Journal article
SAXS anti-peaks reveal the length-scales of dual positive-negative and polar-apolar ordering in room-temperature ionic liquids
Chemical communications (Cambridge, England), Vol.48(42), pp.5103-5105
05/25/2012
DOI: 10.1039/c2cc30609c
PMID: 22523744
Abstract
Structural patterns that have the same spatial periodicity but a phase offset give rise to peaks and anti-peaks (negative-going peaks) at the same q value in the SAXS structure function S(q). As an example, in ionic liquids we often find charge alternation, and at the distance where one finds a density enhancement of charges of the same type one also finds a depletion of charges of opposite sign. Another such situation arises with polar-apolar densities. At distances where there is enhancement of same-type (polar-polar or apolar-apolar) densities there is also a depletion of opposite-type (polar-apolar) density. This gives rise to prepeaks and what we call same spatial periodicity anti-prepeaks.
Details
- Title: Subtitle
- SAXS anti-peaks reveal the length-scales of dual positive-negative and polar-apolar ordering in room-temperature ionic liquids
- Creators
- Hemant K Kashyap - Department of Chemistry, University of Iowa, Iowa City, Iowa 52242, USAJeevapani J HettigeHarsha V R AnnapureddyClaudio J Margulis
- Resource Type
- Journal article
- Publication Details
- Chemical communications (Cambridge, England), Vol.48(42), pp.5103-5105
- DOI
- 10.1039/c2cc30609c
- PMID
- 22523744
- NLM abbreviation
- Chem Commun (Camb)
- ISSN
- 1359-7345
- eISSN
- 1364-548X
- Publisher
- Royal Society of Chemistry; England
- Language
- English
- Date published
- 05/25/2012
- Academic Unit
- Chemistry
- Record Identifier
- 9983985929702771
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