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Title: Luminescent metal organic frameworks for sensing and gas adsorption studies
Authors: Verma P.
Singh U.P.
Butcher R.J.
Published in: CrystEngComm
Abstract: Two three-dimensional metal organic frameworks (MOFs) with a 5,5′,5′′-(2,4,6-trimethyl-1,3,5-phenylene)tris(methylene)tris(azanediyl)triisophthalic acid (H6L) ligand, viz., {[Zn4(L)1/3(H2O)4]6+[S]}n (LZn) and {[NaCd2(L)(DMF)3]-·(Me2NH2+)(3DMF)}n (LCd), where the S in LZn denotes a squeezed anion and solvent molecules and DMF denotes dimethylformamide, were synthesized under solvothermal conditions. LZn is a porous compound that contains paddle wheel binuclear [Zn2(COO)4 and Zn2(COO)3] secondary building units (SBUs), while LCd is an intrapenetrating MOF with Cd2Na trinuclear SBUs. The sensing results showed that both MOFs act as selective sensors towards nitrophenolic explosives, i.e., nitrophenol (NP), dinitrophenol (DNP), and trinitrophenol (TNP). Furthermore, LCd exhibited behavior that is typical of an ultramicroporous material and selectively adsorbed CO2, while N2 molecules were adsorbed only on its surface. By contrast, LZn showed selectivity towards N2 molecules at 77 K. © 2019 The Royal Society of Chemistry.
Citation: CrystEngComm (2019), 21(36): 5470-5481
Issue Date: 2019
Publisher: Royal Society of Chemistry
ISSN: 14668033
Author Scopus IDs: 56212133800
Author Affiliations: Verma, P., Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247667, India
Singh, U.P., Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247667, India
Butcher, R.J., Department of Chemistry, Howard University, Washington, DC 20059, United States
Funding Details: The authors are grateful to the BRNS (DAE), Mumbai, India for financial assistance. P. Verma gratefully acknowledges IIT Roorkee for the MHRD fellowship. We thank Prof. Paritosh Mohanty, Department of Chemistry, IIT Roorkee, for the gas adsorption study.
Corresponding Author: Singh, U.P.; Department of Chemistry, Indian Institute of Technology RoorkeeIndia; email:
Appears in Collections:Journal Publications [CY]

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