Chelating phosphane-boranes as hemilabile ligands - Synthesis of [Mn(CO)32-H3B·dppin)][BArF4 ] and [Mn(CO)41-H3B· dppm)][BArF4]

N. Merle, C.G. Frost, Gabriele Kociok-Kohn, Michael C Willis, A.S. Weller

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Manganese complexes bearing the chelating phosphane–borane ligand H3B·dppm [dppm = bis(diphenylphosphanyl)methane] have been prepared. Addition of H3B·dppm to Mn(CO)5Br using Na[BArF4] as a halide-abstracting reagent affords [Mn(CO)3(η2-H3B·dppm)][BArF4] (1). This reacts with CO to open the bidentate borane to afford [Mn(CO)4(η1-H3B·dppm)][BArF4] (2) in which the borane is now bound in a monodentate manner. The CO addition is reversible, and placing 2 under vacuum (hours) regenerates 1 quantitatively, demonstrating that the chelating phosphane–boranes can act as hemilabile ligands. The complexes 1 and 2 have been fully characterised by NMR spectroscopy and X-ray crystallography.
Original languageEnglish
Pages (from-to)4068-4073
Number of pages6
JournalEuropean Journal of Inorganic Chemistry
Volume2006
Issue number20
DOIs
Publication statusPublished - 16 Oct 2006

Fingerprint

phosphine
Boranes
Carbon Monoxide
Chelation
Ligands
Bearings (structural)
X ray crystallography
Methane
Manganese
Nuclear magnetic resonance spectroscopy
Vacuum

Cite this

Chelating phosphane-boranes as hemilabile ligands - Synthesis of [Mn(CO)32-H3B·dppin)][BArF4 ] and [Mn(CO)41-H3B· dppm)][BArF4]. / Merle, N.; Frost, C.G.; Kociok-Kohn, Gabriele; Willis, Michael C; Weller, A.S.

In: European Journal of Inorganic Chemistry, Vol. 2006, No. 20, 16.10.2006, p. 4068-4073.

Research output: Contribution to journalArticle

@article{c11e0010d8864697aab72937b3fde187,
title = "Chelating phosphane-boranes as hemilabile ligands - Synthesis of [Mn(CO)3(η2-H3B·dppin)][BArF4 ] and [Mn(CO)4(η1-H3B· dppm)][BArF4]",
abstract = "Manganese complexes bearing the chelating phosphane–borane ligand H3B·dppm [dppm = bis(diphenylphosphanyl)methane] have been prepared. Addition of H3B·dppm to Mn(CO)5Br using Na[BArF4] as a halide-abstracting reagent affords [Mn(CO)3(η2-H3B·dppm)][BArF4] (1). This reacts with CO to open the bidentate borane to afford [Mn(CO)4(η1-H3B·dppm)][BArF4] (2) in which the borane is now bound in a monodentate manner. The CO addition is reversible, and placing 2 under vacuum (hours) regenerates 1 quantitatively, demonstrating that the chelating phosphane–boranes can act as hemilabile ligands. The complexes 1 and 2 have been fully characterised by NMR spectroscopy and X-ray crystallography.",
author = "N. Merle and C.G. Frost and Gabriele Kociok-Kohn and Willis, {Michael C} and A.S. Weller",
year = "2006",
month = "10",
day = "16",
doi = "10.1002/ejic.200600526",
language = "English",
volume = "2006",
pages = "4068--4073",
journal = "European Journal of Inorganic Chemistry",
issn = "1434-1948",
publisher = "Wiley-VCH Verlag",
number = "20",

}

TY - JOUR

T1 - Chelating phosphane-boranes as hemilabile ligands - Synthesis of [Mn(CO)3(η2-H3B·dppin)][BArF4 ] and [Mn(CO)4(η1-H3B· dppm)][BArF4]

AU - Merle, N.

AU - Frost, C.G.

AU - Kociok-Kohn, Gabriele

AU - Willis, Michael C

AU - Weller, A.S.

PY - 2006/10/16

Y1 - 2006/10/16

N2 - Manganese complexes bearing the chelating phosphane–borane ligand H3B·dppm [dppm = bis(diphenylphosphanyl)methane] have been prepared. Addition of H3B·dppm to Mn(CO)5Br using Na[BArF4] as a halide-abstracting reagent affords [Mn(CO)3(η2-H3B·dppm)][BArF4] (1). This reacts with CO to open the bidentate borane to afford [Mn(CO)4(η1-H3B·dppm)][BArF4] (2) in which the borane is now bound in a monodentate manner. The CO addition is reversible, and placing 2 under vacuum (hours) regenerates 1 quantitatively, demonstrating that the chelating phosphane–boranes can act as hemilabile ligands. The complexes 1 and 2 have been fully characterised by NMR spectroscopy and X-ray crystallography.

AB - Manganese complexes bearing the chelating phosphane–borane ligand H3B·dppm [dppm = bis(diphenylphosphanyl)methane] have been prepared. Addition of H3B·dppm to Mn(CO)5Br using Na[BArF4] as a halide-abstracting reagent affords [Mn(CO)3(η2-H3B·dppm)][BArF4] (1). This reacts with CO to open the bidentate borane to afford [Mn(CO)4(η1-H3B·dppm)][BArF4] (2) in which the borane is now bound in a monodentate manner. The CO addition is reversible, and placing 2 under vacuum (hours) regenerates 1 quantitatively, demonstrating that the chelating phosphane–boranes can act as hemilabile ligands. The complexes 1 and 2 have been fully characterised by NMR spectroscopy and X-ray crystallography.

UR - http://www.scopus.com/inward/record.url?scp=33750289109&partnerID=8YFLogxK

UR - http://dx.doi.org/10.1002/ejic.200600526

U2 - 10.1002/ejic.200600526

DO - 10.1002/ejic.200600526

M3 - Article

VL - 2006

SP - 4068

EP - 4073

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

SN - 1434-1948

IS - 20

ER -