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Ring opening of 7 with vinyllithium, followed by hydrophosphination of the vinyl group and borane protection afforded 102 in 89% yield. Acidic metha-nolysis and reaction of the obtained phosphinite borane with n-anisyllithium produced the desired compound 103 in 35% yield over the last two steps. Compound 103 can be easily deboronated with diethylamine.  [Pg.220]

Gouverneur and co-workers used several phosphine boranes and phosphinite boranes bearing alkenyl groups prepared by the Juge-Stephan method in metathesis reactions (see Chapter 6, Section 6.2.6), but they were prepared as racemates intentionally. [Pg.220]


The group of tests that must be performed for each pesticide depends on how that pesticide is to be used. For example, if a pesticide is not used on food or feed crops, extensive residue and metaboHsm tests in plants and domestic animals might not be required. Similarly, if a pesticide is not used in field crops nor on other extensive outdoor areas, aH the environmental fate studies might not be required. [Pg.146]

Other extensive tables are given by Angus, S., International Theimodynamic Tables of the Fluid State—6, Nitrogen, Perganion, 1977 (244 pp.) Hanley, H. J. M., R. D. McCarty, etal.,y, Fhys. Chem. Ref Data, 3 (1974) 979-1019. [Pg.301]

Popiolek, Z. 1981. Problems of testing and mathematical modeling of plumes above human body and other extensive heat sources. A4-serien no. 54, Inst, for Uppv.- o Vent, teknik, KTH, Stockholm. [Pg.541]

As with other extensive variables, we will usually work with the molar function Um defined as... [Pg.17]

Only differences in A can be calculated because of its relationship to U in equation (1.20). As with the other extensive properties, the molar (intensive)... [Pg.20]

Since we expect entropy to be extensive and behave like the other extensive thermodynamic properties, the integration constant must be equal to zero so that... [Pg.77]

Under Article 7(1), if the country that receives a notification concludes that further data and information are needed for performing health and environmental assessments of the new substance, it may require the notice submitter to provide those data. This may involve completion of the Annex VII base set (for PMN s that invoke the "escape clause"), and/or performance of further tests specified in Annex VIII, in addition to those contained in Annex VII.(24) Annex VIII specifies a series of sub-chronic and chronic tests, as well as other extensive (and expensive) data requirements that may be required as a part of followup notifications once a chemical enters commercial production and its production volume increases substantially. [Pg.43]

As in the other extensions of vinylallene (2), there are also four ways to connect an additional allene group to 2, of which two apparently have been described in the chemical literature. [Pg.214]

Although successful attempts have been reported on electron density distribution measurements by electron diffraction and other extensions of the tech-nique its principal application has remained the determination of molecular geometry and intramolecular motion. To increase accuracy and to extend stmctural information for more complicated molecules, the most promising recent development is the combined analysis of diffraction and spectroscopic data. The studies of Kuchitsu, cf. have to be mentioned here, followed by an increasing number of investigations by others. [Pg.47]

Neuron A, shown at left, receives synaptic inputs from many neurons and sends its axon to make synapses with neuron B and others. Extensions called dendrites branch out from the cell body—the soma—and are the sites of many synapses. [One synapse is shown magnified.)... [Pg.74]

Since the above simple derivation unifies the TF model and the vW model in a coherent approach, researchers were quite encomaged to try other extensions based on Eq. (53) to improve its accuracyThere are two simple ways to accomplish this replacing G [g] by a function of electron number N and nuclear charge... [Pg.132]

Ensure the input scaffold and the building block plain text lists are saved in the. smi extension format. Any other extension formats are unrecognizable by the CLEVER enumerator and will generate an error. [Pg.355]

It turns out that the Krieger-Dougherty equation can also be used for intermediate shear rates with suitable modifications. Experimental data also suggest that [77] and 7 are independent of particle size, although they are stress dependent. Therefore viscosities of monodis-persed colloids of different particle sizes can be represented by a single equation by suitably defining the variables. A discussion of these and other extensions may be found in Barnes et al. (1989). [Pg.169]

The functional relationship that expresses how U depends on other extensities Xj is called the fundamental equation of equilibrium thermodynamics ... [Pg.306]

To obtain a local quantification of entropy in a nonequilibrium material, consider a continuous system that has gradients in temperature, chemical potential, and other intensive thermodynamic quantities. Fluxes of heat, mass, and other extensive quantities will develop as the system approaches equilibrium. Assume that... [Pg.24]

Take 05 to be the closure of X in Prx s. Since the points of AsstOS ) are the same as those of Ass(tS), it follows from 2(XV) that X is flat over S. The uniqueness of X follows from the fact that every other extension of X to Prx s has associated points whose image is s. [Pg.70]

All other extensive quantities can be written as a sum of three components one of bulk phase a, one of bulk phase / , and one of the interfacial region a. Examples are the internal energy U, the number of molecules of the th substance Nu and the entropy S ... [Pg.27]

Positron physics has undergone very rapid development during the past several years. Accordingly, there has developed a need for a comprehensive up-to-date review of the field, which we hope this book will satisfy. No other extensive review of both experimental and theoretical aspects of the field has been published previously and therefore we believe it is timely to publish this book now. [Pg.463]

If we have one degree of freedom, then we may assign values to one of the intensive variables within limits. When we use the temperature as an example, we can use Equation (5.67) to solve for one of the extensive variables in terms of the temperature and the other extensive variables. Thus, the value of the entropy is determined in principle from the known values of the temperature, the volume, and the mole numbers. If the system has two degrees of freedom, then two of Equations (5.67)-(5.69) may be used to solve for two of the extensive variables in terms of two intensive variables and the remaining extensive variables. We thus find that for each degree of freedom that the system has, we may substitute one intensive variable for one extensive variable. This means that, in addition to substituting the temperature and pressure for the entropy and volume, we may substitute the chemical potential of a component for its mole number. This is seldom necessary experimentally, because the determination of the number of moles of each component usually presents no problem. The arguments and results are identical for systems on which restrictions have been placed. [Pg.81]

The internal energy is homogeneous of degree 1 in terms of extensive thermodynamic properties, and so equation 2.2-8 leads to equation 2.2-14. All extensive variables are homogeneous functions of the first degree of other extensive properties. All intensive properties are homogeneous functions of the zeroth degree of the extensive properties. [Pg.24]

Finally, we remark that the problem of the calculation of molecular quantities directly comparable with the outcome of experiments in the liquid phase is not limited to the realm of the NLO processes. All experiments involving the interaction of light with molecules in condensed matter are plagued by this problem. The methodology reviewed here has been applied (with appropriate modifications) to various spectroscopies, IR [23], Raman [24], Surface Enhanced Raman Scattering (SERS) [25], vibrational circular dichroism (VCD) [26] and linear dichroism [27] with equal reliability, and other extensions will come. [Pg.250]

Other extensions that have been made include the construction of a biochip in which a reverse transcription PCRprocess can be carried out [384] and the integration of PCR with capillary electrophoresis [385], DNA microarray hybridization [386] and sample preparation [387,388]. The speed of analysis, the ease of integrating different functions and the relative low costs of micro-PCR production are important advantages of the miniaturized PCR technique that suggest that this bioorganic microreactor device will be thoroughly implemented in many analytical labs. [Pg.188]

In this equation the properties V, V1, and V may be either molar or unit-mass values. The mass or molar fraction of the system that is vapor xv is called the quality. Analogous equations can be written for the other extensive thermodynamic properties. All of these relations may be summarized by the equation... [Pg.101]

If the quantity of adsorbent should be increased by the addition of more material in the same state of subdivision, we could measure changes in volume, in heat capacity, and in certain other extensive properties which can be directly observed. We could differentiate any one of these properties with respect to the number of moles of adsorbent (whether the system contains one, two, or more components) to obtain a partial molal property. The partial molal property so obtained would be the weighted average for interior and exterior adsorbent and is in harmony with Equations 9 and 11. [Pg.359]

Other extensions of the Nenitzescu reaction are the use of a-ketoenamines (see equations 233-235) which mainly yield non-indolic compounds. Another extension is the application to -substituted aminomethylene ketones leading to compounds with indole-2-one structure by rearrangement (see Section II.B, equations 158-160). [Pg.564]

Since the temperature is not uniform for the whole system, the total entropy is not a function of the other extensive properties of U, V, and N. However, with the local temperature, the entropy of a nonequilibrium system is defined in terms of an entropy density, sk. [Pg.54]

Biogeochemical cycles interact with each other extensively in space and time. This is true not only for C, H, and O, which are cycled by the same two processes of photosynthesis and respiration, but also for cycles that are driven by different biochemical processes and performed by distinct microorganisms. [Pg.160]

It is convenient in the following development to suppose that mole numbers and other extensive quantities are on a per gram of adsorbent basis, so that nl the moles of solute adsorb per gram is given by... [Pg.382]


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Extension to Other Molecular Weight Averages

Extension to Other Operators

Extension to Other Processes

Extension to Other Reaction Orders and Particle Geometries

Extension to other equilibria

Other SMILES Extensions

Outlook Extension to Other Synthetic Processes With Integrated Separation

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