Mesogenic behaviour of (4-alkoxybenzylideneamino)bromobenzene, (4-alkoxybenzylideneamino)benzenethiols, and thiolatonickel complexes of the thiols

Richard M. Moutloali; James Darkwa; Emmanuel Marfo-Owusu

doi:10.1080/02678290500502475

Mesogenic behaviour of (4-alkoxybenzylideneamino)bromobenzene, (4-alkoxybenzylideneamino)benzenethiols, and thiolatonickel complexes of the thiols

Richard M. Moutloali, James Darkwa, Emmanuel Marfo-Owusu

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The synthesis, characterization and mesogenic properties of Schiff base compounds arising from the reaction of 4-alkoxybenzaldehydes with 4-aminothiophenol or 4-bromoaniline are described. Whereas the Schiff base thiol with two benzene rings in the molecule, HSC₆H₄NC(H)C ₆H₄OC₁₆H₃₃ (2), is non-mesogenic, the bromo analogue, BrC₆H₄NC(H)C₆H ₄OC₁₆H₃₃ (3), is mesogenic. The introduction of a third benzene ring into the molecular architecture of 2 and 3 produced thiol- and bromo-Schiff base compounds, HSC₆H₄NC(H)C ₆H₄OC(O)C₆H₄OC₁₆H ₃₃ and BrC₆H₄NC(H)C₆H ₄OC(O)C₆H₄OC₁₆H₃₃, respectively, that are both mesogenic. The thiol compounds react with nickelocene to form [(η⁵-C₅H₅) Ni(μ₂-SC₆H₄NC(H)C₆H ₄OC₁₆H₃₃)]₂ and [(η⁵- C₅H₅)Ni(μ₂-SC₆H ₄NC(H)C₆H₄OC (O)-C₆H ₄OC₁₆H₃₃)]₂, but the nickel complexes are not mesogenic.

Original language	English
Pages (from-to)	321-326
Number of pages	6
Journal	Liquid Crystals
Volume	33
Issue number	3
DOIs	https://doi.org/10.1080/02678290500502475
Publication status	Published - Mar 2006
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

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@article{90178c002fcd4526b15c1bcd690a67a6,

title = "Mesogenic behaviour of (4-alkoxybenzylideneamino)bromobenzene, (4-alkoxybenzylideneamino)benzenethiols, and thiolatonickel complexes of the thiols",

abstract = "The synthesis, characterization and mesogenic properties of Schiff base compounds arising from the reaction of 4-alkoxybenzaldehydes with 4-aminothiophenol or 4-bromoaniline are described. Whereas the Schiff base thiol with two benzene rings in the molecule, HSC6H4NC(H)C 6H4OC16H33 (2), is non-mesogenic, the bromo analogue, BrC6H4NC(H)C6H 4OC16H33 (3), is mesogenic. The introduction of a third benzene ring into the molecular architecture of 2 and 3 produced thiol- and bromo-Schiff base compounds, HSC6H4NC(H)C 6H4OC(O)C6H4OC16H 33 and BrC6H4NC(H)C6H 4OC(O)C6H4OC16H33, respectively, that are both mesogenic. The thiol compounds react with nickelocene to form [(η5-C5H5) Ni(μ2-SC6H4NC(H)C6H 4OC16H33)]2 and [(η5- C5H5)Ni(μ2-SC6H 4NC(H)C6H4OC (O)-C6H 4OC16H33)]2, but the nickel complexes are not mesogenic.",

author = "Moutloali, {Richard M.} and James Darkwa and Emmanuel Marfo-Owusu",

year = "2006",

month = mar,

doi = "10.1080/02678290500502475",

language = "English",

volume = "33",

pages = "321--326",

journal = "Liquid Crystals",

issn = "0267-8292",

publisher = "Taylor and Francis Ltd.",

number = "3",

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TY - JOUR

T1 - Mesogenic behaviour of (4-alkoxybenzylideneamino)bromobenzene, (4-alkoxybenzylideneamino)benzenethiols, and thiolatonickel complexes of the thiols

AU - Moutloali, Richard M.

AU - Darkwa, James

AU - Marfo-Owusu, Emmanuel

PY - 2006/3

Y1 - 2006/3

N2 - The synthesis, characterization and mesogenic properties of Schiff base compounds arising from the reaction of 4-alkoxybenzaldehydes with 4-aminothiophenol or 4-bromoaniline are described. Whereas the Schiff base thiol with two benzene rings in the molecule, HSC6H4NC(H)C 6H4OC16H33 (2), is non-mesogenic, the bromo analogue, BrC6H4NC(H)C6H 4OC16H33 (3), is mesogenic. The introduction of a third benzene ring into the molecular architecture of 2 and 3 produced thiol- and bromo-Schiff base compounds, HSC6H4NC(H)C 6H4OC(O)C6H4OC16H 33 and BrC6H4NC(H)C6H 4OC(O)C6H4OC16H33, respectively, that are both mesogenic. The thiol compounds react with nickelocene to form [(η5-C5H5) Ni(μ2-SC6H4NC(H)C6H 4OC16H33)]2 and [(η5- C5H5)Ni(μ2-SC6H 4NC(H)C6H4OC (O)-C6H 4OC16H33)]2, but the nickel complexes are not mesogenic.

AB - The synthesis, characterization and mesogenic properties of Schiff base compounds arising from the reaction of 4-alkoxybenzaldehydes with 4-aminothiophenol or 4-bromoaniline are described. Whereas the Schiff base thiol with two benzene rings in the molecule, HSC6H4NC(H)C 6H4OC16H33 (2), is non-mesogenic, the bromo analogue, BrC6H4NC(H)C6H 4OC16H33 (3), is mesogenic. The introduction of a third benzene ring into the molecular architecture of 2 and 3 produced thiol- and bromo-Schiff base compounds, HSC6H4NC(H)C 6H4OC(O)C6H4OC16H 33 and BrC6H4NC(H)C6H 4OC(O)C6H4OC16H33, respectively, that are both mesogenic. The thiol compounds react with nickelocene to form [(η5-C5H5) Ni(μ2-SC6H4NC(H)C6H 4OC16H33)]2 and [(η5- C5H5)Ni(μ2-SC6H 4NC(H)C6H4OC (O)-C6H 4OC16H33)]2, but the nickel complexes are not mesogenic.

UR - http://www.scopus.com/inward/record.url?scp=33646813276&partnerID=8YFLogxK

U2 - 10.1080/02678290500502475

DO - 10.1080/02678290500502475

M3 - Article

AN - SCOPUS:33646813276

SN - 0267-8292

VL - 33

SP - 321

EP - 326

JO - Liquid Crystals

JF - Liquid Crystals

IS - 3

ER -

Mesogenic behaviour of (4-alkoxybenzylideneamino)bromobenzene, (4-alkoxybenzylideneamino)benzenethiols, and thiolatonickel complexes of the thiols

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