CISES systems

An isomeric form of the anion that is initially formed is converted to the aU-cis system rapidly at room temperature.Data on the equilibrium acidity of the parent hydrocarbon are not available, so the stability of the anion cannot be judged quantitatively. The NMR spectrum of the anion, however, is indicative of aromatic character. 

This arrangement is also shown in Fig 5). Under these conditions the GC-CI system is quite simple and does not require an interfacing device to eliminate the carrier gas... 

The imaging data were collected over the spectral range of 1200-2400nm at lOnm increments using a Sapphire NIR-CI system (Spectral Dimensions, Inc., Olney, MD, USA). The size of FOV was 13 x 10mm, each pixel sampling an area of approximately 40 x 40 Um. 

EFFECTSGIS—This is a conglomerate package for modeling chemical releases. These releases are linked to appropriate physical phenomena models, such as pool fire models to predict the consequences on humans. The program is equipped with an internal mini-CIS system to enable calculation results, such as heat radiation, to be overlayed onto maps. 

The absorption of the alkene bond in conjugation with the carbonyl group occurs at a lower frequency than that of an isolated C=C bond the intensity of the conjugated double-bond absorption, when in an s-cis system, is greater than that of an isolated double bond. 

The imaging data were collected over the spectral range of 1200-2400 nm at 10-nm increments using a Sapphire NIR-CI system (Spectral Dimensions, Inc., Olney, MD, USA). The size of FOV was 13 x 10 mm, each pixel sampling an area of approximately 40 x 40 pm. The concentrations of the active ingredients as reported from the manufacturer s label are 37% acetaminophen, 37% aspirin, and 10% caffeine. The remainder of the tablet mass represents the excipient (binder, disintegrant, and lubricant) materials. Pure acetaminophen, aspirin, and caffeine samples are obtained in either tablet form or powder compact and are used to obtain reference spectra of pure components. 

Weininger D., James C.A., Daylight CIS Systems Administration, Daylight CIS, Irvine, CA, 1993. 

Other systems can be treated in a similar manner such as the Ti-B-CI-H system,10 and of course the Si-H-CI system has been exhaustively studied because of the commercial importance of silicon epitaxial films used for integrated circuit fabrication.11... 

Figure 4 Equilibrium CVD phase diagram for the Nb-Ge-H-CI system. The diagram was constructed from thermodynamic calculation results and depicts the condensed phases which form as a function of experimental variables. The Nb/(Nb+Ge) values are reactant gas concentrations. After Wan.9...

Dokiya, M., Y. Kotera (1976), Hybrid Cycle with Electrolysis Using Cu-CI System , International Journal of Hydrogen Energy, Vol. 1, pp. 117-121. 

Braude s data for a cis-S-cis system. In the UV of 51, the absorption maxima are situated at 230 and 270 m u they are consistent with a cis-S-cis structure. In fact, investigation of models shows that the side chain lies in a different plane from that of the ring. The absorption at 270 m u corresponds to that of a disubstituted homoannular diene, the absorption at 230 mM to the S-m form of a conjugated ester. On the other hand, the lactonization of the crude product from irradiation of 49 provides evidence for the formation of the two acids, 52 and 53, since it enables us to separate a 5-lactone 54 and a 7-lactone 55. The latter is produced by lactonization of 53 and shows a maximum at 212 m u, which disappears after reduction. 

For the CI2/CI system a platinum-coated titanium electrode becomes passive when the anodic overvoltage is more than about 0.2 V, presumably because the rate-determining step cr — e Cl(adsorbed) no longer takes place easily on the electrode surface. 

ARPES for the Ag(001 )-CI system (ref. 7) identify the participation of substrate 5s, 5p, and 4d levels in the chemisorption of Cl-atoms at different coverages. Strong attenuation of the 5sp (2.5 eV ) and the 4 d-bands of Ag (4.5 eV) is observed. In particular the decline in d-band emission intensity is strongly dependent on adlayer coverage. Similar behavior is shown by the 5 sp band. On the other hand the Cl induced levels at 3.5 eV (Cl 3pz) are enhanced with growing adlayer coverage. 

Firouzabadi, H., Hassani, H., Hazarkhani, H. Heterogeneous Swern Oxidation. Selective Oxidation of Alcohols by DMSO/Si02-CI System. Phosphorus, Sulfur Silicon Relat. Elem. 2003, 178, 149-153. 

Fig. 6. Temperature Dependence of Magnetic Moments for f1 Ci Systems. (Here and in Figs. 7-9,--4f,------5f)...

Thus, diaziridine (5) is also named as a 2-hydrazipropane. A convenient short name for the N-N fragment of the diazirine cycle is azi (not to be confused with the similar abbreviations azy and azo for the residues of aziridine 2-carboxylic acid and azetidine 2-carboxylic acid, respectively <84YGK390>. The chemical structures of diaziridinone (6), diziridinimine (7), as well as fused diaziridine C—N bridged (8) and N—N bridged (9) (usually cis) systems are given. 

Henilingram (if W-CI system, Ruff and Wunsch, Z. anorg. Chem. 85292 (1914). 

Synthesis of frans-hydrindanes via bicyclization is effectively induced by a tetramethylallyl cation. The central double bond undergoes anti attack by the initial cation and the terminating nucleophile implying that E double bonds generate trans ring junctions and (Z)-olefins lead to the corresponding cis systems (Stork-Eschenmoser postulate)9. 

It had previously been found that the rate of interconversion of enantiomers ( rac) is several times greater than the rate of isomerization of the geometric isomers (ifcjgom). In the cis system (7) little exchange is... 

In one early study, viscometry in combination with gel chromatography was used to evaluate the effects of HOCl on the one hand, and the complete MPO/H2O2/CI" system, on the other hand, on the solutions of HA [257]. It was shown that already very small concentrations (in the pM range) of HOCl lead to a considerable reduction of the viscosity of HA, whereas much higher concentrations of HOCl are required to observe fragmentation products of HA. This discrepancy is explained by structural changes of the HA polymer chain in the presence of very small amounts of HOCl [257],... 

The Zn -Ci system has also been investigated in THF and 1,2-DME, and, once again, there is little evidence for the formation of the [ZnCUf ion, the major solution species being... 

Mechanical effects in the film-CI system are able to intensify absorption of the inhibitor by the pol3Tner material. 

---