[Cu3(C6Se6)] n : The First Highly Conductive 2D π-d Conjugated Coordination Polymer Based on Benzenehexaselenolate

Yutao Cui; Jie Yan; Zhijun Chen; Jiajia Zhang; Ye Zou; Yimeng Sun; Wei Xu; Daoben Zhu

doi:10.1002/advs.201802235

[Cu₃(C₆Se₆)] _n : The First Highly Conductive 2D π-d Conjugated Coordination Polymer Based on Benzenehexaselenolate

Adv Sci (Weinh). 2019 Mar 9;6(9):1802235. doi: 10.1002/advs.201802235. eCollection 2019 May 3.

Authors

Yutao Cui^{1

2}, Jie Yan^{1

2}, Zhijun Chen^{1

2}, Jiajia Zhang^{1

2}, Ye Zou^{1

2}, Yimeng Sun^{1

2}, Wei Xu^{1

2}, Daoben Zhu^{1

2}

Affiliations

¹ Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China.
² School of Chemistry Science University of Chinese Academy of Sciences Beijing 100049 China.

Abstract

Nanocrystals of a 2D π-d conjugated copper bis(diselenolene) coordination polymer (Cu-BHS, BHS = benzenehexaselenolate) are synthesized via a simple homogeneous reaction between cupric ions and benzenehexaselenol (H₆BHS). Its 2D extended hexagonal lattice is confirmed by powder X-ray diffraction, and further characterized by scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy. The electrical conductivity measured on compressed powder sample reaches 110 S cm^-1 at 300 K, which is among the highest value ever reported for coordination polymers. Furthermore, the intrinsic metallic characteristics of Cu-BHS are confirmed by ultraviolet photoelectron spectroscopy and band structure calculation.

Keywords: benzenehexaselenol; copper bis(diselenolene); electrical conduction; π–d conjugated coordination polymers.