title: A Sr2+-metal-organic framework with high chemical stability: synthesis, crystal structure and photoluminescence property.
abstract: Metal-organic frameworks (MOFs) are typically built by assembly of metal centres and organic linkers, and have emerged as promising crystalline materials in a variety of fields. However, the stability of MOFs is a key limitation for their practical applications. Herein, we report a novel Sr 2+: -MOF [Sr4(Tdada)2(H2O)3(DMF)2] (denoted as NKU- 105: , NKU = Nankai University; H4Tdada = 5,5'-((thiophene-2,5-dicar bonyl)bis(azanediyl))diisophthalic acid; DMF = N,N-dimethylformamide) featuring an open square channel of about 6 Å along the c-axis. Notably, NKU- 105: exhibits much outstanding chemical stability against common organic solvents, boiling water, acids and bases, relative to most MOF materials. Furthermore, NKU- 105: is an environment-friendly luminescent material with a bright cyan emission.This article is part of the themed issue 'Coordination polymers and metal-organic frameworks: materials by design'.
authors.affiliation: State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Nankai University, Tianjin 300071, Peoples' Republic of China.
authors.forename: Yan-Yuan
authors.initials: YY
authors.lastname: Jia
authors.affiliation: School of Materials Science and Engineering, National Institute for Advanced Materials, Tianjin Key Laboratory of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin 300350, Peoples' Republic of China.
authors.forename: Xiao-Ting
authors.initials: XT
authors.lastname: Liu
authors.affiliation: School of Materials Science and Engineering, National Institute for Advanced Materials, Tianjin Key Laboratory of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin 300350, Peoples' Republic of China.
authors.forename: Wen-He
authors.initials: WH
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Nankai University, Tianjin 300071, Peoples' Republic of China.
authors.forename: Li-Zhu
authors.initials: LZ
authors.lastname: Zhang
authors.affiliation: School of Materials Science and Engineering, National Institute for Advanced Materials, Tianjin Key Laboratory of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin 300350, Peoples' Republic of China zhangyhi@nankai.edu.cn.
authors.forename: Ying-Hui
authors.identifier: http://orcid.org/0000-0002-4516-9972
authors.initials: YH
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Nankai University, Tianjin 300071, Peoples' Republic of China buxh@nankai.edu.cn.|School of Materials Science and Engineering, National Institute for Advanced Materials, Tianjin Key Laboratory of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin 300350, Peoples' Republic of China.
authors.forename: Xian-He
authors.initials: XH
authors.lastname: Bu
keywords: chemical stability; metal–organic frameworks; photoluminescence property