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Structural diversity of polynuclear Mg x O y cores in magnesium phenoxide complexesстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Minyaev Mikhail E., Churakov Andrei V., Nifant’ev Ilya E.
- Журнал: ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY
- Том: 73
- Номер: 11
- Год издания: 2017
- Издательство: John Wiley & Sons Inc.
- Местоположение издательства: United States
- DOI: 10.1107/s2053229617012657
- Аннотация: The binuclear [(BHT)(DME)Mg(-OBn)2Mg(THF)(BHT)] complex, [Mg2O2-C4H10O2)(C4H8O) C7H7)2(C15H23O)2], (I), was obtained from the complex [(BHT)Mg(-OBn)(THF)]2 by substitution of one THF molecule with DME in toluene (BHT = O-2,6-tBu2-4-MeC6H4, DME = 1,2-dimethoxyethane and THF = tetrahydrofuran). The trinuclear complex [(BHT)2(O-2-MeC6H4)4(THF)2-Mg3], [Mg3O4(C4H8O)2(C7H7)4(C15H23O)2], (II), was formed from a mixture of Bu2Mg, [(BHT)Mg(nBu)(THF)2] and 2-methylphenol. An unusual tetranuclear complex, Mg4(BHT)2(OCH2CH2NH2)6, [Mg4 O6(C15H23O)2(C2H6N)6], (III), resulted from the reaction between (BHT)2Mg(THF)2 and 2-aminoethanol. A polymerization test demonstrated the ability of (III) to catalyse the ring-opening polymerization of "-caprolactone without activation by alcohol. In all three complexes (I)–(III), the BHT ligand demonstrates the terminal O-coordination mode. Complexes (I), (II) and (III) have binuclear rhomboid Mg2O2, trinuclear chain-like Mg3O4 and bicubic Mg4O6 cores, respectively. A survey of the literature on known polynuclear MgxOy core types for ArO–Mg complexes is also presented.
- Добавил в систему: Нифантьев Илья Эдуардович