Stabilization of the Anionic Metalloligand, Ag-6(mna)(6)](6-) (H(2)mna=2-Mercapto Nicotinic Acid), in cor, alpha-Po, and sql Nets Employing Alkaline Earth Metal Ions: Synthesis, Structure, and Nitroaromatics Sensing Behavior

Jana, Ajay Kumar and Kundu, Tanaya and Natarajan, Srinivasan (2016) Stabilization of the Anionic Metalloligand, Ag-6(mna)(6)](6-) (H(2)mna=2-Mercapto Nicotinic Acid), in cor, alpha-Po, and sql Nets Employing Alkaline Earth Metal Ions: Synthesis, Structure, and Nitroaromatics Sensing Behavior. In: CRYSTAL GROWTH & DESIGN, 16 (6). pp. 3497-3509.

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Abstract

Three new heterometallic metal organic frameworks, {Ca-6(H2O)(18)]Ag-6(mna)(6)](2)}center dotAg-6(Hmna)(6)]center dot 20H(2)O], 1, {Sr-3(H2O)(10)]Ag-6(mna)(6)]center dot 12H(2)O}, 2, and {Ba-3(H2O)(10)]Ag-6(mna)(6)]center dot 8H(2)O}, 3, have been synthesized following hard-soft acids-bases principle. Compounds 1 and 2 have three-dimensional structures with cor and pcu (alpha-Po) topology, whereas compound 3 has a two-dimensional sql topology. Smaller calcium and strontium ions form a simple dimer (Ca2/Sr2, 1/2) and tetramer units (Sr4, 2), whereas the larger barium ion forms infinite Ba-O-Ba chains. The presence of the electron-rich mna ligand in all the compounds paved the way for the detection of electron-deficient hazardous nitroaromatics employing photoluminescence quenching methods. The luminescence intensities of the compounds are strongly quenched by picric acid, p-nitro phenol, and 2-nitro toluene at low concentration, which indicates that these compounds are excellent materials for the detection of these nitroaromatics in solution.

Item Type:	Journal Article
Publication:	CRYSTAL GROWTH & DESIGN
Publisher:	AMER CHEMICAL SOC
Additional Information:	Copy right for this article belongs to the AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	08 Jul 2016 05:26
Last Modified:	08 Jul 2016 05:26
URI:	http://eprints.iisc.ac.in/id/eprint/54137

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