期刊
INORGANICA CHIMICA ACTA
卷 487, 期 -, 页码 424-432出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ica.2018.12.055
关键词
Mn(II) polymer; Supramolecular assembly; Layered structure; 3D network; Channels
资金
- University Grants Commission (UGC), New Delhi [42-377/2013]
- MINECO of Spain (FEDER funds) [CTQ2017-85821-R]
Two new Mn(II) coordination polymers viz. [Mn(p-NBz)(2) (4-CNpy)(2)](n) (1) and [Mn(4-CNpy)(2)(H2BTC)(2)](n) (2) [p-NBz = p-nitrobenzoate, H3BTC = 1,3,5-benzenetricarboxylic acid and 4-CNpy = 4-cyanopyridine] have been synthesized at room temperature and characterized by single crystal X-ray diffraction, FT-IR spectroscopy, electronic spectroscopy, elemental analyses and thermogravimetric analysis (TGA). The complexes are stabilized by several non-covalent interactions along with a rather uncommon nitrile(pi)-nitrile(pi) interactions resulting in layered structures. The supramolecular association in both the polymers results in 3D network structures involving C-H center dot center dot center dot O interactions in the direction perpendicular to the existing layers. The anti-parallel CN center dot center dot center dot CN interaction observed in the polymeric chains of the complexes are studied using DFT calculations and characterized using the Bader's theory of atoms-in-molecules. The interaction energy of the anti-parallel nitrile-nitrile interactions is similar to hydrogen bonds which are enhanced by the coordination of 4-CNpy to the Mn(II) metal centre.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据