Self-assembly of copper and cobalt complexes with hierarchical size and catalytic properties for hydroxylation of phenol

We present the size controllable synthesis of two series of hierarchical microscale coordination polymers using a simple method under mild conditions

Huaze Dong; Wenbo Tao; Jianhong Bi; Victoria Milway; Zhiqiang Xu; Shengyi Zhang; Xiangchun Meng; Wentao Bi; Jian Li; Meng Li


Scholarcy highlights

  • Within the large family of materials science, nano- and microscale materials are of particular interest for their potential applications in many areas
  • The catalytic activities of the crystalline microscale coordination polymers were investigated in the hydroxylation of phenol
  • The MCPs were prepared by the stoichiometric reaction of CuSO4/ CoSO4 with 1,10-phenanthroline in mixed solution(C2O4), followed by reaction with a highly dilute solution of sodium oxalate for different reaction times to achieve the series of products named MCPs
  • Structural characterization of copper and cobalt compounds The crystal structure of MCPs-1 with the CCDC number 667029 demonstrates that the copper complex has a mononuclear motif, where each Cu ion is bound by two O atoms from one oxalate anion, one water molecule and two N atoms from one 1,10-phenanthroline, in a slightly distorted square pyramidal coordination geometry
  • It is worth noting that hydrogen bonds and pi-pi stacking interactions play key roles in the fast formation of the hierarchical MCPs-1
  • The third sample underwent 6-h crystallization time, the rods became macroscale and single crystals suitable for single crystal X-ray diffraction study were obtained after 1 week at room temperature
  • Nano rods nano-Co micro-Co macro-Co Simulated form of Cu complex

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