Adding to the Family of Copper Complexes Featuring Borohydride Ligands Based on 2-Mercaptopyridyl Units
Borohydride ligands featuring multiple pendant donor functionalities have been prevalent in the chemical literature for many decades now. More recent times has seen their development into new families of so-called soft scorpionates, for example, those featuring sulfur based donors. Despite all of th...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-07-01
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| Series: | Inorganics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-6740/7/8/93 |
| _version_ | 1828407017628237824 |
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| author | Joseph Goldsworthy Simon D. Thomas Graham J. Tizzard Simon J. Coles Gareth R. Owen |
| author_facet | Joseph Goldsworthy Simon D. Thomas Graham J. Tizzard Simon J. Coles Gareth R. Owen |
| author_sort | Joseph Goldsworthy |
| collection | DOAJ |
| description | Borohydride ligands featuring multiple pendant donor functionalities have been prevalent in the chemical literature for many decades now. More recent times has seen their development into new families of so-called soft scorpionates, for example, those featuring sulfur based donors. Despite all of these developments, those ligands containing just one pendant group are rare. This article explores one ligand family based on the 2-mercaptopyridine heterocycle. The coordination chemistry of the monosubstituted ligand, [H<sub>3</sub>B(mp)]<sup>−</sup> (mp = 2-mercaptopyridyl), has been explored. Reaction of Na[BH<sub>3</sub>(mp)] with one equivalent of Cu<sup>(I)</sup>Cl in the presence of either triphenylphosphine or tricyclohexylphosphine co-ligands leads to the formation of [Cu{H<sub>3</sub>B(mp)}(PR<sub>3</sub>)] (R = Ph, <b>1</b>; Cy, <b>2</b>), respectively. Structural characterization confirms a κ<sup>3</sup>-<i>S,H,H</i> coordination mode for the borohydride-based ligand within <b>1</b> and <b>2</b>, involving a dihydroborate bridging interaction (BH<sub>2</sub>Cu) with the copper centers. |
| first_indexed | 2024-12-10T11:19:29Z |
| format | Article |
| id | doaj.art-47df60385f8145d28d776b9c23e1d3e6 |
| institution | Directory Open Access Journal |
| issn | 2304-6740 |
| language | English |
| last_indexed | 2024-12-10T11:19:29Z |
| publishDate | 2019-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Inorganics |
| spelling | doaj.art-47df60385f8145d28d776b9c23e1d3e62022-12-22T01:51:01ZengMDPI AGInorganics2304-67402019-07-01789310.3390/inorganics7080093inorganics7080093Adding to the Family of Copper Complexes Featuring Borohydride Ligands Based on 2-Mercaptopyridyl UnitsJoseph Goldsworthy0Simon D. Thomas1Graham J. Tizzard2Simon J. Coles3Gareth R. Owen4School of Applied Sciences, University of South Wales, Pontypridd CF37 4AT, UKSchool of Applied Sciences, University of South Wales, Pontypridd CF37 4AT, UKUK National Crystallography Service, University of Southampton, Highfield, Southampton SO17 1BJ, UKUK National Crystallography Service, University of Southampton, Highfield, Southampton SO17 1BJ, UKSchool of Applied Sciences, University of South Wales, Pontypridd CF37 4AT, UKBorohydride ligands featuring multiple pendant donor functionalities have been prevalent in the chemical literature for many decades now. More recent times has seen their development into new families of so-called soft scorpionates, for example, those featuring sulfur based donors. Despite all of these developments, those ligands containing just one pendant group are rare. This article explores one ligand family based on the 2-mercaptopyridine heterocycle. The coordination chemistry of the monosubstituted ligand, [H<sub>3</sub>B(mp)]<sup>−</sup> (mp = 2-mercaptopyridyl), has been explored. Reaction of Na[BH<sub>3</sub>(mp)] with one equivalent of Cu<sup>(I)</sup>Cl in the presence of either triphenylphosphine or tricyclohexylphosphine co-ligands leads to the formation of [Cu{H<sub>3</sub>B(mp)}(PR<sub>3</sub>)] (R = Ph, <b>1</b>; Cy, <b>2</b>), respectively. Structural characterization confirms a κ<sup>3</sup>-<i>S,H,H</i> coordination mode for the borohydride-based ligand within <b>1</b> and <b>2</b>, involving a dihydroborate bridging interaction (BH<sub>2</sub>Cu) with the copper centers.https://www.mdpi.com/2304-6740/7/8/93scorpionatecopperborohydrideligandsulfur |
| spellingShingle | Joseph Goldsworthy Simon D. Thomas Graham J. Tizzard Simon J. Coles Gareth R. Owen Adding to the Family of Copper Complexes Featuring Borohydride Ligands Based on 2-Mercaptopyridyl Units Inorganics scorpionate copper borohydride ligand sulfur |
| title | Adding to the Family of Copper Complexes Featuring Borohydride Ligands Based on 2-Mercaptopyridyl Units |
| title_full | Adding to the Family of Copper Complexes Featuring Borohydride Ligands Based on 2-Mercaptopyridyl Units |
| title_fullStr | Adding to the Family of Copper Complexes Featuring Borohydride Ligands Based on 2-Mercaptopyridyl Units |
| title_full_unstemmed | Adding to the Family of Copper Complexes Featuring Borohydride Ligands Based on 2-Mercaptopyridyl Units |
| title_short | Adding to the Family of Copper Complexes Featuring Borohydride Ligands Based on 2-Mercaptopyridyl Units |
| title_sort | adding to the family of copper complexes featuring borohydride ligands based on 2 mercaptopyridyl units |
| topic | scorpionate copper borohydride ligand sulfur |
| url | https://www.mdpi.com/2304-6740/7/8/93 |
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