Effect of polymorphism on the luminescent properties on silver(I) nitrate complexes with 2-amino-5-phenylpyrazine

Yu A. Malakhova; T. S. Sukhikh; M. I. Rakhmanova; K. A. Vinogradova

doi:10.1134/S0022476622030155

Effect of polymorphism on the luminescent properties on silver(I) nitrate complexes with 2-amino-5-phenylpyrazine

Переведенное название: Влияние полиморфизма на люминесцентные свойства комплексов нитрата серебра(I) с 2-амино-5-фенилпиразином

Yu A. Malakhova, T. S. Sukhikh, M. I. Rakhmanova, K. A. Vinogradova

Факультет естественных наук

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

Аннотация

Реакция между AgNO3 и 2-амино-5-фенилпиразином (L) при мольном соотношении Ag:L = 1.5:1 (время синтеза 3-4 ч) в ацетонитрильном растворе приводит к образованию комплекса [AgL2NO3] (1). По данным рентгеноструктурного анализа к каждому атому серебра координированы две молекулы L атомом N1 пиразинового цикла и один анион NO3-. Полиморф 2 получен по реакции между AgNO3 и L при мольном соотношении 1:2 и при коротком времени синтеза (3-30 мин). Комплекс 2 состоит из двух фрагментов ([AgL2]+ и [AgL2(NO3)2]-), в которых атомы серебра имеют разное координационное окружение - почти линейное и искаженно-тетраэдрическое соответственно. В спектрах фотолюминесценции комплексов в твердом состоянии наблюдаются две полосы эмиссии, проявляющиеся при облучении светом с разными длинами волн: при возбуждении в диапазоне 300-400 нм оба комплекса демонстрируют голубую эмиссию (lмакс = 445 нм для 1, lмакс = 430 нм для 2), при lвозб = 440-500 нм наблюдается зеленая эмиссия (lвозб = 545 нм для 1, lмакс = 545 нм для 2). Обе полосы характеризуются биэкспоненциальными кинетиками затухания с наносекундными и микросекундными компонентами времен жизни возбужденных состояний.

Переведенное название	Влияние полиморфизма на люминесцентные свойства комплексов нитрата серебра(I) с 2-амино-5-фенилпиразином
Язык оригинала	английский
Страницы (с-по)	485-500
Число страниц	16
Журнал	Journal of Structural Chemistry
Том	63
Номер выпуска	3
DOI	https://doi.org/10.1134/S0022476622030155
Состояние	Опубликовано - мар 2022

Предметные области OECD FOS+WOS

2.05 ТЕХНОЛОГИЯ МАТЕРИАЛОВ
1.04 ХИМИЧЕСКИЕ НАУКИ

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10.1134/S0022476622030155

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@article{52648cc56d1c43cf9006aace12a08bb5,

title = "Effect of polymorphism on the luminescent properties on silver(I) nitrate complexes with 2-amino-5-phenylpyrazine",

abstract = "The reaction between AgNO3 and 2-amino-5-phenylpyrazine (L) at a molar ratio Ag:L = 1.5:1 (synthesis time 3-4 h) in the acetonitrile solution leads to the formation of [AgL2NO3] complex (1). According to the single crystal X-ray diffraction data, two L molecules are coordinated to each silver atom through the N1 atom of the pyrazine ring and one NO3- anion. Polymorph 2 is obtained by the reaction between AgNO3 and L at a 1:2 molar ratio and a short synthesis time (3-30 min). Complex 2 consists of two moieties ([AgL2]+ and [AgL2(NO3)2]–) in which silver atoms have different coordination environments: almost linear and distorted tetrahedral respectively. In photoluminescence spectra of the solid complexes, two emission bands are observed, which appear after light irradiation with different wavelengths. Upon the excitation in the range of 300-400 nm, both complexes exhibit blue emission (λmax = 445 nm for 1, λmax= 430 nm for 2). Upon the excitation with λex = 440-500 nm, green emission is observed (λex = 545 nm for 1, λmax = 530 nm for 2). Both bands are characterized by the biexponential decay kinetics with nano- and microsecond lifetimes of the excited state. [Figure not available: see fulltext.]",

keywords = "coordination compounds, lifetime, luminescence polymorphism, photoluminescence, pyrazine, quantum yield, silver, single crystal X-ray diffraction analysis",

author = "Malakhova, {Yu A.} and Sukhikh, {T. S.} and Rakhmanova, {M. I.} and Vinogradova, {K. A.}",

note = "Funding Information: The work was supported by the grant of the President of the Russian Federation for young scientists (project No. MK-1219.2020.3) and the Ministry of Science and Higher Education of the Russian Federation (projects Nos. 121031700315-2 and 121031700313-8). Publisher Copyright: {\textcopyright} 2022, Pleiades Publishing, Ltd.",

year = "2022",

month = mar,

doi = "10.1134/S0022476622030155",

language = "English",

volume = "63",

pages = "485--500",

journal = "Journal of Structural Chemistry",

issn = "0022-4766",

publisher = "Springer GmbH & Co, Auslieferungs-Gesellschaf",

number = "3",

}

Effect of polymorphism on the luminescent properties on silver(I) nitrate complexes with 2-amino-5-phenylpyrazine. / Malakhova, Yu A.; Sukhikh, T. S.; Rakhmanova, M. I.; Vinogradova, K. A.

В: Journal of Structural Chemistry, Том 63, № 3, 03.2022, стр. 485-500.

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

TY - JOUR

T1 - Effect of polymorphism on the luminescent properties on silver(I) nitrate complexes with 2-amino-5-phenylpyrazine

AU - Malakhova, Yu A.

AU - Sukhikh, T. S.

AU - Rakhmanova, M. I.

AU - Vinogradova, K. A.

N1 - Funding Information: The work was supported by the grant of the President of the Russian Federation for young scientists (project No. MK-1219.2020.3) and the Ministry of Science and Higher Education of the Russian Federation (projects Nos. 121031700315-2 and 121031700313-8). Publisher Copyright: © 2022, Pleiades Publishing, Ltd.

PY - 2022/3

Y1 - 2022/3

N2 - The reaction between AgNO3 and 2-amino-5-phenylpyrazine (L) at a molar ratio Ag:L = 1.5:1 (synthesis time 3-4 h) in the acetonitrile solution leads to the formation of [AgL2NO3] complex (1). According to the single crystal X-ray diffraction data, two L molecules are coordinated to each silver atom through the N1 atom of the pyrazine ring and one NO3- anion. Polymorph 2 is obtained by the reaction between AgNO3 and L at a 1:2 molar ratio and a short synthesis time (3-30 min). Complex 2 consists of two moieties ([AgL2]+ and [AgL2(NO3)2]–) in which silver atoms have different coordination environments: almost linear and distorted tetrahedral respectively. In photoluminescence spectra of the solid complexes, two emission bands are observed, which appear after light irradiation with different wavelengths. Upon the excitation in the range of 300-400 nm, both complexes exhibit blue emission (λmax = 445 nm for 1, λmax= 430 nm for 2). Upon the excitation with λex = 440-500 nm, green emission is observed (λex = 545 nm for 1, λmax = 530 nm for 2). Both bands are characterized by the biexponential decay kinetics with nano- and microsecond lifetimes of the excited state. [Figure not available: see fulltext.]

AB - The reaction between AgNO3 and 2-amino-5-phenylpyrazine (L) at a molar ratio Ag:L = 1.5:1 (synthesis time 3-4 h) in the acetonitrile solution leads to the formation of [AgL2NO3] complex (1). According to the single crystal X-ray diffraction data, two L molecules are coordinated to each silver atom through the N1 atom of the pyrazine ring and one NO3- anion. Polymorph 2 is obtained by the reaction between AgNO3 and L at a 1:2 molar ratio and a short synthesis time (3-30 min). Complex 2 consists of two moieties ([AgL2]+ and [AgL2(NO3)2]–) in which silver atoms have different coordination environments: almost linear and distorted tetrahedral respectively. In photoluminescence spectra of the solid complexes, two emission bands are observed, which appear after light irradiation with different wavelengths. Upon the excitation in the range of 300-400 nm, both complexes exhibit blue emission (λmax = 445 nm for 1, λmax= 430 nm for 2). Upon the excitation with λex = 440-500 nm, green emission is observed (λex = 545 nm for 1, λmax = 530 nm for 2). Both bands are characterized by the biexponential decay kinetics with nano- and microsecond lifetimes of the excited state. [Figure not available: see fulltext.]

KW - coordination compounds

KW - lifetime

KW - luminescence polymorphism

KW - photoluminescence

KW - pyrazine

KW - quantum yield

KW - silver

KW - single crystal X-ray diffraction analysis

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DO - 10.1134/S0022476622030155

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JO - Journal of Structural Chemistry

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