1
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Abu-Yamin AA, Taher D, Korb M, Al Khalyfeh K, Ishtaiwi Z, Juwhari HK, Helal W, Amarne H, Mahmood S, Loloee R, YouSef YA, Ghazzy A, Lang H. Synthesis, chemical and physical properties of lanthanide(III) (Nd, Gd, Tb) complexes derived from (E)-ethyl 4-(2-hydroxybenzylideneamino)benzoate. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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2
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Li M, Zhang J, Chen J, Yao Y, Luo Y. Rare‐earth metal derivatives supported by aminophenoxy ligand: Synthesis, characterization and catalytic performance in lactide polymerization. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Min Li
- School of Material Science and Chemical EngineeringNingbo University Ningbo 315211 China
| | - Jie Zhang
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Suzhou 215123 China
| | - Jue Chen
- School of Biological and Chemical Engineering, Ningbo Institute of TechnologyZhejiang University Ningbo 315100 China
| | - Yingming Yao
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Suzhou 215123 China
| | - Yunjie Luo
- School of Material Science and Chemical EngineeringNingbo University Ningbo 315211 China
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3
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Skvortsov GG, Shavyrin AS, Kovylina TA, Cherkasov AV, Trifonov AA. Rare‐Earth Amido and Borohydrido Complexes Supported by Tetradentate Amidinate Ligands: Synthesis, Structure, and Catalytic Activity in Polymerization of Cyclic Esters. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900897] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Grigorii G. Skvortsov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49 603950 Nizhny Novgorod, GSP‐445 Russia
| | - Andrei S. Shavyrin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49 603950 Nizhny Novgorod, GSP‐445 Russia
| | - Tatyana A. Kovylina
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49 603950 Nizhny Novgorod, GSP‐445 Russia
| | - Anton V. Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49 603950 Nizhny Novgorod, GSP‐445 Russia
| | - Alexander A. Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49 603950 Nizhny Novgorod, GSP‐445 Russia
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences 28 Vavilova str. 119991 Moscow, GSP1 Russia
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4
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Lyubov DM, Tolpygin AO, Trifonov AA. Rare-earth metal complexes as catalysts for ring-opening polymerization of cyclic esters. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.04.013] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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5
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Hua J, Lv Q, Wang Z, Liu K, Ling J. Ring-opening polymerization of l-lactide catalyzed by a novel molybdenum-based catalytic system. IRANIAN POLYMER JOURNAL 2018. [DOI: 10.1007/s13726-018-0612-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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6
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Gajecki L, Berg DJ, Hoenisch J, Oliver AG. Variable coordination of carbazolyl-bis(tetrazole) ligands in lanthanide chemistry. Dalton Trans 2018; 47:15487-15496. [DOI: 10.1039/c8dt02757a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Lanthanide complexes of 1,8-bis(2′-isopropyltetrazo-5′-yl)-3,6-di-tert-butylcarbazolide adopt geometries that include planar, buckled and tetrazolyl-bridged tridentate, as well as bidentate, bonding modes.
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Affiliation(s)
- Leah Gajecki
- Department of Chemistry
- University of Victoria
- Victoria BC V8W 2Y2
- Canada
| | - David J. Berg
- Department of Chemistry
- University of Victoria
- Victoria BC V8W 2Y2
- Canada
| | - Josh Hoenisch
- Department of Chemistry
- University of Victoria
- Victoria BC V8W 2Y2
- Canada
| | - Allen G. Oliver
- Department of Chemistry & Biochemistry
- University of Notre Dame
- Notre Dame
- USA
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7
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Nie K, Wang C, Han Y, Zhang J, Yao Y. Lanthanide complexes supported by phenolate-possessing aroylhydrazone: Synthesis, characterization and lactides polymerization. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.06.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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8
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Duan YL, He JX, Wang W, Zhou JJ, Huang Y, Yang Y. Synthesis and characterization of dinuclear rare-earth complexes supported by amine-bridged bis(phenolate) ligands and their catalytic activity for the ring-opening polymerization of l-lactide. Dalton Trans 2016; 45:10807-20. [PMID: 27294827 DOI: 10.1039/c6dt01486k] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reactions of amine-bridged bis(phenolate) protio-ligands N,N-bis(3,5-di-tert-butyl-2-hydroxybenzyl)aminoacetic acid (L(1)-H3) and N,N-bis[3,5-bis(α,α'-dimethylbenzyl)-2-hydroxybenzyl]aminoacetic acid (L(2)-H3), with 1 equiv. M[N(SiMe3)2]3 (M = La, Nd, Sm, Gd, Y) in THF at room temperature yielded the neutral rare-earth complexes [M2(L)2(THF)4] (L = L(1), M = La (), Nd (), Sm (), Gd (), Y (); L = L(2), M = La (), Nd (), Sm (), Gd (), Y ()). All of these complexes were characterized by single-crystal X-ray diffraction, elemental analysis and in the case of yttrium and lanthanum complexes, (1)H NMR spectroscopy. The molecular structure of revealed dinuclear species in which the eight-coordinate lanthanum centers were bonded to two oxygen atoms of two THF molecules, to three oxygen atoms and one nitrogen atom of one L(1) ligand, and two oxygen atoms of the carboxyl group of another. Complexes were also dinuclear species containing seven-coordinate metal centers similar to , albeit with bonding to one rather than two carboxyl group oxygens of another ligand. Further treatment of with excess benzyl alcohol provided dinuclear complex [La2(L(1))2(BnOH)6] (), in which each lanthanum ion is eight-coordinate, bonded to three oxygen atoms and one nitrogen atom of one ligand, three oxygen atoms of three BnOH molecules, as well as one oxygen atom of bridging carboxyl group of the other ligand. In the presence of BnOH, complexes efficiently catalyzed the ring-opening polymerization of l-lactide in a controlled manner and gave polymers with relatively narrow molecular weight distributions. The kinetic and mechanistic studies associated with the ROP of l-lactide using /BnOH initiating system have been performed.
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Affiliation(s)
- Yu-Lai Duan
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China.
| | - Jia-Xuan He
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China.
| | - Wei Wang
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China.
| | - Jing-Jing Zhou
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China.
| | - Yong Huang
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China.
| | - Ying Yang
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China.
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9
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Peng L, Zhao J, Wang LJ, Tao X, Wang YL, Shen YZ. Synthesis and characterization of Mannich base monophenolate lanthanide complexes and their application in ring-opening polymerization of ε-caprolactone. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3455] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ling Peng
- Applied Chemistry Department, School of Material Science and Engineering; Nanjing University of Aeronautics and Astronautics; Nanjing 210016 PR China
| | - Jing Zhao
- Applied Chemistry Department, School of Material Science and Engineering; Nanjing University of Aeronautics and Astronautics; Nanjing 210016 PR China
| | - Li-Jun Wang
- Applied Chemistry Department, School of Material Science and Engineering; Nanjing University of Aeronautics and Astronautics; Nanjing 210016 PR China
| | - Xian Tao
- Jiangsu MO Opto-Electronic Material Co. Ltd; Qinglongshan Branch Road 1, Zhenjiang New District Zhenjiang 212132 PR China
| | - Yu-Long Wang
- Applied Chemistry Department, School of Material Science and Engineering; Nanjing University of Aeronautics and Astronautics; Nanjing 210016 PR China
| | - Ying-Zhong Shen
- Applied Chemistry Department, School of Material Science and Engineering; Nanjing University of Aeronautics and Astronautics; Nanjing 210016 PR China
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10
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Bakewell C, White AJP, Long NJ, Williams CK. Scandium and Yttrium Phosphasalen Complexes as Initiators for Ring-Opening Polymerization of Cyclic Esters. Inorg Chem 2015; 54:2204-12. [DOI: 10.1021/ic5027015] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Clare Bakewell
- Department of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom
| | - Andrew J. P. White
- Department of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom
| | - Nicholas J. Long
- Department of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom
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11
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Xiong J, Zhang J, Sun Y, Dai Z, Pan X, Wu J. Iso-selective ring-opening polymerization of rac-lactide catalyzed by crown ether complexes of sodium and potassium naphthalenolates. Inorg Chem 2015; 54:1737-43. [PMID: 25597469 DOI: 10.1021/ic502685f] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Two crown ether complexes of sodium and potassium naphthalenolates were synthesized and entirely characterized. The two complexes can iso-selectively catalyze the ring-opening polymerization (ROP) of rac-lactide at room temperature and afford polylactides with desired molecular weights and narrow PDIs; the best isotacticity (Pm) achieved was 0.73.
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Affiliation(s)
- Jiao Xiong
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000, People's Republic of China
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12
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Wang C, Huang L, Lu M, Zhao B, Wang Y, Zhang Y, Shen Q, Yao Y. Anionic phenoxy-amido rare-earth complexes as efficient catalysts for amidation of aldehydes with amines. RSC Adv 2015. [DOI: 10.1039/c5ra20285j] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
A series of anionic organo-rare-earth amido complexes stabilized by dianionic phenoxy-amido ligands were synthesized, and their catalytic property for the amidation reactions of aldehydes with amines was explored.
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Affiliation(s)
- Chao Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123, People's Republic of China
| | - Lingling Huang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123, People's Republic of China
| | - Min Lu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123, People's Republic of China
| | - Bei Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123, People's Republic of China
| | - Yaorong Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123, People's Republic of China
| | - Yong Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123, People's Republic of China
| | - Qi Shen
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123, People's Republic of China
| | - Yingming Yao
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123, People's Republic of China
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13
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Zhang M, Ni X, Shen Z. Synthesis of Bimetallic Bis(phenolate) N-Heterocyclic Carbene Lanthanide Complexes and Their Applications in the Ring-Opening Polymerization of l-Lactide. Organometallics 2014. [DOI: 10.1021/om500930m] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Min Zhang
- MOE Key Laboratory of Macromolecular
Synthesis and Functionalization, Department of Polymer Science and
Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Xufeng Ni
- MOE Key Laboratory of Macromolecular
Synthesis and Functionalization, Department of Polymer Science and
Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Zhiquan Shen
- MOE Key Laboratory of Macromolecular
Synthesis and Functionalization, Department of Polymer Science and
Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
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14
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Bakewell C, White AJP, Long NJ, Williams CK. Metal-size influence in iso-selective lactide polymerization. Angew Chem Int Ed Engl 2014; 53:9226-30. [PMID: 25044165 PMCID: PMC4499264 DOI: 10.1002/anie.201403643] [Citation(s) in RCA: 156] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Indexed: 11/08/2022]
Abstract
Iso-selective initiators for the ring-opening polymerization (ROP) of rac-lactide are rare outside of Group 13. We describe the first examples of highly iso-selective lutetium initiators. The phosphasalen lutetium ethoxide complex shows excellent iso-selectivity, with a P(i) value of 0.81-0.84 at 298 K, excellent rates, and high degrees of polymerization control. Conversely, the corresponding La derivative exhibits moderate heteroselectivity (P(s)=0.74, 298 K). Thus, the choice of metal center is shown to be crucial in determining the level and mode of stereocontrol. The relative order of rates for the series of complexes is inversely related to metallic covalent radius: that is, La>Y>Lu.
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Affiliation(s)
- Clare Bakewell
- Department of Chemistry, Imperial College LondonSouth Kensington (UK)
| | - Andrew J P White
- Department of Chemistry, Imperial College LondonSouth Kensington (UK)
| | - Nicholas J Long
- Department of Chemistry, Imperial College LondonSouth Kensington (UK)
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15
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Zhou H, Jiang Y, Chen M, Wang Y, Yao Y, Wu B, Cui D. Synthesis and characterization of lanthanide amides bearing phenoxy(quinolinyl)amide ligand and their application in the ring-opening polymerization of 1,4-dioxan-2-one. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2014.04.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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16
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Bakewell C, White AJP, Long NJ, Williams CK. Metal-Size Influence in Iso-Selective Lactide Polymerization. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403643] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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17
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Nie K, Feng T, Song F, Zhang Y, Sun H, Yuan D, Yao Y, Shen Q. Bimetallic amine-bridged bis(phenolate) lanthanide aryloxides and alkoxides: synthesis, characterization, and application in the ring-opening polymerization of rac-lactide and rac-β-butyrolactone. Sci China Chem 2014. [DOI: 10.1007/s11426-014-5142-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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18
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Jiang Y, Zhu X, Chen M, Wang Y, Yao Y, Wu B, Shen Q. Synthesis and Structural Characterization of Mixed-Valent Ytterbium and Europium Complexes Supported by a Phenoxy(quinolinyl)amide Ligand. Organometallics 2014. [DOI: 10.1021/om5000198] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yinyin Jiang
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Xi Zhu
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Muzi Chen
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Yaorong Wang
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Yingming Yao
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Bing Wu
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Qi Shen
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
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19
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Synthesis and structure of amine-bridged bis(phenolate) lanthanide complexes and their application in the polymerization of ε-caprolactone. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.10.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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20
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Qian C, Qin L, Zong Q, Wu L, Fang D. Aminophenols as Efficient Ligand for Copper-Catalyzed Ullmann-type Synthesis of Diaryl Ethers. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.12.3915] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Yang S, Nie K, Zhang Y, Xue M, Yao Y, Shen Q. New [ONOO]-Type Amine Bis(phenolate) Ytterbium(II) and -(III) Complexes: Synthesis, Structure, and Catalysis for Highly Heteroselective Polymerization of rac-Lactide. Inorg Chem 2013; 53:105-15. [DOI: 10.1021/ic401747n] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Sheng Yang
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
| | - Kun Nie
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
| | - Yong Zhang
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
| | - Mingqiang Xue
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
| | - Yingming Yao
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
| | - Qi Shen
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
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22
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Aluminium salophen and salen initiators in the ring-opening polymerisation of rac-lactide and rac-β-butyrolactone: Electronic effects on stereoselectivity and polymerisation rates. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.08.023] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Qiu J, Lu M, Yao Y, Zhang Y, Wang Y, Shen Q. Synthesis and characterization of bimetallic lanthanide-alkali metal complexes stabilized by aminophenoxy ligands and their catalytic activity for the polymerization of 2,2-dimethyltrimethylene carbonate. Dalton Trans 2013; 42:10179-89. [PMID: 23722630 DOI: 10.1039/c3dt50918d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electronic properties of the aminophenolate groups have obvious effect on the synthesis of aminophenolate lanthanide-lithium complexes. Amine elimination reactions of Ln[N(SiMe3)2]3(μ-Cl)Li(THF)3 with lithium aminophenolates [ArNHCH2(3,5-(t)Bu2C6H2-2-O)Li(THF)]2 (Ar = p-ClC6H4, [ONH](Cl-p); p-BrC6H4, [ONH](Br-p)) in tetrahydrofuran (THF) in a 1 : 2 molar ratio gave the bimetallic lanthanide-lithium amido complexes [NO](Cl-p)2Ln[N(SiMe3)2][Li(THF)]2 (Ln = Y (1), Yb (2)), and [NO](Br-p)2Ln[N(SiMe3)2][Li(THF)]2 (Ln = Y (3), Yb (4)). When the Ar groups are p-MeOC6H4, ([ONH](MeO-p)) and o-MeOC6H4 ([ONH](MeO-o)), similar reactions generated the homoleptic lanthanide-lithium complexes [NO](MeO-p)3Ln[Li(THF)]3 (Ln = Y (5), Yb (6)) and [NO](MeO-o)2Ln[Li(THF)] (Ln = Y (7), Yb (8)) in high isolated yields, respectively. Whereas the bimetallic lanthanide-lithium amido complexes [NO](Cl-o)2Ln[N(SiMe3)2][Li(THF)]2 (Ln = Y (9), Yb (10)) can be obtained in good yields, when the Ar group is o-ClC6H4 ([ONH](Cl-o)). All of these complexes were well characterized. X-ray structure determination revealed that these complexes have solvated monomeric structures. In complexes 1-4, 9, and 10, the lanthanide atom is five-coordinated by two oxygen atoms and two nitrogen atoms from two aminophenoxy ligands and one nitrogen atom from N(SiMe3)2 group to form a distorted trigonal bipyramidal geometry, whereas in complexes 5-8, the central lanthanide atom is six-coordinated by oxygen atoms, and nitrogen atoms from the aminophenoxy ligands to form a distorted octahedron. It was found that complexes 1-10 are highly efficient initiators for the ring-opening polymerization of 2,2-dimethyltrimethylene carbonate (DTC), affording the polymers with high molecular weights, and the homoleptic heterobimetallic lanthanide complexes showed apparently high activity.
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Affiliation(s)
- Jinshui Qiu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou, 215123, People's Republic of China
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24
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Nie K, Gu W, Yao Y, Zhang Y, Shen Q. Synthesis and Characterization of Salalen Lanthanide Complexes and Their Application in the Polymerization of rac-Lactide. Organometallics 2013. [DOI: 10.1021/om4001023] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kun Nie
- Key Laboratory of
Organic Synthesis
of Jiangsu Province, College of
Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
| | - Weikai Gu
- Key Laboratory of
Organic Synthesis
of Jiangsu Province, College of
Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
| | - Yingming Yao
- Key Laboratory of
Organic Synthesis
of Jiangsu Province, College of
Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
- The Institute of Low Carbon Economy, Suzhou 215123, People’s Republic
of China
| | - Yong Zhang
- Key Laboratory of
Organic Synthesis
of Jiangsu Province, College of
Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
| | - Qi Shen
- Key Laboratory of
Organic Synthesis
of Jiangsu Province, College of
Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
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25
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Fan L, Wang Y, Yao Y, Wu B, Shen Q. Synthesis, Structure, and Catalytic Behavior of Ytterbium Complexes Derived from a Linked Bis(β-ketoiminato) Ligand. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201200565] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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26
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Bakewell C, Cao TPA, Le Goff XF, Long NJ, Auffrant A, Williams CK. Yttrium Phosphasalen Initiators for rac-Lactide Polymerization. Organometallics 2013. [DOI: 10.1021/om301129k] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Clare Bakewell
- Department of Chemistry, Imperial College London, London SW7 2AZ, U.K
| | - Thi-Phuong-Anh Cao
- Laboratoire Heteroelements et
Coordination, CNRS, Ecole Polytechnique, 91128 Palaiseau Cedex, France
| | - Xavier F. Le Goff
- Laboratoire Heteroelements et
Coordination, CNRS, Ecole Polytechnique, 91128 Palaiseau Cedex, France
| | - Nicholas J. Long
- Department of Chemistry, Imperial College London, London SW7 2AZ, U.K
| | - Audrey Auffrant
- Laboratoire Heteroelements et
Coordination, CNRS, Ecole Polytechnique, 91128 Palaiseau Cedex, France
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27
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Dai Z, Zhang J, Gao Y, Tang N, Huang Y, Wu J. Synthesis and structures of tridentate β-diketiminato zinc phenoxides as catalysts for immortal ring-opening polymerization of l-lactide. Catal Sci Technol 2013. [DOI: 10.1039/c3cy00482a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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28
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Mazzeo M, Tramontano R, Lamberti M, Pilone A, Milione S, Pellecchia C. Rare earth complexes of phenoxy-thioether ligands: synthesis and reactivity in the ring opening polymerization of cyclic esters. Dalton Trans 2013; 42:9338-51. [DOI: 10.1039/c3dt00066d] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Nie K, Fang L, Yao Y, Zhang Y, Shen Q, Wang Y. Synthesis and Characterization of Amine-Bridged Bis(phenolate)lanthanide Alkoxides and Their Application in the Controlled Polymerization of rac-Lactide and rac-β-Butyrolactone. Inorg Chem 2012; 51:11133-43. [DOI: 10.1021/ic301746c] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kun Nie
- Key Laboratory of Organic Synthesis
of Jiangsu Province, College of Chemistry, Chemical Engineering and
Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
| | - Lei Fang
- Key Laboratory of Organic Synthesis
of Jiangsu Province, College of Chemistry, Chemical Engineering and
Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
| | - Yingming Yao
- Key Laboratory of Organic Synthesis
of Jiangsu Province, College of Chemistry, Chemical Engineering and
Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
- The Institute of Low Carbon Economy, Suzhou 215123, People’s Republic
of China
| | - Yong Zhang
- Key Laboratory of Organic Synthesis
of Jiangsu Province, College of Chemistry, Chemical Engineering and
Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
| | - Qi Shen
- Key Laboratory of Organic Synthesis
of Jiangsu Province, College of Chemistry, Chemical Engineering and
Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
| | - Yaorong Wang
- Key Laboratory of Organic Synthesis
of Jiangsu Province, College of Chemistry, Chemical Engineering and
Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
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