Gold(I) Phosphine/Phosphido-Borohydride Complexes

Matthew J. G.  Sinclair; Marc-Etienne Moret; LUKE WILKINSON; Adrian B.  Chaplin

doi:10.1002/ejic.202500271

Gold(I) Phosphine/Phosphido-Borohydride Complexes

Matthew J. G. Sinclair, Marc-Etienne Moret, LUKE WILKINSON^*, Adrian B. Chaplin^*

^*Corresponding author for this work

Biology

Research output: Contribution to journal › Article (journal) › peer-review

Abstract

A homologous series of linear, mononuclear gold(I) phosphine/phosphido-borohydride complexes, encompassing [Au(PR3)2]+ 1, [Au(PR3)(PR2BH3)] 2 and [Au(PR2BH3)2]– 3 (R = tBu, Ad), has been prepared and structurally characterised. Strong intramolecular dispersion interactions are evident in the complexes with Ad-substituted ligands, which adopt eclipsed conformations in the solid state exclusively while there is no clear preference for the tBu-substituted analogues. Despite the disparate donor properties of the phosphine and phosphido-borohydride ligands, there are no statistically significant differences in Au–P bond length (~2.33 Å) across the series. This difference is, however, manifested in the redox characteristics of the gold(I) complexes, which are more readily oxidised in the order 1 < 2 < 3.

Original language	English
Pages (from-to)	1-17
Number of pages	17
Journal	European Journal of Inorganic Chemistry
Early online date	11 Jun 2025
DOIs	https://doi.org/10.1002/ejic.202500271
Publication status	E-pub ahead of print - 11 Jun 2025

Keywords

homologous series
mononuclear gold
intramolecular dispersion interactions
Ad-substituted ligands
gold(I) complexes
Gold
phosphane ligands
coordination chemistry
P ligands
solid‐state structures
solid-state structures

Access to Document

10.1002/ejic.202500271Licence: CC BY

Embargoed Document

_manuscript_revised
Accepted author manuscript, 2.1 MB
Licence: CC BY
Embargo ends: 11/06/26

Cite this

@article{5b732f21c3fc4e41a107e861c5e19697,

title = "Gold(I) Phosphine/Phosphido-Borohydride Complexes",

abstract = "A homologous series of linear, mononuclear gold(I) phosphine/phosphido-borohydride complexes, encompassing [Au(PR3)2]+ 1, [Au(PR3)(PR2BH3)] 2 and [Au(PR2BH3)2]– 3 (R = tBu, Ad), has been prepared and structurally characterised. Strong intramolecular dispersion interactions are evident in the complexes with Ad-substituted ligands, which adopt eclipsed conformations in the solid state exclusively while there is no clear preference for the tBu-substituted analogues. Despite the disparate donor properties of the phosphine and phosphido-borohydride ligands, there are no statistically significant differences in Au–P bond length (\textasciitilde{}2.33 {\AA}) across the series. This difference is, however, manifested in the redox characteristics of the gold(I) complexes, which are more readily oxidised in the order 1 < 2 < 3.",

keywords = "homologous series, mononuclear gold, intramolecular dispersion interactions, Ad-substituted ligands, gold(I) complexes, Gold, phosphane ligands, coordination chemistry, P ligands, solid‐state structures, solid-state structures",

author = "Sinclair, \{Matthew J. G.\} and Marc-Etienne Moret and LUKE WILKINSON and Chaplin, \{Adrian B.\}",

note = "Publisher Copyright: {\textcopyright} 2025 The Author(s). European Journal of Inorganic Chemistry published by Wiley-VCH GmbH.",

year = "2025",

month = jun,

day = "11",

doi = "10.1002/ejic.202500271",

language = "English",

pages = "1--17",

journal = "European Journal of Inorganic Chemistry",

issn = "1099-0682",

publisher = "Wiley-VCH Verlag",

}

TY - JOUR

T1 - Gold(I) Phosphine/Phosphido-Borohydride Complexes

AU - Sinclair, Matthew J. G.

AU - Moret, Marc-Etienne

AU - WILKINSON, LUKE

AU - Chaplin, Adrian B.

PY - 2025/6/11

Y1 - 2025/6/11

N2 - A homologous series of linear, mononuclear gold(I) phosphine/phosphido-borohydride complexes, encompassing [Au(PR3)2]+ 1, [Au(PR3)(PR2BH3)] 2 and [Au(PR2BH3)2]– 3 (R = tBu, Ad), has been prepared and structurally characterised. Strong intramolecular dispersion interactions are evident in the complexes with Ad-substituted ligands, which adopt eclipsed conformations in the solid state exclusively while there is no clear preference for the tBu-substituted analogues. Despite the disparate donor properties of the phosphine and phosphido-borohydride ligands, there are no statistically significant differences in Au–P bond length (~2.33 Å) across the series. This difference is, however, manifested in the redox characteristics of the gold(I) complexes, which are more readily oxidised in the order 1 < 2 < 3.

AB - A homologous series of linear, mononuclear gold(I) phosphine/phosphido-borohydride complexes, encompassing [Au(PR3)2]+ 1, [Au(PR3)(PR2BH3)] 2 and [Au(PR2BH3)2]– 3 (R = tBu, Ad), has been prepared and structurally characterised. Strong intramolecular dispersion interactions are evident in the complexes with Ad-substituted ligands, which adopt eclipsed conformations in the solid state exclusively while there is no clear preference for the tBu-substituted analogues. Despite the disparate donor properties of the phosphine and phosphido-borohydride ligands, there are no statistically significant differences in Au–P bond length (~2.33 Å) across the series. This difference is, however, manifested in the redox characteristics of the gold(I) complexes, which are more readily oxidised in the order 1 < 2 < 3.

KW - homologous series

KW - mononuclear gold

KW - intramolecular dispersion interactions

KW - Ad-substituted ligands

KW - gold(I) complexes

KW - Gold

KW - phosphane ligands

KW - coordination chemistry

KW - P ligands

KW - solid‐state structures

KW - solid-state structures

U2 - 10.1002/ejic.202500271

DO - 10.1002/ejic.202500271

M3 - Article (journal)

SN - 1099-0682

SP - 1

EP - 17

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

ER -

Gold(I) Phosphine/Phosphido-Borohydride Complexes

Abstract

Keywords

Access to Document

Embargoed Document

Fingerprint

Cite this