Abstract
The copper coordination complex [CuCl(2-OHNA)H2O]·H2O (1) was synthesized by the reaction of CuCl2·2H2O with in situ generated 2-hydroxynicotinic acid and its crystal structure was determined by single X-ray diffraction methods. It was further characterized by FT-IR spectroscopy, elemental analyses, and thermogravimetric analysis. Complex 1 crystallizes in monoclinic space group P21/c with a = 8.9797(13), b = 14.196(2), c = 7.0738(11) Å, β = 96.897(2), V = 895.2(2) Å3, Mr = 273.12, Dc = 2.027 g/cm3, and Z = 4. In the structure, complex 1 is linked into 2D sheets via intermolecular hydrogen bonding [N1–H1···O2 (−x+1, y − 1/2, − z+1/2); O5–H10···O2 (− x+1, y + 1/2, − z+1/2); O4–H9···O5 (x, y − 1, z); O4–H8···O5 (− x+2, y + 1, − z)]. The catalytic property of 1 was also investigated in the selective oxidation of benzyl-alkanes using TBHP as oxidant. Under optimized conditions, 1 exhibited high catalytic activity and selectivity toward the corresponding aryl ketones.
Graphic Abstract
The copper coordination complex [CuCl(2-OHNA)H2O]·H2O (1) was synthesized by the reaction of CuCl2·2H2O with in situ generated 2-hydroxynicotinic acid and the catalytic property of 1 was also investigated in the selective oxidation of benzyl-alkanes using TBHP as oxidant.
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Acknowledgements
This work was financially supported by the Natural Science Foundation of Shandong Province (ZR2017LB002) and project (2018HX207), Taian Municipal Science and Technology Project (2015GX2057) and the Talent Introduction Project of Taishan University (Y2015-1-009).
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Wu, RT., Li, JK., Wei, CP. et al. Synthesis, Crystal Structure, and Catalytic Property of a Copper Coordination Compound Based on In Situ Generated 2-Hydroxynicotinic Acid. J Chem Crystallogr 50, 234–240 (2020). https://doi.org/10.1007/s10870-019-00818-0
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DOI: https://doi.org/10.1007/s10870-019-00818-0