[B(O2C2(CF3)4)2]− ([FPB]−): repurposing this weakly coordinating anion for solid-state molecular organometallic (SMOM) chemistry

Kristof M Altus; M Arif Sajjad; Stuart A Macgregor; Andrew S Weller

doi:10.1021/acs.organomet.5c00112

[B(O₂C2(CF₃)₄)₂]⁻ ([FPB]⁻): repurposing this weakly coordinating anion for solid-state molecular organometallic (SMOM) chemistry

Kristof M Altus
, M Arif Sajjad
, Stuart A Macgregor^*
, Andrew S Weller^*

^*Corresponding author for this work

School of Chemistry

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

Abstract

The perfluoropinacol borate-based anion [B-(O₂C₂(CF₃)₄)₂]^-, [FPB]^-, is developed as a weakly coordinating anion for single-crystal to single-crystal organometallic solid/gas reactivity, resulting in the isolation and characterization (including periodic DFT and IGMH analysis) of the σ-alkane complex [Rh-(Cy₂PCH₂CH₂PCy₂)-(exo-η²η²-norbornane)]-[FPB]. The synthetically useful solvent-free Na⁺ salt, Na-[FPB], and oxonium acid [H-(OEt₂)₂]-[FPB] are also reported.

Original language	English
Pages (from-to)	1018-1021
Number of pages	4
Journal	Organometallics
Volume	44
Issue number	10
Early online date	4 May 2025
DOIs	https://doi.org/10.1021/acs.organomet.5c00112
Publication status	Published - 26 May 2025

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Altus-et-al-2025-b(o2c2(cf3)4)2-(-fpb-)-repurposing-this-weakly-Organometallics-44-1018-CCBY
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CCDC 2434355-2434359: Experimental Crystal Structure Determination
Altus, Kristof M. (Creator), Sajjad, M. Arif (Creator), Macgregor, Stuart A. (Creator) & Weller, Andrew S. (Creator), Cambridge Crystallographic Data Centre, 2025
DOI: 10.5517/ccdc.csd.cc2mq4l3, https://dx.doi.org/10.5517/ccdc.csd.cc2mq4m4 and 3 more links, https://dx.doi.org/10.5517/ccdc.csd.cc2mq4n5, https://dx.doi.org/10.5517/ccdc.csd.cc2mq4p6, https://dx.doi.org/10.5517/ccdc.csd.cc2mq4q7 (show fewer)
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@article{3425b892015c4cbab9f29077005d8232,

title = "[B(O2C2(CF3)4)2]− ([FPB]−): repurposing this weakly coordinating anion for solid-state molecular organometallic (SMOM) chemistry",

abstract = "The perfluoropinacol borate-based anion [B-(O2C2(CF3)4)2]-, [FPB]-, is developed as a weakly coordinating anion for single-crystal to single-crystal organometallic solid/gas reactivity, resulting in the isolation and characterization (including periodic DFT and IGMH analysis) of the σ-alkane complex [Rh-(Cy2PCH2CH2PCy2)-(exo-η2η2-norbornane)]-[FPB]. The synthetically useful solvent-free Na+ salt, Na-[FPB], and oxonium acid [H-(OEt2)2]-[FPB] are also reported.",

author = "Altus, \{Kristof M\} and Sajjad, \{M Arif\} and Macgregor, \{Stuart A\} and Weller, \{Andrew S\}",

note = "Funding: EPSRC (EP/W015552/1 and EP/W015498/1). This work used the ARCHER2 UK National Supercomputing Service (https://www.archer2.ac.uk).",

year = "2025",

month = may,

day = "26",

doi = "10.1021/acs.organomet.5c00112",

language = "English",

volume = "44",

pages = "1018--1021",

journal = "Organometallics",

issn = "0276-7333",

publisher = "American Chemical Society (ACS)",

number = "10",

}

TY - JOUR

T1 - [B(O2C2(CF3)4)2]− ([FPB]−): repurposing this weakly coordinating anion for solid-state molecular organometallic (SMOM) chemistry

AU - Altus, Kristof M

AU - Sajjad, M Arif

AU - Macgregor, Stuart A

AU - Weller, Andrew S

N1 - Funding: EPSRC (EP/W015552/1 and EP/W015498/1). This work used the ARCHER2 UK National Supercomputing Service (https://www.archer2.ac.uk).

PY - 2025/5/26

Y1 - 2025/5/26

N2 - The perfluoropinacol borate-based anion [B-(O2C2(CF3)4)2]-, [FPB]-, is developed as a weakly coordinating anion for single-crystal to single-crystal organometallic solid/gas reactivity, resulting in the isolation and characterization (including periodic DFT and IGMH analysis) of the σ-alkane complex [Rh-(Cy2PCH2CH2PCy2)-(exo-η2η2-norbornane)]-[FPB]. The synthetically useful solvent-free Na+ salt, Na-[FPB], and oxonium acid [H-(OEt2)2]-[FPB] are also reported.

AB - The perfluoropinacol borate-based anion [B-(O2C2(CF3)4)2]-, [FPB]-, is developed as a weakly coordinating anion for single-crystal to single-crystal organometallic solid/gas reactivity, resulting in the isolation and characterization (including periodic DFT and IGMH analysis) of the σ-alkane complex [Rh-(Cy2PCH2CH2PCy2)-(exo-η2η2-norbornane)]-[FPB]. The synthetically useful solvent-free Na+ salt, Na-[FPB], and oxonium acid [H-(OEt2)2]-[FPB] are also reported.

U2 - 10.1021/acs.organomet.5c00112

DO - 10.1021/acs.organomet.5c00112

M3 - Article

SN - 0276-7333

VL - 44

SP - 1018

EP - 1021

JO - Organometallics

JF - Organometallics

IS - 10

ER -

[B(O2C2(CF3)4)2]− ([FPB]−): repurposing this weakly coordinating anion for solid-state molecular organometallic (SMOM) chemistry

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CCDC 2434355-2434359: Experimental Crystal Structure Determination

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[B(O₂C2(CF₃)₄)₂]⁻ ([FPB]⁻): repurposing this weakly coordinating anion for solid-state molecular organometallic (SMOM) chemistry