Thermodynamic study of the incommensurate phase transitions in crystalline bis(4-chlorophenyl)sulfone

Saito, Kazuya; Kamio, Hiroyuki; Kikuchi, Kôichi; Ikemoto, Isao

doi:10.1016/0040-6031(90)80403-l

Cited by 10 publications

(2 citation statements)

References 23 publications

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“…Raman scattering experiments [5] show the softening of a mode related to the twisting of the chlorophenyl rings. The existence of a lock-in transition at 115 K has been reported from 35CI NQR [3,6] and calorimetric [7] experiments. Nevertheless.…”

Section: Introductionmentioning

confidence: 84%

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The incommensurate phase of 4,4'-dichlorobiphenyl sulphone reinvestigated by³⁵Cl NQR

Schneider¹,

Wolfenson²,

Brunetti³

1994

J. Phys.: Condens. Matter

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In order Lo acquire new informntion about the normal-incommensurate (IC) phase transition and to check the existence of a lock-in transition in 4,4'-dichlombiphenyl sulphone (4.4'-0Css), a comprehensive "Cl nuclear quadrupole resonance (NQR) study is reported.Detailed NOR mwurements of frequency, line width and spin relaxation time ( T I ) were obtained in the temperature range 80-270 K. The results show that the IC phose is present from 1.50 K down to 80 K. The behaviour of the NQR spectrum in the trmsition region suggests that the IC modulation IS dominated by the first-order term in the order panmeter. The tt values at the p e L s of the IC specmm are quite different, suggesting strong onharmonic effects. No lock-in rrmsition was detected at 115 K. Small changer in the temperature behaviour of the frequency and the tl of the low-frequency IC peak were observed from temperatures lower than 110 K. Neither impurities nor thermal hysteresis effects were detected.

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Section: Introductionmentioning

confidence: 84%

“…The T: values show a linear dependence only for temperatures lower than 110 K. The resulting fitting parameters of expression (7) for T," are…”

Section: Spin-lattice Relamtion Timementioning

confidence: 97%

The incommensurate phase of 4,4'-dichlorobiphenyl sulphone reinvestigated by³⁵Cl NQR

Schneider¹,

Wolfenson²,

Brunetti³

1994

J. Phys.: Condens. Matter

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Structure and dynamics of a series of crystals of butterfly-like molecules as studied by 35Cl NQR, and 1H and 19F NMR

Eguchi

Nakamura

1995

Journal of Molecular Structure

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Incommensurate crystal-instability and a role of internal degrees of freedom in bis (4-chlorophenyl) sulfone molecules

Saito

Kikuchi

Ikemoto

1992

Solid State Communications

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Thermodynamic study of the incommensurate phase transitions in crystalline bis(4-chlorophenyl)sulfone

Cited by 10 publications

References 23 publications

The incommensurate phase of 4,4'-dichlorobiphenyl sulphone reinvestigated by³⁵Cl NQR

The incommensurate phase of 4,4'-dichlorobiphenyl sulphone reinvestigated by³⁵Cl NQR

Structure and dynamics of a series of crystals of butterfly-like molecules as studied by 35Cl NQR, and 1H and 19F NMR

Incommensurate crystal-instability and a role of internal degrees of freedom in bis (4-chlorophenyl) sulfone molecules

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Thermodynamic study of the incommensurate phase transitions in crystalline bis(4-chlorophenyl)sulfone

Cited by 10 publications

References 23 publications

The incommensurate phase of 4,4'-dichlorobiphenyl sulphone reinvestigated by35Cl NQR

The incommensurate phase of 4,4'-dichlorobiphenyl sulphone reinvestigated by35Cl NQR

Structure and dynamics of a series of crystals of butterfly-like molecules as studied by 35Cl NQR, and 1H and 19F NMR

Incommensurate crystal-instability and a role of internal degrees of freedom in bis (4-chlorophenyl) sulfone molecules

Contact Info

Product

Resources

About

The incommensurate phase of 4,4'-dichlorobiphenyl sulphone reinvestigated by³⁵Cl NQR

The incommensurate phase of 4,4'-dichlorobiphenyl sulphone reinvestigated by³⁵Cl NQR