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Oberhauser W, Evangelisti C, Caporali S, Dal Santo V, Bossola F, Vizza F. Ethyl lactate from dihydroxyacetone by a montmorillonite-supported Pt(II) diphosphane complex. J Catal 2017. [DOI: 10.1016/j.jcat.2017.04.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Golecki M, Lach J, Jeremies A, Lungwitz F, Fronk M, Salvan G, Zahn DRT, Park J, Krupskaya Y, Kataev V, Klingeler R, Büchner B, Mahns B, Knupfer M, Siles PF, Grimm D, Schmidt OG, Reis A, Thiel WR, Breite D, Abel B, Kersting B. Chemisorption of exchange-coupled [Ni2L(dppba)]+ complexes on gold by using ambidentate 4-(diphenylphosphino)benzoate co-ligands. Chemistry 2013; 19:7787-801. [PMID: 23595564 DOI: 10.1002/chem.201300496] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Indexed: 11/09/2022]
Abstract
A new strategy for the fixation of redox-active dinickel(II) complexes with high-spin ground states to gold surfaces was developed. The dinickel(II) complex [Ni2L(Cl)]ClO4 (1ClO4), in which L(2-) represents a 24-membered macrocyclic hexaaza-dithiophenolate ligand, reacts with ambidentate 4-(diphenylphosphino)benzoate (dppba) to form the carboxylato-bridged complex [Ni2L(dppba)](+), which can be isolated as an air-stable perchlorate [Ni2L(dppba)]ClO4 (2ClO4) or tetraphenylborate [Ni2L(dppba)]BPh4 (2BPh4) salt. The auration of 2ClO4 was probed on a molecular level, by reaction with AuCl, which leads to the monoaurated Ni(II)2Au(I) complex [Ni(II)2L(dppba)Au(I)Cl]ClO4 (3ClO4). Metathesis of 3ClO4 with NaBPh4 produces [Ni(II)2L(dppba)Au(I)Ph]BPh4 (4BPh4), in which the Cl(-) is replaced by a Ph(-) group. The complexes were fully characterized by ESI mass spectrometry, IR and UV/Vis spectroscopy, X-ray crystallography (2BPh4 and 4BPh4), cyclic voltammetry, SQUID magnetometry and HF-ESR spectroscopy. Temperature-dependent magnetic susceptibility measurements reveal a ferromagnetic coupling J = +15.9 and +17.9 cm(-1) between the two Ni(II) ions in 2ClO4 and 4BPh4 (H = -2 JS1S2). HF-ESR measurements yield a negative axial magnetic anisotropy (D<0), which implies a bistable (easy axis) magnetic ground state. The binding of the [Ni2L(dppba)]ClO4 complex to gold was ascertained by four complementary surface analytical methods: contact angle measurements, atomic-force microscopy, X-ray photoelectron spectroscopy, and spectroscopic ellipsometry. The results indicate that the complexes are attached to the Au surface through coordinative Au-P bonds in a monolayer.
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Affiliation(s)
- Matthias Golecki
- Institut für Anorganische Chemie, Universität Leipzig, 04103 Leipzig, Germany
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Lohan M, Milde B, Heider S, Speck JM, Krauße S, Schaarschmidt D, Rüffer T, Lang H. Synthesis, Electrochemistry, Spectroelectrochemistry, and Solid-State Structures of Palladium Biferrocenylphosphines and Their Use in C,C Cross-Coupling Reactions. Organometallics 2012. [DOI: 10.1021/om201220w] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Manja Lohan
- Faculty of Science, Institute of
Chemistry, Department of Inorganic
Chemistry, Chemnitz University of Technology, Straße
der Nationen 62, 09111 Chemnitz, Germany
| | - Bianca Milde
- Faculty of Science, Institute of
Chemistry, Department of Inorganic
Chemistry, Chemnitz University of Technology, Straße
der Nationen 62, 09111 Chemnitz, Germany
| | - Silvio Heider
- Faculty of Science, Institute of
Chemistry, Department of Inorganic
Chemistry, Chemnitz University of Technology, Straße
der Nationen 62, 09111 Chemnitz, Germany
| | - J. Matthäus Speck
- Faculty of Science, Institute of
Chemistry, Department of Inorganic
Chemistry, Chemnitz University of Technology, Straße
der Nationen 62, 09111 Chemnitz, Germany
| | - Sabrina Krauße
- Faculty of Science, Institute of
Chemistry, Department of Inorganic
Chemistry, Chemnitz University of Technology, Straße
der Nationen 62, 09111 Chemnitz, Germany
| | - Dieter Schaarschmidt
- Faculty of Science, Institute of
Chemistry, Department of Inorganic
Chemistry, Chemnitz University of Technology, Straße
der Nationen 62, 09111 Chemnitz, Germany
| | - Tobias Rüffer
- Faculty of Science, Institute of
Chemistry, Department of Inorganic
Chemistry, Chemnitz University of Technology, Straße
der Nationen 62, 09111 Chemnitz, Germany
| | - Heinrich Lang
- Faculty of Science, Institute of
Chemistry, Department of Inorganic
Chemistry, Chemnitz University of Technology, Straße
der Nationen 62, 09111 Chemnitz, Germany
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Wang L, Dehe D, Philippi T, Seifert A, Ernst S, Zhou Z, Hartmann M, Taylor RNK, Singh AP, Jia M, Thiel WR. Electrostatic grafting of a triphenylphosphine sulfonate on SBA-15: application in palladium catalyzed hydrogenation. Catal Sci Technol 2012. [DOI: 10.1039/c2cy00535b] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Blom E, Karimi F, Långström B. Use of perfluoro groups in nucleophilic 18F-fluorination. J Labelled Comp Radiopharm 2009. [DOI: 10.1002/jlcr.1695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Lloret J, Estevan F, Bieger K, Villanueva C, Úbeda MA. Immobilized Chiral ortho-Metalated Dirhodium(II) Compounds as Catalysts in the Asymmetric Cyclopropanation of Styrene with Ethyl Diazoacetate. Organometallics 2007. [DOI: 10.1021/om061086t] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Julio Lloret
- Departamento de Química Inorgánica, Facultad de Química, Universitat de Valencia, Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
| | - Francisco Estevan
- Departamento de Química Inorgánica, Facultad de Química, Universitat de Valencia, Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
| | - Klaus Bieger
- Departamento de Química Inorgánica, Facultad de Química, Universitat de Valencia, Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
| | - Cristina Villanueva
- Departamento de Química Inorgánica, Facultad de Química, Universitat de Valencia, Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
| | - M Angeles Úbeda
- Departamento de Química Inorgánica, Facultad de Química, Universitat de Valencia, Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
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Estevan F, Lloret J, Sanaú M, Úbeda MA. Enantio- and Diastereocontrol in Intermolecular Cyclopropanation Reaction of Styrene Catalyzed by Dirhodium(II) Complexes with Bulky ortho-Metalated Aryl Phosphines: Catalysis in Water as Solvent. Study of a (+)-Nonlinear Effect. Organometallics 2006. [DOI: 10.1021/om060484t] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Francisco Estevan
- Departamento de Química Inorgánica, Facultad de Química, Universitat de Valencia, Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
| | - Julio Lloret
- Departamento de Química Inorgánica, Facultad de Química, Universitat de Valencia, Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
| | - Mercedes Sanaú
- Departamento de Química Inorgánica, Facultad de Química, Universitat de Valencia, Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
| | - M Angeles Úbeda
- Departamento de Química Inorgánica, Facultad de Química, Universitat de Valencia, Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
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Adams DJ, Cole-Hamilton DJ, Hope EG, Pogorzelec PJ, Stuart AM. Hydroformylation in fluorous solvents. J Organomet Chem 2004. [DOI: 10.1016/j.jorganchem.2004.02.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Zhao F, Xu X, Khoo S, Hor T. Structure‐Dependent Electrochemical Behavior of Thienylplatinum(
II
) Complexes of N,N‐Heterocycles. Eur J Inorg Chem 2003. [DOI: 10.1002/ejic.200300320] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Feng Zhao
- Department of Chemistry, Faculty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore, Fax: (internat.) +65‐6779‐1691
| | - Xingling Xu
- Department of Chemistry, Faculty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore, Fax: (internat.) +65‐6779‐1691
| | - Soo Beng Khoo
- Department of Chemistry, Faculty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore, Fax: (internat.) +65‐6779‐1691
| | - T. S. Andy Hor
- Department of Chemistry, Faculty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore, Fax: (internat.) +65‐6779‐1691
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