TY - JOUR
T1 - Copper 1,19-Diaza-21,24-dicarbacorrole
T2 - A Corrole Analogue with an N−N Linkage Stabilizes a Ground-State Singlet Organocopper Species
AU - Basumatary, Biju
AU - Hashiguchi, Ikuho
AU - Mori, Shigeki
AU - Shimizu, Soji
AU - Ishida, Masatoshi
AU - Furuta, Hiroyuki
N1 - Funding Information:
This work was supported by Grants‐in‐Aid for Scientific Research (JP19K05439, JP19H04586, JP20H00406) from the Japan Society for the Promotion of Science (JSPS) and the Tokuyama Science Foundation. B.B. thanks the JSPS for a research fellowship (JP18F18331). We thank Dr. H. Kusaba and Prof. T. Ishihara for their discussion about XPS measurements.
Publisher Copyright:
© 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2020/9/7
Y1 - 2020/9/7
N2 - A copper complex of a heterocorrole analogue with an N–N linkage, 1,19-diaza-21,24-dicarbadibenzocorrole (Cu-5), was successfully synthesized via oxidative metalation–cyclization of a tetrapyrrolic precursor. The N–N linkage in the skeleton of Cu-5, which serves as a mediator of π-electron delocalization, features an 18π aromatic system. The electronic structure of Cu-5 is best described as a ground-state singlet species stabilized by the distinct NNCC coordination core. This finding shows how the ligand's design can be used to modulate the Cu (Formula presented.) orbital energy, thereby making such compounds invaluable for copper-based catalytic applications.
AB - A copper complex of a heterocorrole analogue with an N–N linkage, 1,19-diaza-21,24-dicarbadibenzocorrole (Cu-5), was successfully synthesized via oxidative metalation–cyclization of a tetrapyrrolic precursor. The N–N linkage in the skeleton of Cu-5, which serves as a mediator of π-electron delocalization, features an 18π aromatic system. The electronic structure of Cu-5 is best described as a ground-state singlet species stabilized by the distinct NNCC coordination core. This finding shows how the ligand's design can be used to modulate the Cu (Formula presented.) orbital energy, thereby making such compounds invaluable for copper-based catalytic applications.
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U2 - 10.1002/anie.202005167
DO - 10.1002/anie.202005167
M3 - Article
C2 - 32449826
AN - SCOPUS:85087178301
VL - 59
SP - 15897
EP - 15901
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
SN - 1433-7851
IS - 37
ER -