Pienack, Nicole ; Lühmann, Henning ; Djamil, John ; Permien, Stefan ; Näther, Christian ; Haumann, Sebastian ; Weihrich, Richard ; Bensch, Wolfgang
Alternative Links zum Volltext:DOIVerlag
| Dokumentenart: | Artikel |
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| Titel eines Journals oder einer Zeitschrift: | Chemistry – A European Journal |
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| Verlag: | WILEY-V C H VERLAG GMBH |
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| Ort der Veröffentlichung: | WEINHEIM |
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| Band: | 21 |
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| Nummer des Zeitschriftenheftes oder des Kapitels: | 39 |
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| Seitenbereich: | S. 13637-13645 |
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| Datum: | 2015 |
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| Institutionen: | Chemie und Pharmazie > Institut für Anorganische Chemie > Arbeitskreis Dr. Richard Weihrich |
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| Identifikationsnummer: | | Wert | Typ |
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| 10.1002/chem.201501796 | DOI |
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| Stichwörter / Keywords: | INTERMOLECULAR INTERACTIONS; CRYSTAL-STRUCTURES; HYDROGEN-PRODUCTION; MOLECULAR-CRYSTALS; HIRSHFELD SURFACES; COMPLEXES; COBALT; EVOLUTION; SULFIDE; SYSTEMS; cobalt; density functional calculations; disulfide bridges; Hirshfeld surface; photocatalysis |
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| Dewey-Dezimal-Klassifikation: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
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| Status: | Veröffentlicht |
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| Begutachtet: | Ja, diese Version wurde begutachtet |
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| An der Universität Regensburg entstanden: | Ja |
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| Dokumenten-ID: | 60106 |
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Web of Science
Zusammenfassung
The compound [Co-4(C6H14N2)(4)((4)-S-2)(2)((2)-S-2)(4)] (I) and the pseudo-polymorph [Co-4(C6H14N2)(4)((4)-S-2)(2)((2)-S-2)(4)]4H(2)O (II) were obtained under solvothermal conditions (C6H14N2=trans-1,2-diaminocyclohexane). The structures feature S-2(2-) ions exhibiting two different coordination modes. Terminal S-2(2-) entities join two Co3+ centres in a (2) fashion, whereas the central S-2(2-) ...
Zusammenfassung
The compound [Co-4(C6H14N2)(4)((4)-S-2)(2)((2)-S-2)(4)] (I) and the pseudo-polymorph [Co-4(C6H14N2)(4)((4)-S-2)(2)((2)-S-2)(4)]4H(2)O (II) were obtained under solvothermal conditions (C6H14N2=trans-1,2-diaminocyclohexane). The structures feature S-2(2-) ions exhibiting two different coordination modes. Terminal S-2(2-) entities join two Co3+ centres in a (2) fashion, whereas the central S-2(2-) groups connect four Co3+ cations in a (4)- coordination mode. Compound II can be transformed into compound I by heat and storage over P2O5 and storing compound I in humid air yields in the formation of compound II. The intermolecular interactions investigated through Hirshfeld surface analysis reveal that besides SH bonding close contacts are associated with relatively weak HH interactions. A detailed DFT analysis of the bonding situation explains the long SS bonds in the (4)-bridging S-2(2-) units and the short bonds for the S-2(2-) moieties in the (2)-connecting mode. Photocatalytic hydrogen evolution experiments demonstrate the potential of compound II as catalyst.
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