4-(4-Propoxybenzoyloxy)benzoic acid

Muhammad, Khushi; Rauf, M. Khawar; Ebihara, Masahiro; Hameed, Shahid

doi:10.1107/s1600536808016942

Cited by 2 publications

(3 citation statements)

References 15 publications

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“…were found to exist as linear hydrogen bonded dimers by X-ray diffraction analysis [15,16]. The conversion of benzoyloxy benzoic acids to their hydroxybutyl esters (4a-4q) was accompanied by lowering of melting points.…”

Section: Synthesismentioning

confidence: 97%

Facile synthesis and mesomorphic properties of 4-hydroxybutyl 4-(4-alkoxybenzoyloxy) benzoate mesogens

et al. 2011

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A series of alkoxy-substituted hydroxybutyl dibenzoates and four halogen-substituted compounds were synthesised in quantitative yields. The structures of the molecules were confirmed by Fourier transform infra-red, 1 H nuclear magnetic resonance (NMR) and 13 C-NMR spectroscopy and gas chromatography-mass spectrometry. The stabilities of the synthesised compounds were determined by thermogravimetric analysis. The mesomorphic behaviour was investigated using differential scanning calorimetry, polarising optical microscopy and wide-angle X-ray diffraction (WAXD) analysis. It was observed that the compounds with alkoxy tails form the typical fan-like texture of a smectic liquid crystalline phase between the melting point and clearing temperature. WAXD experiments confirmed the formation of smectic liquid crystalline phases. The halogen-substituted compounds were incapable of forming the liquid crystalline phase on heating.

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Section: Synthesismentioning

confidence: 97%

Facile synthesis and mesomorphic properties of 4-hydroxybutyl 4-(4-alkoxybenzoyloxy) benzoate mesogens

et al. 2011

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“…In the present report, the crystal structure of (I) is being presented. Bond lengths and angles are within the normal ranges as given for benzoyloxybenzoic acids (Muhammad et al, 2008;Hartung et al, 1997). The C7-O1 and C7-O2 bond lengths are 1.205 3and 1.369 (3) Å, respectively, that reflect their double and single bond character.…”

Section: Related Literaturementioning

confidence: 55%

“…For studies of aromatic carboxylic acids and their applications, see: Naoum et al (2008); Nazir et al (2008a,b); Gabert et al (2006); Aranzazu et al (2006); Hussain et al (2005); Shafiq et al (2005); Ahmad et al (2003); Ribeiro et al (2008); Hameed & Rama (2004); For related structures, see: Muhammad et al (2008); Hartung et al (1997) Experimental (3) 171Symmetry code: (i) Àx þ 2; Ày þ 1; Àz þ 1.…”

Section: Related Literaturementioning

confidence: 99%