34 research outputs found
Prophylactic clip closure for mucosal defects is associated with reduced adverse events after colorectal endoscopic submucosal dissection: a propensity-score matching analysis
博士(医学)乙日本医科大学202
Ni(II) 10-Boracorrole: An Antiaromatic Porphyrinoid Containing a Boron Atom at the meso-Position
Synthesis of Free-Base 10-Azacorroles
A novel
synthetic protocol has been developed for free-base 10-azacorroles.
Ni(0)-mediated homocoupling of nitrogen-bridged bisdipyrrin Zn(II)
complexes afforded a series of free-base 5,15-diaryl-10-azacorroles
in good yields. Pd(II) and Cu(II) complexes have been prepared through
metalation of free-base 10-azacorroles. Optical and electrochemical
properties of 10-azacorrole metal complexes can be tuned by <i>meso</i>-aryl substituents and central metals. Cyclic voltammetry
and theoretical calculations elucidated that the central metals of
10-azacorroles significantly affected their electronic properties