Synthesis and X-ray structural studies of pentaborate(1−) salts containing substituted imidazolium cations

M.A. Beckett; P.N. Horton; M.B. Hursthouse; J.L. Timmis

doi:10.1016/j.poly.2014.04.019

Synthesis and X-ray structural studies of pentaborate(1−) salts containing substituted imidazolium cations

M.A. Beckett
, P.N. Horton
, M.B. Hursthouse
, J.L. Timmis

Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

269 Wedi eu Llwytho i Lawr (Pure)

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The preparation of [NMC][B5O6(OH)4] {NMC = 2-MeC3N2H4 (3),1-MeC3N2H4 (4), 4-MeC3N2H4 (5), 1,2-Me2C3N2H3 (6), 1,2,3-Me3C3N2H2 (7), 1-EtC3N2H4 (8), 2-EtC3N2H4 (9), 2-Et-4-MeC3N2H3 (10) 1-Et-3-MeC3N2H3 (11) and 2-iPrC3N2H4 (12)} salts are reported. Compounds were characterised by spectroscopy (NMR and IR) and by single crystal XRD (6, 7, 9, 10, 12) studies. All structures show extensive H-bonded networks and 7 displays the first example of reciprocal paired αααα anion–anion interactions. These are facilitated by the pentaborate boroxole rings being significantly distorted (boat) from the near-planar arrangements more commonly observed. The related imidazolinium salt, [2-MeC3N2H6][B5O6(OH)4] (13), has also been characterised by XRD studies. Compound 13 is isostructural with 3. Thermal properties (TGA/DSC) indicate decomposition to B2O3via [NMC][(B5O8)n] intermediates.

Iaith wreiddiol	Saesneg
Tudalennau (o-i)	96-102
Cyfnodolyn	Polyhedron
Cyfrol	77
Dynodwyr Gwrthrych Digidol (DOIs)	https://doi.org/10.1016/j.poly.2014.04.019
Statws	Cyhoeddwyd - 19 Ebr 2014

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10.1016/j.poly.2014.04.019

2018-Synthesis and X-ray structural studies of pentaborate(1−) saltsLlawysgrif awdur wedi’i dderbyn, 596 KB

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@article{acf3cef230d84b5d8ebc013b2fadba82,

title = "Synthesis and X-ray structural studies of pentaborate(1−) salts containing substituted imidazolium cations",

abstract = "The preparation of [NMC][B5O6(OH)4] \{NMC = 2-MeC3N2H4 (3),1-MeC3N2H4 (4), 4-MeC3N2H4 (5), 1,2-Me2C3N2H3 (6), 1,2,3-Me3C3N2H2 (7), 1-EtC3N2H4 (8), 2-EtC3N2H4 (9), 2-Et-4-MeC3N2H3 (10) 1-Et-3-MeC3N2H3 (11) and 2-iPrC3N2H4 (12)\} salts are reported. Compounds were characterised by spectroscopy (NMR and IR) and by single crystal XRD (6, 7, 9, 10, 12) studies. All structures show extensive H-bonded networks and 7 displays the first example of reciprocal paired αααα anion–anion interactions. These are facilitated by the pentaborate boroxole rings being significantly distorted (boat) from the near-planar arrangements more commonly observed. The related imidazolinium salt, [2-MeC3N2H6][B5O6(OH)4] (13), has also been characterised by XRD studies. Compound 13 is isostructural with 3. Thermal properties (TGA/DSC) indicate decomposition to B2O3via [NMC][(B5O8)n] intermediates.",

author = "M.A. Beckett and P.N. Horton and M.B. Hursthouse and J.L. Timmis",

year = "2014",

month = apr,

day = "19",

doi = "10.1016/j.poly.2014.04.019",

language = "English",

volume = "77",

pages = "96--102",

journal = "Polyhedron",

issn = "0277-5387",

publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Synthesis and X-ray structural studies of pentaborate(1−) salts containing substituted imidazolium cations

AU - Beckett, M.A.

AU - Horton, P.N.

AU - Hursthouse, M.B.

AU - Timmis, J.L.

PY - 2014/4/19

Y1 - 2014/4/19

N2 - The preparation of [NMC][B5O6(OH)4] {NMC = 2-MeC3N2H4 (3),1-MeC3N2H4 (4), 4-MeC3N2H4 (5), 1,2-Me2C3N2H3 (6), 1,2,3-Me3C3N2H2 (7), 1-EtC3N2H4 (8), 2-EtC3N2H4 (9), 2-Et-4-MeC3N2H3 (10) 1-Et-3-MeC3N2H3 (11) and 2-iPrC3N2H4 (12)} salts are reported. Compounds were characterised by spectroscopy (NMR and IR) and by single crystal XRD (6, 7, 9, 10, 12) studies. All structures show extensive H-bonded networks and 7 displays the first example of reciprocal paired αααα anion–anion interactions. These are facilitated by the pentaborate boroxole rings being significantly distorted (boat) from the near-planar arrangements more commonly observed. The related imidazolinium salt, [2-MeC3N2H6][B5O6(OH)4] (13), has also been characterised by XRD studies. Compound 13 is isostructural with 3. Thermal properties (TGA/DSC) indicate decomposition to B2O3via [NMC][(B5O8)n] intermediates.

AB - The preparation of [NMC][B5O6(OH)4] {NMC = 2-MeC3N2H4 (3),1-MeC3N2H4 (4), 4-MeC3N2H4 (5), 1,2-Me2C3N2H3 (6), 1,2,3-Me3C3N2H2 (7), 1-EtC3N2H4 (8), 2-EtC3N2H4 (9), 2-Et-4-MeC3N2H3 (10) 1-Et-3-MeC3N2H3 (11) and 2-iPrC3N2H4 (12)} salts are reported. Compounds were characterised by spectroscopy (NMR and IR) and by single crystal XRD (6, 7, 9, 10, 12) studies. All structures show extensive H-bonded networks and 7 displays the first example of reciprocal paired αααα anion–anion interactions. These are facilitated by the pentaborate boroxole rings being significantly distorted (boat) from the near-planar arrangements more commonly observed. The related imidazolinium salt, [2-MeC3N2H6][B5O6(OH)4] (13), has also been characterised by XRD studies. Compound 13 is isostructural with 3. Thermal properties (TGA/DSC) indicate decomposition to B2O3via [NMC][(B5O8)n] intermediates.

U2 - 10.1016/j.poly.2014.04.019

DO - 10.1016/j.poly.2014.04.019

M3 - Article

SN - 0277-5387

VL - 77

SP - 96

EP - 102

JO - Polyhedron

JF - Polyhedron

ER -

Synthesis and X-ray structural studies of pentaborate(1−) salts containing substituted imidazolium cations

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