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Issue 3, 2011
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pH-Triggered construction of NLO active CMOFs: change in supramolecular assembly, water clusters, helical architectures and their properties

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Abstract

Two different chiral metal–organic frameworks (CMOF), namely, {[Cu2(1,10-phen)2(tartrate)H2O]·8H2O}n (1) and {[Cu(1,10-phen)(H2tartrate)H2O]·6H2O}n (2) [1,10-phen = 1,10-phenanthroline] have been synthesized with an alteration in the pH of the reaction media. Reflux at 85 °C, complex 1 (pH = 4.95) crystallizes in P21, while simple stirring at room temperature, complex 2 (pH = 4.10) crystallizes in P212121 space group. When the solid-state structure of 1 is compared with complex 2, interesting changes in the supramolecular self-assembly are noticed. CMOF 1 features a 1D supramolecular coordination polymer, in stark contrast, CMOF 2 features 1D coordination polymer. We reveal one helicalassembly in 1 whereas three helicalassembly in 2. The CMOFs exhibit solid-state blue luminescence at room temperature and non-linear optical (NLO) activity.

Graphical abstract: pH-Triggered construction of NLO active CMOFs: change in supramolecular assembly, water clusters, helical architectures and their properties

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Publication details

The article was received on 06 Aug 2010, accepted on 29 Sep 2010 and first published on 28 Oct 2010


Article type: Paper
DOI: 10.1039/C0CE00505C
Citation: CrystEngComm, 2011,13, 1018-1028
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    pH-Triggered construction of NLO active CMOFs: change in supramolecular assembly, water clusters, helical architectures and their properties

    R. Saha, S. Biswas and G. Mostafa, CrystEngComm, 2011, 13, 1018
    DOI: 10.1039/C0CE00505C

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