Investigation of N-H•••O interactions in N-monosubstituted caproamide - Ether systems: FT-IR and FT-NIR spectroscopic study

被引：2
|
作者：
Despotovic, V [1 ]
Kordic, B. [1 ]
Kovacevic, M. [1 ]
Petrovic, S. [2 ]
Jovic, B. [1 ]
机构：
[1] Univ Novi Sad, Fac Sci, Dept Chem Biochem & Environm Protect, Trg D Obradovica 3, Novi Sad 21000, Serbia
[2] Univ Belgrade, Fac Technol & Met, Karnegijeva 4, Belgrade 11000, Serbia
来源：
JOURNAL OF MOLECULAR STRUCTURE | 2019年 / 1181卷
关键词：
N-monosubstituted caproamides; Hydrogen bond; Ethers; FT-IR; FREQUENCY-SHIFTS; HYDROGEN; PYRIDINE; WATER;
D O I：
10.1016/j.molstruc.2018.12.081
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
This paper reports FT-IR and FT-NIR spectroscopic study of hydrogen bonding between N-mono-substituted caproamides and different ethers (diethyl ether and tetrahydrofuran) in carbon tetrachloride. With increase in ether concentration increase in intensity of red-shifted band, and decrease of intensity of monomer band has been observed. The MIR and NIR spectroscopic characteristics for N-H center dot center dot center dot O hydrogen bonded complexes and also the equilibrium constants for 1:1 complex formation are given. Further, influence of structural differences of ethers on hydrogen bonding was investigated using Taft equation. Good correlation between logarithm of formation constants and Taft steric and inductive factors has been obtained only for tetrahydrofuran in MIR range. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：19 / 24
页数：6
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