红外光谱研究(CD3)2CHOH的配位和吸附。I -与路易斯酸配位

Advances in Molecular Relaxation and Interaction Processes Pub Date : 1982-11-01 DOI:10.1016/0378-4487(82)80045-9

J.P. Gallas, C. Binet

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引用次数: 6

摘要

用红外光谱研究了四氯化碳溶液中A←0(H)CH(CD3)2和A←(CD3)2CHOH]2的相互作用，其中A为路易斯酸:SbCl5、AlCl3、AlBr3、SnCl4、BF3、Eu(food)3、ICl、I2和S02。在配位中，ν(OH)和ν(CO)的频率减小，强度增大，ν(CH)的振动则相反;ν(CD3)波段表现为重态;对γ(CH)和{δ(CH)， δ(OH)}频率无显著影响。Brönsted或路易斯酸的络合焓与Δν(CH)位移呈线性相关。

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Etude par spectroscopie infrarouge de la coordination et de l'adsorption de (CD3)2CHOH. I - coordination avec des acides de lewis

The A ← 0(H)CH(CD₃)₂ and A ← (CD₃)₂CHOH]₂ interactions were shown by an infrared study of complexes in carbon tetrachloride solutions, where A is a Lewis acid : SbCl₅, AlCl₃, AlBr₃, SnCl₄, BF₃, Eu(fod)₃, ICl, I₂ and S0₂. In the coordination, the ν(OH) and ν(CO) frequencies decrease and the intensities increase, it is the opposite trend for the ν(CH) vibration ; the ν(CD₃) band appears as a doublet ; there is no significant effect on the γ(CH) and {δ(CH), δ(OH)} frequencies. The complexation enthalpies, for Brönsted or Lewis acids, and the Δ $ν$ (CH) shifts are linearly correlated.

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Advances in Molecular Relaxation and Interaction Processes

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