Effects of Lateral Substituents on Mesomorphic Behavior. II. 4-(4-Alkoxybenzylideneamino)phenyl Benzoates

Matsunaga, Yoshio; Mukougawa, T.; Saito, Yoshihiko

doi:10.1080/10587259808047118

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…The N-I transition temperatures of the 2-Me derivatives are higher than those of the 3-Me derivatives. The difference found here is much larger than that for compound 1 and decreases as the alkyl chain length increases; that is 33°C when n = I and 5°C when n = [8]. Similarly, the lower homologous members of the 2-CI derivative give higher transition temperatures than those of the 3-CI derivative but the difference at n = 1 is smaller and this relation is reversed above n = 5.…”

Section: Resultscontrasting

confidence: 49%

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Effects of Lateral Substituents on Mesomorphic Behavior. III. N-4-(4-Alkoxybenzoyloxy)benzylidene]-anilines

Matsunaga

Miyake

Rikimaru

et al. 1999

Molecular Crystals and Liquid Crystals Science and Technology.

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The mesomorphic properties of N-[4-(4-alkoxybenzoyloxy)benzylidene]-2-and -3-X-aniline$, where X = Me,F,CI,Br or I, were examined. The 2-Me derivatives give higher nematicisotropic transition temperatures than the 3-Me derivatives, whereas the reverse is true for the F compounds. The intersection between the plots of the transition temperatures of the 2-X and 3-X derivatives against the alkyl chain length is found for the CI, Br, and I compounds, respectively. The smectic A-nematic transition temperature recorded for the heptyloxy member is promoted by the 3-X substitution as much as 32°C (X = F ) and 16" (X = Cl).

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Section: Resultscontrasting

confidence: 49%

“…that the presence of the flexible alkyl chain cannot be ignored in the consideration of the molecular breadth [8].…”

Section: Resultsmentioning

confidence: 99%

Effects of Lateral Substituents on Mesomorphic Behavior. III. N-4-(4-Alkoxybenzoyloxy)benzylidene]-anilines

Matsunaga

Miyake

Rikimaru

et al. 1999

Molecular Crystals and Liquid Crystals Science and Technology.

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Mesomorphic Properties of 3-Pyridyl 4-(4-Alkoxybenzyleneamino) benzoates and Isomeric Compounds

Matsunaga

Akagawa

Satou

et al. 2000

Molecular Crystals and Liquid Crystals Science and Technology.

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The nematic-isotropic transition temperature of 3-pyridyl 4-(4-propoxybenzylideneamino) benzoate is higher by 13°C than that of the phenyl analogue and the smectic A-nematiclisotropic transition is also promoted by the replacement of the terminal moiety as much as 23°C. The enhancement of both the nematic and smectic thermal stabilities decreases as the terminal alkyl chain length increases.Similar changes in the mesomorphic properties by the replacement are recorded for N-[4-(4-alkoxybenzoyloxy) benzylidene] anilines and other isomeric compounds.

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Mesomorphic Behavior of 4-t-Butylphenyl 4-(4-Alkoxybenzylideneamino) benzoates and 4-(4-Alkoxybenzylideneamino)-phenyl4-t-Butylbenzoates

Matsunaga

1999

Molecular Crystals and Liquid Crystals Science and Technology.

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Effects of Lateral Substituents on Mesomorphic Behavior. II. 4-(4-Alkoxybenzylideneamino)phenyl Benzoates

Cited by 3 publications

References 6 publications

Effects of Lateral Substituents on Mesomorphic Behavior. III. N-4-(4-Alkoxybenzoyloxy)benzylidene]-anilines

Effects of Lateral Substituents on Mesomorphic Behavior. III. N-4-(4-Alkoxybenzoyloxy)benzylidene]-anilines

Mesomorphic Properties of 3-Pyridyl 4-(4-Alkoxybenzyleneamino) benzoates and Isomeric Compounds

Mesomorphic Behavior of 4-t-Butylphenyl 4-(4-Alkoxybenzylideneamino) benzoates and 4-(4-Alkoxybenzylideneamino)-phenyl4-t-Butylbenzoates

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