Comment on Couzi
            <i>et al</i>
            . (2018): a phenomenological model for structural transitions in incommensurate alkane/urea inclusion compounds

Toudic, Bertrand; Guérin, Laurent; Mariette, Céline; Frantsuzov, Ilya; Rabiller, Philippe; Écolivet, C.; Hollingsworth, Mark D.

doi:10.1098/rsos.182073

Cited by 3 publications

(8 citation statements)

References 11 publications

(35 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As Toudic et al [2] suggest that our data reported previously [4] for phase II were (in their words) ‘on the wrong phase', they make the further claim that our ‘phenomenological description of the phase behaviour in n -nonadecane/urea is contrary to reliable experimental measurements'. In this Reply, we respond to the issues raised in the Comment of Toudic et al [2].…”

mentioning

confidence: 47%

“…This model is an alternative interpretation to that proposed by Toudic et al . in the work cited in their Comment [2].…”

mentioning

confidence: 99%

“…In their Comment [2], Toudic et al focus on one point, specifically the claim that our previously published [4] single-crystal X-ray diffraction study on n -nonadecane/urea ‘cannot be used to discuss the sequence of phases in this compound ' because of the contention that the reported data at 147 K are too close in temperature to the so-called II ↔ ‘III' transition, from which they suggest that our data from phase II are actually from phase ‘III'. As Toudic et al [2] suggest that our data reported previously [4] for phase II were (in their words) ‘on the wrong phase', they make the further claim that our ‘phenomenological description of the phase behaviour in n -nonadecane/urea is contrary to reliable experimental measurements'. In this Reply, we respond to the issues raised in the Comment of Toudic et al [2].…”

mentioning

confidence: 99%

“…have focused upon in their recent Comment [2]. In addition, Toudic et al published an earlier Comment [7] on our previous X-ray diffraction study [4], in which they focused on exactly the same point as in their new Comment [2].…”

mentioning

confidence: 99%

See 3 more Smart Citations

Reply to comment on Couzi et al . (2018): a phenomenological model for structural phase transitions in incommensurate alkane/urea inclusion compounds

et al. 2019

View full text Add to dashboard Cite

In a recent paper (Couzi et al. 2018 R. Soc. open sci. 5 , 180058. ( doi:10.1098/rsos.180058 )), we proposed a new phenomenological model to account for the I↔II↔“III” phase sequence in incommensurate n -alkane/urea inclusion compounds, which represents an alternative interpretation to that proposed in work of Toudic et al. In a Comment (Toudic et al. 2019 R. Soc. open sci. 6 , 182073. ( doi:10.1098/rsos.182073 )), Toudic et al. have questioned our assignment of the superspace group of phase II of n -nonadecane/urea, which they have previously assigned, based on a (3 + 2)-dimensional superspace, as C222 1 (00 γ )(10 δ ). In this Reply, we present new results from a comprehensive synchrotron single-crystal X-ray diffraction study of n -nonadecane/urea, involving measurements as a detailed function of temperature across the I↔II↔“III” phase transition sequence. Our results demonstrate conclusively that “main reflections” ( h, k, l , 0) with h+k odd are observed in phase II of n -nonadecane/urea (including temperatures in phase II that are just below the transition from phase I to phase II), in full support of our assignment of the (3+1)-dimensional superspace group P2 1 2 1 2 1 (00 γ ) to phase II. As our phenomenological model is based on phase II and phase “III” of this incommensurate material having the same (3+1)-dimensional superspace group P2 1 2 1 2 1 (00 γ ), it follows that the new X-ray diffraction results are in full support of our phenomenological model.

show abstract

mentioning

confidence: 47%

“…This model is an alternative interpretation to that proposed by Toudic et al . in the work cited in their Comment [2].…”

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Reply to comment on Couzi et al . (2018): a phenomenological model for structural phase transitions in incommensurate alkane/urea inclusion compounds

et al. 2019

View full text Add to dashboard Cite

show abstract

“…They argue in favor of a single ferroelastic phase transition described in the (a, b) plane [26,44]. We strongly contested this work [45,46]. Here we present high-resolution synchrotron data which prove the originality of the phase transitions when described by taking into account their aperiodic feature by construction.…”

Section: Introductionmentioning

confidence: 59%

High spatial resolution studies of phase transitions within organic aperiodic crystals

et al. 2020

Self Cite

View full text Add to dashboard Cite

The understanding of the symmetry breakings within crystals that are aperiodic by construction is actually very limited. Quasicrystals and incommensurate composite crystals may potentially allow such studies. We focus on the phase transitions of the aperiodic n-nonadecane/urea which recovers a translational symmetry within a four-dimensional space at room temperature. High-resolution neutron and synchrotron studies are reported as a function of the temperature on this organic crystal which presents an exceptional mosaicity. They reveal the richness of such approach, showing the appearance of very long wavelength supplementary intermodulations. This work generalizes the Landau theory to incommensurate composite crystals.

show abstract

Phase transitions within crystals that are aperiodic by construction

Mariette

Rabiller²,

Guérin³

et al. 2022

Phys. Rev. B

Self Cite

View full text Add to dashboard Cite

Comment on Couzi et al . (2018): a phenomenological model for structural transitions in incommensurate alkane/urea inclusion compounds

Abstract: This article has been edited by the Royal Society of Chemistry, including the commissioning, peer review process and editorial aspects up to the point of acceptance.

Cited by 3 publications

References 11 publications

Reply to comment on Couzi et al . (2018): a phenomenological model for structural phase transitions in incommensurate alkane/urea inclusion compounds

Reply to comment on Couzi et al . (2018): a phenomenological model for structural phase transitions in incommensurate alkane/urea inclusion compounds

High spatial resolution studies of phase transitions within organic aperiodic crystals

Phase transitions within crystals that are aperiodic by construction

Contact Info

Product

Resources

About