Photocatalytic Hydrogen Evolution by tris-dithiolene tungsten complexes
Herein, we report on the homogeneous photocatalytic evolution of hydrogen by using as reductive catalysts the prismatic symmetric tris – dithiolene complexes of the tungsten, namely [W{S2C2(Ph)2}3] (1) and its monoanion [W{S2C2(Ph)2}3](TBA) (2). Complex 2 is fully characterized by elemental analysis...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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De Gruyter
2016-01-01
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| Series: | Open Chemistry |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/chem-2016-0042 |
| _version_ | 1818353823326928896 |
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| author | Koutsouri Eugenia Mitsopoulou Christiana A. |
| author_facet | Koutsouri Eugenia Mitsopoulou Christiana A. |
| author_sort | Koutsouri Eugenia |
| collection | DOAJ |
| description | Herein, we report on the homogeneous photocatalytic evolution of hydrogen by using as reductive catalysts the prismatic symmetric tris – dithiolene complexes of the tungsten, namely [W{S2C2(Ph)2}3] (1) and its monoanion [W{S2C2(Ph)2}3](TBA) (2). Complex 2 is fully characterized by elemental analysis, ESI-MS, IR, UV-Vis and fluorescence spectrophotometry as well as cyclic voltammetry. The photocatalytic system consists of [ReBr(CO)3(bpy)] as a photosensitizer, triethanolamine as a sacrificial electron donor and acetic acid as the proton source. Although the activity of the photocatalytic system is rather small (TON=18), it indicates that the homoleptic tris dithiolene complexes can act as proton reductive catalysts with their monoanion form to be more active in accordance with the findings for the bis - dithiolene complexes. |
| first_indexed | 2024-12-13T19:15:39Z |
| format | Article |
| id | doaj.art-3ea3a0846c254546992b45bb89cbd68b |
| institution | Directory Open Access Journal |
| issn | 2391-5420 |
| language | English |
| last_indexed | 2024-12-13T19:15:39Z |
| publishDate | 2016-01-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Open Chemistry |
| spelling | doaj.art-3ea3a0846c254546992b45bb89cbd68b2022-12-21T23:34:18ZengDe GruyterOpen Chemistry2391-54202016-01-0114139340310.1515/chem-2016-0042chem-2016-0042Photocatalytic Hydrogen Evolution by tris-dithiolene tungsten complexesKoutsouri Eugenia0Mitsopoulou Christiana A.1Inorganic Chemistry Laboratory, Chemistry Department, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou 157 71, GreeceInorganic Chemistry Laboratory, Chemistry Department, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou 157 71, GreeceHerein, we report on the homogeneous photocatalytic evolution of hydrogen by using as reductive catalysts the prismatic symmetric tris – dithiolene complexes of the tungsten, namely [W{S2C2(Ph)2}3] (1) and its monoanion [W{S2C2(Ph)2}3](TBA) (2). Complex 2 is fully characterized by elemental analysis, ESI-MS, IR, UV-Vis and fluorescence spectrophotometry as well as cyclic voltammetry. The photocatalytic system consists of [ReBr(CO)3(bpy)] as a photosensitizer, triethanolamine as a sacrificial electron donor and acetic acid as the proton source. Although the activity of the photocatalytic system is rather small (TON=18), it indicates that the homoleptic tris dithiolene complexes can act as proton reductive catalysts with their monoanion form to be more active in accordance with the findings for the bis - dithiolene complexes.https://doi.org/10.1515/chem-2016-0042homogeneousphotocatalysisreductive catalyststungstendithiolenesrhenium (i)hydrogen |
| spellingShingle | Koutsouri Eugenia Mitsopoulou Christiana A. Photocatalytic Hydrogen Evolution by tris-dithiolene tungsten complexes Open Chemistry homogeneous photocatalysis reductive catalysts tungsten dithiolenes rhenium (i) hydrogen |
| title | Photocatalytic Hydrogen Evolution by tris-dithiolene tungsten complexes |
| title_full | Photocatalytic Hydrogen Evolution by tris-dithiolene tungsten complexes |
| title_fullStr | Photocatalytic Hydrogen Evolution by tris-dithiolene tungsten complexes |
| title_full_unstemmed | Photocatalytic Hydrogen Evolution by tris-dithiolene tungsten complexes |
| title_short | Photocatalytic Hydrogen Evolution by tris-dithiolene tungsten complexes |
| title_sort | photocatalytic hydrogen evolution by tris dithiolene tungsten complexes |
| topic | homogeneous photocatalysis reductive catalysts tungsten dithiolenes rhenium (i) hydrogen |
| url | https://doi.org/10.1515/chem-2016-0042 |
| work_keys_str_mv | AT koutsourieugenia photocatalytichydrogenevolutionbytrisdithiolenetungstencomplexes AT mitsopoulouchristianaa photocatalytichydrogenevolutionbytrisdithiolenetungstencomplexes |