P-crystal

I = tip speed of the propeller or impeller, m/s p = crystal density, g/ciTr... 

Jeffrey, P.D., Gorina, S., Pavletich, N.P. Crystal structure of the tetramerization domain of the p53 tumor suppressor at 1.7 Angstroms. Science 267 1498-1502, 1995. 

To a 1-1. separatory funnel is added ca. 500 ml. of 20% aqueous silver nitrate solution (100 g. of Mallinckrodt C.P. crystals to ca. 500 ml. of water). The pentane solution is added to the separatory funnel in five approximately equal portions, with intermittent shaking until all the silver nitrate complex has gone into solution (Note 15). 

Let us now consider the crystallization process operating on a composition C2, initially poorer in component 1 this composition falls into the compositional triangle C -2-3. Crystallization begins in primary phase field y" (T = 1225 °C). Precipitation of y" crystals drives the residual liquid radially away from C2 along direction 2-C2. At T = 1100 °C, the composition of the liquid reaches cotectic line Ejii-P, where crystals y " begin to form together with y". At peritectic point P, crystals y" are partially resorbed by reaction with the liquid to form intermediate compound C . However, the peritectic reaction is not completed, because of ex-... 

Its atomic volume and d.h.c.p. crystal structure are similar to those of light lanthanides this is also the case for its cohesive properties (AHs = 285 kJ/mole and Tm = 1170 °C). 

Cowan, S.W. Schirmer, T., RummefG., Steiert, M., Ghosh, R., Pauptit, R.A., Jansonius, IN. and Rosenbusch, . P. Crystal structures explain functional properties of two E. coli porins (1992) Nature 358, 727-733... 

Russo,A-A., Jeffrey,P.D., Patten,A.K., Massague, and Pavletich,N.P. Crystal structure of the p27Kipi cyclin-dependent-kinase inhibitor bound to the cyclinA-Cdk2 complex (1996) Nature 382, 325-331... 

Cho, Y, Gorina, S., Jeffrey, P.D. and Pavletich, N.P Crystal structure of a p53 tumor suppressor-DNA complex understandung tumorigenic mutations (1994) Science 265, 346-355... 

York P. Crystal engineering and particle design for the powder compaction process. Drug Dev Ind Pharm 1992 18 677-721. 

Demonstrate this result for the diffusion of a randomly walking diffusant in an h.c.p. crystal using the information and results in Exercises 8.9 and 8.10. 

Interfaces may also be classified broadly into homophase interfaces and heterophase interfaces. A homophase interface separates two regions of the same phase, whereas a heterophase interface separates two dissimilar phases. Crystal/vapor and crys-tal/liquid interfaces are heterophase interfaces. Crystal/crystal interfaces can be either homophase or heterophase. Examples of crystal/crystal homophase interfaces are illustrated in Figs. B.2, B.4, and B.5. Examples of heterophase crystal/crystal interfaces are shown in Figs. B.6 and B.7. Figure B.6o shows an interface between f.c.c. and h.c.p. crystals where the small mismatch between close-packed lll fcc... 

P Crystal field theory is an elec-1 1 trostatic model. Valence bond... 

Brock, C. P., Crystal packing in vicinal diols CnHm(OH)(2). Acta Crystallogr. Sect. B-Struct. Commun. 2002, 58, 1025-1031. 

Guzman, R. J., Lemarchand, P., Crystal, R. G. et al. (1993). Efficient gene-transfer into myocardium by direct-injection of adenovirus vectors. Circul. Res. 73(6), 1202-1207. 

Continuous studies were performed in specially prepared microreactors molded from PDMS, designated PDMS (Sylgard 184 silicone elastomer Dow Corning) poured onto silicon wafer molds. The microreactor molds were prepared using 4-in. silicon wafers of Type P, crystal orientation of , resistivity of 1 to 2 Q, and thickness of 457-575 pm from Silicon Quest (Santa Clara, C A). After preparation, mixtures of urease enzyme and PDMS (designated PDMS-E) were poured onto the microreactor mold and allowed to cure at ambient conditions. 

When the reaction was performed in the presence of the P-crystal of tryptamine and p-chlorobenzoic acid, the (P)-pyrimidyl alkanol was obtained in 90% yield with an ee of 89% (Scheme 17) [98]. In contrast, in the presence of the M-crystal instead of the P-crystal, the reaction between aldehyde 11 and z-Pr2Zn always gave (S)-12 with an ee of 95% in good yield. These results clearly exhibit the correlation between the chirality of the co-crystal and the absolute configuration of the resulting alkanol 12. 

Examination of Eqs. (12) to (16) reveals five distinct rate steps dissolution of B the reaction between A and B the generation of P nuclei in the liquid phase the mass transfer of dissolved P to the growing P crystals and the surface integration of the solute P into the crystal lattice (i.e., the crystal growth step). The relative importance of each of these steps can be characterized by a dimensionless number. For a reaction which is second order overall, and for nucleation and growth kinetics which can be represented by conventional power law expressions, we have... 

FIGURE 3.10 Crystallization curves (a) clinoptilolite amorphization curve, (b) faujasite crystallization, and (c) zeolite P, crystallization. 

Shul ga Yu.M., Tarasov B.P. Crystallic hydrofullerenes production and properties. In Fullerenes and fullerenelike structures . 2000. Minsk BGU. P. 14-19. 

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