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Supramolecular networks derived from hexacyanoferrates and nitrogen heterocyclic cations

Supramolecular networks derived from hexacyanoferrates and nitrogen heterocyclic cations
Supramolecular networks derived from hexacyanoferrates and nitrogen heterocyclic cations
Eight novel supramolecular frameworks (bpyH2)2[Fe(CN)6]·2H2O (1), (bpyH2)(H3O)[Fe(CN)6] (2), (bpeH2)(H3O)[Fe(CN)5(CNH)]·H2O (3), (bpeH2)(H5O2)[Fe(CN)6]·2H2O (4), (dabcoH2)(H3O)[Fe(CN)6]·2H2O (5), (ampyH2)2[Fe(CN)6]·2H2O (6), (tptzH3)2[Fe(CN)4(CNH)2]3·10H2O (7), and (tptzH3)[Fe(CN)6]·3H2O (8) (where bpy = 4,4′-bipyridine, bpe = 1,2-bis(4-pyridyl)ethylene, dabco = 1,4-diazabicyclo[2.2.2]octane, ampy = 4-aminomethylpyridine, tptz = tris(4-pyridyl)triazine) have been synthesized by the reaction of the nitrogen heterocycle with ferrocyanide or ferricyanide salts, under mild conditions. The supramolecular structures are constructed mainly by cooperative hydrogen bonding between the inorganic anions, the organic cations and oxoniums or lattice water molecules. There are some characteristic features that can separate the compounds in groups. Those are (a) increase of H-bonding ability by formation of supramolecular complexes, (b) formation of hydro- and dihydro-hexacyanoferrates and (c) the participation of the cationic heterocycle as constituent of the structure or as a guest. The structures are additionally discussed in terms of topology.
Crystal engineering, Hexacyanoferrates, Nitrogen heterocycles, Organic cations, Supramolecular networks
0277-5387
341-357
Xydias, Pantelis
3b7c4d95-10de-4771-a1be-9a2b13436de1
Lymperopoulou, Smaragda
8a5b1800-8ead-44f6-91ce-5ec6e0f12abd
Dokorou, Vasiliki
36f8e0dc-d915-4ad4-86dc-902221df8f8f
Manos, Manolis
8cab38a5-a120-482f-a8cc-900eb1c26ac2
Plakatouras, John C.
60eeb53f-491a-44e9-ac12-33b61abb2635
Xydias, Pantelis
3b7c4d95-10de-4771-a1be-9a2b13436de1
Lymperopoulou, Smaragda
8a5b1800-8ead-44f6-91ce-5ec6e0f12abd
Dokorou, Vasiliki
36f8e0dc-d915-4ad4-86dc-902221df8f8f
Manos, Manolis
8cab38a5-a120-482f-a8cc-900eb1c26ac2
Plakatouras, John C.
60eeb53f-491a-44e9-ac12-33b61abb2635

Xydias, Pantelis, Lymperopoulou, Smaragda, Dokorou, Vasiliki, Manos, Manolis and Plakatouras, John C. (2019) Supramolecular networks derived from hexacyanoferrates and nitrogen heterocyclic cations. Polyhedron, 157, 341-357. (doi:10.1016/j.poly.2018.10.029).

Record type: Article

Abstract

Eight novel supramolecular frameworks (bpyH2)2[Fe(CN)6]·2H2O (1), (bpyH2)(H3O)[Fe(CN)6] (2), (bpeH2)(H3O)[Fe(CN)5(CNH)]·H2O (3), (bpeH2)(H5O2)[Fe(CN)6]·2H2O (4), (dabcoH2)(H3O)[Fe(CN)6]·2H2O (5), (ampyH2)2[Fe(CN)6]·2H2O (6), (tptzH3)2[Fe(CN)4(CNH)2]3·10H2O (7), and (tptzH3)[Fe(CN)6]·3H2O (8) (where bpy = 4,4′-bipyridine, bpe = 1,2-bis(4-pyridyl)ethylene, dabco = 1,4-diazabicyclo[2.2.2]octane, ampy = 4-aminomethylpyridine, tptz = tris(4-pyridyl)triazine) have been synthesized by the reaction of the nitrogen heterocycle with ferrocyanide or ferricyanide salts, under mild conditions. The supramolecular structures are constructed mainly by cooperative hydrogen bonding between the inorganic anions, the organic cations and oxoniums or lattice water molecules. There are some characteristic features that can separate the compounds in groups. Those are (a) increase of H-bonding ability by formation of supramolecular complexes, (b) formation of hydro- and dihydro-hexacyanoferrates and (c) the participation of the cationic heterocycle as constituent of the structure or as a guest. The structures are additionally discussed in terms of topology.

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Revised Polyhedron MS - Accepted Manuscript
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Accepted/In Press date: 9 October 2018
e-pub ahead of print date: 14 October 2018
Published date: 1 January 2019
Keywords: Crystal engineering, Hexacyanoferrates, Nitrogen heterocycles, Organic cations, Supramolecular networks

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Local EPrints ID: 426484
URI: http://eprints.soton.ac.uk/id/eprint/426484
ISSN: 0277-5387
PURE UUID: 34d8e43d-c294-4f4e-9271-c12100599ce9
ORCID for Smaragda Lymperopoulou: ORCID iD orcid.org/0000-0001-7871-4159

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Date deposited: 28 Nov 2018 17:30
Last modified: 07 Oct 2020 05:57

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Contributors

Author: Pantelis Xydias
Author: Smaragda Lymperopoulou ORCID iD
Author: Vasiliki Dokorou
Author: Manolis Manos
Author: John C. Plakatouras

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