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Association structures

Specinfo, from Chemical Concepts, is a factual database information system for spectroscopic data with more than 660000 digital spectra of 150000 associated structures [24], The database covers nuclear magnetic resonance spectra ( H-, C-, N-, O-, F-, P-NMR), infrared spectra (IR), and mass spectra (MS). In addition, experimental conditions (instrument, solvent, temperature), coupling constants, relaxation time, and bibliographic data are included. The data is cross-linked to CAS Registry, Beilstein, and NUMERIGUIDE. [Pg.258]

F. Candau, in M. A. El-Nokaly, ed., Poljmer Association Structures Microemulsions and Eiquid Crjstals (ACS Symposium Ser. 384), American Chemical Society, Washington, D.C., 1989, pp. 47—61. [Pg.146]

References Kossen Heertjes, Chem. Eng. Sci., 20, 593 (1965). Pan et al.. Dynamic Pr operties of Interfaces [Pg.1879]

In the majority of vertebrates, sex is determined by genetic composition, but this is by no means universal. In most species, the genes of an individual direct all of the later ontogenetic processes involved in male-female differentiation of the genitalia and associated structures. [Pg.63]

Phillips, S.E.V. Built by association structure and function of helix-loop-helix DNA-binding proteins. Strueture 2 1-4, 1994. [Pg.172]

The polymeric organotin carbonate is less volatile than the oxide and, in this connection, tris(tributylstannyl) phosphate, (Bu3Sn)3P04, which is likely to have a similarly self-associated structure [cf., (MejSn)3(P04)2-8 HjO (593)], is also being used as a wood preservative (533) in Holland. [Pg.55]

FIGURE 2.5 Schematic representation of hydrogen-bonded self-associative structures of higher fatty acids (a) cyclic associative dimer and (b) linear associative multimer. [Pg.24]

Poran N. (1998). Vomeronasal organ and its associated structures in the opossum Monodelphis domestica. Micros Res Techn 43, 500-510. [Pg.238]

Zingeser M.R. (1984). The nasopalatine ducts and associated structures in the rb monkey (Macaca mulatto) — topography, prenatal development, function phylogeny. Am J Anat 170, 581-595. [Pg.260]

Walter RH (1998) Polysaccharide association structures in food. Marcel Dekker, New York, p 289... [Pg.41]

Loss of the native conformation of a protein generally exposes hydrophobic amino acid residues that are normally buried on the inside of the self-associated structure and are shielded from the aqueous environment. This leads to association between the exposed hydrophobic residues of neighboring proteins (aggregation) or between these exposed residues and hydrophobic surfaces that the protein may encounter either in the manufacturing process or in the primary package. [Pg.405]

The role of various surfactant association structures such as micelles and lyotropic liquid crystals (372), adsorption-desorption kinetics at liquid-gas interfaces (373) and interfacial rheology (373) and capillary pressure (374) on foam lamellae stability has been studied. Microvisual studies in model porous media indicate... [Pg.38]

Wu, L.-Y. (1965) The development of the stichosome and associated structures in Trichinella spiralis. Canadian Journal of Zoology 33, 440—146. [Pg.145]

Figure 4.2 Hypothetical plasma membrane (PM)-associated structure of FR02. Four histidine residues (white spots) predicted to coordinate two intramembraneous haem groups (white bars) are indicated, as are the tetrapeptide binding sites for FAD and N AD(P)H. The sites of mutations in the FRO gene are indicated (frdl-l,frdl-3) i, inside cell o, outside cell. Reprinted with permission from Nature (Robinson et al., 1999). Copyright (1999) Macmillan Magazines Limited. Figure 4.2 Hypothetical plasma membrane (PM)-associated structure of FR02. Four histidine residues (white spots) predicted to coordinate two intramembraneous haem groups (white bars) are indicated, as are the tetrapeptide binding sites for FAD and N AD(P)H. The sites of mutations in the FRO gene are indicated (frdl-l,frdl-3) i, inside cell o, outside cell. Reprinted with permission from Nature (Robinson et al., 1999). Copyright (1999) Macmillan Magazines Limited.
These and related compounds are represented as having associated structures since the more familiar (e.g., Refs. 2,3,91) internal salt or anhydrohydroxomercuriocarboxylate structure, e.g.,... [Pg.259]

The solubility parameter of water is 17 or 23, depending on the association structure of water used in the calculation. None of the values listed in Table II are within two units of either value and by the general rules of the solubility concept, none of the polymers in Table II should be water soluble. Homopolymers of monomers c, e, or f in Figure 3 are not water soluble. The solubility values listed for the W-SPs studied do not correlate with the equilibrium pressures observed. A general correlation is noted if the values of the most hydrophobic segments (i.e., the oxypropyl, oxybutyl and acetate) are compared with PMVE. The... [Pg.121]

Figure 2.2. Classes and examples of common metallo-organic starting compounds used in chemical solution deposition processing. A common feature for all compounds is M-O-C bonding. Associated structures are also shown. [Adapted with permission from Ref. 8 R. W. Schwartz et al., C. R. Chemie, 7, 433 (2004).]... Figure 2.2. Classes and examples of common metallo-organic starting compounds used in chemical solution deposition processing. A common feature for all compounds is M-O-C bonding. Associated structures are also shown. [Adapted with permission from Ref. 8 R. W. Schwartz et al., C. R. Chemie, 7, 433 (2004).]...
The voh stretching frequency of trimesityltin hydroxide (Ar43SnOH) shows a sharp band at 3629 cm-1, pointing to a monomeric non-associated structure. This is in contrast with the broad band of trimethyltin hydroxide122 (see also Table 8). [Pg.379]

Isopropyltriisopropoxystannane has monomeric structure in solution and the associated structure 48 in the solid phase. [Pg.388]

The heteroarylstannanes bear the same relation to the arylstannanes as do the heteroarenes to the arenes, with the extra factor that the Lewis acidity of the stannyl group may cause the heteroarylstannanes to have self-associated structures. [Pg.826]

Biliaderis, C. G. (1998). Structures and phase transitions of starch polymers. In "Polysaccharide Association Structures in Food" (R. H. Walter, ed.), pp. 57-168. Marcel Dekker Inc., New York, NY. [Pg.261]

The carboxylic acids were combined with hexylamlne and water in order to study the association structures formed. The hexyl-amine was chosen because it did not by Itself form a liquid crystalline phase with water. Fig. 3A. Water dissolves in the amine to a maximum of 60% to form an isotropic solution. The liquid crystal is formed first at a certain octanoic acid amine ratio, approximately 0.1. The liquid crystalline phase forms a large region reaching to a weight fraction of 0.61 of the acid, corresponding to a 1 1 molar ratio of the two species. [Pg.108]

Kind of Mineralization and its basics and principals in ore forming and associated structure. [Pg.399]

In practice, recombination of structure factors involves first weighting of the phases of the modified structure factors in a resolution dependent fashion, according to their estimated accuracy or probability. Every phase also has an experimental probability (determined by experimental phasing techniques and/or molecular replacement). The two distributions are combined by multiplication, and the new phase is calculated from this combined probability distribution. The measured associated structure factor amplitude is then scaled by the probability of the phase, and we have our set of recombined structure factors. [Pg.148]

Lehn and Rotello s groups extensively studied diacyldiaminopyridines that form triple hydrogen bonded associated structures with uracil and thymine groups (Gulik-Krzywicki et al. 1993 Carroll et al. 2003 Stubbs and Week 2003 Sanyal et al. 2004). lUian et al. (2000) studied the formation of vesicles from mixtures of randomly functionalized complementary copolymers containing thymine groups and... [Pg.79]


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