Trinuclear magnesium complexes stabilized by aminoalkoxide ligands

Hyo Suk Kim; Sheby Mary George; Eun Ae Jung; Jeong Hwan Han; Bo Keun Park; Seung Uk Son; Chang Gyoun Kim; Taek Mo Chung

doi:10.1080/00958972.2016.1213389

Trinuclear magnesium complexes stabilized by aminoalkoxide ligands

Hyo Suk Kim, Sheby Mary George, Eun Ae Jung, Jeong Hwan Han, Bo Keun Park, Seung Uk Son, Chang Gyoun Kim, Taek Mo Chung

Dept. of Materials Science & Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

New magnesium complexes, [Et₂Mg₃(dmamp)₄] (1) and [(CH₂=CH)₂Mg₃(dmamp)₄] (2), were prepared by the reaction of alkylmagnesium bromide with sodium 1-dimethylamino-2-methyl-2-propoxide [Na(dmamp)] in THF. Complexes 1 and 2 were characterized by ¹H and ¹³C NMR spectroscopies, FTIR spectroscopy, elemental analysis, and single-crystal X-ray diffraction (XRD) analysis. The XRD analysis showed that these complexes are trinuclear where the alkoxy O is the μ₂-O bridge between the Mg ions. Among the three metal centers, the two terminal Mg ions are five coordinate and have a square–pyramidal geometry, whereas the central Mg is four coordinate with a distorted tetrahedral geometry. The combination of ethyl and vinyl groups with sterically bulky aminoalkoxide ligands plays an important role in stabilizing the molecule.

Original language	English
Pages (from-to)	2591-2597
Number of pages	7
Journal	Journal of Coordination Chemistry
Volume	69
Issue number	17
DOIs	https://doi.org/10.1080/00958972.2016.1213389
State	Published - 1 Sep 2016

Keywords

aminoalkoxide
crystal structure
grignard reagent
Magnesium complexes
trinuclear

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10.1080/00958972.2016.1213389

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@article{880be8ef25f04a59b29009ba0e1feef8,

title = "Trinuclear magnesium complexes stabilized by aminoalkoxide ligands",

abstract = "New magnesium complexes, [Et2Mg3(dmamp)4] (1) and [(CH2=CH)2Mg3(dmamp)4] (2), were prepared by the reaction of alkylmagnesium bromide with sodium 1-dimethylamino-2-methyl-2-propoxide [Na(dmamp)] in THF. Complexes 1 and 2 were characterized by 1H and 13C NMR spectroscopies, FTIR spectroscopy, elemental analysis, and single-crystal X-ray diffraction (XRD) analysis. The XRD analysis showed that these complexes are trinuclear where the alkoxy O is the μ2-O bridge between the Mg ions. Among the three metal centers, the two terminal Mg ions are five coordinate and have a square–pyramidal geometry, whereas the central Mg is four coordinate with a distorted tetrahedral geometry. The combination of ethyl and vinyl groups with sterically bulky aminoalkoxide ligands plays an important role in stabilizing the molecule.",

keywords = "aminoalkoxide, crystal structure, grignard reagent, Magnesium complexes, trinuclear",

author = "Kim, \{Hyo Suk\} and George, \{Sheby Mary\} and Jung, \{Eun Ae\} and Han, \{Jeong Hwan\} and Park, \{Bo Keun\} and Son, \{Seung Uk\} and Kim, \{Chang Gyoun\} and Chung, \{Taek Mo\}",

note = "Publisher Copyright: {\textcopyright} 2016 Informa UK Limited, trading as Taylor \& Francis Group.",

year = "2016",

month = sep,

day = "1",

doi = "10.1080/00958972.2016.1213389",

language = "English",

volume = "69",

pages = "2591--2597",

journal = "Journal of Coordination Chemistry",

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TY - JOUR

T1 - Trinuclear magnesium complexes stabilized by aminoalkoxide ligands

AU - Kim, Hyo Suk

AU - George, Sheby Mary

AU - Jung, Eun Ae

AU - Han, Jeong Hwan

AU - Park, Bo Keun

AU - Son, Seung Uk

AU - Kim, Chang Gyoun

AU - Chung, Taek Mo

PY - 2016/9/1

Y1 - 2016/9/1

N2 - New magnesium complexes, [Et2Mg3(dmamp)4] (1) and [(CH2=CH)2Mg3(dmamp)4] (2), were prepared by the reaction of alkylmagnesium bromide with sodium 1-dimethylamino-2-methyl-2-propoxide [Na(dmamp)] in THF. Complexes 1 and 2 were characterized by 1H and 13C NMR spectroscopies, FTIR spectroscopy, elemental analysis, and single-crystal X-ray diffraction (XRD) analysis. The XRD analysis showed that these complexes are trinuclear where the alkoxy O is the μ2-O bridge between the Mg ions. Among the three metal centers, the two terminal Mg ions are five coordinate and have a square–pyramidal geometry, whereas the central Mg is four coordinate with a distorted tetrahedral geometry. The combination of ethyl and vinyl groups with sterically bulky aminoalkoxide ligands plays an important role in stabilizing the molecule.

AB - New magnesium complexes, [Et2Mg3(dmamp)4] (1) and [(CH2=CH)2Mg3(dmamp)4] (2), were prepared by the reaction of alkylmagnesium bromide with sodium 1-dimethylamino-2-methyl-2-propoxide [Na(dmamp)] in THF. Complexes 1 and 2 were characterized by 1H and 13C NMR spectroscopies, FTIR spectroscopy, elemental analysis, and single-crystal X-ray diffraction (XRD) analysis. The XRD analysis showed that these complexes are trinuclear where the alkoxy O is the μ2-O bridge between the Mg ions. Among the three metal centers, the two terminal Mg ions are five coordinate and have a square–pyramidal geometry, whereas the central Mg is four coordinate with a distorted tetrahedral geometry. The combination of ethyl and vinyl groups with sterically bulky aminoalkoxide ligands plays an important role in stabilizing the molecule.

KW - aminoalkoxide

KW - crystal structure

KW - grignard reagent

KW - Magnesium complexes

KW - trinuclear

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U2 - 10.1080/00958972.2016.1213389

DO - 10.1080/00958972.2016.1213389

M3 - Article

AN - SCOPUS:84980344040

SN - 0095-8972

VL - 69

SP - 2591

EP - 2597

JO - Journal of Coordination Chemistry

JF - Journal of Coordination Chemistry

IS - 17

ER -

Trinuclear magnesium complexes stabilized by aminoalkoxide ligands

Abstract

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