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Isomorphous rare-earth bis[bis(2,6-diisopropylphenyl)phosphate] complexes and their self-assembly into two-dimensional frameworks by intramolecular hydrogen bondsстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 9 ноября 2017 г.
- Авторы: Minyaev Mikhail E., Nifant'ev Ilya E., Tavtorkin Alexander N., Korchagina Sof'ya A., Zeynalova Shadana Sh, Ananyev Ivan V., Churakov Andrei V.
- Журнал: ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY
- Том: 73
- Номер: 10
- Год издания: 2017
- Издательство: John Wiley & Sons Inc.
- Местоположение издательства: United States
- Первая страница: 820
- Последняя страница: 827
- DOI: 10.1107/s2053229617012979
- Аннотация: The crystal structures of rare-earth diaryl- or dialkylphosphate derivatives are poorly explored. Crystals of bis[bis(2,6-diisopropylphenyl)phosphato-O]chloridotetrakis( methanol-O)neodymium methanol disolvate, [Nd(C24H34O4P)Cl- (CH4O)4]2CH3OH, (1), and of the lutetium, [Lu(C24H34O4P)Cl(CH4O)4]- 2CH3OH, (2), and yttrium, [Y(C24H34O4P)Cl(CH4O)4]2CH3OH, (3), analogues have been obtained by reactions between lithium bis(2,6-diisopropylphenyl)- phosphate and LnCl3(H2O)6 (in a 2:1 ratio) in methanol. Compounds (1)–(3) crystallize in the C2/c space group. Their crystal structures are isomorphous. The molecule possesses C2 symmetry with a twofold crystallographic axis passing through the Ln and Cl atoms. The bis(2,6-diisopropylphenyl)phosphate ligands all display a 1O-monodentate coordination mode. The coordination polyhedron for the metal atom [coordination number (CN) = 7] is a distorted pentagonal bipyramid. Each [Ln{O2P(O-2,6-iPr2C6H3)2}2Cl(CH3OH)4] molecular unit exhibits two intramolecular O—H O hydrogen bonds, forming six-membered rings, and two intramolecular O—H Cl interactions, forming four-membered rings. Intermolecular O—H O hydrogen bonds connect each unit via four noncoordinating methanol molecules with four other units, forming a two-dimensional hydrogen-bond network. Crystals of bis[bis(2,6- diisopropylphenyl)phosphato-O]tetrakis(methanol-O)(nitrato-2O,O0)neodymium methanol disolvate, [Nd(C24H34O4P)(NO3)(CH4O)4]2CH3OH, (4), have been obtained in an analogous manner from NdCl3(H2O)6. Compound (4) also crystalizes in the C2/c space group. Its crystal structure is similar to those of (1)–(3). The 2O,O0-bidentate nitrate anion is disordered over a twofold axis, being located nearly on it. Half of the molecule is crystallographically unique (CNNd = 8). Unlike (1)–(3), complex (4) exhibits disorder of all three methanol molecules, one isopropyl group of the phosphate ligand and the NO3 ligand. The structure of (4) displays intra- and intermolecular O—H O hydrogen bonds similar to those in (1)–(3). Compounds (1)–(4) represent the first reported mononuclear bis[bis(diaryl/dialkyl)phosphate] rare-earth complexes.
- Добавил в систему: Нифантьев Илья Эдуардович