A novel one-dimensional double-chain-like ZnII coordination polymer: poly[bis(1-benzyl-1H-imidazole-κN3)tris(μ-cyanido-κ2C:N)(cyanido-κC)disilver(I)zinc(II)]

Pattiya Krinchampa; Kittipong Chainok; Siriporn Phengthaisong; Sujittra Youngme; Filip Kielar; Nanthawat Wannarit

doi:10.1107/S2053229616017502

A novel one-dimensional double-chain-like Zn^II coordination polymer: poly[bis(1-benzyl-1H-imidazole-κN³)tris(μ-cyanido-κ²C:N)(cyanido-κC)disilver(I)zinc(II)]

Acta Crystallogr C Struct Chem. 2016 Dec 1;72(Pt 12):960-965. doi: 10.1107/S2053229616017502. Epub 2016 Nov 7.

Authors

Pattiya Krinchampa¹, Kittipong Chainok², Siriporn Phengthaisong³, Sujittra Youngme³, Filip Kielar⁴, Nanthawat Wannarit¹

Affiliations

¹ Department of Chemistry, Faculty of Science and Technology, Thammasat University, Pathumthani 12121, Thailand.
² Department of Physics, Faculty of Science and Technology, Thammasat University, Pathumthani 12121, Thailand.
³ Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.
⁴ Department of Chemistry, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand.

PMID: 27918297
DOI: 10.1107/S2053229616017502

Abstract

One of most interesting systems of coordination polymers constructed from the first-row transition metals is the porous Zn^II coordination polymer system, but the numbers of such polymers containing N-donor linkers are still limited. The title double-chain-like Zn^II coordination polymer, [Ag₂Zn(CN)₄(C₁₀H₁₀N₂)₂]_n, presents a one-dimensional linear coordination polymer structure in which Zn^II ions are linked by bridging anionic dicyanidoargentate(I) units along the crystallographic b axis and each Zn^II ion is additionally coordinated by a terminal dicyanidoargentate(I) unit and two terminal 1-benzyl-1H-imidazole (BZI) ligands, giving a five-coordinated Zn^II ion. Interestingly, there are strong intermolecular Ag^I...Ag^I interactions between terminal and bridging dicyanidoargentate(I) units and C-H...π interactions between the phenyl rings of BZI ligands of adjacent one-dimensional linear chains, providing a one-dimensional linear double-chain-like structure. The supramolecular three-dimensional framework is stabilized by C-H...π interactions between the phenyl rings of BZI ligands and by Ag^I...Ag^I interactions between adjacent double chains. The photoluminescence properties have been studied.

Keywords: argentophilic interactions; crystal structure; one-dimensional double-chain structure; photoluminescence; zinc(II) coordination polymer.