7), 790-794, 1935.)... Figure 3.2 Principle of the development of the volumetric proportions of the constituents of the cement paste during hydration. CS chemical shrinkage. Volumes is for cement V p, capillary water gel water, V, solid hydration products. (Based on Powers, T. C., Industrial and Engineering Chemistry, 27(7), 790-794, 1935.)...
CS( ) = chemical shrinkage at time t (in millilitres/gram cement)... [Pg.79]


See other pages where CS chemical is mentioned: [Pg.296]    [Pg.735]    [Pg.736]    [Pg.735]    [Pg.140]    [Pg.141]    [Pg.735]    [Pg.670]    [Pg.671]    [Pg.673]    [Pg.736]    [Pg.328]    [Pg.119]    [Pg.466]    [Pg.158]    [Pg.20]    [Pg.257]    [Pg.93]    [Pg.74]    [Pg.116]    [Pg.978]    [Pg.376]    [Pg.247]    [Pg.468]    [Pg.43]    [Pg.518]   
See also in sourсe #XX -- [ Pg.372 , Pg.373 , Pg.374 , Pg.375 , Pg.376 , Pg.377 ]




SEARCH



C Chemical Shifts Revisited

C Chemical Shifts and Coupling Constants

C-13 NMR chemical shifts

C-13 chemical shifts

Chemical shift in ”C NMR

Cytochrome c oxidase chemical and physical properties

Mehltretter, C. L., The Chemical Synthesis of D-Glucuronic Acid

PVC-C examples of chemical behaviour at room temperature

Performance Factors for Chemical Process Plant Machinery Jim C. Fitch and Drew D. Troyer

Spencer Chemical Co [a)Cook-off temperature b)Detonation velocity c)Wax-gap

Wood Modification: Chemical. Thermal and Other Processes C. Hill

Wood Modification: Chemical. Thermal and Other Processes C. Hill 2006 John Wiley Sons, Ltd

© 2024 chempedia.info