Journal article
Hydrogen Bonding in the Water Stabilized Structure of the Modified Unsymmetrically Substituted Viologen Chromophore, N-ethyl-N '-(2-phosphonoethyl)-4,4 '-bipyridylium Dichloride
Journal of Chemical Crystallography, Vol.40, pp.248-252
2010
Abstract
The crystal structure of the modified unsymmetrically N,N′-substituted viologen chromophore, N-ethyl-N′-(2-phosphonoethyl)-4,4′-bipyridinium dichloride 0.75 hydrate (1) has been determined. Crystals are triclinic, space group P−1 with Z = 2 in a cell with a = 7.2550(1), b = 13.2038(5), c = 18.5752(7) Å, α = 86.495(3), β = 83.527(2), γ = 88.921(2)°. The two independent but pseudo-symmetrically related cations in the asymmetric unit form one-dimensional hydrogen-bonded chains through short homomeric phosphonic acid O–H···O links [2.455(4), 2.464(4) Å] while two of the chloride anions are similarly strongly linked to phosphonic acid groups [O–H···Cl, 2.889(4), 2.896(4) Å]. The other two chloride anions together with the two water molecules of solvation (one with partial occupancy) form unusual cyclic hydrogen-bonded bis(Cl···water) dianion units which lie between the layers of bipyridylium rings of the cation chain structures with which they are weakly associated.
Details
- Title
- Hydrogen Bonding in the Water Stabilized Structure of the Modified Unsymmetrically Substituted Viologen Chromophore, N-ethyl-N '-(2-phosphonoethyl)-4,4 '-bipyridylium Dichloride
- Authors
- Graham Smith (Corresponding Author) - Queensland University of TechnologyGeoffrey D. Will (Author) - Queensland University of TechnologyGregory J. Wilson (Author) - Commonwealth Scientific and Industrial Research Organisation
- Publication details
- Journal of Chemical Crystallography, Vol.40, pp.248-252
- Publisher
- Springer New York LLC
- DOI
- 10.1007/s10870-009-9642-9
- ISSN
- 1572-8854
- Grant note
- Australian Research Council Future Fellowship: FT120100674
- Organisation Unit
- School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 99737993302621
- Output Type
- Journal article
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