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Zhou S, Xu X, Zhu X, Zheng Y, Chen S, Xue M. A facile approach to C-functionalized β-ketoimine compounds via terminal alkylation of a tetralithiated intermediate. Org Biomol Chem 2022; 20:4289-4292. [PMID: 35574705 DOI: 10.1039/d2ob00640e] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of C-functionalized β-ketoimine compounds at the terminal methyl groups of the β-ketoimine precursor LphH2 (Lph = C6H4[NC(Me)CHC(Me)O]2) were prepared. This convenient transformation was realized via straightforward double alkylation on the terminal Cα of a novel bis-dianionic β-ketoiminate lithium complex [Lph'Li4(THF)4]2 (Lph' = C6H4[NC(Me)CHC(O)CH2]2) followed by hydrolysis.
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Affiliation(s)
- Shuai Zhou
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Xiaojuan Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Xu Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Yu Zheng
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Sufang Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Mingqiang Xue
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
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2
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Spectral, Structural, and Antibacterial Study of Copper(II) Complex with N2O2 Donor Schiff Base Ligand and Its Usage in Preparation of CuO Nanoparticles. J CHEM-NY 2022. [DOI: 10.1155/2022/8913874] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
A new Schiff base complex, Cu(H2L)2 (H3L: 6,6
-((1E,1
E)-((azanediylbis(ethane-2,1-diyl))bis(azanylylidene))bis(methanylylidene))bis(2-methoxyphenol)), through the reaction of ligand H3L with Cu(NO3)2 3H2O, in the ratio of 2 : 1 in methanol solvent was prepared. The obtained ligand (H3L) was characterized by FT-IR, 13C NMR, 1H NMR and elemental analyses. Then its copper(II) complex was prepared and characterized by FT-IR spectroscopy, thermal studies, elemental analyses and single crystal X-ray diffraction. The X-ray crystallography revealed that the two H3L ligands in bidentate fashion coordinated to one copper center for producing Cu(H2L)2 complex. We used copper(II) Schiff base complex, Cu(H2L)2, for the preparation of CuO nanoparticles via solid-state thermal decomposition. The crystalline structure of the product was studied by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). XRD indicated that the new product was copper oxide. SEM image showed that the size of CuO nanoparticles was between 46 and 53 nm, and they had uniform shape. The antibacterial properties of the complex and ligand were also investigated. The results revealed that Schiff base complex showed higher biological activity than Schiff base ligand.
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3
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Hylland KT, Gerz I, Wragg DS, Øien‐Ødegaard S, Tilset M. The Reactivity of Multidentate Schiff Base Ligands Derived from Bi‐ and Terphenyl Polyamines towards M(II) (M=Ni, Cu, Zn, Cd) and M(III) (M=Co, Y, Lu). Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100170] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Knut Tormodssønn Hylland
- Department of Chemistry University of Oslo P. O. Box 1033 Blindern 0315 Oslo Norway
- Centre for Materials Science and Nanotechnology University of Oslo P.O. Box 1126 Blindern 0316 Oslo Norway
| | - Isabelle Gerz
- Department of Chemistry University of Oslo P. O. Box 1033 Blindern 0315 Oslo Norway
- Centre for Materials Science and Nanotechnology University of Oslo P.O. Box 1126 Blindern 0316 Oslo Norway
| | - David S. Wragg
- Department of Chemistry University of Oslo P. O. Box 1033 Blindern 0315 Oslo Norway
- Centre for Materials Science and Nanotechnology University of Oslo P.O. Box 1126 Blindern 0316 Oslo Norway
| | - Sigurd Øien‐Ødegaard
- Department of Chemistry University of Oslo P. O. Box 1033 Blindern 0315 Oslo Norway
- Centre for Materials Science and Nanotechnology University of Oslo P.O. Box 1126 Blindern 0316 Oslo Norway
| | - Mats Tilset
- Department of Chemistry University of Oslo P. O. Box 1033 Blindern 0315 Oslo Norway
- Centre for Materials Science and Nanotechnology University of Oslo P.O. Box 1126 Blindern 0316 Oslo Norway
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Benítez-Puebla LJ, López J, Flores-Álamo M, Cruz DC, Peña-Cabrera E, Delgado F, Tamariz J, Vázquez MA. Alkynyl Fischer Carbenes as a Platform for the Production of Difluorodiazaborinine Complexes via β-Amino-azadienes. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Luis J. Benítez-Puebla
- Departamento de Química; Universidad de Guanajuato; Noria Alta s/n, Col. Noria Alta C.P. 36050 Guanajuato Gto. México
| | - Julio López
- Departamento de Química; Universidad de Guanajuato; Noria Alta s/n, Col. Noria Alta C.P. 36050 Guanajuato Gto. México
| | - Marcos Flores-Álamo
- Unidad de Servicios de Apoyo a la Investigación; Universidad Nacional Autónoma de México; Ciudad Universitaria; C.P. 04510 CDMX México
| | - David Cruz Cruz
- Departamento de Química; Universidad de Guanajuato; Noria Alta s/n, Col. Noria Alta C.P. 36050 Guanajuato Gto. México
| | - Eduardo Peña-Cabrera
- Departamento de Química; Universidad de Guanajuato; Noria Alta s/n, Col. Noria Alta C.P. 36050 Guanajuato Gto. México
| | - Francisco Delgado
- Departamento de Química Orgánica; Escuela Nacional de Ciencias Biológicas-Instituto Politécnico Nacional; Prol. Carpio y Plan de Ayala s/n, Col. 11340 Santo Tomás CDMX México
| | - Joaquín Tamariz
- Departamento de Química Orgánica; Escuela Nacional de Ciencias Biológicas-Instituto Politécnico Nacional; Prol. Carpio y Plan de Ayala s/n, Col. 11340 Santo Tomás CDMX México
| | - Miguel A. Vázquez
- Departamento de Química; Universidad de Guanajuato; Noria Alta s/n, Col. Noria Alta C.P. 36050 Guanajuato Gto. México
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Bernadette Amali I, Kesavan MP, Vijayakumar V, Indra Gandhi N, Rajesh J, Rajagopal G. Structural analysis, antimicrobial and cytotoxic studies on new metal(II) complexes containing N2O2 donor Schiff base ligand. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.02.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Bar AK, Kalita P, Singh MK, Rajaraman G, Chandrasekhar V. Low-coordinate mononuclear lanthanide complexes as molecular nanomagnets. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.03.022] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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7
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Synthesis and structure characterization of homoleptic lanthanide complexes stabilized by Schiff-base ligands and their application in the polymerization of ε-caprolactone. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2017.12.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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8
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Roy S, Bhattacharyya A, Purkait S, Bauzá A, Frontera A, Chattopadhyay S. A combined experimental and computational study on supramolecular assemblies in hetero-tetranuclear nickel(ii)-cadmium(ii) complexes with N 2O 4-donor compartmental Schiff bases. Dalton Trans 2018; 45:15048-15059. [PMID: 27722334 DOI: 10.1039/c6dt02587k] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Two new hetero-tetranuclear nickel(ii)/cadmium(ii) complexes, a cubane [(CH3CO2)2Ni2(L1)2Cd2(NCS)2] (1) and a linear tetramer [(DMSO)2NiL2Cd(NCS)(μ1,3-SCN)Ni(DMSO)L2Cd(NCS)2] (2) {where H2L1 = N,N'-bis(3-methoxysalicylidene)propane-1,3-diamine and H2L2 = N,N'-bis(3-ethoxysalicylidene)propane-1,3-diamine are potential octadentate compartmental Schiff bases}, were synthesized and characterized. The structures of both complexes were confirmed by single crystal X-ray diffraction studies. Complex 1 contained a Ni2Cd2O4 cubane core, whereas complex 2 featured an end-to-end thiocyanate-bridged tetranuclear moiety. Furthermore, complex 1 showed C-HH-C interactions, whereas a unique Sπ interaction was observed in complex 2. Theoretical studies were performed using several computational tools such as NBO and AIM analyses. Both complexes showed photoluminescence in DMSO medium at room temperature upon irradiation with ultraviolet light. The lifetimes of the excited states were ∼27 ns.
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Affiliation(s)
- Sourav Roy
- Department of Chemistry, Inorganic Section, Jadavpur University, Kolkata - 700032, India.
| | - Anik Bhattacharyya
- Department of Chemistry, Inorganic Section, Jadavpur University, Kolkata - 700032, India.
| | - Sourav Purkait
- Department of Chemistry, Inorganic Section, Jadavpur University, Kolkata - 700032, India.
| | - Antonio Bauzá
- Departamento de Química, Universitat de les Illes Balears, Crta. deValldemossa km 7.5, 07122 Palma, Baleares, Spain.
| | - Antonio Frontera
- Departamento de Química, Universitat de les Illes Balears, Crta. deValldemossa km 7.5, 07122 Palma, Baleares, Spain.
| | - Shouvik Chattopadhyay
- Department of Chemistry, Inorganic Section, Jadavpur University, Kolkata - 700032, India.
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9
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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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10
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Ghosh K, Harms K, Bauzá A, Frontera A, Chattopadhyay S. Heteronuclear cobalt(iii)/sodium complexes with salen type compartmental Schiff base ligands: methylene spacer regulated variation in nuclearity. Dalton Trans 2018; 47:331-347. [DOI: 10.1039/c7dt03929h] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Three unique heteronuclear cobalt(iii)/sodium Schiff base complexes have been synthesized and characterized. Nuclearity of these complexes changes as a result of alteration of the steric hindrance in the ligand moiety.
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Affiliation(s)
- Kousik Ghosh
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata 700032
- India
| | - Klaus Harms
- Fachbereich Chemie
- Philipps-Universität Marburg
- Hans-Meerwein-Strasse
- D-35032 Marburg
- Germany
| | - Antonio Bauzá
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
| | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
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11
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Xia Q, Cui Y, Yuan D, Wang Y, Yao Y. Synthesis and characterization of lanthanide complexes stabilized by N -aryl substituted β -ketoiminato ligands and their application in the polymerization of rac -lactide. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.06.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Tang X, Shi X, Xu Y, Shen K, Mao S, Wu H. Synthesis, Crystal Structure, Fluorescent and Antioxidation Properties of Cerium(III) and Europium(III) Complexes with Bis(3-methoxysalicylidene)-3-oxapentane-1,5-diamine. Z Anorg Allg Chem 2017. [DOI: 10.1002/zaac.201600434] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Xia Tang
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; 730070 Lanzhou Gansu P. R. China
| | - Xinkui Shi
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; 730070 Lanzhou Gansu P. R. China
| | - Yuling Xu
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; 730070 Lanzhou Gansu P. R. China
| | - Kesheng Shen
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; 730070 Lanzhou Gansu P. R. China
| | - Shanshan Mao
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; 730070 Lanzhou Gansu P. R. China
| | - Huilu Wu
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; 730070 Lanzhou Gansu P. R. China
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13
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Gu X, Wang S, Wei Y, Zhu X, Zhou S, Huang Z, Mu X. Rare earth metal bisamido complexes with an NNO tridentate ligand and catalytic activity for the selective polymerization of isoprene. NEW J CHEM 2017. [DOI: 10.1039/c7nj01454f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of rare earth metal bisamido complexes was synthesized, which could effectively initiate the polymerization of isoprene to afford polyisoprene with high regio- and stereo-selectivity in the presence of cocatalysts.
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Affiliation(s)
- Xiaoxia Gu
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
| | - Shaowu Wang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
| | - Yun Wei
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
| | - Xiancui Zhu
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
| | - Shuangliu Zhou
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
| | - Zeming Huang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
| | - Xiaolong Mu
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
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14
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Chile LE, Ebrahimi T, Wong A, Aluthge DC, Hatzikiriakos SG, Mehrkhodavandi P. Impact of aryloxy initiators on the living and immortal polymerization of lactide. Dalton Trans 2017; 46:6723-6733. [DOI: 10.1039/c7dt00990a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This report describes two different methodologies for the synthesis of aryl end-functionalized poly(lactide)s (PLAs) catalyzed by indium complexes.
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Affiliation(s)
- L.-E. Chile
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
- Department of Chemical and Biological Engineering
| | - T. Ebrahimi
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
- Department of Chemical and Biological Engineering
| | - A. Wong
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - D. C. Aluthge
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - S. G. Hatzikiriakos
- Department of Chemical and Biological Engineering
- University of British Columbia
- Vancouver
- Canada
| | - P. Mehrkhodavandi
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
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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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Hemmer E, Cavelius C, Huch V, Mathur S. Templating Influence of Molecular Precursors on Pr(OH)3 Nanostructures. Inorg Chem 2015; 54:6267-80. [DOI: 10.1021/acs.inorgchem.5b00529] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Eva Hemmer
- Institut National de la Recherche Scientifique—Énergie
Matériaux Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1S2, Canada
- Leibniz Institute of New Materials, Im Stadtwald, Building
D2 2, 66123 Saarbruecken, Germany
| | - Christian Cavelius
- Leibniz Institute of New Materials, Im Stadtwald, Building
D2 2, 66123 Saarbruecken, Germany
| | - Volker Huch
- Institute of Inorganic Chemistry, Saarland University, P.O. Box 151150, 66041 Saarbruecken, Germany
| | - Sanjay Mathur
- Institute of Inorganic Chemistry, University of Cologne, Greinstrasse
6, 50939 Cologne, Germany
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Hong Y, Zheng Y, Xue M, Yao Y, Zhang Y, Shen Q. Phenylene-bridged β-Ketoiminate Dilanthanide Aryloxides: Synthesis, Structure, and Catalytic Activity for Addition of Amines to Carbodiimides. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201500047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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18
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Syntheses and structural characterization of σ-/π-aryloxo cobalt(II) complexes and radical aryloxo sodium complex. Polyhedron 2015. [DOI: 10.1016/j.poly.2014.11.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Das K, Nandi S, Mondal S, Askun T, Cantürk Z, Celikboyun P, Massera C, Garribba E, Datta A, Sinha C, Akitsu T. Triply phenoxo bridged Eu(iii) and Sm(iii) complexes with 2,6-diformyl-4-methylphenol-di(benzoylhydrazone): structure, spectra and biological study in human cell lines. NEW J CHEM 2015. [DOI: 10.1039/c4nj01464b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two dinuclear lanthanide(iii) complexes, [M2(HL)3] (M = Sm(iii) (1), Eu(iii) (2); H3L, 2,6-diformyl-4-methylphenol-di(benzoylhydrazone)) were generated with good yield and characterised systematically.
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20
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Zheng Y, Jiao R, Shen X, Xue M, Yao Y, Zhang Y, Shen Q. Bis(β‐diketiminato) lanthanide amides: synthesis, structure and catalysis for the polymerization of
l
‐lactide and ε‐caprolactone. Appl Organomet Chem 2014. [DOI: 10.1002/aoc.3150] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yu Zheng
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of ChemistryChemical Engineering and Materials ScienceSoochow University Suzhou 215123 People's Republic of China
| | - Rui Jiao
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of ChemistryChemical Engineering and Materials ScienceSoochow University Suzhou 215123 People's Republic of China
| | - Xiao‐dong Shen
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of ChemistryChemical Engineering and Materials ScienceSoochow University Suzhou 215123 People's Republic of China
| | - Ming‐qiang Xue
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of ChemistryChemical Engineering and Materials ScienceSoochow University Suzhou 215123 People's Republic of China
| | - Ying‐ming Yao
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of ChemistryChemical Engineering and Materials ScienceSoochow University Suzhou 215123 People's Republic of China
| | - Yong Zhang
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of ChemistryChemical Engineering and Materials ScienceSoochow University Suzhou 215123 People's Republic of China
| | - Qi Shen
- Key Laboratory of Organic Synthesis of Jiangsu ProvinceCollege of ChemistryChemical Engineering and Materials ScienceSoochow University Suzhou 215123 People's Republic of China
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Fadaee F, Amirnasr M, Schenk-Joß K. Synthesis, characterization and X-ray crystal structures of two polymorphs of a cobalt(III) complex with a N3O2 pentadentate Schiff base ligand, and benzylamine: spectral and electrochemical studies. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2013. [DOI: 10.1007/s13738-013-0246-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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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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23
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Chuang HJ, Chen HL, Huang BH, Tsai TE, Huang PL, Liao TT, Lin CC. Efficient zinc initiators supported by NNO-tridentate ketiminate ligands for cyclic esters polymerization. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26486] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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24
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Ping Z. Bis{6-bromo-4-chloro-2-[( E)-(2-chlorophenyl)iminomethyl]phenolato-κ 2N, O}copper(II). Acta Crystallogr Sect E Struct Rep Online 2012; 68:m1118. [PMID: 22904769 PMCID: PMC3414162 DOI: 10.1107/s1600536812025044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2012] [Accepted: 06/01/2012] [Indexed: 11/10/2022]
Abstract
In the title compound, [Cu(C13H7BrCl2NO)2], or CuL2{where HL= 2-[(E)-(2-chlorophenylimino)methyl]-6-bromo-4-chlorophenol}, the CuIIatom is located on an inversion center and has a square-planar coordination. In the crystal, complex molecules are linked via Cu...Cl interactions [2.9933 (11) Å], forming a two-dimensional network parallel to thebcplane. They are also Cl...Cl interactions [3.3709 (14) Å] present, which consolidate the two-dimensional network structure.
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Lv W, Wang Y, Wu B, Yao Y, Shen Q. Synthesis, Structure, and Reactivity of Homodinuclear Lanthanide Complexes Bearing Salen-type Schiff-base Ligand. Z Anorg Allg Chem 2012. [DOI: 10.1002/zaac.201200046] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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26
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Anionic lanthanide complexes supported by a pyrrole-based tetradentate Schiff base ligand: Synthesis, structures and catalytic activity toward the polymerization of ε-caprolactone. Polyhedron 2012. [DOI: 10.1016/j.poly.2011.11.029] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Huang LL, Han XZ, Yao YM, Zhang Y, Shen Q. Synthesis of ferrocene-containing N-aryloxo β-ketoiminate lanthanide complexes and polymerization of ε-caprolactone. Appl Organomet Chem 2011. [DOI: 10.1002/aoc.1788] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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28
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Han F, Teng Q, Zhang Y, Wang Y, Shen Q. Influence of Schiff base and lanthanide metals on the synthesis, stability, and reactivity of monoamido lanthanide complexes bearing two Schiff bases. Inorg Chem 2011; 50:2634-43. [PMID: 21319780 DOI: 10.1021/ic102529d] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The monoamido lanthanide complexes stabilized by Schiff base ligand L(2)LnN(TMS)(2) (L = 3,5-Bu(t)(2)-2-(O)-C(6)H(2)CH═N-8-C(9)H(6)N, Ln = Yb (1), Y (2), Eu (3), Nd (4), and La (5)) were synthesized in good yields by the reactions of Ln[N(TMS)(2)](3) with 1.8 equiv of HL in hexane at room temperature. It was found that the stability of 1-5 depends greatly on the size of the lanthanide metals with the increasing trend of Yb ≈ Y < Nd < La. The amine elimination of Ln[N(TMS)(2)](3) with the bulky bidentate Schiff base HL' (L' = 3,5-Bu(t)(2)-2-(O)-C(6)H(2)CH═N-2,6-Pr(i)(2)-C(6)H(3)) afforded the monoamido lanthanide complexes L'(2)LnN(TMS)(2) (Ln = Yb (9), Y (10), Nd (11), and La (12)). While the amine elimination with the less bulky Schiff base HL'' (L'' = 3,5-Bu(t)(2)-2-(O)-C(6)H(2)CH═N-2,6-Me(2)-C(6)H(3)) yielded the desired monoamido complexes with the small metals of Y and Yb, L''(2)LnN(TMS)(2) (Ln = Yb (13) and Y (14)), and the more stable tris-Schiff base complexes with the large metals of La and Nd, yielded L''(3)Ln as the only product. Complexes 1-14 were fully characterized including X-ray crystal structural analysis. Complexes 1-5, 10, and 14 can serve as the efficient catalysts for addition of amines to carbodiimides, and the catalytic activity is greatly affected by the lanthanide metals with the active sequence of Yb < Y < Eu ≈ Nd ≈ La.
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Affiliation(s)
- Fubin Han
- Key Laboratory of Organic Synthesis of Jiangsu Province, Department of Chemistry and Chemical Engineering, Dushu Lake Campus, Soochow University, Suzhou 215123, People's Republic of China
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Huang Y, Tsai YH, Hung WC, Lin CS, Wang W, Huang JH, Dutta S, Lin CC. Synthesis and structural studies of lithium and sodium complexes with OOO-tridentate bis(phenolate) ligands: effective catalysts for the ring-opening polymerization of L-lactide. Inorg Chem 2011; 49:9416-25. [PMID: 20843075 DOI: 10.1021/ic1011154] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of lithium and sodium complexes with OOO-tridentate bis(phenolate) ligands have been synthesized and fully characterized. The reaction of 2,2'-dihydroxy-3,3',5,5'-tetrakis[(1-methyl-1-phenyl)ethyl]dibenzyl ether (L(1)-H(2)) with different ratios of (n)BuLi in toluene or tetrahydrofuran (THF) gave [Li(2)(L(1)-H)(2)] (1), [Li(4)L(1)(2)] (2), and [Li(2)L(1)(THF)(3)] (3), respectively. Similarly, [Na(L(1)-H)(THF)] (4), [Na(2)(L(1)-H)](2) (5), and [Na(4)L(1)(2)] (6) were prepared by the reaction of L(1)-H(2) and NaN[Si(CH(3))(3)](2) or sodium metal. In addition, the reaction of 2,2'-dihydroxy-3,3',5,5'-tetra-tert-butyldibenzyl ether (L(2)-H(2)) with (n)BuLi in toluene or THF yields Li(2)(L(2)-H)(2)] (7) and [Li(2)(L(2)-H)(2)(THF)(2)] (8), respectively. Further treatment of 7 with 2 mol equiv of benzyl alcohol provides [Li(2)(L(2)-H)(2)(BnOH)(2)] (9). Complexes 1-4 and 6-9 have been structurally characterized by single-crystal X-ray analysis. The dinuclear nature of complexes 1 and 3 was confirmed from their molecular structure. Complexes 2 and 6 illustrate tetranuclear species; however, complex 4 shows a mononuclear feature. A p-π interaction exists from the phenyl ring of the 2-(methyl-1-phenylethyl) groups to the central metal in complexes 2, 4, and 6, which could effectively stabilize the metal center. Among them, complexes 1, 2, and 5-9 displayed efficient catalytic behavior for the ring-opening polymerization of L-lactide in the presence of benzyl alcohol. Experimental results indicate that among these alkali-metal complexes, the sodium compound 6 displays a rapid catalytic polymerization of L-lactide in "living" fashion, yielding poly(L-lactide) with a controlled molecular weight and narrow polydispersity indices for a wide range of monomer-to-initiator ratios.
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Affiliation(s)
- Yong Huang
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan, Republic of China
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30
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Li BY, Yao YM, Wang YR, Zhang Y, Shen Q. Synthesis, reactivity and structural characterization of ytterbium complexes bearing a tridentate [O,N,N] Schiff base ligand. Polyhedron 2011. [DOI: 10.1016/j.poly.2010.09.032] [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]
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31
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Gu XY, Han XZ, Yao YM, Zhang Y, Shen Q. Synthesis and characterization of lanthanide complexes bearing a ferrocene-containing N-aryloxo-β-ketoiminate ligand. J Organomet Chem 2010. [DOI: 10.1016/j.jorganchem.2010.07.037] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Xu B, Han X, Yao Y, Zhang Y, Shen Q. Synthesis and Structural Characterization of Lanthanide Amides Stabilized by an N-Aryloxo Functionalized β-Ketoiminate Ligand. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.201090159] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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33
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Corrente AM, Chivers T. Lanthanide Complexes of Boraamidinate Ligands: Synthesis and X-ray Structures of {[Li(THF)4][bamLnCl2(THF)]}2 (bam = [PhB(NDipp)2]2−; Ln = Y, Pr, Nd, Sm, Ho, Er, Yb) and {bamLnCl(THF)2}2 (Ln = Y, Sm). Inorg Chem 2010; 49:2457-63. [DOI: 10.1021/ic9023184] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andrea M. Corrente
- Department of Chemistry, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Tristram Chivers
- Department of Chemistry, University of Calgary, Calgary, Alberta T2N 1N4, Canada
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34
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Li B, Wang Y, Yao Y, Zhang Y, Shen Q. Synthesis, structure and reactivity of samarium complexes supported by Schiff-base ligands. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2009.03.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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35
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Huang Y, Hung WC, Liao MY, Tsai TE, Peng YL, Lin CC. Ring-opening polymerization of lactides initiated by magnesium and zinc complexes based on NNO-tridentate ketiminate ligands: Activity and stereoselectivity studies. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23314] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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36
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Qin D, Han F, Yao Y, Zhang Y, Shen Q. Migration of amide to imine group of lanthanide Schiff base complexes: effect of amido group. Dalton Trans 2009:5535-41. [DOI: 10.1039/b904580e] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Janini TE, Rakosi III R, Durr CB, Bertke JA, Bunge SD. 1,1,3,3-Tetramethylguanidine solvated lanthanide aryloxides: pre-catalysts for intramolecular hydroalkoxylation. Dalton Trans 2009:10601-8. [DOI: 10.1039/b917377c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Peng H, Zhang Z, Qi R, Yao Y, Zhang Y, Shen Q, Cheng Y. Synthesis, Reactivity, and Characterization of Sodium and Rare-Earth Metal Complexes Bearing a Dianionic N-Aryloxo-Functionalized β-Ketoiminate Ligand. Inorg Chem 2008; 47:9828-35. [DOI: 10.1021/ic8011469] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hongmei Peng
- Key Laboratory of Organic Synthesis of Jiangsu Province, Department of Chemistry and Chemical Engineering, Dushu Lake Campus, Suzhou University, Suzhou 215123, People’s Republic of China, and State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Zhenqin Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, Department of Chemistry and Chemical Engineering, Dushu Lake Campus, Suzhou University, Suzhou 215123, People’s Republic of China, and State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Ruipeng Qi
- Key Laboratory of Organic Synthesis of Jiangsu Province, Department of Chemistry and Chemical Engineering, Dushu Lake Campus, Suzhou University, Suzhou 215123, People’s Republic of China, and State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Yingming Yao
- Key Laboratory of Organic Synthesis of Jiangsu Province, Department of Chemistry and Chemical Engineering, Dushu Lake Campus, Suzhou University, Suzhou 215123, People’s Republic of China, and State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Yong Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, Department of Chemistry and Chemical Engineering, Dushu Lake Campus, Suzhou University, Suzhou 215123, People’s Republic of China, and State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Qi Shen
- Key Laboratory of Organic Synthesis of Jiangsu Province, Department of Chemistry and Chemical Engineering, Dushu Lake Campus, Suzhou University, Suzhou 215123, People’s Republic of China, and State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Yanxiang Cheng
- Key Laboratory of Organic Synthesis of Jiangsu Province, Department of Chemistry and Chemical Engineering, Dushu Lake Campus, Suzhou University, Suzhou 215123, People’s Republic of China, and State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
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Solvothermal synthesis, a new preparative route to mononuclear lanthanide complexes with in situ built N4O2 hexadendate Schiff base. Synthesis and crystal structure of N,N′-bis[(2-salicylideneamino)ethyl]ethane-1,2-diamine nitrato[O,O]Erbium(III) hydrate. INORG CHEM COMMUN 2008. [DOI: 10.1016/j.inoche.2008.05.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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40
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LI B, YAO Y, WANG Y, ZHANG Y, SHEN Q. Synthesis and characterization of lanthanide complexes containing a bulky tridentate [N,N,O] Schiff base ligand. J RARE EARTH 2008. [DOI: 10.1016/s1002-0721(08)60120-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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41
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Huang C, Hsueh L, Kuo P, Lee HM, Uno C, Huang J, Tu C, Hu C, Lee G, Hung C. Aluminum Complexes Containing Cyclohexane‐1,2‐diyl Linked Bis(ketiminato) Ligands and Proton‐Promoted Demethylation. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200800057] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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42
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Pang X, Du H, Chen X, Wang X, Jing X. Enolic Schiff Base Aluminum Complexes and Their Catalytic Stereoselective Polymerization of Racemic Lactide. Chemistry 2008; 14:3126-36. [DOI: 10.1002/chem.200701473] [Citation(s) in RCA: 120] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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43
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Ma H, Spaniol TP, Okuda J. Rare-Earth Metal Complexes Supported by 1,ω-Dithiaalkanediyl-Bridged Bis(phenolato) Ligands: Synthesis, Structure, and Heteroselective Ring-Opening Polymerization of rac-Lactide. Inorg Chem 2008; 47:3328-39. [DOI: 10.1021/ic702312b] [Citation(s) in RCA: 164] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Haiyan Ma
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, D-52056 Aachen, Germany
| | - Thomas P. Spaniol
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, D-52056 Aachen, Germany
| | - Jun Okuda
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, D-52056 Aachen, Germany
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44
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Li BY, Yao YM, Wang YR, Zhang Y, Shen Q. Reduction of imine of samarium Schiff base chloride by sodium—Formation of a novel samarium complex through unprecedented C–C coupling and hydrogen transfer reaction. INORG CHEM COMMUN 2008. [DOI: 10.1016/j.inoche.2007.12.035] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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45
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Synthesis, reactivity and structural characterization of sodium and ytterbium complexes stabilized by a tridentate [N,N,O] Schiff base ligand. Polyhedron 2008. [DOI: 10.1016/j.poly.2007.10.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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46
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Dove AP. Controlled ring-opening polymerisation of cyclic esters: polymer blocks in self-assembled nanostructures. Chem Commun (Camb) 2008:6446-70. [DOI: 10.1039/b813059k] [Citation(s) in RCA: 263] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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47
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Yan P, Sun W, Li G, Nie C, Gao T, Yue Z. Synthesis, characterization and fluorescence of lanthanide Schiff-base complexes. J COORD CHEM 2007. [DOI: 10.1080/00958970701217602] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | | | - Guangming Li
- a School of Chemistry and Materials Science , Heilongjiang University , Harbin, 150080, PR China
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48
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Wade C, Lamprecht B, Day V, Belot J. Synthesis and structural characterization of two five coordinate aluminum alkyl and bis(trimethylsilyl)amino complexes bearing acyclic tetradentate Schiff bases. Polyhedron 2007. [DOI: 10.1016/j.poly.2007.03.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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49
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Banerjee S, Kumar GA, Riman RE, Emge TJ, Brennan JG. Oxoclusters of the Lanthanides Begin to Resemble Solid-State Materials at Very Small Cluster Sizes: Structure and NIR Emission from Nd(III). J Am Chem Soc 2007; 129:5926-31. [PMID: 17439214 DOI: 10.1021/ja069000a] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of Nd(SePh)3 with SeO2 and Hg in pyridine gives the dodecanuclear cluster [(py)18Nd12O6Se4(Se2)4(SePh)4(Se2Ph)2Hg2(SePh)4][(Hg(SePh)3]2. In this compound the 12 Nd(III) ions are stacked in four sets of Nd3, with pairs of tetrahedral oxo ligands separating the Nd3 planes and Se, SeSe, SePh, pyridine, and HgSePh groups encapsulating the oxo core. Both the Nd-O bond lengths and the geometries about the oxo ions are remarkably similar to those found in solid-state Nd2O3. Near-IR emission experiments indicate that the cluster emission properties are less intense than those of highly emissive (DME)2Nd(SC6F5)3 or (THF)8Nd8O2Se2(SePh)16 but brighter than the nonemissive solid-state compound Nd2O3. Intensity variations are interpreted in terms of concentration quenching and phonon relaxation.
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Affiliation(s)
- Santanu Banerjee
- Department of Chemistry and Chemical Biology, the State University of New Jersey, Piscataway, New Jersey 08854-8087, USA
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50
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Pi C, Zhang Z, Pang Z, Zhang J, Luo J, Chen Z, Weng L, Zhou X. Multiple N−H Bond Activation: Synthesis and Reactivity of Functionalized Primary Amido Ytterbium Complexes. Organometallics 2007. [DOI: 10.1021/om061094+] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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