Crystal structure and vibrational spectra of bis(2‒isobutyrylamidophenyl)amine: a redox noninnocent ligand
作者:Arslan, Hakan、Aslantatar, Emrah、Gümüş, İlkay、Macbeth, Cora E.、Sharma, Savita K.、Villanueva, Omar
DOI:10.3906/kim-2106-56
日期:——
The molecular structure of bis(2-isobutyrylamidophenyl)amine (H3LNNN) has been determined from single-crystal X-ray diffraction data. The crystal packing of H3LNNN is governed by the N-H...O and C-H...O hydrogen-bonding and C-H...π stacking interactions between the vicinal molecules. The intermolecular interactions in the crystal structure of H3LNNN have been also examined via Hirshfeld surface analysis and fingerprint plots. The Hirshfeld surface analysis showed that the important role of N-H...O and C-H...π interactions in the solid-state structure of H3LNNN. The molecular structure, vibrational frequencies, and infrared intensities of H3LNNN were computed by ab initio HF and DFT (B3LYP, B3PW91, and BLYP) methods using the 6-31G(d,p) basis set. The computed theoretical geometric parameters were compared with the corresponding single crystal structure of H3LNNN. The harmonic vibrations calculated for the title compound by the B3LYP method are in good agreement with the experimental IR spectral data. The theoretical vibrational spectrum of the H3LNNN compound was interpreted through potential energy distributions using the SQM Version 2.0 program. The performance of the used methods and the scaling factor values were calculated with PAVF Version 1.0 program.
根据单晶 X 射线衍射数据确定了双(2-异丁酰氨基苯基)胺 (H3LNNN) 的分子结构。H3LNNN 的晶体堆积受 N-H...O、C-H...O 氢键和 C-H...π 堆积相互作用的支配。此外,还通过 Hirshfeld 表面分析和指纹图谱对 H3LNN 晶体结构中的分子间相互作用进行了研究。Hirshfeld 表面分析表明,N-H...O 和 C-H...π 相互作用在 H3LNN 的固态结构中起着重要作用。利用 6-31G(d,p) 基集,通过 ab initio HF 和 DFT(B3LYP、B3PW91 和 BLYP)方法计算了 H3LNN 的分子结构、振动频率和红外强度。计算得出的理论几何参数与 H3LNNN 的相应单晶结构进行了比较。用 B3LYP 方法计算出的标题化合物的谐振与实验红外光谱数据十分吻合。使用 SQM 2.0 版程序通过势能分布解释了 H3LNNN 化合物的理论振动光谱。使用 PAVF 1.0 版程序计算了所用方法的性能和比例因子值。