1. This allows hydrogen bonds to reform.

2. Glu115 also forms hydrogen bonds to His118 and to Asp84, and Glu238 hydrogen-bonds to Glu204.

3. These polymers can form intermolecular hydrogen bonds which greatly enhance crystallite stability.

4. Distortions due to the formation of hydrogen bonds are usually smaller than those due to co-ordination to metal ions.

5. It therefore seems that both DNA structure and hydrogen bonding to guanine contribute towards sequence recognition.

6. Glutamic acid 170 forms the final main-chain hydrogen bond in the molecule.

7. Protein residues in contact are also shown, with hydrogen bonds as dotted lines.

8. There are no main-chain hydrogen bonds to the metal ligand side chains.

9. The energy of this hydrogen bonding is comparable to that of the torsion-angle strain.

10. For clarity, the three hydrogen bonds mentioned in the text are not illustrated.

11. As hydrogen bonds are thermally labile a rise in T reduces the number of bonds and causes eventual phase separation.

12. Hydrogen bond interaction exists in the blends.

13. The energy of the hydrogen bond is largely electrostatic in origin.

14. The hydrogen bond length between the soap molecules and molecular bulk modulus of the soap in lubricating greases were also calculated.

15. It implied that the hydrogen bond played an important role in depressing the energy of reaction.

16. There is no enough hydrogen bond for sepiolite so treatment is needed to improve the strength and permeance property of the filter paper.

17. The hydrogen bond on the complanate triangle structure of thiourea, a kind of neutrality substance, can be the identification point to anion.

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18. The transient nature of the binding may be because this sequence is recognized on account of its structure without additional hydrogen bonding contacts.

19. It is now believed that the peculiar properties of water are due to what is known as hydrogen bonding.

20. These unusual chemical shifts for imino and amino protons are indicative of novel hydrogen bonding.

21. Charged residues are only occasionally found in the interior, where they form hydrogen bonds to oppositely charged residues or main-chain atoms.

22. On selecting the solvent, its molecular diameter and ability to form hydrogen bond should be considered.

23. One part is anchoring group, which can be tightly adsorbed on the surface of pigments through chemical bond, hydrogen bond or with the help of surface synergist.

24. Vibration analysis show that dimer and trimer have typical red-shift hydrogen bond.

25. The presence of echo-substituents in diazo component which can form intermolecular hydrogen bond with imino group in the hydrozon form is in favour of the dyeing behaviors.

26. In MR - LDHs, interlayer guest adopt - layer arrangement and effect with host through electrostatic force and hydrogen bond.

27. Infrared spectrum analysis indicated that there were some combined forces between ketoconazole and excipients, maybe like hydrogen bond in moleculars or between moleculars and so on.

28. The microparticle could link with pulp fibre through ionic bond and hydrogen bond, from which excellent retention effect of copolymer initiated.

29. FT-IR results showed that the Keggin geometry of PWA and PVA were still preserved inside the PWA/PVA composite thin films and a charge-transfer bridge was built between PWA and PVA via hydrogen bond.

30. The result shows that the absorptions of oleic acid and sodium oleate on oil sand are not only non polarity but also hydrogen bond.

31. The existence of hydrogen bond within or between the molecules of pigment can enhance the perdurability, light fastness and weather resistance.

32. All of the reactions were spontaneous thermodynamics reactions, and the major driving forces were hydrogen bond and van der Waals force.

33. PAATEA gelator self-assembles into molecular gel by hydrogen bond, ionomer or metal coordination, which was proved by the FT-IR and theoretics analysis.

34. According to the AIM and NBO analysises, hydrogen bond between thymine and formaldehyde plays an important role in stabilizing the complex. Conformer (A) has the most stability in this work.

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35. The results show that surfactants are adsorbed on soil particles by electrostatic attraction, ionic exchange, hydrogen bond, and other methods.

36. To explore the role of the bridged N atom for a possible proton transfer in the active site of hydrogenase, we tried to introduce a hydrogen bond into a couple of designed molecules.

37. Results One MH was entrapped by two MAAs in methanol through hydrogen bond.

38. Some of the acetone and methanol molecules are formed with such a complex possessed a six-membered ring-like structure involving non-linear hydrogen bond.

39. The bonding models of large π bond, hydrogen bond, HOMO and LUMO are discussed.

40. There are strong intra-molecular hydrogen bonds for those molecules that are difficult to form hydrogen bond in non-polar solvents.

41. The hydrogen bond does not belong to the chemical bond, neither belong to the van der Waals force. It is a special kind of bond situated between the chemical bond and the van der Waals force.

42. Is a hydrogen bond shorter, or is a nitrogen-nitrogen triple bond going to be shorter?

43. The active area of ENOLASE will potentially exist multi - hydrogen bond of donor and acceptor.

44. So, this phenomenon also indicated that the intermolecular hydrogen bond was important for resonance enhancement.

45. H atom of phenolic hydroxyl in the ligand was attractive to N atom forming intramolecular hydrogen bond, and a new six-membered ring was formed by the hydrogen bond connection.

46. The results show that the hydrogen bond of supercritical water near critical region is only 29% of that of ambient condition.

47. There are many factors to affect the strong or weak of acidness of organic compounds. The paper expresses the strong or weak influence of Hydrogen bond on acidness of organic compounds in detail.

48. These properties are due to a unique kind of a bond known as the hydrogen bond.

49. For nitro derivatives of aminobenzenes and phenols, there is intermolecular Hydrogen bond in the molecule.

50. The hypothesis of hydrogen bond magnetization resonance theory is firstly proposed for analyzing the magnetization mechanism.

51. The pharmacophore included a hydrogen bond receptor, a hydrogen bond donor, a hydrophobic area and a phenyl ring with a chlorine or a bromine atom.