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Vidovič C, Belaj F, Mösch‐Zanetti NC. Soft Scorpionate Hydridotris(2-mercapto-1-methylimidazolyl) borate) Tungsten-Oxido and -Sulfido Complexes as Acetylene Hydratase Models. Chemistry 2020; 26:12431-12444. [PMID: 32640122 PMCID: PMC7589279 DOI: 10.1002/chem.202001127] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 06/05/2020] [Indexed: 11/08/2022]
Abstract
A series of WIV alkyne complexes with the sulfur-rich ligand hydridotris(2-mercapto-1-methylimidazolyl) borate) (TmMe ) are presented as bio-inspired models to elucidate the mechanism of the tungstoenzyme acetylene hydratase (AH). The mono- and/or bis-alkyne precursors were reacted with NaTmMe and the resulting complexes [W(CO)(C2 R2 )(TmMe )Br] (R=H 1, Me 2) oxidized to the target [WE(C2 R2 )(TmMe )Br] (E=O, R=H 4, Me 5; E=S, R=H 6, Me 7) using pyridine-N-oxide and methylthiirane. Halide abstraction with TlOTf in MeCN gave the cationic complexes [WE(C2 R2 )(MeCN)(TmMe )](OTf) (E=CO, R=H 10, Me 11; E=O, R=H 12, Me 13; E=S, R=H 14, Me 15). Without MeCN, dinuclear complexes [W2 O(μ-O)(C2 Me2 )2 (TmMe )2 ](OTf)2 (8) and [W2 (μ-S)2 (C2 Me2 )(TmMe )2 ](OTf)2 (9) could be isolated showing distinct differences between the oxido and sulfido system with the latter exhibiting only one molecule of C2 Me2 . This provides evidence that a fine balance of the softness at W is important for acetylene coordination. Upon dissolving complex 8 in acetonitrile complex 13 is reconstituted in contrast to 9. All complexes exhibit the desired stability toward water and the observed effective coordination of the scorpionate ligand avoids decomposition to disulfide, an often-occurring reaction in sulfur ligand chemistry. Hence, the data presented here point toward a mechanism with a direct coordination of acetylene in the active site and provide the basis for further model chemistry for acetylene hydratase.
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Affiliation(s)
- Carina Vidovič
- University of GrazInstitute of ChemistryDepartment of Inorganic ChemistrySchuberstraße 18010GrazAustria
| | - Ferdinand Belaj
- University of GrazInstitute of ChemistryDepartment of Inorganic ChemistrySchuberstraße 18010GrazAustria
| | - Nadia C. Mösch‐Zanetti
- University of GrazInstitute of ChemistryDepartment of Inorganic ChemistrySchuberstraße 18010GrazAustria
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Villafañe F. Dynamic behavior in solution of seven-coordinated transition metal complexes. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.09.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Wingard LA, White PS, Templeton JL. Synthesis and oxidation of d6 tungsten pincer complexes: a complete series of tungsten(II) hydridocarbonyl and halocarbonyl pincer complexes. Dalton Trans 2012; 41:11438-48. [PMID: 22892656 DOI: 10.1039/c2dt30848g] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reaction of the neutral P(H)NP ligand [HN(SiMe(2)CH(2)PPh(2))(2)] with tungsten hexacarbonyl resulted in coordination of P(H)NP through both phosphorus donor atoms to form the tungsten complex [W(P(HN)P)(CO)(4)] (1). Reaction of P(H)NP with tris(acetonitrile)tricarbonyl tungsten gave both facial and meridional tridentate isomers [W(P(H)NP)(CO)(3)] (2-fac and 3-mer). These three d(6) tungsten complexes could be interconverted under appropriate conditions. The thermodynamically favored isomer 3 was protonated to form seven-coordinate [W(P(H)NP)(CO)(3)H][BF(4)] (4). A related series of cationic tungsten(II) halide complexes was synthesized, [W(P(H)NP)(CO)(3)X](+) (6, X = I; 7, X = Br; 8, X = Cl; 9, X = F), by various routes. All of the tungsten(II) complexes underwent deprotonation at the amine site of the P(H)NP ligand when triethylamine was added, resulting in neutral seven-coordinate complexes. Variable temperature (1)H, (31)P{(1)H}, and (13)C{(1)H} NMR spectroscopy showed fluxional behavior for all the seven-coordinate complexes reported here. Analysis of IR and NMR spectroscopic data showed trends through the series of coordinated halides. Crystal structures of tetracarbonyl 1, meridional tricarbonyl 3, and cationic hydride 4 were determined to confirm the coordination mode of the P(H)NP ligand.
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Affiliation(s)
- Leah A Wingard
- W. R. Kenan Laboratory, Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599-3290, USA
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Baker PK, Veale PL. Mono and Bimetallic Complexes of Molybdenum(ii) and Tungsten(ii) Containing 4,4′-Diphenylenecarbonitrile. J COORD CHEM 2010. [DOI: 10.1080/0095897031000092377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Paul K. Baker
- a Department of Chemistry , University of Wales , Bangor, Gwynedd, LL57 2UW, UK
| | - Patrick L. Veale
- a Department of Chemistry , University of Wales , Bangor, Gwynedd, LL57 2UW, UK
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Falcomer VA, Lemos SS, Politi JR, Casagrande GA, Lang ES, Burrow RA. Synthesis, structure and properties of the mixed-ligand tungsten(II) complex [WBr2(CO)3(tmpymt)] (tmpymt = 1,4,6-trimethylpyrimidine-2-thione). INORG CHEM COMMUN 2009. [DOI: 10.1016/j.inoche.2009.04.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Handzlik J, Stosur M, Kochel A, Szymańska-Buzar T. Norbornadiene complexes of molybdenum(II) and their transformation to a catalyst for ring-opening metathesis polymerization: DFT calculations – X-ray crystal structure of a new norbornadiene complex [MoCl(GeCl3)(CO)3(η4-nbd)]. Inorganica Chim Acta 2008. [DOI: 10.1016/j.ica.2007.05.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Vasconcellos-Dias M, Nunes CD, Vaz PD, Ferreira P, Calhorda MJ. Pyridine Carboxylate Complexes of MoII as Active Catalysts in Homogeneous and Heterogeneous Polymerization. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200700091] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Gimenez J, Nunes CD, Vaz PD, Valente AA, Ferreira P, Calhorda MJ. Hepta-coordinate halocarbonyl molybdenum(II) and tungsten(II) complexes as heterogeneous polymerization catalysts. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.molcata.2006.04.023] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Szymańska-Buzar T. Structure and reactivity of tungsten(II) and molybdenum(II) compounds containing an MM′ bond. Coord Chem Rev 2005. [DOI: 10.1016/j.ccr.2005.02.023] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Sommer R, Lönnecke P, Reinhold J, Baker PK, Hey-Hawkins E. Primary and Secondary Ferrocenylphosphine Complexes of Molybdenum(II) and Tungsten(II), [MI2(CO)3-n(PH2R)2+n] [M = Mo, W; R = Fc, FcCH2; Fc = Fe(η5-C5H5)(η5-C5H4); n = 0, 1], [MI2(CO)3{PH(CH2Fc)2}2], and [WI2(CO)3(NCMe){PH(CH2Fc)2}]: Preparation, Molecular Structure, Dynamic Behavior, Catalytic Properties, and Theoretical Calculations. Organometallics 2005. [DOI: 10.1021/om0501982] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- René Sommer
- Institut für Anorganische Chemie der Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany, Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie der Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany, and Department of Chemistry, University of Wales, Bangor, Gwynedd LL57 2UW, Wales, U.K
| | - Peter Lönnecke
- Institut für Anorganische Chemie der Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany, Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie der Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany, and Department of Chemistry, University of Wales, Bangor, Gwynedd LL57 2UW, Wales, U.K
| | - Joachim Reinhold
- Institut für Anorganische Chemie der Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany, Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie der Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany, and Department of Chemistry, University of Wales, Bangor, Gwynedd LL57 2UW, Wales, U.K
| | - Paul K. Baker
- Institut für Anorganische Chemie der Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany, Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie der Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany, and Department of Chemistry, University of Wales, Bangor, Gwynedd LL57 2UW, Wales, U.K
| | - Evamarie Hey-Hawkins
- Institut für Anorganische Chemie der Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany, Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie der Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany, and Department of Chemistry, University of Wales, Bangor, Gwynedd LL57 2UW, Wales, U.K
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Górski M, Kochel A, Szymańska-Buzar T. Synthesis, Structure, and Unusual Reactivity of the First Norbornene Carbonyl Complexes of Tungsten. Organometallics 2004. [DOI: 10.1021/om0400043] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marcin Górski
- Faculty of Chemistry, University of Wrocław, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Andrzej Kochel
- Faculty of Chemistry, University of Wrocław, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Teresa Szymańska-Buzar
- Faculty of Chemistry, University of Wrocław, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland
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Baker PK, Drew MG, Moore DS. Synthesis and reactions of the cationic seven-coordinate complexes, [MoI(CO)3(NCR){Ph2P(CH2)nPPh2}][BF4] (R=Me, n=1, 2 and 3; R=Et, n=1). Crystal structures of [MoI2(CO)2(PPh3){Ph2P(CH2)PPh2}], [MoI(CO)2{Ph2P(CH2)PPh2}2][BF4]·CH2Cl2, [MoCl3O{Ph2PO(CH2)OPPh2}] and [Mo3(μ3-I)2{μ2-Ph2P(CH2)PPh2}3]I. J Organomet Chem 2002. [DOI: 10.1016/s0022-328x(02)01894-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Goodyear JW, Hemingway CW, Harrington RW, Wiseman MR, Brisdon BJ. The crystal structure of [Mo(NCS)(CO)2(η3-C3H5)(NCMe)2]·MeCN and the reactions of {Mo(CO)2(η3-C3H5)+} containing species with symmetric alkynes. J Organomet Chem 2002. [DOI: 10.1016/s0022-328x(02)01981-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Czeluśniak I, Szymańska-Buzar T. Ring-opening metathesis polymerization of norbornene and norbornadiene by tungsten(II) and molybdenum(II) complexes. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s1381-1169(02)00226-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Szymańska-Buzar T, Głowiak T, Czeluśniak I. The oxidative addition of SnCl4 to [W(CO)4(NCMe)(PPh3)]. The X-ray crystal structure of [WH(CO)3(NCMe)(PPh3)2][SnCl5·MeOH]. Polyhedron 2002. [DOI: 10.1016/s0277-5387(02)01043-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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The initiation of ring-opening metathesis polymerisation of norbornadiene by seven-coordinate molybdenum(II) compounds. X-ray crystal structure of [Mo(μ-Cl)(SnCl3)(CO)3(η4-NBD)]. J Organomet Chem 2001. [DOI: 10.1016/s0022-328x(01)01157-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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18
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Synthesis, characterization and catalytic activity of the water-soluble tungsten complex [W(CO) 3 (MeCN)(TPPMS) 2 ], TPPMS=(C 6 H 5 ) 2 P( m -C 6 H 4 SO 3 Na)·2H 2 O: the unprecedented transformation of the complex into a hybrid (homogeneous/heterogeneous) catalyst precursor during two-phase catalytic hydrogenation upon changes in reaction conditions. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s1381-1169(01)00168-6] [Citation(s) in RCA: 17] [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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Al-Jahdali M, Baker PK. Synthesis and reactions of the dichloro bis(3-hexyne) complex [WCl2(CO)(NCMe)(η2-EtC2Et)2]. J Organomet Chem 2001. [DOI: 10.1016/s0022-328x(01)00763-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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