1
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Ćorović MZ, Belaj F, Mösch-Zanetti NC. Dioxygen Activation by a Bioinspired Tungsten(IV) Complex. Inorg Chem 2023; 62:5669-5676. [PMID: 36989414 PMCID: PMC10091480 DOI: 10.1021/acs.inorgchem.3c00228] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
An increasing number of discovered tungstoenzymes raises interest in the biomimetic chemistry of tungsten complexes in oxidation states +IV, +V, and +VI. Bioinspired (sulfur-rich) tungsten(VI) dioxido complexes are relatively prevalent in literature. Still, their energetically demanding reduction directly correlates with a small number of known tungsten(IV) oxido complexes, whose chemistry is not well explored. In this paper, a reduction of the [WO2(6-MePyS)2] (6-MePyS = 6-methylpyridine-2-thiolate) complex with PMe3 to a phosphine-stabilized tungsten(IV) oxido complex [WO(6-MePyS)2(PMe3)2] is described. This tungsten(IV) complex partially releases one PMe3 ligand in solution, creating a vacant coordination site capable of activating dioxygen to form [WO2(6-MePyS)2] and OPMe3. Therefore, [WO2(6-MePyS)2] can be used as a catalyst for the aerobic oxidation of PMe3, rendering this complex a rare example of a tungsten system utilizing dioxygen in homogeneous catalysis. Additionally, the investigation of the reactivity of the tungsten(IV) oxido complex with acetylene, substrate of a tungstoenzyme acetylene hydratase (AH), revealed the formation of the tungsten(IV) acetylene adduct. Although this adduct was previously reported as an oxidation product of the tungsten(II) acetylene carbonyl complex, here it is obtained via substitution at the sulfur-rich tungsten(IV) center, mimicking the initial step of the first shell mechanism for AH as suggested by computational studies.
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Affiliation(s)
- Miljan Z Ćorović
- Institute of Chemistry, Inorganic Chemistry, University of Graz, 8010 Graz, Austria
| | - Ferdinand Belaj
- Institute of Chemistry, Inorganic Chemistry, University of Graz, 8010 Graz, Austria
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2
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N-alkyl-β-ketoiminate zinc complexes: Synthesis, structure, and reactivity in ring-opening polymerization of lactide. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2022.121253] [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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3
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Henry Martínez Q, Valezi DF, Di Mauro E, Páez-Mozo EA, Fernando Martínez O. Characterization of peroxo-Mo and superoxo-Mo intermediate adducts in Photo-Oxygen Atom Transfer with O2. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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4
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Photo-epoxidation of (α, β)-pinene with molecular O2 catalyzed by a dioxo-molybdenum (VI)-based Metal–Organic Framework. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04518-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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5
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Hossain MK, Plutenko MO, Schachner JA, Haukka M, Mösch-Zanetti NC, Fritsky IO, Nordlander E. Dioxomolybdenum(VI) complexes of hydrazone phenolate ligands - syntheses and activities in catalytic oxidation reactions. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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6
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Ehweiner MA, Wiedemaier F, Belaj F, Mösch-Zanetti NC. Oxygen Atom Transfer Reactivity of Molybdenum(VI) Complexes Employing Pyrimidine- and Pyridine-2-thiolate Ligands. Inorg Chem 2020; 59:14577-14593. [PMID: 32951421 DOI: 10.1021/acs.inorgchem.0c02412] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Four dioxidomolybdenum(VI) complexes of the general structure [MoO2L2] employing the S,N-bidentate ligands pyrimidine-2-thiolate (PymS, 1), pyridine-2-thiolate (PyS, 2), 4-methylpyridine-2-thiolate (4-MePyS, 3) and 6-methylpyridine-2-thiolate (6-MePyS, 4) were synthesized and characterized by spectroscopic means and single-crystal X-ray diffraction analysis (2-4). Complexes 1-4 were reacted with PPh3 and PMe3, respectively, to investigate their oxygen atom transfer (OAT) reactivity and catalytic applicability. Reduction with PPh3 leads to symmetric molybdenum(V) dimers of the general structure [Mo2O3L4] (6-9). Kinetic studies showed that the OAT from [MoO2L2] to PPh3 is 5 times faster for the PymS system than for the PyS and 4-MePyS systems. The reaction of complexes 1-3 with PMe3 gives stable molybdenum(IV) complexes of the structure [MoOL2(PMe3)2] (10-12), while reduction of [MoO2(6-MePyS)2] (4) yields [MoO(6-MePyS)2(PMe3)] (13) with only one PMe3 coordinated to the metal center. The activity of complexes 1-4 in catalytic OAT reactions involving Me2SO and Ph2SO as oxygen donors and PPh3 as an oxygen acceptor has been investigated to assess the influence of the varied ligand frameworks on the OAT reaction rates. It was found that [MoO2(PymS)2] (1) and [MoO2(6-MePyS)2] (4) are similarly efficient catalysts, while complexes 2 and 3 are only moderately active. In the catalytic oxidation of PMe3 with Me2SO, complex 4 is the only efficient catalyst. Complexes 1-4 were also found to catalytically reduce NO3- with PPh3, although their reactivity is inhibited by further reduced species such as NO, as exemplified by the formation of the nitrosyl complex [Mo(NO)(PymS)3] (14), which was identified by single-crystal X-ray diffraction analysis. Computed ΔG⧧ values for the very first step of the OAT were found to be lower for complexes 1 and 4 than for 2 and 3, explaining the difference in catalytic reactivity between the two pairs and revealing the requirement for an electron-deficient ligand system.
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Affiliation(s)
- Madeleine A Ehweiner
- Institute of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse 1, 8010 Graz, Austria
| | - Fabian Wiedemaier
- Institute of Chemistry, Physical and Theoretical Chemistry, University of Graz, Heinrichstrasse 28, 8010 Graz, Austria
| | - Ferdinand Belaj
- Institute of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse 1, 8010 Graz, Austria
| | - Nadia C Mösch-Zanetti
- Institute of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse 1, 8010 Graz, Austria
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7
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Gauld RM, McLellan R, Kennedy AR, Barker J, Reid J, Mulvey RE. Backbone Reactivity of Lithium β-Diketiminate (NacNac) Complexes with CO 2 , tBuNCO and iPrNCO. Chemistry 2019; 25:14728-14734. [PMID: 31574177 DOI: 10.1002/chem.201904013] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 09/27/2019] [Indexed: 01/07/2023]
Abstract
Though alkali metal NacNac (β-diketiminate) complexes have been utilised in synthesis as NacNac-transfer agents, studies of them in their own right with small molecules are exceptionally rare. Here, the lithium compound of the common 2,6-diisopropylphenyl-β-methyldiketiminate [NacNac(Dipp, Me)] ligand is investigated with carbon dioxide and isocyanates. In all four cases reaction occurs at the backbone γ-C atom of the NacNac ligand, which redistributes electronically into a diimine. Insertion of CO2 gives an eight-atom carboxylate (Li2 O4 C2 ) ring at the γ-C site in a dimer. Insertion of tBuNCO gives a secondary amide at the γ-C site in a monomer with TMEDA chelating lithium. Double insertion of tBuNCO and (adventitious) oxygen gives a dimer with a (LiO)2 central core involving the latter source. Insertion of less bulky (iPrNCO) gives a dimer with dimerisation through the C=O bonds of the emergent secondary amide function.
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Affiliation(s)
- Richard M Gauld
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, G1 1XL, UK
| | - Ross McLellan
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, G1 1XL, UK
| | - Alan R Kennedy
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, G1 1XL, UK
| | - Jim Barker
- Innospec Ltd, Innospec Manufacturing Park, Oil Sites Road, Ellesmere Port, Cheshire, CH65 4EY, UK
| | - Jacqueline Reid
- Innospec Ltd, Innospec Manufacturing Park, Oil Sites Road, Ellesmere Port, Cheshire, CH65 4EY, UK
| | - Robert E Mulvey
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, G1 1XL, UK
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8
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Zwettler N, Ehweiner MA, Schachner JA, Dupé A, Belaj F, Mösch-Zanetti NC. Dioxygen Activation with Molybdenum Complexes Bearing Amide-Functionalized Iminophenolate Ligands. Molecules 2019; 24:molecules24091814. [PMID: 31083419 PMCID: PMC6539658 DOI: 10.3390/molecules24091814] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 05/07/2019] [Accepted: 05/09/2019] [Indexed: 01/18/2023] Open
Abstract
Two novel iminophenolate ligands with amidopropyl side chains (HL2 and HL3) on the imine functionality have been synthesized in order to prepare dioxidomolybdenum(VI) complexes of the general structure [MoO2L2] featuring pendant internal hydrogen bond donors. For reasons of comparison, a previously published complex featuring n-butyl side chains (L1) was included in the investigation. Three complexes (1–3) obtained using these ligands (HL1–HL3) were able to activate dioxygen in an in situ approach: The intermediate molybdenum(IV) species [MoO(PMe3)L2] is first generated by treatment with an excess of PMe3. Subsequent reaction with dioxygen leads to oxido peroxido complexes of the structure [MoO(O2)L2]. For the complex employing the ligand with the n-butyl side chain, the isolation of the oxidomolybdenum(IV) phosphino complex [MoO(PMe3)(L1)2] (4) was successful, whereas the respective Mo(IV) species employing the ligands with the amidopropyl side chains were found to be not stable enough to be isolated. The three oxido peroxido complexes of the structure [MoO(O2)L2] (9–11) were systematically compared to assess the influence of internal hydrogen bonds on the geometry as well as the catalytic activity in aerobic oxidation. All complexes were characterized by spectroscopic means. Furthermore, molecular structures were determined by single-crystal X-ray diffraction analyses of HL3, 1–3, 9–11 together with three polynuclear products {[MoO(L2)2]2(µ-O)} (7), {[MoO(L2)]4(µ-O)6} (8) and [C9H13N2O]4[Mo8O26]·6OPMe3 (12) which were obtained during the synthesis of reduced complexes of the type [MoO(PMe3)L2] (4–6).
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Affiliation(s)
- Niklas Zwettler
- Institute of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse 1, 8010 Graz, Austria.
| | - Madeleine A Ehweiner
- Institute of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse 1, 8010 Graz, Austria.
| | - Jörg A Schachner
- Institute of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse 1, 8010 Graz, Austria.
| | - Antoine Dupé
- Institute of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse 1, 8010 Graz, Austria.
| | - Ferdinand Belaj
- Institute of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse 1, 8010 Graz, Austria.
| | - Nadia C Mösch-Zanetti
- Institute of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse 1, 8010 Graz, Austria.
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9
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Zwettler N, Mösch-Zanetti NC. Interaction of Metal Oxido Compounds with B(C 6 F 5 ) 3. Chemistry 2019; 25:6064-6076. [PMID: 30707470 DOI: 10.1002/chem.201805148] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Indexed: 11/07/2022]
Abstract
Lewis acid-base pair chemistry has been placed on a new level with the discovery that adduct formation between an electron donor (Lewis base) and acceptor (Lewis acid) can be inhibited by the introduction of steric demand, thus preserving the reactivity of both Lewis centers, resulting in highly unusual chemistry. Some of these highly versatile frustrated Lewis pairs (FLP) are capable of splitting a variety of small molecules, such as dihydrogen, in a heterolytic and even catalytic manner. This is in sharp contrast to classical reactions where the inert substrate must be activated by a metal-based catalyst. Very recently, research has emerged combining the two concepts, namely the formation of FLPs in which a metal compound represents the Lewis base, allowing for novel chemistry by using the heterolytic splitting power of both together with the redox reactivity of the metal. Such reactivity is not restricted to the metal center itself being a Lewis acid or base, also ancillary ligands can be used as part of the Lewis pair, still with the benefit of the redox-active metal center nearby. This Minireview is designed to highlight the novel reactions arising from the combination of metal oxido transition-metal or rare-earth-metal compounds with the Lewis acid B(C6 F5 )3 . It covers a wide area of chemistry including small molecule activation, hydrogenation and hydrosilylation catalysis, and olefin metathesis, substantiating the broad influence of the novel concept. Future goals of this young and exciting area are briefly discussed.
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Affiliation(s)
- Niklas Zwettler
- Institute of Chemistry/Inorganic Chemistry, University of Graz, Schubertstrasse 1, 8010, Graz, Austria
| | - Nadia C Mösch-Zanetti
- Institute of Chemistry/Inorganic Chemistry, University of Graz, Schubertstrasse 1, 8010, Graz, Austria
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10
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El-Kadri OM, Siddique AA, Eaton MD, Nath NK. Synthesis and characterization of two dioxidomolybdenum(VI) complexes bearing amidinato and pyrazolato ligands and their use in thin film growth and oxygen atom transfer reactions. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.03.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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11
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Haghdoost MM, Zwettler N, Golbaghi G, Belaj F, Bagherzadeh M, Schachner JA, Mösch‐Zanetti NC. Diastereoselective Synthesis and Catalytic Activity of Two Chiral
cis
‐Dioxidomolybdenum(VI) Complexes. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800285] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | - Niklas Zwettler
- Institute of Chemistry University of Graz Schubertstr. 1 8010 Graz Austria
| | - Golara Golbaghi
- Chemistry Department Sharif University of Technology P.O. Box 11155 3615 Tehran Iran
| | - Ferdinand Belaj
- Institute of Chemistry University of Graz Schubertstr. 1 8010 Graz Austria
| | - Mojtaba Bagherzadeh
- Chemistry Department Sharif University of Technology P.O. Box 11155 3615 Tehran Iran
| | - Jörg A. Schachner
- Institute of Chemistry University of Graz Schubertstr. 1 8010 Graz Austria
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12
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Zwettler N, Walg SP, Belaj F, Mösch‐Zanetti NC. Heterolytic Si-H Bond Cleavage at a Molybdenum-Oxido-Based Lewis Pair. Chemistry 2018; 24:7149-7160. [PMID: 29521459 PMCID: PMC6001527 DOI: 10.1002/chem.201800226] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Indexed: 12/15/2022]
Abstract
The reaction of a molybdenum(VI) oxido imido complex with the strong Lewis acid B(C6 F5 )3 gave access to the Lewis adduct [Mo{OB(C6 F5 )3 }(NtBu)L2 ] featuring reversible B-O bonding in solution. The resulting frustrated Lewis pair (FLP)-like reactivity is reflected by the compound's ability to heterolytically cleave Si-H bonds, leading to a clean formation of the novel cationic MoVI species 3 a (R=Et) and 3 b (R=Ph) of the general formula [Mo(OSiR3 )(NtBu)L2 ][HB(C6 F5 )3 ]. These compounds possess properties highly unusual for molybdenum d0 species such as an intensive, charge-transfer-based color as well as a reversible redox couple at very low potentials, both dependent on the silane used. Single-crystal X-ray diffraction analyses of 2 and 4 b, a derivative of 3 b featuring the [FB(C6 F5 )3 ]- anion, picture the stepwise elongation of the Mo=O bond, leading to a large increase in the electrophilicity of the metal center. The reaction of 3 a and 3 b with benzaldehyde allowed for the regeneration of compound 2 by hydrosilylation of the benzaldehyde. NMR spectroscopy suggested an unusual mechanism for the transformation, involving a substrate insertion in the B-H bond of the borohydride anion.
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Affiliation(s)
- Niklas Zwettler
- Institute of Chemistry, Inorganic ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
| | - Simon P. Walg
- Institute of Chemistry, Inorganic ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
| | - Ferdinand Belaj
- Institute of Chemistry, Inorganic ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
| | - Nadia C. Mösch‐Zanetti
- Institute of Chemistry, Inorganic ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
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13
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de Aguiar SRMM, Öztopcu Ö, Troiani A, de Petris G, Weil M, Stöger B, Pittenauer E, Allmaier G, Veiros LF, Kirchner K. Formation of Mono Oxo Molybdenum(IV) PNP Pincer Complexes: Interplay between Water and Molecular Oxygen. Eur J Inorg Chem 2018; 2018:876-884. [PMID: 31057330 PMCID: PMC6485545 DOI: 10.1002/ejic.201701413] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Indexed: 11/11/2022]
Abstract
The synthesis of cationic mono oxo MoIV PNP pincer complexes of the type [Mo(PNPMe-iPr)(O)X]+ (X = I, Br) from [Mo(PNPMe-iPr)(CO)X2] is described. These compounds are coordinatively unsaturated and feature a strong Mo≡O triple bond. The formation of these complexes proceeds via cationic 14e intermediates [Mo(PNPMe-iPr)(CO)X]+ and requires both molecular oxygen and water. ESI MS measurements with 18O labeled water (H2 18O) and molecular oxygen (18O2) indicates that water plays a crucial role in the formation of the Mo≡O bond. A plausible mechanism based on DFT calculations is provided. The X-ray structure of [Mo(PNPMe-iPr)(O)I]SbF6 is presented.
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Affiliation(s)
- Sara R. M. M. de Aguiar
- Institute of Applied Synthetic ChemistryVienna University of TechnologyGetreidemarkt 91060ViennaAustria
| | - Özgür Öztopcu
- Institute of Applied Synthetic ChemistryVienna University of TechnologyGetreidemarkt 91060ViennaAustria
| | - Anna Troiani
- Dipartimento di Chimica e Tecnologie del FarmacoUniversità di Roma “La Sapienza”P. le Aldo Moro 500185RomaItaly
| | - Giulia de Petris
- Dipartimento di Chimica e Tecnologie del FarmacoUniversità di Roma “La Sapienza”P. le Aldo Moro 500185RomaItaly
| | - Matthias Weil
- Institute of Chemical Technologies and AnalyticsVienna University of TechnologyGetreidemarkt 91060ViennaAustria
| | - Berthold Stöger
- X‐ray CenterVienna University of TechnologyGetreidemarkt 91060ViennaAustria
| | - Ernst Pittenauer
- Institute of Chemical Technologies and AnalyticsVienna University of TechnologyGetreidemarkt 91060ViennaAustria
| | - Günter Allmaier
- Institute of Chemical Technologies and AnalyticsVienna University of TechnologyGetreidemarkt 91060ViennaAustria
| | - Luis F. Veiros
- Centro de Química EstruturalInstituto Superior TécnicoUniversidade de LisboaAv. Rovisco Pais No. 11049‐001LisboaPortugal
| | - Karl Kirchner
- Institute of Applied Synthetic ChemistryVienna University of TechnologyGetreidemarkt 91060ViennaAustria
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14
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Zwettler N, Schachner JA, Belaj F, Mösch-Zanetti NC. Hydrogen bond donor functionalized dioxido-molybdenum(VI) complexes as robust and highly efficient precatalysts for alkene epoxidation. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.09.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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15
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Zwettler N, Grover N, Belaj F, Kirchner K, Mösch-Zanetti NC. Activation of Molecular Oxygen by a Molybdenum(IV) Imido Compound. Inorg Chem 2017; 56:10147-10150. [PMID: 28812883 DOI: 10.1021/acs.inorgchem.7b01768] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Activation of molecular dioxygen at a molybdenum(IV) imido compound led to the isolation and full characterization of a remarkably stable transition-metal imidoperoxido complex.
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Affiliation(s)
- Niklas Zwettler
- Institute of Chemistry, Inorganic Chemistry, University of Graz , Schubertstrasse 1, 8010 Graz, Austria
| | - Nidhi Grover
- Institute of Chemistry, Inorganic Chemistry, University of Graz , Schubertstrasse 1, 8010 Graz, Austria
| | - Ferdinand Belaj
- Institute of Chemistry, Inorganic Chemistry, University of Graz , Schubertstrasse 1, 8010 Graz, Austria
| | - Karl Kirchner
- Institute of Applied Synthetic Chemistry, Vienna University of Technology , Getreidemarkt 9, 1060 Vienna, Austria
| | - Nadia C Mösch-Zanetti
- Institute of Chemistry, Inorganic Chemistry, University of Graz , Schubertstrasse 1, 8010 Graz, Austria
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16
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Ghosh AC, Samuel PP, Schulzke C. Synthesis, characterization and oxygen atom transfer reactivity of a pair of Mo(iv)O- and Mo(vi)O2-enedithiolate complexes – a look at both ends of the catalytic transformation. Dalton Trans 2017; 46:7523-7533. [DOI: 10.1039/c7dt01470h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel pair of mono-oxo and di-oxo bis-dithiolene molybdenum complexes were synthesized, characterized and catalytically investigated as models for a molybdenum dependent oxidoreductase.
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Affiliation(s)
- Ashta C. Ghosh
- Institute of Condensed Matter and Nanosciences
- Molecules
- Solids and Reactivity (IMCN/MOST)
- Université catholique de Louvain
- 1348 Louvain-la-Neuve
| | - Prinson P. Samuel
- Universität Göttingen
- Institut für Anorganische Chemie
- 37077 Göttingen
- Germany
| | - Carola Schulzke
- Institut für Biochemie
- Ernst-Moritz-Arndt-Universitat Greifswald
- 17487 Greifswald
- Germany
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17
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Villanueva-Sánchez LF, García-Álvarez AC, Campirán-Martínez A, Jancik V, Martínez-Otero D, Alvarado-Rodríguez JG, Moya-Cabrera M. Molybdenum(VI) complexes supported by chalcogen-based 1,2,3-triazoles. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.08.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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18
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Zwettler N, Judmaier ME, Strohmeier L, Belaj F, Mösch-Zanetti NC. Oxygen activation and catalytic aerobic oxidation by Mo(iv)/(vi) complexes with functionalized iminophenolate ligands. Dalton Trans 2016; 45:14549-60. [PMID: 27389482 DOI: 10.1039/c6dt01692h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Synthesis of molybdenum(vi) dioxido complexes 1-3, coordinated by one or two functionalized iminophenolate ligands HL1 or HL2, bearing a donor atom side chain or a phenyl substituent, respectively, allowed for systematic investigation of the oxygen atom transfer (OAT) reactivity of such complexes towards phosphanes. Depending on stoichiometry and employed phosphane (PMe3 or PPh3), different molybdenum(iv) and molybdenum(v) complexes 4-7 were obtained. Whereas molybdenum(iv) complexes 4 and 5, bearing a terminal PMe3 ligand, readily reacted with molecular O2 to form oxido peroxido complexes 8 and 9, phosphane free μ-oxido bridged dinuclear molybdenum(v) complexes 6 and 7 proved to be stable towards oxidation with molecular O2 under ambient conditions. Single-crystal X-ray diffraction analyses revealed different isomeric structures in the solid state for dioxido complexes 1 and 2 in comparison with oxido phosphane complex 5, dinuclear oxido μ-oxido complex 6 and oxido peroxido complexes 8 and 9, pointing towards an isomeric rearrangement during OAT. Compounds 1 and 2 were furthermore tested for their ability to catalyze the aerobic oxidation of PMe3 and PPh3. A significant difference in catalytic activity has been observed in the oxidation of PMe3, where complex 1 bearing donor atom functionalized ligands led to higher conversion and selectivity than complex 2 coordinated by phenyl iminophenolate ligands. In the oxidation of PPh3, complex 2 leads to higher conversion compared to 1. In a control experiment, phenyl-based dinuclear μ-oxido complex 7, derived from complex 2, was found to be catalytically active, which suggests a lower energy barrier for disproportionation into [MoO(L)2] and [MoO2(L)2] in comparison with methoxypropylene based compound 6, a prerequisite for subsequent reactivity toward molecular O2.
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Affiliation(s)
- Niklas Zwettler
- Institute of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse 1, 8010 Graz, Austria.
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19
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Paul T, Rodehutskors PM, Schmidt J, Burzlaff N. Oxygen Atom Transfer Catalysis with Homogenous and Polymer-Supported N,N- and N,N,O-Heteroscorpionate Dioxidomolybdenum(VI) Complexes. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600026] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tobias Paul
- Inorganic Chemistry; Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM); University of Erlangen-Nürnberg; Egerlandstr. 1 91058 Erlangen Germany
| | - Philipp M. Rodehutskors
- Inorganic Chemistry; Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM); University of Erlangen-Nürnberg; Egerlandstr. 1 91058 Erlangen Germany
| | - Jochen Schmidt
- Inorganic Chemistry; Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM); University of Erlangen-Nürnberg; Egerlandstr. 1 91058 Erlangen Germany
| | - Nicolai Burzlaff
- Inorganic Chemistry; Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM); University of Erlangen-Nürnberg; Egerlandstr. 1 91058 Erlangen Germany
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20
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Mojarrad AG, Zakavi S. A novel porphyrinic photosensitizer based on the molecular complex of meso-tetraphenylporphyrin with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone: higher photocatalytic activity, photooxidative stability and solubility in non-chlorinated solvents. RSC Adv 2016. [DOI: 10.1039/c6ra21575k] [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] Open
Abstract
The 1 : 2 molecular complex ofmeso-tetraphenylporphyrin with 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ) has been used as a promising photosensitizer for the aerobic oxidation of olefins in different chlorinated and non-chlorinated solvents.
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Affiliation(s)
- Aida G. Mojarrad
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan 45137-66731
- Iran
| | - Saeed Zakavi
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan 45137-66731
- Iran
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21
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Dupé A, Judmaier ME, Belaj F, Zangger K, Mösch-Zanetti NC. Activation of molecular oxygen by a molybdenum complex for catalytic oxidation. Dalton Trans 2015; 44:20514-22. [PMID: 26548583 DOI: 10.1039/c5dt02931g] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A sterically demanding molybdenum(VI) dioxo complex was found to catalytically activate molecular oxygen and to transfer its oxygen atoms to phosphines. Intermediate peroxo as well as reduced mono-oxo complexes were isolated and fully characterized. Monomeric Mo(IV) monooxo species proved to be of an unusual nature with the coordinated phosphine trans to the oxo group. The reduced molybdenum centers can activate O2 to form a stable Mo(VI) oxo-peroxo complex unambiguously characterized by single crystal X-ray diffraction analysis. NMR experiments demonstrate that both oxygen atoms of the peroxo unit are transferred to an accepting substrate, generating the Mo(IV) intermediate and restarting the catalytic cycle.
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Affiliation(s)
- Antoine Dupé
- Institute of Chemistry, University of Graz, Schubertstrasse 1, 8010 Graz, Austria.
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22
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Heinze K. Bioinspired functional analogs of the active site of molybdenum enzymes: Intermediates and mechanisms. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2015.04.010] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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23
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Dioxidomolybdenum(VI) Complexes Containing Ligands with the Bipyrrolidine Backbone as Efficient Catalysts for Olefin Epoxidation. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300258] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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Cozzolino AF, Tofan D, Cummins CC, Temprado M, Palluccio TD, Rybak-Akimova EV, Majumdar S, Cai X, Captain B, Hoff CD. Two-Step Binding of O2 to a Vanadium(III) Trisanilide Complex To Form a Non-Vanadyl Vanadium(V) Peroxo Complex. J Am Chem Soc 2012; 134:18249-52. [DOI: 10.1021/ja309621h] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anthony F. Cozzolino
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States
| | - Daniel Tofan
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States
| | - Christopher C. Cummins
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States
| | - Manuel Temprado
- Department of Physical Chemistry, Universidad de Alcalá, Ctra. Madrid-Barcelona
Km. 33,600, Madrid 28871, Spain
| | - Taryn D. Palluccio
- Department of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts
02155, United States
| | - Elena V. Rybak-Akimova
- Department of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts
02155, United States
| | - Subhojit Majumdar
- Department
of Chemistry, University of Miami, 1301
Memorial Drive, Coral Gables,
Florida 33021, United States
| | - Xiaochen Cai
- Department
of Chemistry, University of Miami, 1301
Memorial Drive, Coral Gables,
Florida 33021, United States
| | - Burjor Captain
- Department
of Chemistry, University of Miami, 1301
Memorial Drive, Coral Gables,
Florida 33021, United States
| | - Carl D. Hoff
- Department
of Chemistry, University of Miami, 1301
Memorial Drive, Coral Gables,
Florida 33021, United States
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25
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Judmaier ME, Holzer C, Volpe M, Mösch-Zanetti NC. Molybdenum(VI) Dioxo Complexes Employing Schiff Base Ligands with an Intramolecular Donor for Highly Selective Olefin Epoxidation. Inorg Chem 2012; 51:9956-66. [DOI: 10.1021/ic301464w] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Martina E. Judmaier
- Institut
für Chemie, Karl-Franzens-Universität Graz, Stremayrgasse 16, 8010 Graz, Austria
| | - Christof Holzer
- Institut
für Chemie, Karl-Franzens-Universität Graz, Stremayrgasse 16, 8010 Graz, Austria
| | - Manuel Volpe
- Institut
für Chemie, Karl-Franzens-Universität Graz, Stremayrgasse 16, 8010 Graz, Austria
| | - Nadia C. Mösch-Zanetti
- Institut
für Chemie, Karl-Franzens-Universität Graz, Stremayrgasse 16, 8010 Graz, Austria
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26
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Arumuganathan T, Mayilmurugan R, Volpe M, Mösch-Zanetti NC. Faster oxygen atom transfer catalysis with a tungsten dioxo complex than with its molybdenum analog. Dalton Trans 2011; 40:7850-7. [DOI: 10.1039/c1dt10248f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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27
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Conte V, Floris B. Vanadium and molybdenum peroxides: synthesis and catalytic activity in oxidation reactions. Dalton Trans 2011; 40:1419-36. [DOI: 10.1039/c0dt00706d] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Mayilmurugan R, Harum BN, Volpe M, Sax AF, Palaniandavar M, Mösch‐Zanetti NC. Mechanistic Insight into the Reactivity of Oxotransferases by Novel Asymmetric Dioxomolybdenum(VI) Model Complexes. Chemistry 2010; 17:704-13. [DOI: 10.1002/chem.201001177] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2010] [Revised: 08/27/2010] [Indexed: 11/06/2022]
Affiliation(s)
- Ramasamy Mayilmurugan
- Institut für Chemie, Bereich Anorganische Chemie, Karl‐Franzens‐Universität Graz, Schubertstrasse 1, 8010, Graz (Austria), Fax: (+43) 316‐380‐9835
| | - Bastian N. Harum
- Institut für Chemie, Bereich Anorganische Chemie, Karl‐Franzens‐Universität Graz, Schubertstrasse 1, 8010, Graz (Austria), Fax: (+43) 316‐380‐9835
| | - Manuel Volpe
- Institut für Chemie, Bereich Anorganische Chemie, Karl‐Franzens‐Universität Graz, Schubertstrasse 1, 8010, Graz (Austria), Fax: (+43) 316‐380‐9835
| | - Alexander F. Sax
- Institut für Chemie, Bereich Physikalische und Theoretische Chemie, Karl‐Franzens‐Universität Graz, Heinrichstrasse 28/VI, 8010, Graz (Austria)
| | | | - Nadia C. Mösch‐Zanetti
- Institut für Chemie, Bereich Anorganische Chemie, Karl‐Franzens‐Universität Graz, Schubertstrasse 1, 8010, Graz (Austria), Fax: (+43) 316‐380‐9835
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29
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Mösch-Zanetti NC, Wurm D, Volpe M, Lyashenko G, Harum B, Belaj F, Baumgartner J. Replacement of an Oxo by an Imido Group in Oxotransferase Model Compounds: Influence on the Oxygen Atom Transfer. Inorg Chem 2010; 49:8914-21. [DOI: 10.1021/ic101159g] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nadia C. Mösch-Zanetti
- Institut für Chemie, Karl-Franzens-Universität Graz, Schubertstrasse, 1 A-8010 Graz, Austria
| | - Dietmar Wurm
- Institut für Chemie, Karl-Franzens-Universität Graz, Schubertstrasse, 1 A-8010 Graz, Austria
| | - Manuel Volpe
- Institut für Chemie, Karl-Franzens-Universität Graz, Schubertstrasse, 1 A-8010 Graz, Austria
| | - Ganna Lyashenko
- Institut für Chemie, Karl-Franzens-Universität Graz, Schubertstrasse, 1 A-8010 Graz, Austria
| | - Bastian Harum
- Institut für Chemie, Karl-Franzens-Universität Graz, Schubertstrasse, 1 A-8010 Graz, Austria
| | - Ferdinand Belaj
- Institut für Chemie, Karl-Franzens-Universität Graz, Schubertstrasse, 1 A-8010 Graz, Austria
| | - Judith Baumgartner
- Institut für Anorganische Chemie, Technische Universität Graz, Stremayrgasse, 8010 Graz, Austria
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30
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Basu P, Kail BW, Young CG. Influence of the oxygen atom acceptor on the reaction coordinate and mechanism of oxygen atom transfer from the dioxo-Mo(VI) complex, Tp(iPr)MoO(2)(OPh), to tertiary phosphines. Inorg Chem 2010; 49:4895-900. [PMID: 20433155 PMCID: PMC2897133 DOI: 10.1021/ic902500h] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The oxygen atom transfer reactivity of the dioxo-Mo(VI) complex, Tp(iPr)MoO(2)(OPh) (Tp(iPr) = hydrotris(3-isopropylpyrazol-1-yl)borate), with a range of tertiary phosphines (PMe(3), PMe(2)Ph, PEt(3), PBu(n)(3), PEt(2)Ph, PEtPh(2), and PMePh(2)) has been investigated. The first step in all the reactions follows a second-order rate law indicative of an associative transition state, consistent with nucleophilic attack by the phosphine on an oxo ligand, namely, Tp(iPr)MoO(2)(OPh) + PR(3) --> Tp(iPr)MoO(OPh)(OPR(3)). The calculated free energy of activation for the formation of the OPMe(3) intermediate (Chem. Eur. J. 2006, 12, 7501) is in excellent agreement with the experimental DeltaG() value reported here. The second step of the reaction, that is, the exchange of the coordinated phosphine oxide by acetonitrile, Tp(iPr)MoO(OPh)(OPR(3)) + MeCN --> Tp(iPr)MoO(OPh)(MeCN) + OPR(3), is first-order in starting complex in acetonitrile. The reaction occurs via a dissociative interchange (I(d)) or associative interchange (I(a)) mechanism, depending on the nature of the phosphine oxide. The activation parameters for the solvolysis of Tp(iPr)MoO(OPh)(OPMe(3)) (DeltaH(++) = 56.3 kJ mol(-1); DeltaS(++) = -125.9 J mol(-1) K(-1); DeltaG(++) = 93.8 kJ mol(-1)) and Tp(iPr)MoO(OPh)(OPEtPh(2)) (DeltaH(++) = 66.5 kJ mol(-1); DeltaS(++) = -67.6 J mol(-1) K(-1); DeltaG(++) = 86.7 kJ mol(-1)) by acetonitrile are indicative of I(a) mechanisms. In contrast, the corresponding parameters for the solvolysis reaction of Tp(iPr)MoO(OPh)(OPEt(3)) (DeltaH(++) = 95.8 kJ mol(-1); DeltaS(++) = 26.0 J mol(-1) K(-1); DeltaG(++) = 88.1 kJ mol(-1)) and the remaining complexes by the same solvent are indicative of an I(d) mechanism. The equilibrium constant for the solvolysis of the oxo-Mo(V) phosphoryl complex, [Tp(iPr)MoO(OPh)(OPMe(3))](+), by acetonitrile was calculated to be 1.9 x 10(-6). The oxo-Mo(V) phosphoryl complex is more stable than the acetonitrile analogue, whereas the oxo-Mo(IV) acetonitrile complex is more stable than the phosphoryl analogue. The higher stability of the Mo(V) phosphoryl complex may explain the phosphate inhibition of sulfite oxidase.
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Affiliation(s)
- Partha Basu
- Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, Pennsylvania 15282, USA.
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31
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Heinze K, Fischer A. Oxidomolybdenum(IV), -(V), -(VI) Complexes with Relevance to Molybdenum Enzymes: Oxygen Atom Transfer, Redox Chemistry and EPR Spectroscopy. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.200901035] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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32
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Bagherzadeh M, Latifi R, Tahsini L, Amani V, Ellern A, Keith Woo L. Synthesis, characterization and crystal structure of a dioxomolybdenum(VI) complex with a N,O type bidentate Schiff base ligand as a catalyst for homogeneous oxidation of olefins. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.05.036] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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33
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Basu P, Nemykin VN, Sengar RS. Substituent Effect on Oxygen Atom Transfer Reactivity from Oxomolybdenum Centers: Synthesis, Structure, Electrochemistry, and Mechanism. Inorg Chem 2009; 48:6303-13. [DOI: 10.1021/ic900579s] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Partha Basu
- Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, Pennsylvania 15282
| | - Victor N. Nemykin
- Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, Pennsylvania 15282
| | - Raghvendra S. Sengar
- Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, Pennsylvania 15282
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34
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Whiteoak CJ, Britovsek GJP, Gibson VC, White AJP. Electronic effects in oxo transfer reactions catalysed by salan molybdenum(vi) cis-dioxo complexes. Dalton Trans 2009:2337-44. [DOI: 10.1039/b820754b] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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35
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Lyashenko G, Saischek G, Judmaier ME, Volpe M, Baumgartner J, Belaj F, Jancik V, Herbst-Irmer R, Mösch-Zanetti NC. Oxo-molybdenum and oxo-tungsten complexes of Schiff bases relevant to molybdoenzymes. Dalton Trans 2009:5655-65. [DOI: 10.1039/b820629e] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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36
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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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37
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Experimental and theoretical study of a truly functional biomimetic molybdenum oxotransferase analogue system. J Inorg Biochem 2008; 102:1199-211. [DOI: 10.1016/j.jinorgbio.2008.01.029] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2007] [Revised: 01/17/2008] [Accepted: 01/18/2008] [Indexed: 11/19/2022]
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38
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Gilroy JB, Patrick BO, McDonald R, Hicks RG. Transition Metal Complexes of 3-Cyano- and 3-Nitroformazans. Inorg Chem 2008; 47:1287-94. [DOI: 10.1021/ic7019846] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Joe B. Gilroy
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, BC, Canada V8W 3V6, Crystallography Laboratory, Department of Chemistry, University of British Columbia, Vancouver, BC, Canada V6T 1Z3, and Crystallography Laboratory, Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr. NW, Edmonton, Alberta, Canada T6G 2G2
| | - Brian O. Patrick
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, BC, Canada V8W 3V6, Crystallography Laboratory, Department of Chemistry, University of British Columbia, Vancouver, BC, Canada V6T 1Z3, and Crystallography Laboratory, Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr. NW, Edmonton, Alberta, Canada T6G 2G2
| | - Robert McDonald
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, BC, Canada V8W 3V6, Crystallography Laboratory, Department of Chemistry, University of British Columbia, Vancouver, BC, Canada V6T 1Z3, and Crystallography Laboratory, Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr. NW, Edmonton, Alberta, Canada T6G 2G2
| | - Robin G. Hicks
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, BC, Canada V8W 3V6, Crystallography Laboratory, Department of Chemistry, University of British Columbia, Vancouver, BC, Canada V6T 1Z3, and Crystallography Laboratory, Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr. NW, Edmonton, Alberta, Canada T6G 2G2
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