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一维铜（II）-芳酰腙配位聚合物：磁性及仲醇的微波辅助氧化

1D Copper(II)-Aroylhydrazone Coordination Polymers: Magnetic Properties and Microwave Assisted Oxidation of a Secondary Alcohol.

作者信息

Sutradhar Manas, Alegria Elisabete C B A, Barman Tannistha Roy, Guedes da Silva M Fátima C, Liu Cai-Ming, Pombeiro Armando J L

机构信息

Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal.

Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, Lisbon, Portugal.

出版信息

Front Chem. 2020 Mar 6;8:157. doi: 10.3389/fchem.2020.00157. eCollection 2020.

DOI:10.3389/fchem.2020.00157
PMID:32211380
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7069101/
Abstract

The 1D Cu(II) coordination polymers [Cu(L)(NO)(HO)] () and Cu(HL)(NO)(HO) () have been synthesized using the aroylhyrazone Schiff bases , -bis(pyridin-2-ylmethylene)oxalohydrazide (HL) and , -bis(2-hydroxybenzylidene)malonohydrazide (HL), respectively. They have been characterized by elemental analysis, infrared (IR) spectroscopy, UV-Vis spectroscopy, electrospray ionization mass spectrometry (ESI-MS), single crystal X-ray diffraction and variable temperature magnetic susceptibility measurements (for ). The ligand (L) coordinates in the form in , whereas the coordination is observed for (HL) in . Either the ligand bridge or the nitrate bridge in mediates weak antiferromagnetic coupling. The catalytic performance of and has been investigated toward the solvent-free microwave-assisted oxidation of a secondary alcohol (1-phenylethanol used as model substrate). At 120°C and in the presence of the nitroxyl radical 2,2,6,6-tetramethylpiperydil-1-oxyl (TEMPO), the complete conversion of 1-phenylethanol into acetophenone occurs with TOFs up to 1,200 h.

摘要

一维铜（II）配位聚合物[Cu(L)(NO)(HO)]（）和Cu(HL)(NO)(HO)（）已分别使用芳酰腙席夫碱、-双（吡啶-2-基亚甲基）草酰肼（HL）和、-双（2-羟基苄叉）丙二酰肼（HL）合成。它们通过元素分析、红外（IR）光谱、紫外-可见光谱、电喷雾电离质谱（ESI-MS）、单晶X射线衍射和变温磁化率测量（针对）进行了表征。配体（L）在中以形式配位，而在中观察到（HL）的配位。中的配体桥或硝酸盐桥介导弱反铁磁耦合。研究了和对仲醇（以1-苯乙醇为模型底物）的无溶剂微波辅助氧化的催化性能。在120°C且存在硝酰自由基2,2,6,6-四甲基哌啶-1-氧基（TEMPO）的情况下，1-苯乙醇完全转化为苯乙酮，TOF高达1200 h。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90a3/7069101/ae8023edf27e/fchem-08-00157-g0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90a3/7069101/00d4448cf41f/fchem-08-00157-g0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90a3/7069101/eaa0281b858b/fchem-08-00157-g0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90a3/7069101/e65bd4ffeb5a/fchem-08-00157-g0001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90a3/7069101/5cbccb949f92/fchem-08-00157-g0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90a3/7069101/d12e902885f8/fchem-08-00157-g0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90a3/7069101/4a05714260d2/fchem-08-00157-g0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90a3/7069101/9383970abe15/fchem-08-00157-g0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90a3/7069101/ae8023edf27e/fchem-08-00157-g0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90a3/7069101/00d4448cf41f/fchem-08-00157-g0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90a3/7069101/eaa0281b858b/fchem-08-00157-g0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90a3/7069101/e65bd4ffeb5a/fchem-08-00157-g0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90a3/7069101/94e915ad52a0/fchem-08-00157-g0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90a3/7069101/5cbccb949f92/fchem-08-00157-g0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90a3/7069101/d12e902885f8/fchem-08-00157-g0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90a3/7069101/4a05714260d2/fchem-08-00157-g0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90a3/7069101/9383970abe15/fchem-08-00157-g0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90a3/7069101/ae8023edf27e/fchem-08-00157-g0006.jpg

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