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Possible gradient profiles showing the blending of solvent

Possible grafting mechanism of Wj on silica dehydroxylated at 700 C vs silica dehydroxylated at 200 C, proposed through analogy with silsesquioxane chemistry. Intermediates that have not been observed

Possible grafting reactions of EPS and NR with MA .

Possible group identification determined from a plot of207Pb 06Pb

Possible guest arrangements in PHTP inclusion channels. While the. .. DA... interaction is by far the most likely, the occurrence of a greater number of. ..DD... defects than. ..AA... results in overall crystal polarity.

Possible H2 CO ratios obtained from various syngas production processes. Adapted from Rostrup-Nielsen et al.10

Possible head-tail ordered commensurate in-plane herringbone . Only the unfilled and filled circles corresponding to two glide lines are observed at 22 K at submonolayer density. Adapted from

Possible head-tail ordered herringbone structures for a complete commensurate CO monolayer on the basal plane of graphite only the projection on the surface plane is shown and the directions of the molecular dipole moments are indicated by arrows, An-tiferroelectric structure with no net dipole. The principal axes of the ellipses correspond to the 95 electronic charge density contour given in Table I. Note that each type of head-tail ordering can be combined with any of the six herringbone ground states from

Possible helical configurations of disclination pairs in twisted nematics or cholesterics of large pitch .

Possible helical models for the gramicidin A ion channel. The polypeptides are represented as helical strips, one molecule being stippled for clarity. Numbers refer to the substituted terminal amino acid residues. Model , proposed originally by Urry, is the one now generally accepted

Possible helical structures of a copolymer of achiral and chiral bounded phenylacetylenes. Space filling models are shown of the top . The helix-sense of the main-chain is

Possible heme-binding sites in cytochrome b

Possible heterolytic mechanism for the PFL-mediated cleavage of pyruvate by pyruvate formate-lyase.

Possible heterosynthons involving io-nicotinamide and carboxylic acids

Possible homo-dimers of psPtDNA

Possible HOMO-LUMO electron donation for some H-bonded dimers

Possible homoatomic 1,2-anionic rearrangements. Undetectable means that observation of the rearrangement would be impossible by product analysis except through isotopic labeling.

Possible hosts to organize triacetylenes with 7.4 A spacing along the stacking direction for a topochemical polymerization.

Possible hybridizations and geometries of aluminum

Possible hydration modes of an ion pair

Possible hydration spheres around anions showing the expected bond valences

Possible hydride- between the individual TMP isomers.

Possible hydrogen bonding in polyurethanes

Possible hydrogen bonding interaction in psilocin.

Possible hydrogen bonding interactions for -phenylalanine intercalated in an Mg Al LDH. Reprinted with permission from . Copyright American Chemical Society



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