Majumdar, Dhrubajyoti and Babu, Surendra MS and Das, Sourav and Mohapatra, Chandrajeet and Biswas, Jayanta Kumar and Mondal, Monojit (2017) Syntheses, X-ray Crystal Structures, Photoluminescence Properties, Antimicrobial Activities and Hirshfeld Surface of Two New Cd(II) Azide/Thiocyanate Linked Coordination Polymers. In: CHEMISTRYSELECT, 2 (17). pp. 4811-4822.
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The reaction of cadmium(II) acetate salts with multisite coordinated compartmental Schiff base ligand N,N'-Bis(3-methoxysalicylidenimino)-1,3-diaminopropane (H2L1) in presence of co-lingand azido/thiocyanato afforded two new coordination polymers {Cd-4(N-3)(4)(L-1)(2)]H2O}(n) (1), Cd-4(SCN)(4)(L-1)(2)](n) (2). The obtained compounds, 1 and 2 are 1D and 2D coordination polymers respectively and they have been characterized by IR spectroscopy, UV-vis spectroscopy, elemental analysis, and single-crystal X-ray diffraction. The variation in the extended forms of 1 and 2 is governed by the kind of co-ligands utilized in the reaction. The complete structural study reveals that, in both cases the fully deprotonated ligand L-1](2-) has utilized all six potential coordination sites to hold a pair of Cd(II) ions. Moreover, N-3](-) in 1 is coordinating to metal atom by both trans end-to-end (EE mu-1,3) and end-on (EO or mu-1,1) mode and SCN](-) is showing only end-to-end (EE mu-1,3) coordination mode in 2. The photo luminescent properties and antimicrobial activities of the compounds 1 and 2 were investigated and discussed in details. Upon irradiation with UV light Cd(II) polymeric compounds 1-2 exhibit deep blue emissions of 448-451 nm subjected to dimethyl sulfoxide solution due to pi ->pi* intraligand fluorescence. Apart from, as a complementary revelation, intermolecular interactions with respect to percentages of hydrogen bonding in the crystal structures of two Cd(II) polymeric compounds were quantified by Hirshfeld surface and fingerprint plots analysis.
| Item Type: | Journal Article |
|---|---|
| Publication: | CHEMISTRYSELECT |
| Additional Information: | Copy right for this article belongs to the WILEY-V C H VERLAG GMBH, POSTFACH 101161, 69451 WEINHEIM, GERMANY |
| Department/Centre: | Division of Chemical Sciences > Solid State & Structural Chemistry Unit |
| Date Deposited: | 14 Jul 2017 10:33 |
| Last Modified: | 21 Feb 2019 11:50 |
| URI: | http://eprints.iisc.ac.in/id/eprint/57389 |
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