1
|
Stereoselective homo- and co-polymerization of lactides and ε-caprolactone catalysed by highly active racemic zinc(II) pyridyl complexes. TRANSIT METAL CHEM 2022. [DOI: 10.1007/s11243-022-00493-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
2
|
Haiduc I. ReviewInverse coordination. Organic nitrogen heterocycles as coordination centers. A survey of molecular topologies and systematization. Part 1. Five-membered and smaller rings. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1641702] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ionel Haiduc
- Facultatea de Chimie, Universitatea Babeş-Bolyai, Cluj-Napoca, Romania
| |
Collapse
|
3
|
Del Carmen Mancilla-González M, Hernádez-Balderas U, Moya-Cabrera MM, Ramírez-Palma LG, Martínez-Otero D, Cortés-Guzmán F, Jancik V. Self-Assembly of Aluminum- and Gallium-Based meso-Metallaporphyrins. Inorg Chem 2019; 58:265-278. [PMID: 30562011 DOI: 10.1021/acs.inorgchem.8b02347] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The molecular meso-metallaporphyrin has been obtained from the reaction of AlMe3 with the bulky 4,5-(Ph2(HO)C)2-1,2,3-triazole (1). The presence of Al-Me groups coordinated to the triazole rings creates three different stereoisomers that were identified by single-crystal X-ray diffraction. Further studies revealed that, for steric reasons, only one of the two main stereoisomers is active in the polymerization of ε-caprolactone. When GaMe3 is used instead of AlMe3, a trimetallic species is formed instead of the meso-metallaporphyrin pointing to a metal-directed self-assembly. On the other hand, the reaction of the monolithium salt [{Li(THF)2}{κ2- N, N'-4,5-(Ph2(HO)C)-1,2,3-triazole}]2 (2; THF = tetrahydrofuran) with MCl3 (M = Al, Ga) yields meso-metallaporphyrin species with a lithium atom in the center of the metallacycle. While the gallium derivative is rather stable in solution, the aluminum analogue decomposes rapidly. In the solid state, continuous cationic columns running throughout the whole crystal are formed from alternating Li⊂[M]4 (M = Al, Ga) meso-metallaporphyrin and [Li(THF)4]+ cations. Density functional theory calculations determined that the weak Cl···H, H···H, N···H, and Cl···O interactions with a total interaction energy of -38.6 kcal·mol-1 are responsible for this unusual packing.
Collapse
Affiliation(s)
- María Del Carmen Mancilla-González
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM , Carretera Toluca-Atlacomulco , km. 14.5 , Toluca , Estado de México C.P. 50200 , México.,Facultad de Química , Universidad Autónoma del Estado de México , Paseo Colón s/n, Residencial Colón , Toluca 50120 , México
| | - Uvaldo Hernádez-Balderas
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM , Carretera Toluca-Atlacomulco , km. 14.5 , Toluca , Estado de México C.P. 50200 , México
| | - Mónica Mercedes Moya-Cabrera
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM , Carretera Toluca-Atlacomulco , km. 14.5 , Toluca , Estado de México C.P. 50200 , México
| | - Lillian G Ramírez-Palma
- Instituto de Química , Universidad Nacional Autónoma de México, Ciudad Universitaria , Circuito Exterior s/n , Ciudad de México 04510 , México
| | - Diego Martínez-Otero
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM , Carretera Toluca-Atlacomulco , km. 14.5 , Toluca , Estado de México C.P. 50200 , México
| | - Fernando Cortés-Guzmán
- Instituto de Química , Universidad Nacional Autónoma de México, Ciudad Universitaria , Circuito Exterior s/n , Ciudad de México 04510 , México
| | - Vojtech Jancik
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM , Carretera Toluca-Atlacomulco , km. 14.5 , Toluca , Estado de México C.P. 50200 , México
| |
Collapse
|
4
|
Liu ZT, Li CY, Chen JD, Liu WL, Tsai CY, Ko BT. Titanium, aluminum and zinc complexes containing diamine-bis(benzotriazole phenolate) ligands: Synthesis, structural characterization and catalytic studies for ring-opening polymerization of ε-caprolactone. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.12.081] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
|
5
|
Aluminum complexes with benzoxazolphenolate ligands: Synthesis, characterization and catalytic properties for ring-opening polymerization of cyclic esters. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.03.042] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
6
|
Sun Z, Duan R, Yang J, Zhang H, Li S, Pang X, Chen W, Chen X. Bimetallic Schiff base complexes for stereoselective polymerisation of racemic-lactide and copolymerisation of racemic-lactide with ε-caprolactone. RSC Adv 2016. [DOI: 10.1039/c6ra00289g] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Bimetallic Schiff-base complexes with different bridging parts and silyl-substituents were applied for stereoselective ROP ofrac-LA, and copolymerisation ofrac-LA/ε-CL.
Collapse
Affiliation(s)
- Zhiqiang Sun
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Ranlong Duan
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Jingwei Yang
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Han Zhang
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Shuai Li
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Xuan Pang
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Wenqi Chen
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| |
Collapse
|
7
|
Huang BH, Tsai CY, Chen CT, Ko BT. Metal complexes containing nitrogen-heterocycle based aryloxide or arylamido derivatives as discrete catalysts for ring-opening polymerization of cyclic esters. Dalton Trans 2016; 45:17557-17580. [DOI: 10.1039/c6dt03384a] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This perspective highlights some recent advances in the field of discrete N-heterocyclic aryloxide/arylamido metal complexes for ROP of lactones.
Collapse
Affiliation(s)
- Bor-Hunn Huang
- Department of Chemistry
- National Chung Hsing University
- Taichung 402
- Taiwan
| | - Chen-Yen Tsai
- Department of Chemistry
- National Chung Hsing University
- Taichung 402
- Taiwan
| | - Chi-Tien Chen
- Department of Chemistry
- National Chung Hsing University
- Taichung 402
- Taiwan
| | - Bao-Tsan Ko
- Department of Chemistry
- National Chung Hsing University
- Taichung 402
- Taiwan
| |
Collapse
|
8
|
Effect of the phenyl ring substituent on stereoselectivity in the ring-opening polymerization of the rac-lactide initiated by salen aluminum complexes. Colloid Polym Sci 2015. [DOI: 10.1007/s00396-015-3720-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
9
|
Wang JH, Tsai CY, Su JK, Huang BH, Lin CC, Ko BT. Mono-, di- and tetra-zinc complexes derived from an amino-benzotriazole phenolate ligand containing a bulkier N-alkyl pendant arm: synthesis, structure and catalysis for ring-opening polymerization of cyclic esters. Dalton Trans 2015; 44:12401-10. [PMID: 25727459 DOI: 10.1039/c4dt02906b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Zinc complexes constructed from the amino-modified benzotriazole phenol pro-ligand, 2-(2H-benzotriazol-2-yl)-6-((diisopropylamino)methyl)-4-(2,4,4-trimethylpentan-2-yl)phenol ((C8DIA)BTP-H, 1), were synthesized stepwise and structurally characterized. The reaction of (C8DIA)BTP-H (1) with one equivalent of diethyl zinc (ZnEt2) generates a dimeric and four-coordinated zinc complex, [(μ-(C8DIA)BTP)ZnEt]2 (2), which is doubly bridged by two phenolate groups of C8DIABTP ligands. Further reaction of 2 with benzyl alcohol (BnOH) in stoichiometric proportions affords a tetranuclear zinc benzylalkoxide complex [(μ-OBn)((C8DIA)BTP)Zn]4 (3) that possesses a saddle-shaped core with four μ2-bridging benzylalkoxy groups upon four Zn centres. Interestingly, the di-nuclear Zn alkoxide [(μ-OBn)((C8DIA)BTP)Zn(DMAP)]2 (4) could be prepared by treatment of 3 with a stoichiometric amount of 4-(dimethylamino)pyridine (DMAP). ZnEt2 reacts with two equivalents of 1 in the presence of DMAP (1.0 mol equiv.) to yield a five-coordinated mononuclear zinc complex, [((C8DIA)BTP)2Zn(DMAP)] (5). All complexes adopt an N,O-bidentate coordination mode from the phenoxy oxygen atom and benzotriazole nitrogen atom, in which the nitrogen atom of the pendent arm substituent is not coordinated to the zinc centre. Ring-opening polymerization of ε-caprolactone and β-butyrolactone catalysed by 2 and 3 was investigated.
Collapse
Affiliation(s)
- Jun-Han Wang
- Department of Chemistry, Chung Yuan Christian University, Chung-Li 320, Taiwan
| | | | | | | | | | | |
Collapse
|
10
|
Gao B, Li D, Li Y, Duan Q, Duan R, Pang X. Ring-opening polymerization of lactide using chiral salen aluminum complexes as initiators: high productivity and stereoselectivity. NEW J CHEM 2015. [DOI: 10.1039/c5nj00469a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Chiral salen aluminum complexes have been synthesized and investigated as initiators for l-lactide and rac-lactide polymerization.
Collapse
Affiliation(s)
- Bo Gao
- School of Materials Science and Engineering
- Changchun University of Science and Technology
- Changchun 130022
- China
- Key Laboratory of Polymer Ecomaterials
| | - Dongni Li
- School of Materials Science and Engineering
- Changchun University of Science and Technology
- Changchun 130022
- China
| | - Yanhui Li
- School of Materials Science and Engineering
- Changchun University of Science and Technology
- Changchun 130022
- China
| | - Qian Duan
- School of Materials Science and Engineering
- Changchun University of Science and Technology
- Changchun 130022
- China
| | - Ranlong Duan
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences
- Changchun 130022
- China
| | - Xuan Pang
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences
- Changchun 130022
- China
| |
Collapse
|
11
|
Chen TY, Li CY, Tsai CY, Li CH, Chang CH, Ko BT, Chang CY, Lin CH, Huang HY. Structurally well-characterized zinc complexes bearing imine-benzotriazole phenoxide ligands: Synthesis, photoluminescent properties and catalysis for carbon dioxide/epoxide coupling. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.12.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
12
|
Chuang HJ, Wu BH, Li CY, Ko BT. Benzotriazole Phenoxide Hafnium Complexes as Efficient Catalysts for the Ring-Opening Polymerization of Lactide: Synthesis, Characterization, and Kinetics of Polymerization Catalysis. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201301422] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
13
|
Li CY, Hsu SJ, Lin CL, Tsai CY, Wang JH, Ko BT, Lin CH, Huang HY. Air-stable copper derivatives as efficient catalysts for controlled lactide polymerization: Facile synthesis and characterization of well-defined benzotriazole phenoxide copper complexes. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26780] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Chen-Yu Li
- Department of Chemistry; Chung Yuan Christian University; Chung-Li 32023 Taiwan
| | - Shi-Jie Hsu
- Department of Chemistry; Chung Yuan Christian University; Chung-Li 32023 Taiwan
| | - Chin-lung Lin
- Department of Chemistry; Chung Yuan Christian University; Chung-Li 32023 Taiwan
| | - Chen-Yen Tsai
- Department of Chemistry; Chung Yuan Christian University; Chung-Li 32023 Taiwan
| | - Jun-Han Wang
- Department of Chemistry; Chung Yuan Christian University; Chung-Li 32023 Taiwan
| | - Bao-Tsan Ko
- Department of Chemistry; Chung Yuan Christian University; Chung-Li 32023 Taiwan
- Department of Chemistry; National Chung Hsing University; Taichung 402 Taiwan
| | - Chia-Her Lin
- Department of Chemistry; Chung Yuan Christian University; Chung-Li 32023 Taiwan
| | - Hsi-Ya Huang
- Department of Chemistry; Chung Yuan Christian University; Chung-Li 32023 Taiwan
| |
Collapse
|
14
|
Postigo L, Maestre MDC, Mosquera MEG, Cuenca T, Jiménez G. Aminoarenethiolate Aluminum Complexes: Synthesis, Characterization, and Use in l-Lactide Polymerization. Organometallics 2013. [DOI: 10.1021/om400111f] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Lorena Postigo
- Departamento
de
Quı́mica Inorgánica, Universidad de Alcalá, Campus Universitario,
E-28871 Alcalá de Henares (Madrid), Spain
| | - Marı́a del Carmen Maestre
- Departamento
de
Quı́mica Inorgánica, Universidad de Alcalá, Campus Universitario,
E-28871 Alcalá de Henares (Madrid), Spain
| | - Marta E. G. Mosquera
- Departamento
de
Quı́mica Inorgánica, Universidad de Alcalá, Campus Universitario,
E-28871 Alcalá de Henares (Madrid), Spain
| | - Tomás Cuenca
- Departamento
de
Quı́mica Inorgánica, Universidad de Alcalá, Campus Universitario,
E-28871 Alcalá de Henares (Madrid), Spain
| | - Gerardo Jiménez
- Departamento
de
Quı́mica Inorgánica, Universidad de Alcalá, Campus Universitario,
E-28871 Alcalá de Henares (Madrid), Spain
| |
Collapse
|
15
|
Li CY, Liu DC, Ko BT. Synthesis, characterization and reactivity of single-site aluminium amides bearing benzotriazole phenoxide ligands: catalysis for ring-opening polymerization of lactide and carbon dioxide/propylene oxide coupling. Dalton Trans 2013; 42:11488-96. [DOI: 10.1039/c3dt51003d] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Chen-Yu Li
- Department of Chemistry, Chung Yuan Christian University, Chung-Li 320, Taiwan
| | | | | |
Collapse
|
16
|
Pappuru S, Chokkapu ER, Chakraborty D, Ramkumar V. Group iv complexes containing the benzotriazole phenoxide ligand as catalysts for the ring-opening polymerization of lactides, epoxides and as precatalysts for the polymerization of ethylene. Dalton Trans 2013; 42:16412-27. [DOI: 10.1039/c3dt52065j] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
17
|
Li CY, Yu CJ, Ko BT. Facile Synthesis of Well-Defined Titanium Alkoxides Based on Benzotriazole Phenoxide Ligands: Efficient Catalysts for Ring-Opening Polymerization of Cyclic Esters. Organometallics 2012. [DOI: 10.1021/om300962k] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Chen-Yu Li
- Department of Chemistry, Chung Yuan Christian University, Chung-Li 320, Taiwan
| | - Chia-Jung Yu
- Department of Chemistry, Chung Yuan Christian University, Chung-Li 320, Taiwan
| | - Bao-Tsan Ko
- Department of Chemistry, Chung Yuan Christian University, Chung-Li 320, Taiwan
| |
Collapse
|