A mixed-valent metal–organic ladder linked by pyrazine. (16th October 2020)

• Record Type: Journal Article
• Authors: Otake, Ken-ichi; Otsubo, Kazuya; Kitagawa, Hiroshi
• Is Part Of: Journal of physics. Volume 33:Number 3(2021)
• Publication Date: 2020-10-16
• Subjects: coordination polymer -- mixed valency -- ladder -- platinum complex; Condensed matter -- Periodicals; Matière condensée -- Périodiques; Vaste stoffen; Vloeistoffen; Natuurkunde; Electronic journals; Computer network resources; 530.4105
• DOI: 10.1088/1361-648X/abbbc7
• Languages: English
• ISSNs: 0953-8984

Abstract

Abstract: We report the synthesis, characterization, and electronic state of a novel mixed-valent metal–organic ladder (MOL) linked by pyrazine (pz). Single-crystal x-ray studies revealed that the MOL has a two-legged ladder-shaped framework, which is composed of a pz-connected Pt dimer with bridging Br ions. The electronic state of the MOL was investigated using x-ray and spectroscopic techniques; the MOL was found to have an electronic state that corresponds to the mixed-valence state of Pt II and Pt IV . Furthermore, the intervalence charge transfer energy of the MOL has lower than that expected from the tendency of a similar halogen-bridged mixed-valence MOL owing to its unique 'zig-zag'-shaped legs. These results provide a new insight into the physical and electronic properties of MOL systems.