Synthesis, Structure, and Catalytic Activity of Pd(II) Complex of Calixoxasmaragdyrin
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https://figshare.com/articles/dataset/Synthesis_Structure_and_Catalytic_Activity_of_Pd_II_Complex_of_Calixoxasmaragdyrin/2248894
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资源简介：
The
palladium(II) complex of calixoxasmaragdyrin was prepared in 80% yield
by treating the free base calixoxasmaragdyrin with PdCl2 in CH3CN at reflux temperature. The crystal structure
solved for Pd(II) calixoxasmaragdyrin indicates that the calixoxasmaragdyrin
macrocycle is highly distorted and attained a boat shaped structure.
The Pd(II) ion is coordinated to four pyrrolic nitrogens in square
planar fashion, and it is placed at ∼0.138 Å above from
the four coordinating pyrrole nitrogens plane (N1N2N3N4). The Pd–N
bond lengths are inequivalent, and the Pd(II) ion is positioned more
toward the dipyrromethane moiety of calixoxasmaragdyrin. The complex
shows one broad absorption band at 477 nm and is not very stable under
redox conditions. The Pd(II) calixoxasmaragdyrin showed good catalytic
activity in the Suzuki–Miyaura cross coupling reactions.
创建时间：
2016-02-16
