1
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Fürpaß KM, Peschel LM, Schachner JA, Borisov SM, Krenn H, Belaj F, Mösch‐Zanetti NC. Vapochromism and Magnetochemical Switching of a Nickel(II) Paddlewheel Complex by Reversible NH 3 Uptake and Release. Angew Chem Int Ed Engl 2021; 60:13401-13404. [PMID: 33773004 PMCID: PMC8251872 DOI: 10.1002/anie.202102149] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Indexed: 12/30/2022]
Abstract
Reaction of [NiCl2 (PnH)4 ] (1) (PnH=6-tert-butyl-pyridazine-3-thione) with NiCl2 affords the binuclear paddlewheel (PW) complex [Ni2 (Pn)4 ] (2). Diamagnetic complex 2 is the first example of a PW complex capable of reversibly binding and releasing NH3 . The NH3 ligand in [Ni2 (Pn)4 (NH3 )] (2⋅NH3 ) enforces major spectroscopic and magnetic susceptibility changes, thus displaying vapochromic properties (λmax (2)=532 nm, λmax (2⋅NH3 )=518 nm) and magnetochemical switching (2: S=0; 2⋅NH3 : S=1). Upon repeated adsorption/desorption cycles of NH3 the PW core remains intact. Compound 2 can be embedded into thin polyurethane films (2P ) under retention of its sensing abilities. Therefore, 2 qualifies as reversible optical probe for ammonia. The magnetochemical switching of 2 and 2⋅NH3 was studied in detail by SQUID measurements showing that in 2⋅NH3 , solely the Ni atom coordinated the NH3 molecule is responsible for the paramagnetic behavior.
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Affiliation(s)
| | - Lydia M. Peschel
- Institute of ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
| | - Jörg A. Schachner
- Institute of ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
| | - Sergey M. Borisov
- Institute of Analytical Chemistry and Food ChemistryGraz University of TechnologyStremayrgasse 98010GrazAustria
| | - Heinz Krenn
- Institute of PhysicsUniversity of GrazUniversitätsplatz 58010GrazAustria
| | - Ferdinand Belaj
- Institute of ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
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2
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Fürpaß KM, Peschel LM, Schachner JA, Borisov SM, Krenn H, Belaj F, Mösch‐Zanetti NC. Vapochromism and Magnetochemical Switching of a Nickel(II) Paddlewheel Complex by Reversible NH
3
Uptake and Release. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Katharina M. Fürpaß
- Institute of Chemistry University of Graz Schubertstrasse 1 8010 Graz Austria
| | - Lydia M. Peschel
- Institute of Chemistry University of Graz Schubertstrasse 1 8010 Graz Austria
| | - Jörg A. Schachner
- Institute of Chemistry University of Graz Schubertstrasse 1 8010 Graz Austria
| | - Sergey M. Borisov
- Institute of Analytical Chemistry and Food Chemistry Graz University of Technology Stremayrgasse 9 8010 Graz Austria
| | - Heinz Krenn
- Institute of Physics University of Graz Universitätsplatz 5 8010 Graz Austria
| | - Ferdinand Belaj
- Institute of Chemistry University of Graz Schubertstrasse 1 8010 Graz Austria
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3
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Reeves MG, Wood PA, Parsons S. Automated oxidation-state assignment for metal sites in coordination complexes in the Cambridge Structural Database. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2019; 75:1096-1105. [PMID: 32830689 DOI: 10.1107/s2052520619013040] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 09/21/2019] [Indexed: 06/11/2023]
Abstract
The Cambridge Structural Database (CSD) currently contains over 400 000 transition-metal-containing entries, however many entries still lack curated oxidation-state assignments. Surveying and editing the remaining entries would be far too resource- and time-intensive to be carried out manually. Here, a highly reliable automated workflow for oxidation-state assignment in transition-metal coordination complexes via CSD Python API (application programming interface) scripts is presented. The strengths and limitations of the bond-valence sum (BVS) method are discussed and the use of complementary methods for improved assignment confidence is explored. In total, four complementary techniques have been implemented in this study. The resulting workflow overcomes the limitations of the BVS approach, widening the applicability of an automated procedure to more CSD entries. Assignments are successful for 99% of the cases where a high consensus between different methodologies is observed. Out of a total number of 54 999 unique metal atoms in a test dataset, the procedure yielded the correct oxidation state in 47 072 (86%) of cases.
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Affiliation(s)
- Matthew G Reeves
- Centre for Science at Extreme Conditions and EaStCHEM School of Chemistry, The University of Edinburgh, King's Buildings, West Mains Road, Edinburgh EH9 3FJ, UK
| | - Peter A Wood
- Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge CB2 1EZ, UK
| | - Simon Parsons
- Centre for Science at Extreme Conditions and EaStCHEM School of Chemistry, The University of Edinburgh, King's Buildings, West Mains Road, Edinburgh EH9 3FJ, UK
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4
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Vidovič C, Peschel LM, Buchsteiner M, Belaj F, Mösch‐Zanetti NC. Structural Mimics of Acetylene Hydratase: Tungsten Complexes Capable of Intramolecular Nucleophilic Attack on Acetylene. Chemistry 2019; 25:14267-14272. [PMID: 31603595 PMCID: PMC6899645 DOI: 10.1002/chem.201903264] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Indexed: 12/22/2022]
Abstract
Bioinspired complexes employing the ligands 6-tert-butylpyridazine-3-thione (SPn) and pyridine-2-thione (SPy) were synthesized and fully characterized to mimic the tungstoenzyme acetylene hydratase (AH). The complexes [W(CO)(C2 H2 )(CHCH-SPy)(SPy)] (4) and [W(CO)(C2 H2 )(CHCH-SPn)(SPn)] (5) were formed by intramolecular nucleophilic attack of the nitrogen donors of the ligand on the coordinated C2 H2 molecule. Labelling experiments using C2 D2 with the SPy system revealed the insertion reaction proceeding via a bis-acetylene intermediate. The starting complex [W(CO)(C2 H2 )(SPy)2 ] (6) for these studies was accessed by the new acetylene precursor mixture [W(CO)(C2 H2 )n (MeCN)3-n Br2 ] (n=1 and 2; 7). All complexes represent rare examples in the field of W-C2 H2 chemistry with 4 and 5 being the first of their kind. In the ongoing debate on the enzymatic mechanism, the findings support activation of acetylene by the tungsten center.
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Affiliation(s)
- Carina Vidovič
- Institute of Chemistry—Inorganic ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
| | - Lydia M. Peschel
- Institute of Chemistry—Inorganic ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
| | - Michael Buchsteiner
- 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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5
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Adding to the Family of Copper Complexes Featuring Borohydride Ligands Based on 2-Mercaptopyridyl Units. INORGANICS 2019. [DOI: 10.3390/inorganics7080093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Borohydride ligands featuring multiple pendant donor functionalities have been prevalent in the chemical literature for many decades now. More recent times has seen their development into new families of so-called soft scorpionates, for example, those featuring sulfur based donors. Despite all of these developments, those ligands containing just one pendant group are rare. This article explores one ligand family based on the 2-mercaptopyridine heterocycle. The coordination chemistry of the monosubstituted ligand, [H3B(mp)]− (mp = 2-mercaptopyridyl), has been explored. Reaction of Na[BH3(mp)] with one equivalent of Cu(I)Cl in the presence of either triphenylphosphine or tricyclohexylphosphine co-ligands leads to the formation of [Cu{H3B(mp)}(PR3)] (R = Ph, 1; Cy, 2), respectively. Structural characterization confirms a κ3-S,H,H coordination mode for the borohydride-based ligand within 1 and 2, involving a dihydroborate bridging interaction (BH2Cu) with the copper centers.
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6
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Maser L, Schneider C, Vondung L, Alig L, Langer R. Quantifying the Donor Strength of Ligand-Stabilized Main Group Fragments. J Am Chem Soc 2019; 141:7596-7604. [DOI: 10.1021/jacs.9b02598] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Leon Maser
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Str. 4, 35032 Marburg, Germany
| | - Christian Schneider
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Str. 4, 35032 Marburg, Germany
| | - Lisa Vondung
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Str. 4, 35032 Marburg, Germany
| | - Lukas Alig
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Str. 4, 35032 Marburg, Germany
| | - Robert Langer
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Str. 4, 35032 Marburg, Germany
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7
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Mono- and Hexanuclear Zinc Halide Complexes with Soft Thiopyridazine Based Scorpionate Ligands. INORGANICS 2019. [DOI: 10.3390/inorganics7020024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Scorpionate ligands with three soft sulfur donor sites have become very important in coordination chemistry. Despite its ability to form highly electrophilic species, electron-deficient thiopyridazines have rarely been used, whereas the chemistry of electron-rich thioheterocycles has been explored rather intensively. Here, the unusual chemical behavior of a thiopyridazine (6-tert-butylpyridazine-3-thione, HtBuPn) based scorpionate ligand towards zinc is reported. Thus, the reaction of zinc halides with tris(6-tert-butyl-3-thiopyridazinyl)borate Na[TntBu] leads to the formation of discrete torus-shaped hexameric zinc complexes [TntBuZnX]6 (X = Br, I) with uncommonly long zinc halide bonds. In contrast, reaction of the sterically more demanding ligand K[TnMe,tBu] leads to decomposition, forming Zn(HPnMe,tBu)2X2 (X = Br, I). The latter can be prepared independently by reaction of the respective zinc halides and two equiv of HPnMe,tBu. The bromide compound was used as precursor which further reacts with K[TnMe,tBu] forming the mononuclear complex [TnMe,tBu]ZnBr(HPnMe,tBu). The molecular structures of all compounds were elucidated by single-crystal X-ray diffraction analysis. Characterization in solution was performed by means of 1H, 13C and DOSY NMR spectroscopy which revealed the hexameric constitution of [TntBuZnBr]6 to be predominant. In contrast, [TnMe,tBu]ZnBr(HPnMe,tBu) was found to be dynamic in solution.
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8
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Abstract
The reactions of 1-tert butyl-5-thiotetrazole (HtttBu) with Na[BH4] provides Na[H2B(tttBu)2] (Na[1]) or Na[HB(tttBu)3] (Na[2]) in refluxing THF or xylene, respectively. Treating [RuCl(Ph)(CO)(PPh3)2] with Na[2] affords the triply-buttressed ruthenaboratrane [Ru(CO)(PPh3){κ4-B,S,S',S''-B(tttBu)3}] (5) whilst Na[1] with [IrCl(CO)(PPh3)2] or [RuCl(Ph)(CO)(PPh3)2] provides rare examples of doubly-buttressed metallaboratranes [IrH(CO)(PPh3){κ3-B,S,S'-BH(tttBu)2}] (7) and [Ru(CO)(PPh3)2{κ3-B,S,S'-BH(tttBu)2}] (12), the latter via the isolable thiotetrazoylborate complex [Ru(Ph)(CO)(PPh3){κ3-H,S,S'-H2B(tttBu)2}] (11).
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Affiliation(s)
- Anthony F Hill
- Research School of Chemistry, Australian National University, Acton, Canberra, A.C.T., Australia.
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9
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Chang HC, Chang YF, Lin SH, Lin TH, Lee WZ. Ambient Stable Cyanomethylcopper(III) Complex: a Strong Cu-C sp3 Bond Supported by a PS3-Tripodal Chelator. Inorg Chem 2019; 58:22-26. [PMID: 30991473 DOI: 10.1021/acs.inorgchem.8b02511] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
An organocuprate(III) complex, [Cu(TMSPS3)(CH2CN)]- (2), was identified along with a sequential derivative, [Cu(TMSPS3)(CN)]- (3), and an intermediate, [Cu(TMSPS3)(HN═PPh3)] (4), formed in a relative transformation. Apical ligands among these complexes all strongly associate with a robust trigonal copper(III) platform. The nature of the ligand binding was spectroscopically and computationally investigated through a series of copper(III) complexes. The bonding along the principal C3 axis is adaptable, and σ interaction dominates the axial ligand coordination, where the cyanomethyl group exhibits the strongest bonding. Complex 2 is a scarce example of a thermostable aliphatic organocuprate(III) compound, which sheds some light on the organocopper(III) chemistry widely involved in many copper-mediated catalyses.
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Affiliation(s)
- Hao-Ching Chang
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan
| | - Ya-Fan Chang
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan
| | - Sheng-Hsiang Lin
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan
| | - Tsung-Han Lin
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan
| | - Way-Zen Lee
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan
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10
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Foreman MRSJ, Hill AF, Ma C, Tshabang N, White AJP. Synthesis and ligand substitution reactions of κ4-B,S,S′,S′′-ruthenaboratranes. Dalton Trans 2019; 48:209-219. [DOI: 10.1039/c8dt04278k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Ruthenaboratranes of the form [Ru(CO)L{κ4-B(mt)3}] (mt = N-methimazolyl) arise via substitution of the PPh3 ligand in [Ru(CO)(PPh3){κ4-B(mt)3}] by L (L = PMe2Ph, PMe3, P(OMe)3, P(OEt)3, P(OPh)3) or reactions of [RuCl(R)(CO)Ln] (R = Ph, CHCHPh; n = 2, L = PCy3; n = 3, L = P(OMe)3, PMe2Ph) with Na[HB(mt)3].
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Affiliation(s)
- Mark R. St.-J. Foreman
- Department of Chemistry and Chemical Engineering
- Nuclear Chemistry and Industrial Materials Recycling
- Chalmers University of Technology
- Göteborg
- Sweden
| | - Anthony F. Hill
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
| | - Chenxi Ma
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
| | - Never Tshabang
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
- Department of Chemistry
| | - Andrew J. P. White
- Chemical Crystallography Laboratory
- Department of Chemistry
- Imperial College London White City Campus
- UK
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11
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Ma C, Hill AF. Methimazolyl based diptych bicyclo-[3.3.0]-ruthenaboratranes. Dalton Trans 2019; 48:1976-1992. [DOI: 10.1039/c8dt04813d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactions of [RuCl(R)(CO)(PPh3)2] (R = CHCHPh, Ph) with Na[H2B(mt)2] (mt = N-methyl-2-mercaptoimidazolyl) transiently provide [Ru(R)(CO)(PPh3){κ3-H,S,S′-H2B(mt)2}] which each evolve to the ruthenaboratrane [Ru(CO)(PPh3)2{κ3-B,S,S′-BH(mt)2}](Ru→B)8.
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Affiliation(s)
- Chenxi Ma
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
| | - Anthony F. Hill
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
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12
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Holler S, Tüchler M, Steller BG, Belaj F, Veiros LF, Kirchner K, Mösch-Zanetti NC. Thiopyridazine-Based Palladium and Platinum Boratrane Complexes. Inorg Chem 2018; 57:6921-6931. [PMID: 29877076 DOI: 10.1021/acs.inorgchem.8b00530] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stefan Holler
- Institute of Chemistry, University of Graz, Schubertstrasse 1, 8010 Graz, Austria
| | - Michael Tüchler
- Institute of Chemistry, University of Graz, Schubertstrasse 1, 8010 Graz, Austria
| | - Beate G. Steller
- Institute of Chemistry, University of Graz, Schubertstrasse 1, 8010 Graz, Austria
| | - Ferdinand Belaj
- Institute of Chemistry, University of Graz, Schubertstrasse 1, 8010 Graz, Austria
| | - Luis F. Veiros
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais No. 1, 1049-001 Lisboa, Portugal
| | - Karl Kirchner
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria
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13
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Holler S, Belaj F, Mösch-Zanetti NC. (Acetamide-κ O){2,2′,2′′-boranetriyltris[6- tert-butyl-4-methylpyridazine-3(2 H)-thione]-κ 4
B, S, S′, S′′}copper(I) trifluoromethanesulfonate chloroform disolvate. IUCRDATA 2018. [DOI: 10.1107/s2414314618000378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
In the title solvated complex salt, [Cu(C27H39BN6S3)(C2H5NO)](CF3O3S)·2CHCl3, the CuI atom is coordinated by the three S atoms of the pyridazine-3-thione rings in the equatorial plane [Cu—S = 2.3072 (4)–2.3280 (4) Å] and the B atom of the scorpionate ligand and the O atom of an acetamide ligand as the apices of a trigonal bipyramid [Cu—B = 2.0456 (16) Å and Cu—O = 1.9957 (11) Å]. The amide group of the latter ligand is involved in a bifurcated hydrogen bond to the trifluoromethanesulfonate anion.
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14
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Holler S, Belaj F, Mösch-Zanetti NC. {(Hydrogen 2,2′,2′′-boranetriyl)tris[6-tert-butyl-4-methylpyridazine-3(2H)-thione]-κ3H,S,S′}(triphenylphosphane-κP)copper(I) chloroform disolvate. IUCRDATA 2017. [DOI: 10.1107/s2414314617017722] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
In the title complex, [Cu(C27H40BN6S3)(C18H15P)]·2CHCl3, the CuIatom is surrounded in a trigonal-planar arrangement by the triphenylphosphane ligand and two of the three S atoms of the scorpionate ligand with an additional 3-center–2-electron B—H...Cu interaction, with the H atom as the apex of a pyramid [B—H = 1.140 (17) Å and Cu—H = 1.826 (16) Å].
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15
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Holler S, Tüchler M, Roschger MC, Belaj F, Veiros LF, Kirchner K, Mösch-Zanetti NC. Three-Fold-Symmetric Selenium-Donor Metallaboratranes of Cobalt and Nickel. Inorg Chem 2017; 56:12670-12673. [PMID: 29035539 DOI: 10.1021/acs.inorgchem.7b01730] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel selenium-containing pyridazinyl-based soft scorpionate ligand (KTnse) was synthesized. It reacts with CoCl2 and NiCl2, yielding the first metallaboratrane complexes with selenium in their donor positions. Further substitution with Ag(OTf) or NaN3 allows isolation of the respective triflate or azide complexes. Reaction with Ag(OTf) leads in the case of nickel to a dinuclear, dicationic complex with a short Ni-Ni distance, while cobalt gave a mononuclear cationic species. Substitution of the chloride by azide yields with both metals the respective azide complexes. All compounds were characterized via single-crystal X-ray diffraction analysis. Density functional theory calculations on the chloride species point to oxidized cobalt(III) and nickel(III) centers.
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Affiliation(s)
- Stefan Holler
- Institute of Chemistry, University of Graz , Schubertstrasse 1, 8010 Graz, Austria
| | - Michael Tüchler
- Institute of Chemistry, University of Graz , Schubertstrasse 1, 8010 Graz, Austria
| | - Michaela C Roschger
- Institute of Chemistry, University of Graz , Schubertstrasse 1, 8010 Graz, Austria
| | - Ferdinand Belaj
- Institute of Chemistry, University of Graz , Schubertstrasse 1, 8010 Graz, Austria
| | - Luis F Veiros
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa , Av. Rovisco Pais No. 1, 1049-001 Lisboa, Portugal
| | - Karl Kirchner
- Institute of Applied Synthetic Chemistry, Vienna University of Technology , Getreidemarkt 9, 1060 Vienna, Austria
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16
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Tüchler M, Holler S, Huber E, Fischer S, Boese AD, Belaj F, Mösch-Zanetti NC. Synthesis and Characterization of a Thiopyridazinylmethane-Based Scorpionate Ligand: Formation of Zinc Complexes and Rearrangement Reaction. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00568] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Michael Tüchler
- Institute
of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse
1, 8010 Graz, Austria
| | - Stefan Holler
- Institute
of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse
1, 8010 Graz, Austria
| | - Elke Huber
- Institute
of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse
1, 8010 Graz, Austria
| | - Susanne Fischer
- Institute
of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse
1, 8010 Graz, Austria
- Institute
of Chemistry, Physical and Theoretical Chemistry, University of Graz, Heinrichstrasse 28, 8010 Graz, Austria
| | - A. Daniel Boese
- 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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17
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Tüchler M, Holler S, Schachner JA, Belaj F, Mösch-Zanetti NC. Unusual C-N Coupling Reactivity of Thiopyridazines: Efficient Synthesis of Iron Diorganotrisulfide Complexes. Inorg Chem 2017; 56:8159-8165. [PMID: 28654286 DOI: 10.1021/acs.inorgchem.7b00865] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The reaction of iron(II) triflate with 6-tert-butyl-3-thiopyridazine (PnH) and 4-methyl-6-tert-butyl-3-thiopyridazine (MePnH) respectively led to iron bis(diorganotrisulfide) complexes [Fe(RPnS3PnR)2](OTf)2 [R = H (1a) and Me (2a)]. The corresponding perchlorate complexes were prepared by using the iron(II) chloride precursor and the subsequent addition of 2 equiv of NaClO4, giving [Fe(RPnS3PnR)2](ClO4)2 [R = H (1b) and Me (2b)]. The compounds were fully characterized including single-crystal X-ray diffraction analysis. All four compounds exhibit nearly perfect octahedral geometries with an iron center coordinated by four nitrogen atoms from two RPnS3PnR ligands and by two sulfur atoms of the central atom in the S3 unit. The diamagnetic complexes exhibit unusually high redox potentials for the Fe2+/3+ couple at E1/2 = 1.15 V (for 1a and 1b) and 1.08 V (for 2a and 2b) versus Fc/Fc+, respectively, as determined by cyclic voltammetry. Furthermore, the source of the extra sulfur atom within the S3 unit was elucidated by isolation of C-N-coupled pyridazinylthiopyridazine products.
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Affiliation(s)
- Michael Tüchler
- Institute of Chemistry, University of Graz , Schubertstrasse 1, 8010 Graz, Austria
| | - Stefan Holler
- Institute of Chemistry, University of Graz , Schubertstrasse 1, 8010 Graz, Austria
| | - Jörg A Schachner
- Institute of Chemistry, University of Graz , Schubertstrasse 1, 8010 Graz, Austria
| | - Ferdinand Belaj
- Institute of Chemistry, University of Graz , Schubertstrasse 1, 8010 Graz, Austria
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18
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Endo K. Development of Neighboring Electrophilic Activation of Active Center in Catalytic Reactions via Organometallic Intermediates. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2017. [DOI: 10.1246/bcsj.20170015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Kohei Endo
- Department of Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku, Tokyo 162-8601
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19
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20
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Endo K. Design and Development of Reactive Intermediates Based on Electrostatic Potential and Orbital Mapping: Electrophilic-Activation Strategy. J SYN ORG CHEM JPN 2017. [DOI: 10.5059/yukigoseikyokaishi.75.909] [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]
Affiliation(s)
- Kohei Endo
- Department of Chemistry, Faculty of Science, Tokyo University of Science
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21
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Drover MW, Love JA, Schafer LL. 1,3-N,O-Complexes of late transition metals. Ligands with flexible bonding modes and reaction profiles. Chem Soc Rev 2017; 46:2913-2940. [DOI: 10.1039/c6cs00715e] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
1,3-N,O-Chelating ligands are ubiquitous in nature owing to their occurrence as α-chiral amino acids in metalloproteins.
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Affiliation(s)
- Marcus W. Drover
- Department of Chemistry
- The University of British Columbia Vancouver
- Canada
| | - Jennifer A. Love
- Department of Chemistry
- The University of British Columbia Vancouver
- Canada
| | - Laurel L. Schafer
- Department of Chemistry
- The University of British Columbia Vancouver
- Canada
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22
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Holler S, Belaj F, Mösch-Zanetti NC. Tris(6- tert-butyl-4-methylpyridazine-3-thiolato-κ 2N, S)aluminium. IUCRDATA 2016. [DOI: 10.1107/s2414314616019866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The title complex, [Al(C9H13N2S)3], is composed of an aluminium atom coordinated by three bidentate thiopyridazine ligands in an octahedral environment. It has approximateC3symmetry, with Al—N distances in the range 1.9732 (17)–1.9794 (17) Å and three Al—S distances in the range 2.3961 (8)–2.4354 (8) Å. In the crystal, there are no significant intermolecular interactions present.
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