Unusual oxidation of an N-heterocycle ligand in a metal-organic framework.
An in situ ligand reaction from the pyridine cycle to -COO- in the copper-organic framework is achieved under hydrothermal conditions. Compound [Cu2(bpa)4] [1; bpa=5-(4-bromophenyl)picolinic acid] exhibits a one-dimensional chain architecture based on weak Cu-O interactions. The mechanism of ligand transformation is discussed.
Han
Zhangang
Z
Key Laboratory of Polyoxometalate Science of Ministry of Education, Institute of Polyoxometalate Chemistry, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China.
Zhao
Yulong
Y
Peng
Jun
J
Gómez-García
Carlos J
CJ