A. Intermolecular hydrogen bonds increase the melting and boiling points of molecules B. Hydrogen bonds between different molecules increase mutual solubility C. Reduce the density of water D. The above three items 相关知识点: 试题来源: 解析 D 反馈...
The SIMS spectra clearly show that Zr and V both keep their hydrogen bonding ability also in the Laves phase without clearly perceptible alterations. Only the hydrogen bonding character of Zr seems to be influenced a little, probably due to a weak electron transfer from zirconium....
The hydrogen bonds are weak bonds, meaning that they are easily broken. Nonetheless, they can be reformed. The forming and breaking or any change in these bonds have bearing on the transformation of water from one form to another. The formation of hydrogen bonds, like other chemical bonds, r...
Evidence is presented that the dimers of alcohols and phenols have an open chain rather than a cyclic structure. It is also shown that the free OH groups of these dimers are able to form stronger hydrogen bonds than the original monomers... LJ Bellamy,RJ Pace - 《Spectrochimica Acta》 被...
Also, nonclassical interactions in nucleic acids such as interstrand bifurcated hydrogen bonds, interstrand close amino group contacts, C—H … O interbase contacts, sugar–base stacking, intrinsically nonplanar base pairs, out-of-plane hydrogen bonds, and amino–acceptor interactions are commented on....
In contrast, it was decreased with the interaction of gallium(III) with salicylic acid and EHPG. At pH 7.4, there was N···HO type intramolecular hydrogen bond in the former, and the latter existed O···HO type intramolecular hydrogen bond. Fluorescence titration of apoovotransfer 展开 ...
Learn about the properties of water and hydrogen bonding. Understand the chemical properties of water and the structure and density of water...
Thus, the open isomer is both thermodynamically and kinetically stable. This result rationalizes some experimental observations that indicated the existence of non-Lewis singlet species. 展开 关键词: bacteriorhodopsin hydrogen bonds molecular dynamics protonation vibrational spectroscopy DOI: 10.1021/jp711705...
The extremely weak broad band located at residing in the approximately 3000 cm−1 is interlayer and –OH group accredited to the existence of hydrogen bonds of metal hydroxide layers84. In addition; an aamddointigoHna2lOabmsoolrepctuiolens b8ule0ancn0wti dcvamenaltty...
B. Symmetry of hydrogen bonds in ice VII. J. Chem. Phys. 56, 712–715 (1972). Article ADS Google Scholar Redmer, R., Mattsson, T. R., Nettelmann, N. & French, M. The phase diagram of water and the magnetic fields of Uranus and Neptune. Icarus 211, 798–803 (2011). Article...