A Polyoxochromate Templated 56-Nuclei Silver Nanocluster

Zhi Wang; Lu-Ming Zheng; Marko Jagodič; Zvonko Jagličić; Hai-Feng Su; Jian-Xing Zhuang; Xing-Po Wang; Chen-Ho Tung; Di Sun

doi:10.1021/acs.inorgchem.9b03365

A Polyoxochromate Templated 56-Nuclei Silver Nanocluster

Inorg Chem. 2020 Mar 2;59(5):3004-3011. doi: 10.1021/acs.inorgchem.9b03365. Epub 2020 Feb 19.

Authors

Zhi Wang¹, Lu-Ming Zheng¹, Marko Jagodič², Zvonko Jagličić², Hai-Feng Su³, Jian-Xing Zhuang¹, Xing-Po Wang¹, Chen-Ho Tung¹, Di Sun^{1

4}

Affiliations

¹ Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, People's Republic of China.
² Faculty of Civil and Geodetic Engineering & Institute of Mathematics, Physics and Mechanics, University of Ljubljana, Jamova 2, 1000 Ljubljana, Slovenia.
³ Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China.
⁴ Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, and School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China.

PMID: 32073840
DOI: 10.1021/acs.inorgchem.9b03365

Abstract

Most of polyoxometallates (POMs) templated silver nanoclusters recorded so far are polyoxomolybdates and polyoxotungstates; however, as congeneric polyoxochromates, they are rarely observed in silver nanoclusters. Herein, a high-nuclearity polyoxochromate, (Cr^III₄Cr^VI₈O₃₆)^12-, is uncovered in a novel silver nanocluster (SD/Ag56a) as an anion template. The mixed-valent (Cr^III₄Cr^VI₈O₃₆)^12- consists of four edge-sharing Cr^IIIO₆ octahedra and eight Cr^VIO₄ tetrahedra, which are fused together by sharing one or two vertexes. The (Cr^III₄Cr^VI₈O₃₆)^12- is the by far highest nuclearity polyoxochromate and is trapped by outer Ag₅₆ bracelet-like shell coprotected by quaternary ligands including ⁱPrS^-, NapCOO^- (2-naphthalenecarboxylate), CF₃COO^-, and CH₃CN. The antiferromagnetic property and solution behavior of SD/Ag56a are discussed in detail.