@article{a90abde5fa97472bb8e994cf4ffbffd7,
title = "Bis-Copper(II)/π-Radical Multi-Heterospin System with Non-innocent Doubly N-Confused Dioxohexaphyrin(1.1.1.1.1.0) Ligand",
abstract = "A contracted doubly N-confused dioxohexaphyrin(1.1.1.1.1.0) complex consisting of two paramagnetic copper metals and open-shell π-radical ligand was synthesized as a new multi-heterospin motif. X-ray spectroscopy supported the divalent character of the inner copper centers, and electron paramagnetic resonance and magnetometric studies suggested the presence of unpaired d electrons strongly antiferromagnetically coupled with π-radicals delocalized on the macrocycle. The 25 π non-innocent dioxohexaphyrin ligand allowed the facile interconversion between antiaromatic 24 π and aromatic 26 π species, respectively, upon redox reactions.",
keywords = "aromaticity, copper, hexaphyrin, metal complex, redox non-innocence",
author = "Kazuhisa Yamasumi and Keiichi Nishimura and Yutaka Hisamune and Yusuke Nagae and Tomoki Uchiyama and Kazutaka Kamitani and Tomoyasu Hirai and Maiko Nishibori and Shigeki Mori and Satoru Karasawa and Tatsuhisa Kato and Ko Furukawa and Masatoshi Ishida and Hiroyuki Furuta",
note = "Funding Information: The part of work was supported by Grant-in-Aids (JP15K13646 to H.F., JP15K05663 to K. F., JP16K05700 and JP17H05377 to M.I.) from Japan Society for the Promotion of Science (JSPS). We acknowledge support from the Photon and Quantum Basic Research Coordinated Development Program from the Ministry of Education, Culture, Sports, Science and Technology, Japan. The authors also acknowledge Dr. J. Yang and Prof. T. Fujigaya (Kyushu Univ.) for their help in the XPS measurements, and Prof. A. Takahara (Kyushu Univ.) for his helpful comment. The synchrotron radiation experiment was performed at Kyushu University Beamline (BL06/SAGA-LS) with proposal number 2016IK009. The financial support from a bilateral program between JSPS and the National Research Foundation (NRF) of South Africa is also acknowledged. Publisher Copyright: {\textcopyright} 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim",
year = "2017",
month = nov,
day = "2",
doi = "10.1002/chem.201704321",
language = "English",
volume = "23",
pages = "15322--15326",
journal = "Chemistry - A European Journal",
issn = "0947-6539",
publisher = "Wiley-VCH Verlag",
number = "61",
}