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Sokol V, Brajica L, Mišura O, Đaković M, Paut A, Prkić A, Kukovec BM. The double polymeric chain of catena-poly[(μ 2-6-bromopyridine-3-carboxylato-κ 2
O,O′) (6-bromopyridine-3-carboxylato-κ 2
O,O′) (μ 2-1,2-bis(4-pyridyl)ethylene-κ 2
N:N′)cobalt(II)], C 24H 16CoBr 2N 4O 4. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2022-0460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Abstract
C24H16CoBr2N4O4, monoclinic, P21/c (no. 14), a = 11.1134(4) Å, b = 16.1731(6) Å, c = 13.7057(5) Å, β = 105.363(4)°, V = 2375.41(16) Å3, Z = 4, R
gt(F) = 0.0588, wR
ref(F
2) = 0.1101, T = 170(2) K.
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Affiliation(s)
- Vesna Sokol
- Department of Physical Chemistry , Faculty of Chemistry and Technology, University of Split , Ruđera Boškovića 35, HR-21000 Split , Croatia
| | - Lara Brajica
- Department of Physical Chemistry , Faculty of Chemistry and Technology, University of Split , Ruđera Boškovića 35, HR-21000 Split , Croatia
| | - Ozana Mišura
- Department of Chemistry , Faculty of Science, University of Zagreb , Horvatovac 102a, HR-10000 Zagreb , Croatia
| | - Marijana Đaković
- Department of Chemistry , Faculty of Science, University of Zagreb , Horvatovac 102a, HR-10000 Zagreb , Croatia
| | - Andrea Paut
- Department of Analytical Chemistry , Faculty of Chemistry and Technology, University of Split , Ruđera Boškovića 35, HR-21000 Split , Croatia
| | - Ante Prkić
- Department of Analytical Chemistry , Faculty of Chemistry and Technology, University of Split , Ruđera Boškovića 35, HR-21000 Split , Croatia
| | - Boris-Marko Kukovec
- Department of Physical Chemistry , Faculty of Chemistry and Technology, University of Split , Ruđera Boškovića 35, HR-21000 Split , Croatia
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Structural and Electrochemical Studies of Cobalt(II) and Nickel(II) Coordination Polymers with 6-Oxonicotinate and 4,4′-Bipyridine. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9120352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The 6-oxonicotinate (6-Onic) salts of a one-dimensional cationic cobalt(II) or nickel(II) coordination polymers with 4,4′-bipyridine (4,4′-bpy), namely {[Co(4,4′-bpy)(H2O)4](6-Onic)2·2H2O}n (1) and {[Ni(4,4′-bpy)(H2O)4](6-Onic)2·2H2O}n (2), were prepared hydrothermally by reactions of cobalt(II) nitrate hexahydrate or nickel(II) nitrate hexahydrate, respectively, 6-hydroxynicotinic acid and 4,4′-bipyridine in a mixture of ethanol and water. In the hydrogen-bonded frameworks of 1 and 2, the one-dimensional polymeric chains of {[M(4,4′-bpy)(H2O)4]2+}n (M = Co, Ni), the 6-oxonicotinate anions and the lattice water molecules were assembled via strong intermolecular O–H···O and N–H···O hydrogen bonds and π–π interactions, leading to the formation of the representative hydrogen-bond ring motifs: trimeric R23(10) motif, the centrosymmetric tetrameric R24(8) and R24(12) motifs and the pentameric R45(12) motif. The isostructural coordination polymers 1 and 2 exhibited a different electrochemical behavior, as observed by cyclic voltammetry, which can be attributed to the nature of the metal ions (cobalt(II) vs. nickel(II)).
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