Schematic representation of hydrogen-bond

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

Fig. 9. Schematic representation of hydrogen bonding in styrene-co-NMI/PMMA blends...

FIG. 6 J 2 Schematic representation of hydrogen bond formation in monolayers of urea containing amphiphiles 20 at the air/water interface. 

PIC. 6.12 Schematic representation of hydrogen bond formation in monoiayers of urea containing amphiphiies 20 at the alr/water interface. 

Fig. 4. Schematic representation of hydrogen bond (a) and covalent bond (b) between core and shell.

Figure24 A schematic representation of hydrogen-bonding interactions between the end groups of teiecheiic polymers (adapted from B.J.B. Folmer, R.R Sijbesma, R.M. Versteegen, J.A.J. van der Rijt, and E.W. Meijer. Adv. Mater. 12 874-878, 2000.).

Figure 29 A schematic representation of hydrogen-bonding interactions between polymers 51 and 52 in a polymer blend [95],...

Figure 12 Schematic representation of hydrogen bonded stack of linear bis-urea...

Fig. 8. Schematic representation ofthe hydrogen-bond potential. The solidline (dipole-dipole interaction potential) and the dot (position of minimum, and energy at the minimum) are the only features that are known. The dashed line is an empirical potential constructed to fit tie-known data (Poland and Scheraga, 1967).

Figure C3.2.18.(a) Model a-helix, (b) hydrogen bonding contacts in tire helix, and (c) schematic representation of tire effective Hamiltonian interactions between atoms in tire protein backbone. From [23].

Figure 3.11 Schematic representation of the energy levels in various types of 3-centre bond. The B-H-B ( electron deficient ) bond is non-linear, the ( electron excess ) F-Xe-F bond is linear, and the A-H B hydrogen bond can be either linear or non-linear depending on the compound.

Fig. 1. Schematic representation of the chain alignment of a triple helix. Circles represent o-carbons, that of glycine is denoted number 1. Heavy circles indicate the chain in front, the N-terminal is at the bottom. The intrachain hydrogen bonds are designated by broken lines...

Fig. 2 Schematic representation of cellulose structures in solution Part A shows the fringed micellar structure. Parts B and C show possible chain conformations of celluloses of different DP. For high molecular weight cellulose, C, intra-molecular hydrogen bonding is possible...

Fig. 3.1 Schematic representation of the two modes of distamycin DNA complexes with putative hydrogen bonds shown as dashed lines. Circles with dots represent lone pairs of N(3) of purines and 0(2) of pyrimidines...

Fig. 9. Schematic representations of the canal structures of (a) urea and (b) thiourea, drawn to emphasise the similarities and differences between them, Each triangular host molecule is denoted by a stippled triangle, with the NH2 functions at the ends of the vertical edge. Oxygen or sulfur atoms lie in layers, outlined by the dotted hexagons. The thick inter-host lines are hydrogen bonds each O or S atom is involved in four hydrogen bonds, and each NH2 function is involved in two...

Fig. 27. Schematic representation of the group III vacancy having one of its dangling bonds saturated by hydrogen. The black spheres represent the group V atoms and the white one the hydrogen atom. 

Fig. 5.2. Schematic representation of H-Ni/ZnO system showing hydrogen adatom a of electronic energy eaa with bond energy ft attached to Ni surface atom at m = 0. Reprinted from Davison et al (1988) with permission from...

Fig. la-d Schematic representation of the relationship between neutral, internally charge-assisted and externally charge-assisted hydrogen bonds... 

Figure 4 Schematic representation of intra/intermolecular interaction via hydrogen bond.

Fig. 2.1 Dipole and hydrogen bond interactions. A schematic representation of (a) head-to-tail dipole-dipole attractive interactions (e.g., in tri-n-octylamine) (b) head-to-head dipole-dipole repulsive interactions caused by steric hindrance (e.g., in dibutyl sulfoxide) (c) chainlike dipole-dipole interactions (e.g., in 1-octanol) (d) a cyclic, hydrogen-bonded dimer (e.g., in hexanoic acid).

Scheme 2.1 Schematic representation of intramolecular molecular dynamics in hydrogen-bonded 2,6-dihydroxybenzoic acid.

Figure 3.10 Schematic representation of all the critical points in the dimeric structure (BH3-NH3)2. The hydrogen atoms are represented by the small gray spheres, and the bond critical points are represented by the small black spheres. The ring critical points are noted as two large spheres. A dotted line shows the dihydrogen bond s bond path. (Reproduced with permission from ref. 16.)...

Figure 1. Schematic representation of the relationships between proposed catalytic and inhibitory mechanisms. A. Postulated general acid-general base catalyzed mechanism for substrate hydrolysis by an aspartyl protease. The water molecule indicated is extensively hydrogen bonded to both aspartic acid residues plus other sites in the active site (see Reference 16 for details). Hydrogen bonds to water are omitted here. B. Kinetic events associated with the inhibition of pepsin by pepstatin. The pro-S hydroxyl group of statine displaces the enzyme immobilized water molecule shown in Figure lA. Variable aspartyl sequence numbers refer to penicillopepsin (pepsin, Rhizopus pepsin), respectively.

Figure 6.1 General schematic representation of pol3mier-mediated assembly of nanoparticles (a) functionalization of nanoparticles through place-exchange method, (b) incorporation of complementary functional group to pol3miers, and (c) self-assembly of nanoparticles through electrostatic or hydrogen bonding interactions.

Fig. 23. a the 1 2 complex between [18]crown-6 and /trans-PtCh PMe3)NHi] 35 1. b Schematic representation of the three bifurcated hydrogen bonds in the 1 1 [trans-PtCl2(PMe3)NH3] dibenzo[18]crown-6 complex 35 >. 

Fig. 19. Schematic representation of the relationships between hydrogen bonding and miscibility /complexation in systems containing inherent interacting sites and controllable hydrogen bonding...

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