Citation: Xiao-Peng HU, Zhi-Feng WANG, Shu-Yan YU. Palladium-Based Coordination "Clips" with Carboxamide-Pyrazolate Ditopic Ligands: Self-Assembly and Catalytic Properties[J]. Chinese Journal of Inorganic Chemistry, ;2021, 37(8): 1493-1503. doi: 10.11862/CJIC.2021.159 shu

Palladium-Based Coordination "Clips" with Carboxamide-Pyrazolate Ditopic Ligands: Self-Assembly and Catalytic Properties

Laboratory for Self-Assembly Chemistry, Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Environment and Life, Beijing University of Technology, Beijing 100124, China

Corresponding author: Shu-Yan YU, selfassembly@bjut.edu.cn
Received Date: 6 March 2021
Revised Date: 9 May 2021

Figures(6)

Two dipalladium complexes[(bpy) ₂Pd₂(NO₃)₂](NO₃)₂, [(dmbpy) ₂Pd₂(NO₃)₂](NO₃) 2 (bpy=2, 2-bipyridine, dmbpy=4, 4'-dimethyl-2, 2-bipyridine) were used as "clips" to coordinate with ditopic pyrazolate ligands (HL¹, HL²), leading to the formation of[Pd₂L₂]^2--type dinuclear coordination "clips" with strong intramolecular Pd(Ⅱ) …Pd(Ⅱ) bonding interaction through a spontaneous deprotonation of the pyrazole ligands in aqueous solution. Such well-defined complexes C1~C4 have been characterized by single-crystal X-ray diffraction analysis, elemental analysis, ¹H and ¹³C NMR, electrospray ionization mass spectrometry (ESI-MS) and IR spectroscopy. Furthermore, all these clip-like dipalladium(Ⅱ) complexes exhibited highly catalytic activities towards Suzuki-coupling reaction under mild conditions.
- self-assembly,
- dipalladium(Ⅱ) "clips",
- catalysis,
- Suzuki-coupling reaction
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