A new one-dimensional 3D supramolecular coordination polymer of CdII based on pyrazine and 3-nitropththalic acid: Synthesis, characterization, crystal structure, thermal analysis. Issue 1 (2nd January 2018)

• Record Type: Journal Article
• Authors: Amani, Ahmad; Derikvand, Zohreh; Dusek, Michal; Eigner, Vaclav; Azadbakht, Azadeh
• Is Part Of: Inorganic and nano-metal chemistry. Volume 48:Issue 1(2018)
• Page Start: 74
• Page End: 79
• Publication Date: 2018-01-02
• Subjects: 3-Nitrophthalic acid -- coordination polymer -- crystal structure -- pyrazine; Inorganic compounds -- Synthesis -- Periodicals; Nanostructured materials -- Periodicals; Reactivity (Chemistry) -- Periodicals; Inorganic compounds -- Synthesis; Nanostructured materials; Reactivity (Chemistry); Periodicals; 546
• DOI: 10.1080/24701556.2017.1357634
• Languages: English
• ISSNs: 2470-1556

Abstract

ABSTRACT: A one-dimensional coordination polymer of Cd II based on pyrazine (pz) and 3-nitrophthalic acid (3-nphaH2 ), namely poly[[diaqua bis(3-nitro-2-carboxylato-1-carboxylic acid)(µ2 -pyrazine) cadmium(II)]dihydrate], {[Cd(3-nphaH)2 (pz)(H2 O)2 ]. 2H2 O}n, was prepared and characterized. The asymmetric unit consists of one Cd II center, two (3-nphaH) – anions, two halves of two crystallographically distinct pz ligands, two coordinated and two uncoordinated water molecules. The Cd II cation is surrounded by four oxygen atoms from two (3-nphaH) – and two water molecules as well as two nitrogen atoms from two pz ligands in distorted octahedral geometry. Complicated hydrogen bonding network accompanied with N–O···π and C–O···π stacking interactions leads to formation of a 3D supramolecular network. Commonly, this kind of C–O–π and N–O···π interaction is detected in electron-rich CO/NO groups of (3-nphaH) – ligand and electron-deficient π-system of pyrazine.