Synthesis and Properties of Sulfo and Alkylsulfamoyl Substituted CuII and NiII Phthalocyanines Bearing 1-Benzotryazolyl and 4-(1-Methyl-1-phenylethyl)phenoxy Groups

Synthesis of Cu(II) and Ni(II) Phthalocyanines Bearing Nitro and 4-(1-Methyl-1-phenylethyl)phenoxy Groups

“…As it was shown previously, [26][27][28] the mix-substituted phthalocyanines without aliphatic substituents but having both donor oxyaryl and acceptor benzotriazolyl functional groups exhibit mesomorphic properties as well as a tendency to vitrify (Figure 1). While the presence of only 1-benzotriazole groups on periphery of homosubstituted phthalocyanines is not accompanied by the appearance of liquid crystalline phases.…”

“…In contrast, the introduction of the octadecylsulfamoyl group leads to a decrease of temperature of the indicated phase transition to 108 °C and to an expansion of the mesophase existence temperature range to 89 °C. [26] Therefore, our studies showed a significant change of mesomorphic behavior, crystalline phase thermostability and the manifestation of glass state due to variation of the oxyaryl group structure acting as electron donor substituent. At the same time, the influence of the electron-withdrawing group (EWG) nature on the mesomorphic behavior of the studied phthalocyanines has not been investigated.…”

“…At the same time, the influence of the electron-withdrawing group (EWG) nature on the mesomorphic behavior of the studied phthalocyanines has not been investigated. Structural formula of mix-substituted phthalocyanines and their metal complexes (1a-p) with four peripheral benzotriazolyl and oxyaryl fragments; [26][27][28] 4-(1-methyl-1-phenylethyl)phenoxy substituent is framed.…”

Effect of the Nature of Substituents and Metal Atom on Mesomorphic Properties of Octasubstituted phthalocyanines with 4-(1-methyl-1-phenylethyl)phenoxy Groups

“…Для исследований были использованы образцы синтезированных ранее [15][16][17][18] высоко симметричных производных фталоцианина с фрагментами 4-(1-метил-1-фенилэтил)фенола 1, а также соединений, содержащих электроно-акцепторные нитрогруппы 2-4 или фрагменты 1-бензотриазола 5-7.…”

“…1 приведены значения МР для соединений 1-7, а также результаты прогноза мезоморфизма, характерного для ДМ, в сравнении с экспериментальными данными [16,17,20,21] Как следует из данных табл. 1, результаты прогноза достаточно хорошо коррелируют с экспериментальными данными (достоверность на уровне 75 %).…”