Self-assembly of [Sn(OPMe3)3(CF3SO3)2]6 metallocyclic Sn(<scp>ii</scp>) hexamer stacks with CF3-lined channel interiors

Cairns, Kelsey; King, Ros; Levason, William; Reid, Gillian

doi:10.1039/d2ce01029a

CrystEngComm

2022

DOI: 10.1039/d2ce01029a

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Self-assembly of [Sn(OPMe₃)₃(CF₃SO₃)₂]₆ metallocyclic Sn(ii) hexamer stacks with CF₃-lined channel interiors

Kelsey Cairns

Ros King

William Levason

et al.

Abstract: [Sn(OPMe3)¬3¬(CF3SO3)2]6 (1) self-assembles to form a highly unusual hexagonal metallocyclic array with bridging CF3SO3- groups. The discrete hexamers stack along the c-axis to form hydrophobic CF3-lined channels with an F...F...

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2024

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Structural Diversity of Sn(II) Phosphine Oxide Complexes with Weakly Coordinating Anions and Comparisons with Related Ge(II) and Pb(II) Species

King,

Cairns,

Denman

et al. 2024

Eur J Inorg Chem

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A series of tin(II) triflate phosphine oxide complexes has been prepared from the reaction of Sn(OTf)2 (OTf‐ = [O3SCF3]‐ with various ratios of OPPh3, OPMe3 or dppmO2 (dppmO2 = Ph2(O)PCH2P(O)Ph2). The complexes [Sn(OPPh3)n][OTf]2 (n = 2, 3 or 4), [Sn(OPMe3)n][OTf]2 (n = 2 or 3) and [Sn(dppmO2)n][OTf]2 (n = 1 or 2) have been isolated in moderate to good yields. Selected germanium(II) and lead(II) analogues have been made for comparison, namely [Ge(OPPh3)n][OTf]2 (n = 2 or 3) and [Pb(OPR3)4][OTf]2 (R = Me, Ph). The effect of changing the weakly coordinating OTf‐ anion for the non‐coordinating [BArF]‐ anion was investigated through anion metathesis, furnishing the complexes [Sn(OPPh3)n][BArF]2 (n = 3 or 4) and [Ge(OPPh3)3][BArF]2. The isolated solids were characterised by 1H, 19F{1H}, 31P{1H} and IR spectroscopy and microanalysis. Crystal structures were obtained for all complexes except [Ge(OPPh3)2][OTf]2 and [Sn(OPPh3)3][BArF]2, allowing comparisons of the structural features of these divalent group 14 complexes down the group and as a function of coordination number, ligand sterics and electronics.

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Structural Diversity of Sn(II) Phosphine Oxide Complexes with Weakly Coordinating Anions and Comparisons with Related Ge(II) and Pb(II) Species

King,

Cairns,

Denman

et al. 2024

Eur J Inorg Chem

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show abstract

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Self-assembly of [Sn(OPMe₃)₃(CF₃SO₃)₂]₆ metallocyclic Sn(ii) hexamer stacks with CF₃-lined channel interiors

Abstract: [Sn(OPMe3)¬3¬(CF3SO3)2]6 (1) self-assembles to form a highly unusual hexagonal metallocyclic array with bridging CF3SO3- groups. The discrete hexamers stack along the c-axis to form hydrophobic CF3-lined channels with an F...F...

Cited by 1 publication

References 32 publications

Structural Diversity of Sn(II) Phosphine Oxide Complexes with Weakly Coordinating Anions and Comparisons with Related Ge(II) and Pb(II) Species

Structural Diversity of Sn(II) Phosphine Oxide Complexes with Weakly Coordinating Anions and Comparisons with Related Ge(II) and Pb(II) Species

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Self-assembly of [Sn(OPMe3)3(CF3SO3)2]6 metallocyclic Sn(ii) hexamer stacks with CF3-lined channel interiors

Abstract: [Sn(OPMe3)¬3¬(CF3SO3)2]6 (1) self-assembles to form a highly unusual hexagonal metallocyclic array with bridging CF3SO3- groups. The discrete hexamers stack along the c-axis to form hydrophobic CF3-lined channels with an F...F...

Cited by 1 publication

References 32 publications

Structural Diversity of Sn(II) Phosphine Oxide Complexes with Weakly Coordinating Anions and Comparisons with Related Ge(II) and Pb(II) Species

Structural Diversity of Sn(II) Phosphine Oxide Complexes with Weakly Coordinating Anions and Comparisons with Related Ge(II) and Pb(II) Species

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Product

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Self-assembly of [Sn(OPMe₃)₃(CF₃SO₃)₂]₆ metallocyclic Sn(ii) hexamer stacks with CF₃-lined channel interiors