The Change of Diamagnetic Susceptibility and the Thermodynamic Data due to Hydrogen Bonding between 2-Propanol and Various Hydrogen Acceptors.
The Change of Diamagnetic Susceptibility and the Thermodynamic Data due to Hydrogen Bonding between 2-Propanol and Various Hydrogen Acceptors.
复制标题
2-丙醇与各种氢受体之间的氢键引起的抗磁化率和热力学数据的变化。
DOI：
10.1246/bcsj.67.2967
复制
发表时间：
1994
影响因子：
4
通讯作者：
Yohsuke Mizutani
中科院分区：
文献类型：
--
作者：
F. Takahashi;Yasuzo Sakai;Yoshinori Nakazawa;Yohsuke Mizutani
测定了异丙醇与各种氢受体体系的抗磁磁化率和平衡常数。丙酮、甲乙酮、四氢呋喃、二甲基亚砜和N，N-二甲基乙酰胺被用作氢受体。根据2-丙醇和四氯化碳的混合物的结果，没有自缔合的2-丙醇的抗磁性磁化率估计为−41.7 × 10−6 cm 3 mol−1。然后计算了氢受体和2-丙醇在无自缔合情况下的抗磁磁化率之和。从实验结果和计算值之间的差异，反磁化率（ΔχM）的变化，由于氢键估计在9.0-13.5 × 10−6 cm 3 mol−1的区域。测定了氢键作用的ΔH、ΔS和ΔG。ΔχM似乎与ΔS和ΔG有关。另一方面，ΔH为−17.9-18.7 kJ mol−1，似乎与ΔχM无关。
The diamagnetic susceptibility and the equilibrium constants were determined for systems of 2-propanol and various kinds of hydrogen acceptors. Acetone, methyl ethyl ketone, tetrahydrofuran, dimethyl sulfoxide, and N, N-dimethylacetamide were used as hydrogen acceptors. The diamagnetic susceptibility of 2-propanol without self-association was estimated to be −41.7 × 10−6 cm3 mol−1 from the results for mixtures of 2-propanol and carbon tetrachloride. Then the sum of the diamagnetic susceptibilities of both a hydrogen acceptor and 2-propanol without self-association was calculated. From the differences between experimental results and calculated values, the changes of diamagnetic susceptibility (ΔχM) due to hydrogen bonding were estimated to be in the region of 9.0—13.5 × 10−6 cm3 mol−1. ΔH, ΔS, and ΔG due to hydrogen bonding were determined. ΔχM seemed to be related to ΔS and ΔG. On the other hand, ΔH was −17.9—18.7 kJ mol−1, and it seemed not to be related to ΔχM.