In pure methanol, the gradual spectral changes of individual vibrational modes against the temperature indicate weakening of the intermethanol hydrogen bonding with temperature, but imply that it still remains at the critical temperature of methanol. In the methanol/water mixtures with low methanol ...
moleculesandthering-likewatercomple es.InwaterandmethanolsolVent,thepolymerchain, PNIPAM,canform hydrogenbondwithsolVentmolecules.Itcanstretchtocoilshapeandbe soluble.ButwhenthetwosolVentsaremi ed,waterandmethanolmoleculeswillform stable comle esbecauseofstrongdouble-hydrogenbonding.TheactiVepointofhydrogenbondsof...
The internal rotation of formamide with 0–5 water molecules oriented along the N–C bond has been studied by the fullabinitioself‐consistent field theory... W Chen,MS Gordon - 《Journal of Chemical Physics》 被引量: 222发表: 1996年 Theoretical study of hydrogen bonding in liquid and gaseo...
The use of methanol is particularly interesting in this regard, because it is inexpensive and can reform itself with water to release hydrogen with a high gravimetric density of 18.8 per cent by weight. But traditional reforming of methanol steam operates at relatively high temperatures (200–350 ...
Hydrogen Bonding of Methanol with Bridged OH Groups of Zeolites: Ab Initio Calculation, 1H NMR and FTIR Studies AlH2−O−SiH2−OH are used to study interaction complexes of methanol-d3 with bridging hydroxyls of zeolites (represented by H-mordenite and HZSM-... J Kotrla,D Nachtigal...
The structure of ambient water. Molecular Physics: An International Journal at the Interface Between Chemistry and Physics 108, 1415–1433 (2010). 5. Wilson, K. R. et al. X-ray absorption spectroscopy of liquid methanol microjets: bulk electronic structure and hydrogen bonding network. J. Phys...
Methanol is liquid at STP because of the hydrogen bonding phenomenon arising from its OH characteristic group, as explained in more detail in Section 2.1. Also advantageous is that methanol is not a mixture of compounds of which the properties can change depending on the source, as is the ...
H2O, HDO, and CH3OH Infrared Spectra and Correlation with Solvent Basicity and Hydrogen Bonding A study has been made of the infrared O—H bands for CH3OH, DOH, and H2O in solution and of their correlation with hydrogen bonding and solvent basicity. I... Glew,D.,N.,... - 《Canadian...
How to justify this contradiction in acid-base equilibrium of methanol and water? [duplicate] We know that methanol is slightly more acidic than water, because water's ability to donate a proton as an acid is reduced due to extensive hydrogen bonding. [...] [...] It is very clear that...
This has been attributed to an insufficient consideration for the long-range hydrogen-bonding in the model. 展开 DOI: 10.1080/00268978300102771 被引量: 28 年份: 2006 收藏 引用 批量引用 报错 分享 全部来源 免费下载 求助全文 全文购买 Taylor & Francis 国家科技图书文献中心 (权威机构) 掌桥科研 dx....