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Adding to the family of copper complexes featuring borohydride ligands based on 2-mercaptopyridyl units

Adding to the family of copper complexes featuring borohydride ligands based on 2-mercaptopyridyl units
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 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, [H3B(mp)]− (mp = 2-mercaptopyridyl), has been explored. Reaction of Na[BH3(mp)] with one equivalent of Cu(I)Cl in the presence of either triphenylphosphine or tricyclohexylphosphine co-ligands leads to the formation of [Cu{H3B(mp)}(PR3)] (R = Ph, 1; Cy, 2), respectively. Structural characterization confirms a κ3-S,H,H coordination mode for the borohydride-based ligand within 1 and 2, involving a dihydroborate bridging interaction (BH2Cu) with the copper centers
scorpionate, copper, borohydride, ligand, sulfur
2304-6740
Goldsworthy, Joseph
f1792023-0220-4fb0-be79-9739c963406f
Thomas, Simon D.
34a4735e-891b-472a-a681-b5310939f610
Tizzard, Graham J.
8474c0fa-40df-43a6-a662-7f3c4722dbf2
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Owen, Gareth R.
fd633ee9-dcaa-438c-9b3b-82e9d091a1c6
Goldsworthy, Joseph
f1792023-0220-4fb0-be79-9739c963406f
Thomas, Simon D.
34a4735e-891b-472a-a681-b5310939f610
Tizzard, Graham J.
8474c0fa-40df-43a6-a662-7f3c4722dbf2
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Owen, Gareth R.
fd633ee9-dcaa-438c-9b3b-82e9d091a1c6

Goldsworthy, Joseph, Thomas, Simon D., Tizzard, Graham J., Coles, Simon J. and Owen, Gareth R. (2019) Adding to the family of copper complexes featuring borohydride ligands based on 2-mercaptopyridyl units. Inorganics, 7 (8). (doi:10.3390/inorganics7080093).

Record type: Article

Abstract

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, [H3B(mp)]− (mp = 2-mercaptopyridyl), has been explored. Reaction of Na[BH3(mp)] with one equivalent of Cu(I)Cl in the presence of either triphenylphosphine or tricyclohexylphosphine co-ligands leads to the formation of [Cu{H3B(mp)}(PR3)] (R = Ph, 1; Cy, 2), respectively. Structural characterization confirms a κ3-S,H,H coordination mode for the borohydride-based ligand within 1 and 2, involving a dihydroborate bridging interaction (BH2Cu) with the copper centers

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inorganics-07-00093-v2 - Version of Record
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More information

Accepted/In Press date: 19 July 2019
e-pub ahead of print date: 24 July 2019
Keywords: scorpionate, copper, borohydride, ligand, sulfur

Identifiers

Local EPrints ID: 433297
URI: https://eprints.soton.ac.uk/id/eprint/433297
ISSN: 2304-6740
PURE UUID: 379d1a37-5189-40bc-a7a4-291da4e19ef6
ORCID for Graham J. Tizzard: ORCID iD orcid.org/0000-0002-1577-5779
ORCID for Simon J. Coles: ORCID iD orcid.org/0000-0001-8414-9272

Catalogue record

Date deposited: 13 Aug 2019 16:30
Last modified: 19 Sep 2019 00:37

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