Cadmium(II)-Organic Frameworks with the Polynuclear Unit: Dimensionality Control and Luminescence Response to Pyridine

Cadmium(II)-Organic Frameworks with the Polynuclear Unit: Dimensionality Control and Luminescence Response to Pyridine Научная публикация

Журнал

Russian Journal of Coordination Chemistry
ISSN: 1070-3284 , E-ISSN: 1608-3318

Вых. Данные

Год: 2024, Том: 50, Номер: 9, Страницы: 653–661 Страниц : DOI: 10.1134/S1070328424600864

Ключевые слова

metal-organic frameworks, polymers, XRD, luminescence, pyridine

Авторы

Dubskikh V.A. ¹ , Lysova A.A. ¹ , Samsonenko D.G. ¹ , Dybtsev D.N. ¹

Организации

1	Институт неорганической химии им. А.В. Николаева СО РАН

New porous metal-organic frameworks (MOF) [Cd7(Btdc)7(Bpa)2(Dmf)2(H2O)2]·15Dmf·2H2O (I) and [Cd7(Btdc)7(Bpe)2(Dmf)2]·15Dmf·3H2O (II) (H2Btdc is 2,2′-bithiophene-5,5′-dicarboxylic acid, Bpa is 1,2-bis(4-pyridyl)ethane, Bpe is 1,2-bis(4-pyridyl)ethylene, and Dmf is N,N-dimethylformamide) are synthesized under solvatothermal conditions. The structures and compositions of the compounds are deter- mined by single-crystal X-ray diffraction (XRD) (CIF files ССDС nos. 2364290 (I) and 2364289 (II)) and confirmed by phase XRD, elemental analysis, thermogravimetry, and IR spectroscopy. Compound I has a 2D structure based on the heptanuclear discrete building unit {Cd7} with the linear structure. Compound II is a 3D MOF in which the {Cd7} building units are linked into a continuous chain motif due to additional interactions. The formation of discrete or continuous chains is directly related to the nature of the N-donor bridging ligand (Bpe or Bpa). Compounds I and II have open structures with the accessible volume about 50%. The solvate molecules are replaced by thiophene, benzene, and pyridine, and the luminescence prop- erties of the prepared adducts are studied. Luminescence quenching in the presence of thiophene and an increase in the luminescence intensity in the presence of pyridine accompanied by a change in the quantum yield by 4–5 times are shown.

Dubskikh V.A. , Lysova A.A. , Samsonenko D.G. , Dybtsev D.N.
Cadmium(II)-Organic Frameworks with the Polynuclear Unit: Dimensionality Control and Luminescence Response to Pyridine
Russian Journal of Coordination Chemistry. 2024. V.50. N9. P.653–661. DOI: 10.1134/S1070328424600864

Дубских В.А. , Лысова А.А. , Самсоненко Д.Г. , Дыбцев Д.Н.
Кадмий(II)-органические координационные полимеры с полиядерным блоком: контроль размерности и люминесцентный отклик на пиридин
Координационная химия. 2024. Т.50. №9. С.566-576.

Поступила в редакцию:	28 июн. 2024 г.
Принята к публикации:	10 июл. 2024 г.
Опубликована в печати:	30 сент. 2024 г.

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