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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Room Temperature Gibbs Energies of Hydrogen-Bonded Alcohol Dimethylselenide Complexes
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Room Temperature Gibbs Energies of Hydrogen-Bonded Alcohol Dimethylselenide Complexes

机译：室温Gibbs氢键键聚二羟基硒络合物的能量

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摘要

A number of hydrogen-bonded complexes, formed between an alcohol donor and dimethylselenide, have been detected experimentally, at room temperature in the gas phase using FTIR spectroscopy. The Gibbs energy of complex formation has been determined from the measured integrated absorbance of the hydrogen-bonded OH stretching band and the calculated oscillator strength of the associated transition. The OH stretching frequency and Gibbs energy of the selenium hydrogen-bonded complexes are compared to those found in complexes with the same donor molecule and either dimethylether (O) or dimethylsulfide (S) as the acceptor molecule. For a given donor, we found a similar OH stretching frequency in the complexes for each of the three acceptors O, S, and Se. However, the Gibbs energies were found to be less positive (i.e., stronger bound) for the dimethylether complexes (OH center dot O), as compared to the dimethylsulfide (OH center dot S) and dimethylselenide (OH center dot Se) complexes, with the latter two having comparable Gibbs energies.
机译：在通过FTIR光谱的空气相的室温下通过实验检测在醇供体和二甲基硒酰基之间的许多氢键合络合物。复杂地层的GIBBS能量已经从测得的氢键孔拉伸带和相关转变的计算振荡器强度的测量的综合吸光度确定。将硒氢键合复合物的OH拉伸频率和Gibbs能量进行比较，与具有相同供体分子的配合物和二甲醚（O）或二甲基硫化物作为受体分子的聚合物。对于给定的供体，我们发现三个受体O，S和SE中的每一个的复合物中的类似OH拉伸频率。然而，与二甲基硫化物（OH中心点S）和二甲基硒（OH中心点SE）配合物相比，吉布斯能量被发现对二甲基醚络合物（OH中心点O）的阳性（即，较强的结合）较低（即，较强的结合）。后两个具有可比的吉布斯能量。

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