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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Reguera, Edilso
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Publications (4/4 displayed)
- 2023Atypical Metal‐Center Coordination in Two Cyanide‐Based Coordination Polymerscitations
- 2022Tunable control of the structural features and related physical properties of MnxFe3- xO4 nanoparticles: Implication on their heating performance by magnetic hyperthermiacitations
- 2018Electrochemical Methane Activation and Conversion Using Fe, Co, Cu Oxides/ZrO<sub>2</sub> Nanocomposites
- 2017Synthesis, crystal structures, and properties of Zeolite-Like T3 (H3 O)2 [M(CN)6 ]2 ·u H2 O (T = Co, Zn; M = Ru, Os)citations
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article
Atypical Metal‐Center Coordination in Two Cyanide‐Based Coordination Polymers
Abstract
<jats:title>Abstract</jats:title><jats:p>This contribution reports the crystal structure, solved and refined from single crystal XRD data, of two cyanide‐based coordination polymers, with K[Cu<jats:sub>2</jats:sub>(CN)<jats:sub>3</jats:sub>] ⋅ H<jats:sub>2</jats:sub>O (<jats:bold>1</jats:bold>) and [Cd(H<jats:sub>2</jats:sub>O)]<jats:sub>2</jats:sub>Cd(H<jats:sub>2</jats:sub>O)<jats:sub>2</jats:sub>[Cu(CN)<jats:sub>3</jats:sub>Cu(CN)<jats:sub>2</jats:sub>]<jats:sub>2</jats:sub> ⋅ 8H<jats:sub>2</jats:sub>O (<jats:bold>2</jats:bold>) as formula units. These coordination polymers are characterized by metal‐metal bonds between copper atoms. In <jats:bold>1</jats:bold>, the framework is formed by Cu−Cu(CN)<jats:sub>3</jats:sub> pseudo tetrahedral blocks linked by planar Cu<jats:sub>2</jats:sub>(CN)<jats:sub>3</jats:sub> units. In this material, a defined Cu−Cu bond was identified, which is congruent with the corresponding Raman spectrum. The K atom and water molecule occupy the framework cavities. In <jats:bold>2</jats:bold>, the Cu−Cu bond is observed in Cu<jats:sub>2</jats:sub>(CN)<jats:sub>6</jats:sub> blocks which remain linked to Cd(NC)<jats:sub>2</jats:sub>(H<jats:sub>2</jats:sub>O)<jats:sub>4</jats:sub> and Cd(NC)<jats:sub>4</jats:sub>(H<jats:sub>2</jats:sub>O)2 units occupying their axial and equatorial coordination positions, respectively. The solid framework is completed by the −N=C−Cu−C=N− chains linked to Cd(NC)<jats:sub>4</jats:sub>(H<jats:sub>2</jats:sub>O)<jats:sub>2</jats:sub> moieties. The crystal structure for <jats:bold>2</jats:bold> contains two different sites for the metal centers. The structural study was complemented by recording IR, Raman, and UV/Vis spectra. These two coordination polymers behave as semiconductor materials with a band gap of 2.79 and 3.43 eV, respectively, as derived from the Tauc plot of the corresponding UV/Vis spectrum. Band structure calculations properly supported these values. <jats:bold>1</jats:bold> is a material of an indirect band gap, while <jats:bold>2</jats:bold> has a direct band gap.</jats:p>