In:
Acta Crystallographica Section E Crystallographic Communications, International Union of Crystallography (IUCr), Vol. 78, No. 9 ( 2022-09-01), p. 905-911
Abstract:
The crystal structures of ligand precursor bis(imidazolium) salts 1,1′-methylenebis(3- tert -butylimidazolium) dibromide monohydrate, C 15 H 26 N 4 + ·2Br − ·H 2 O or [ t Bu NHC 2 Me][Br] 2 ·H 2 O, 1,1′-(ethane-1,2-diyl)bis(3- tert -butylimidazolium) dibromide dihydrate, C 16 H 28 N 4 + ·2Br − ·2H 2 O or [ t Bu NHC 2 Et][Br] 2 ·2H 2 O, 1,1′-methylenebis[3-(2,4,6-trimethylphenyl)imidazolium] dibromide dihydrate, C 25 H 30 N 4 2+ ·2Br − ·2H 2 O or [ Mes NHC 2 Me][Br] 2 ·2H 2 O, and 1,1′-(ethane-1,2-diyl)bis[3-(2,4,6-trimethylphenyl)imidazolium] dibromide tetrahydrate, C 26 H 32 N 4 2+ ·2Br − ·4H 2 O or [ Mes NHC 2 Et][Br] 2 ·4H 2 O, are reported. At 293 K, [ t Bu NHC 2 Me][Br] 2 ·H 2 O crystallizes in the P 2 1 / c space group, while [ t Bu NHC 2 Et][Br] 2 ·2H 2 O crystallizes in the P 2 1 / n space group at 100 K. At 112 K, [ Mes NHC 2 Me][Br] 2 ·2H 2 O crystallizes in the orthorhombic space group Pccn while [ Mes NHC 2 Et][Br] 2 ·4H 2 O crystallizes in the P 2 1 / c space group at 100 K. Bond distances and angles within the imidazolium rings are generally comparable among the four structures. All four bis(imidazolium) salts co-crystallize with one to four molecules of water.
Type of Medium:
Online Resource
ISSN:
2056-9890
DOI:
10.1107/S2056989022008003
DOI:
10.1107/S2056989022008003/mw2188sup1.cif
DOI:
10.1107/S2056989022008003/mw2188sces01006_0msup2.hkl
DOI:
10.1107/S2056989022008003/mw2188est01043_0msup3.hkl
DOI:
10.1107/S2056989022008003/mw2188at01019_0masup4.hkl
DOI:
10.1107/S2056989022008003/mw2188est01041d_0masup5.hkl
DOI:
10.1107/S2056989022008003/mw2188sces01006_0msup6.cml
DOI:
10.1107/S2056989022008003/mw2188est01043_0msup7.cml
DOI:
10.1107/S2056989022008003/mw2188at01019_0masup8.cml
DOI:
10.1107/S2056989022008003/mw2188est01041d_0masup9.cml
Language:
Unknown
Publisher:
International Union of Crystallography (IUCr)
Publication Date:
2022
detail.hit.zdb_id:
2843762-7
detail.hit.zdb_id:
2041947-8
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