Synthesis and structural characterization of magnesium complexes bearing benzotriazole phenoxide ligands: Photoluminescent properties and catalytic studies for ring-opening polymerization of l-lactide

Chen Yu Li; Jing Kai Su; Chia Jung Yu; Yu En Tai; Chia Her Lin; Bao Tsan Ko

doi:10.1016/j.inoche.2012.02.017

Synthesis and structural characterization of magnesium complexes bearing benzotriazole phenoxide ligands: Photoluminescent properties and catalytic studies for ring-opening polymerization of l-lactide

Chen Yu Li, Jing Kai Su, Chia Jung Yu, Yu En Tai, Chia Her Lin, Bao Tsan Ko^*

^*Corresponding author for this work

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

24 Citations (Scopus)

Abstract

Magnesium catalysts incorporated by sterically bulky benzotriazole- phenoxide ligands ( ^CMe2PhBTP ^-, ^t-BuBTP ^- and ^TMClBTP ^-) are synthesized and structurally characterized. The reaction of Mg ⁿBu ₂ with ^CMe2PhBTP-H (2.0 mol Eq) in THF produces penta-coordinated monomeric magnesium complex [( ^CMe2PhBTP) ₂Mg(THF)] (1). However, six-coordinated bis-adduct magnesium complexes [( ^t-BuBTP) ₂Mg(THF) ₂] (2) and [( ^TMClBTP) ₂ Mg(THF) ₂] (3) result from treatments of Mg ⁿBu ₂ with ^t-BuBTP-H and ^TMClBTP-H in THF under the same stoichiometric proportion, in which each Mg center is coordinated by two THF molecules. Optical properties and catalytic studies for l-lactide polymerizations of magnesium complexes 1-3 are investigated. Magnesium complex 3 catalyzes the ring-opening polymerization effectively not only in a controlled fashion but also in an immortal manner, giving polymers with the expected molecular weights and narrow molecular weight distributions.

Original language	English
Pages (from-to)	60-65
Number of pages	6
Journal	Inorganic Chemistry Communications
Volume	20
DOIs	https://doi.org/10.1016/j.inoche.2012.02.017
Publication status	Published - 2012 Jun
Externally published	Yes

Keywords

Catalyst
Magnesium complex
N,O-Bidentate
Photoluminescence
Ring-opening polymerization
l-Lactide

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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Li, C. Y., Su, J. K., Yu, C. J., Tai, Y. E., Lin, C. H., & Ko, B. T. (2012). Synthesis and structural characterization of magnesium complexes bearing benzotriazole phenoxide ligands: Photoluminescent properties and catalytic studies for ring-opening polymerization of l-lactide. Inorganic Chemistry Communications, 20, 60-65. https://doi.org/10.1016/j.inoche.2012.02.017

Synthesis and structural characterization of magnesium complexes bearing benzotriazole phenoxide ligands: Photoluminescent properties and catalytic studies for ring-opening polymerization of l-lactide. / Li, Chen Yu; Su, Jing Kai; Yu, Chia Jung et al.
In: Inorganic Chemistry Communications, Vol. 20, 06.2012, p. 60-65.

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

@article{902bda8473604f8782af7ba11fe6907b,

title = "Synthesis and structural characterization of magnesium complexes bearing benzotriazole phenoxide ligands: Photoluminescent properties and catalytic studies for ring-opening polymerization of l-lactide",

abstract = "Magnesium catalysts incorporated by sterically bulky benzotriazole- phenoxide ligands ( CMe2PhBTP -, t-BuBTP - and TMClBTP -) are synthesized and structurally characterized. The reaction of Mg nBu 2 with CMe2PhBTP-H (2.0 mol Eq) in THF produces penta-coordinated monomeric magnesium complex [( CMe2PhBTP) 2Mg(THF)] (1). However, six-coordinated bis-adduct magnesium complexes [( t-BuBTP) 2Mg(THF) 2] (2) and [( TMClBTP) 2 Mg(THF) 2] (3) result from treatments of Mg nBu 2 with t-BuBTP-H and TMClBTP-H in THF under the same stoichiometric proportion, in which each Mg center is coordinated by two THF molecules. Optical properties and catalytic studies for l-lactide polymerizations of magnesium complexes 1-3 are investigated. Magnesium complex 3 catalyzes the ring-opening polymerization effectively not only in a controlled fashion but also in an immortal manner, giving polymers with the expected molecular weights and narrow molecular weight distributions.",

keywords = "Catalyst, Magnesium complex, N,O-Bidentate, Photoluminescence, Ring-opening polymerization, l-Lactide",

author = "Li, {Chen Yu} and Su, {Jing Kai} and Yu, {Chia Jung} and Tai, {Yu En} and Lin, {Chia Her} and Ko, {Bao Tsan}",

note = "Funding Information: We gratefully acknowledge the financial support from the National Science Council, Taiwan ( NSC99-2113-M-033-007-MY2 ). ",

year = "2012",

month = jun,

doi = "10.1016/j.inoche.2012.02.017",

language = "English",

volume = "20",

pages = "60--65",

journal = "Inorganic Chemistry Communications",

issn = "1387-7003",

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T1 - Synthesis and structural characterization of magnesium complexes bearing benzotriazole phenoxide ligands

T2 - Photoluminescent properties and catalytic studies for ring-opening polymerization of l-lactide

AU - Li, Chen Yu

AU - Su, Jing Kai

AU - Yu, Chia Jung

AU - Tai, Yu En

AU - Lin, Chia Her

AU - Ko, Bao Tsan

N1 - Funding Information: We gratefully acknowledge the financial support from the National Science Council, Taiwan ( NSC99-2113-M-033-007-MY2 ).

PY - 2012/6

Y1 - 2012/6

N2 - Magnesium catalysts incorporated by sterically bulky benzotriazole- phenoxide ligands ( CMe2PhBTP -, t-BuBTP - and TMClBTP -) are synthesized and structurally characterized. The reaction of Mg nBu 2 with CMe2PhBTP-H (2.0 mol Eq) in THF produces penta-coordinated monomeric magnesium complex [( CMe2PhBTP) 2Mg(THF)] (1). However, six-coordinated bis-adduct magnesium complexes [( t-BuBTP) 2Mg(THF) 2] (2) and [( TMClBTP) 2 Mg(THF) 2] (3) result from treatments of Mg nBu 2 with t-BuBTP-H and TMClBTP-H in THF under the same stoichiometric proportion, in which each Mg center is coordinated by two THF molecules. Optical properties and catalytic studies for l-lactide polymerizations of magnesium complexes 1-3 are investigated. Magnesium complex 3 catalyzes the ring-opening polymerization effectively not only in a controlled fashion but also in an immortal manner, giving polymers with the expected molecular weights and narrow molecular weight distributions.

AB - Magnesium catalysts incorporated by sterically bulky benzotriazole- phenoxide ligands ( CMe2PhBTP -, t-BuBTP - and TMClBTP -) are synthesized and structurally characterized. The reaction of Mg nBu 2 with CMe2PhBTP-H (2.0 mol Eq) in THF produces penta-coordinated monomeric magnesium complex [( CMe2PhBTP) 2Mg(THF)] (1). However, six-coordinated bis-adduct magnesium complexes [( t-BuBTP) 2Mg(THF) 2] (2) and [( TMClBTP) 2 Mg(THF) 2] (3) result from treatments of Mg nBu 2 with t-BuBTP-H and TMClBTP-H in THF under the same stoichiometric proportion, in which each Mg center is coordinated by two THF molecules. Optical properties and catalytic studies for l-lactide polymerizations of magnesium complexes 1-3 are investigated. Magnesium complex 3 catalyzes the ring-opening polymerization effectively not only in a controlled fashion but also in an immortal manner, giving polymers with the expected molecular weights and narrow molecular weight distributions.

KW - Catalyst

KW - Magnesium complex

KW - N,O-Bidentate

KW - Photoluminescence

KW - Ring-opening polymerization

KW - l-Lactide

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Synthesis and structural characterization of magnesium complexes bearing benzotriazole phenoxide ligands: Photoluminescent properties and catalytic studies for ring-opening polymerization of l-lactide

Abstract

Keywords

ASJC Scopus subject areas

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