Discotic liquid crystals of transition metal complexes, 31: establishment of mesomorphism and thermochromism of bis[1,2-bis(4-n-alkoxyphenyl)ethane-1,2-dithiolene]nickel complexes

Preparation and evaluation of nickelmesogen for micropacked gas chromatography

“…Ohta et al in their previous papers [20] reported that the similar C 11 O-Ni complex gives only one mesophase. But recently they revealed that there are two differently colored mesophases [18]. Here we also obtained the same results as in Ohta's recent work ( Fig.…”

“…The synthetic procedures were as those of Horie et al [18] and Crowley et al [19] but with slight modification (Fig. 1).…”

Neutral d8 metal bis-dithiolene complexes: Synthesis, electronic properties and applications

“…Types 3 and 4 complexes which can bear different R substituents of the phenyl rings have been widely studied by Ohta et al [32][33][34][35][36]. Until then, the synthesis of the complexes, by the benzoin condensation, with alkyl/alkoxy chain-substituted benzoins proved impossible.…”

“…Two series of complexes with long alkyl/alkoxy chains (C n H 2n+1 or OC n H 2n+1 ) were studied [34]. They exhibit two, differently colored, discotic lamellar (DL) mesophases for n ≥ 10.…”

A charge transfer salt consisted of bis(maleonitriledithiolato)zincate dianion and 1,1'-didecyl-4,4'-bipyridinium exhibiting uncommon nematic mesophase behavior

“…The mesomorphous neutral nickel-dithiolene complexes, with focus on the aspect of mesophase with crystalline to liquid crystal transition behaviors, have been studied by Giroud et al [16][17][18][19][20]. Most recently, Fourmigué et al have reported multifunctional neutral gold-dithiolene complexes, which show the magnetic mesophases with strongly near infrared (NIR) absorption band around 1.5 μm [21], or a hexagonal columnar mesophase with a high sensitivity of magnetic interactions to external stimuli [22].…”