NDLI: Two $Zn^{II}$ Metal-Organic Frameworks with Coordinatively Unsaturated Metal Sites: Structures, Adsorption, and Catalysis

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Two $Zn^{II}$ Metal-Organic Frameworks with Coordinatively Unsaturated Metal Sites: Structures, Adsorption, and Catalysis

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Two $Zn^{II}$ Metal-Organic Frameworks with Coordinatively Unsaturated Metal Sites: Structures, Adsorption, and Catalysis

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Lin, Xiao-Ming Li, Ting-Ting Wang, Yi-Wei Zhang, Li Su, Cheng-Yong
Description	Country affiliation: China Author Affiliation: Lin XM ( MOE Laboratory of Bioinorganic and Synthetic Chemistry/KLGHEI of Environment and Energy Chemistry, School of Chemistry & Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China.)
Abstract	Assembly of $Zn(NO_{3})_{2}$ with the tripodal ligand $H_{3}TCPB$ (1,3,5-tri(4-carboxyphenoxy)benzene) affords two porous isoreticular metal-organic frameworks, $[Zn_{3}(TCPB)_{2}⋅2DEF]⋅$ 3DEF (1) and $[Zn_{3}(TCPB)_{2}⋅2H_{2}O]⋅$ $2H_{2}O⋅4DMF$ (2). Single-crystal X-ray diffraction analyses reveal that 1 crystallizes in the monoclinic space group $P2_{1}/c$ and possesses a 2D network containing 1D microporous opening channels with an effective size of $3.0×2.9 Å^{2},$ whereas 2 crystallizes in the trigonal space group c1 and also possesses a 2D network containing 1D channels, with an effective aperture of $4.0×4.0 Å^{2}.$ TOPOS analysis reveals that both 1 and 2 have a (3,6)-connected network topology with the Schläfli symbol of $(4^{3}⋅6^{12})$ $(4^{3})_{2}.$ According to the variable-temperature powder X-ray diffraction patterns, the solid phase of 1 can be converted into that of 2 during a temperature-induced dynamic structural transformation, thus indicating that the framework of 2 represents the most thermally stable polymorph. Desolvated 2 exhibits highly selective adsorption behaviors toward $H_{2}/N_{2},$ $CO_{2}/N_{2},$ and $CO_{2}/CH_{4};$ furthermore, it displays size-selective catalytic activity towards carbonyl cyanosilylation and Henry (nitroaldol) reactions.
File Format	HTM / HTML
ISSN	18614728
Issue Number	12
Journal	Chemistry - An Asian Journal
Volume Number	7
e-ISSN	1861471X
Language	English
Publisher	Wiley-VCH
Publisher Date	2012-12-01
Publisher Place	Germany
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Chemistry
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Biochemistry

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