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A One‐Dimensional π–d Conjugated Coordination Polymer for Sodium Storage with Catalytic Activity in Negishi Coupling
Author(s) -
Chen Yuan,
Tang Mi,
Wu Yanchao,
Su Xiaozhi,
Li Xiang,
Xu Shuaifei,
Zhuo Shuming,
Ma Jing,
Yuan Daqiang,
Wang Chengliang,
Hu Wenping
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201908274
Subject(s) - negishi coupling , conjugated system , xanes , polymer , catalysis , coordination polymer , electrochemistry , coupling reaction , absorption (acoustics) , materials science , chemistry , inorganic chemistry , crystallography , organic chemistry , spectroscopy , physics , electrode , quantum mechanics , composite material
π‐d Conjugated coordination polymers (CCPs) have attracted much attention for various applications, although the chemical states and structures of many CCPs are still blurry. Now, a one‐dimensional (1D) π‐d conjugated coordination polymer for high performance sodium‐ion batteries is presented. The chemical states of the obtained coordination polymer are clearly revealed. The electrochemical process undergoes a three‐electron reaction and the structure transforms from C=N double bonds and Ni II to C−N single bonds and Ni I , respectively. Our unintentional experiments provided visual confirmation of Ni I . The existence of Ni I was further corroborated by its X‐ray absorption near‐edge structure (XANES) and its catalytic activity in Negishi cross‐coupling.