While the main chain hydrogen bonding is important to protein folding defining the secondary structural elements, hydrogen bonding between the side chains is crucial to protein−protein interactions. The contributions of hydrogen bonds in protein interactions are clearly evident from the burial of polar...
Our studies provide several lines of evidence and a working model for not only the existence of low-barrier hydrogen bonds in proteins, but also a connection to enzyme cooperativity. This finding suggests new principles of drug and enzyme design, in which sequences of residues can be ...
Some covalently bonded hydrides have a hydrogen atom bound simultaneously to two separate electronegative atoms, which are then said to be hydrogen bonded. The strongest hydrogen bonds involve the small, highly electronegative atoms of fluorine (F), oxygen, and nitrogen. In the bifluoride ion, HF2...
Infrared Study (3700 - 3000 cm1) of Hydrogen Bonds Involving Triphenyl Derivatives of Group V Elements 来自 Semantic Scholar 喜欢 0 阅读量: 21 作者: Broekmans, G.,Zeegers-Huyskens, Th.摘要: The hydrogen bonded complexes between hydroxylic derivatives and nitrogen bases have been extensively ...
This started the infrared investigations of hydrogen bonds, which became the most sensitive and the most widely applied experimental method of studying this phenomenon in clusters and in the liquid and solid phases. In the condensed phase the vibrational spectra are often determined with the Raman ...
Hydrogen bonding, interaction involving a hydrogen atom located between a pair of other atoms having a high affinity for electrons; such a bond is weaker than an ionic bond or covalent bond but stronger than van der Waals forces. Hydrogen bonds can exist
O–S hydrogen bonds, which allows the framework to shrink wrap around guest molecules by puckering of the GS network about a hinge with retention of hydrogen bond connectivity. This attribute eliminates disorder and mitigates solvent inclusion in the vast majority of cases. More than five hundred ...
Formation or Bonds Between Hydrogen and Elements of Group 0decarboxylationhydroxycarbonyl complexesformate complexeseliminationchiral complexdecarboxylation;hydroxycarbonyl complexes;formate complexes;elimination;chiral complexdoi:10.1002/9780470145166.ch181N. Bartlett...
In the syn -( Z ) conformation, such intramolecular hydrogen bonds can also include the pyrrole N–H. In the anti -( Z ), intramolecular hydrogen bonds can include the pyrrole C(7)-H. Evidence for both monomer conformations in equilibrium is provided by 1 H NMR analyses, which indicate ...
Hydrogen, which is the first element in the periodic table of elements, having the atomic number 1, is a non-metal, colorless, odorless, highly reactive, self-burning characteristic gas that has all the qualities to be a fuel for our automobiles and a future energy source. In contrast to ...