Self-Organization of Azo Dye KD-2 in Floating Layers and Langmuir – Schaefer Films

Kazak, A. V.; Zhukova, L. N.; Kovaleva, M. I.; Чаусов, Д. Н.; Kuznetsov, M. M.; Gabdulsadykova, G. F.

doi:10.18083/lcappl.2018.3.74

Cited by 22 publications

(3 citation statements)

References 27 publications

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“…Water (with resistivity ρ = 18 MΩ•cm) used as a subphase was purified by Millipore Simplicity 158 systems. The initial coverage degree (с) of the water surface with phthalocyanine molecules was calculated according to the method published in [28].…”

Section: Methodsmentioning

confidence: 99%

Thin-film materials based on phthalocyanine derivatives: structure and physico-chemical properties

et al. 2019

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In order to establish the effect of the molecular structure of mix-substituted phthalocyanine derivatives on its supramolecular organization in thin-films, the floating layers of three A3B-type phthalocyanine derivatives were obtained. Their supramolecular organization was determined and it was found that the studied compounds form homogeneous stable floating layers on the water surface. Structure parameters of floating layers depend both on the length of aliphatic substituents (R = CnH2n+1) and the metal complexing agent. Ligands I and II form stable monolayer structures, which the layer packing periods increase with the elongation of aliphatic substituents: the lattice parameter (d) is 1.93 and 2.3 nm for ligands I (n = 6) and II (n = 8), correspondingly. During further compression of the formed monolayers, ligands I and II form stable bilayers, in which the arrangement of molecules remains similar to the structure of the previous monolayers. These bilayers contain minor inclusions of 3D aggregates. Metal complex III forms only stable monolayer (d = 2.06 nm), upon further compression of which 3D- aggregates included in the monolayer are formed.

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Section: Methodsmentioning

confidence: 99%

Thin-film materials based on phthalocyanine derivatives: structure and physico-chemical properties

et al. 2019

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“…%, где С -массовая доля растворенного вещества), на установке фирмы NT-MDT (Россия) при исходной степени покрытия поверхности с = 53 %. Начальную степень покрытия поверхности воды молекулами производного фталоцианина рассчитывали по методике, опубликованной в [41]. Скорость сжатия слоя составляла 55 см 2 /мин.…”

Section: экспериментunclassified

Self-Organization of A2B Type Boron Subphthalocyanine in Floating Layers and Langmuir-Schaefer Films

Kazak¹,

Dubinina²,

Чаусов³

et al. 2021

Liq. Cryst. and their Appl.

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Получены плавающие слои и пленки Ленгмюра-Шеффера субфталоцианина бора A 2 B типа. Построены модели face-on и edge-on монослоевых упаковок исследуемого соединения на поверхности раздела фаз воздух/вода и рассчитаны геометрические характеристики данных упаковок. Установлено, что площадь, приходящаяся на одну молекулу в плотнейшем face-on монослое, равна 1,99 нм 2 (А мол = 1,99 нм 2 ), edge-on монослое -1,02 нм 2 (А мол = 1,02 нм 2 ). Изучены спектральные характеристики исследуемого соединения в хлороформе и в пленках Ленгмюра-Шеффера. В спектре пленки Ленгмюра-Шеффера по сравнению со спектром раствора в хлороформе полосы поглощения смещены в длинноволновую область и незначительно уширены. Данные изменения спектров пленок Ленгмюра-Шеффера мы объясняем наличием межмолекулярных π-π взаимодействий push-pull молекул субфталоцианина в этих пленках и хаотическим расположением агрегатов в них. Методом атомно-силовой микроскопии установлена толщина перенесенной пленки (d = 0,7 нм).Ключевые слова: субфталоцианин, модель надмолекулярной упаковки, плавающие слои, пленки Ленгмюра-Шеффера, атомно-силовая микроскопия, оптические свойства.

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“…The initial coverage degree of water surface with the phthalocyanine molecules was calculated according to the known method. 21 The layer formation process at the water/air interface was investigated in situ by the Brewster angle microscopy using an Optrel 3000 microscope (KSV Instruments, Finland). The structural organization of floating layers was studied by diffraction in the sliding geometry (GID, grazing incidence diffraction) and reflectometry (XRR, X-ray reflectivity) methods.…”

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confidence: 99%

Floating layer structure of mesogenic phthalocyanine of A3B-type

Kazak

Марченкова

Смирнова

et al. 2020

Mendeleev Communications

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Self-Organization of Azo Dye KD-2 in Floating Layers and Langmuir – Schaefer Films

Cited by 22 publications

References 27 publications

Thin-film materials based on phthalocyanine derivatives: structure and physico-chemical properties

Thin-film materials based on phthalocyanine derivatives: structure and physico-chemical properties

Self-Organization of A2B Type Boron Subphthalocyanine in Floating Layers and Langmuir-Schaefer Films

Floating layer structure of mesogenic phthalocyanine of A3B-type

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