Transition Metal Coordination Polymers with Trans-1,4-Cyclohexanedicarboxylate: Acidity-Controlled Synthesis, Structures and Properties
Научная публикация
| Общая информация |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Materials
ISSN: 1996-1944
|
| Вых. Данные |
Год: 2020,
Том: 13,
Номер: 2,
Номер статьи
: 486,
Страниц
: 16
DOI:
10.3390/ma13020486
|
| Ключевые слова |
aliphatic ligands; coordination polymers; magnetochemical study; metal oxides; metal–organic frameworks; synthesis; thermolysis. |
| Авторы |
Demakov Pavel A.
1,2
,
Bogomyakov Artem S.
2,3
,
Urlukov Artem S.
1,2
,
Andreeva Aleksandra Yu.
1
,
Samsonenko Denis G.
1,2
,
Dybtsev Danil N.
1,2
,
Fedin Vladimir P.
1,2
|
| Организации |
| 1 |
Nikolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk 630090, Russia
|
| 2 |
Department of Natural Sciences, Novosibirsk State University, Novosibirsk 630090, Russia
|
| 3 |
International Tomography Center SB RAS, Novosibirsk 630090, Russia
|
|
Five trans-1,4-cyclohexanedicarboxylate (chdc2-) metal-organic frameworks of transition metals were synthesized in aqueous systems. A careful control of pH, reaction temperature and solvent composition were shown to direct the crystallization of a particular compound. Isostructural [Co(H2O)4(chdc)]n (1) and [Fe(H2O)4(chdc)]n (2) consist of one-dimensional hydrogen-bonded chains. Compounds [Cd(H2O)(chdc)]n∙0.5nCH3CN (3), [Mn4(H2O)3(chdc)4]n (4) and [Mn2(Hchdc)2(chdc)]n (5) possess three-dimensional framework structures. The compounds 1, 4 and 5 were further characterized by magnetochemical analysis, which reveals paramagnetic nature of these compounds. A presence of antiferromagnetic exchange at low temperatures is observed for 5 while the antiferromagnetic coupling in 4 is rather strong, even at ambient conditions. The thermal decompositions of 1, 4 and 5 were investigated and the obtained metal oxide (cubic Co3O4 and MnO) samples were analyzed by X-ray diffraction and scanning electron microscopy.