Macroheterocycles最新文献_第5页

Competing Role of Water in Inclusion of Indomethacin and Volatile Organic Compounds by Native Cyclodextrins 水在天然环糊精包合吲哚美辛和挥发性有机物中的竞争作用

IF 1.4 4区化学

Macroheterocycles Pub Date : 2022-01-01 DOI: 10.6060/mhc224319g

V. Y. Osel’skaya, A. K. Gatiatulin, A. Klimovitskii, M. Ziganshin, V. Gorbatchuk

引用次数: 2

The Interaction of Deuteroporphyrin IX and its Dimethyl Ester with Oligoethylene Glycols 去卟啉IX及其二甲酯与低聚乙二醇的相互作用

IF 1.4 4区化学

Macroheterocycles Pub Date : 2022-01-01 DOI: 10.6060/mhc213705r

T. K. Rocheva, D. V. Belykh

引用次数: 0

A Study on Cation-Dependent Resonance Energy Transfer in Crown-Containing Bischromophoric System Based on 4-Methoxyand 4-Styryl-1,8-naphthalimide 基于4-甲氧基和4-苯乙烯-1,8-萘酰亚胺的含冠双显色体系阳离子共振能量转移研究

IF 1.4 4区化学

Macroheterocycles Pub Date : 2022-01-01 DOI: 10.6060/mhc214029p

P. Panchenko, A. Polyakova, Y. Fedorov, O. Fedorova

{"title":"A Study on Cation-Dependent Resonance Energy Transfer in Crown-Containing Bischromophoric System Based on 4-Methoxyand 4-Styryl-1,8-naphthalimide","authors":"P. Panchenko, A. Polyakova, Y. Fedorov, O. Fedorova","doi":"10.6060/mhc214029p","DOIUrl":"https://doi.org/10.6060/mhc214029p","url":null,"abstract":"and 4-styryl-1,8-naphthalimide fragments was obtained using copper(I)-catalyzed azide-alkyne 1,3-dipolar cycloaddition click reac-tion. Excitation of BNI with 360 nm light results in resonance energy transfer (RET) in the system and formation of a fluorescence band at 617 nm which corresponds to the emission of 4-styrylnaphthalimide chromophore. Analysis of the steady-state UV-Vis absorption and fluorescence spectra showed that the efficiency of energy transfer ( Φ RET ) in the free ligand BNI was as high as 65%. The estimated Φ RET value was found to be considerably lower compared to that obtained by the theoretical calculations using the inductive-resonance Förster model (99.98%). This difference can be explained by the occurrence of photoinduced electron transfer (PET) process from the receptor group to the excited 4-alkoxynaphthalimide residue competing with energy transfer. The possibility of PET was confirmed by the quantum chemical calculations using PM6 method. Binding of silver cations by BNI in an aqueous solution at pH 7.4 (HEPES buffer) caused fluorescence enhancement at 620 nm which was related to the inhibition of PET upon com-plexation and increase in RET efficiency as a result. Coordination of Ag + with the crown ether moiety was demon-strated by the 1 H NMR spectroscopy.","PeriodicalId":18090,"journal":{"name":"Macroheterocycles","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71167583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Behaviour Peculiarities of Some Dimeric β-Cyclodextrin Derivatives under Reaction with Organic Acids of Various Nature 一些二聚体β-环糊精衍生物与不同性质有机酸反应的行为特性

IF 1.4 4区化学

Macroheterocycles Pub Date : 2022-01-01 DOI: 10.6060/mhc224126g

N. V. Kutyasheva, G. I. Kurochkina, Konstantin K. Ilinich, M. K. Grachev

引用次数: 1

Electrochemical Deposition of Aggregated Cobalt Sulfophthalocyanines at Gold Surfaces in Alkaline Solutions 在碱性溶液中金表面聚合的硫酞菁钴的电化学沉积

IF 1.4 4区化学

Macroheterocycles Pub Date : 2022-01-01 DOI: 10.6060/mhc224233k

M. A. Kovanova, P. D. Derbeneva, A. S. Postnov, T. Tikhomirova, A. Vashurin

{"title":"Electrochemical Deposition of Aggregated Cobalt Sulfophthalocyanines at Gold Surfaces in Alkaline Solutions","authors":"M. A. Kovanova, P. D. Derbeneva, A. S. Postnov, T. Tikhomirova, A. Vashurin","doi":"10.6060/mhc224233k","DOIUrl":"https://doi.org/10.6060/mhc224233k","url":null,"abstract":"In this paper, the method of cyclic voltammetry was used for the first time to study the electrochemical behavior of series of peripheral substituted cobalt phthalocyanines with consistently changing sulfonated fragments (cobalt phthalocyanine tetrasulfonic acid ( CoPcI ), cobalt tetra-4-[(6-sulfo-2-naphthyl)oxy]phthalocyanine ( CoPcII ), cobalt tetra-4-[(6,8-disulfo-2-naphthyl)oxy]phthalocyanine ( CoPcIII ), cobalt tetra-4-[(4-sulfo-1-naphthyl)oxy]-tetra-5-(1-benzotriazolyl)phthalocyanine ( CoPcIV ), cobalt tetra-4-[(1,6-disulfo-2-naphthyl)oxy]-tetra-5-(1-benzotriazolyl)phthalocyanine ( CoPcV ), cobalt tetra-4-[(1,6-disulfo-2-naphthyl)oxy]-tetra-5-(nitro)phthalocyanine ( CoPcVI ), cobalt tetra-4-{4-[1-methyl-1-(4-sulfophenyl)ethyl]phenoxy}-tetra-5-(nitro)phthalocyanine ( CoPcVII ), and cobalt octa-4,5-{4-[1-methyl-1-(4-sulfophenyl)ethyl]phenoxy}phthalocyanine ( CoPcVIII )) in an aqueous alkaline solution. Comparative analysis of the electrochemical behavior depending on the functional substitution in the macrocycle molecule was carried out. For all the compounds, central metal ion oxidation (Co 2+ → Co 3+ ) and reduction (Co 2+ → Co 1+ ) processes, as well as phthalocyanine ring activity were registered. Based on the occurrence of some peaks in the first scan numbers and the appearance/disappearance of other peaks, a hypothesis regarding the mechanism of electrodeposition of cobalt phthalocyanine derivatives at gold electrodes was formulated. It was shown that the electrodeposition process is generally independent on the nature of the substituent in the phthalocyanine macroring. It was also confirmed that react-ing species are adsorbed on the electrode surface without specific diffusion.","PeriodicalId":18090,"journal":{"name":"Macroheterocycles","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71168067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Catalytic activity of supramolecular dimethylamine- and diphenylphosphine-containing RhIII peroxodichloro-complexes on the example of studying the kinetics of homogeneous dehydrogenation of formic acid 含二甲胺和二苯基膦的超分子过氧化二氯配合物的催化活性以甲酸均相脱氢动力学研究为例

IF 1.4 4区化学

Macroheterocycles Pub Date : 2022-01-01 DOI: 10.6060/mhc224591g

E. Guseva, A. V. Potapova, E. V. Fesik

引用次数: 0

A New Iodovinyl Derivative of Methyl Pyropheophorbide d Obtained via Takai Olefination Reaction 高井烯化反应制得一种新的邻苯二甲酸甲酯碘乙烯基衍生物

IF 1.4 4区化学

Macroheterocycles Pub Date : 2022-01-01 DOI: 10.6060/mhc224669b

E. S. Belyaev, Anastasiya S. Toms

引用次数: 0

Stability of Manganese(II) Phthalocyanine Films in Ambient Air 锰(II)酞菁膜在环境空气中的稳定性