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Suman SG, Snæbjörnsson T, Ragnarsdóttir O, Polukeev AV, Wendt OF. Synthesis of mixed salts of the [Mo2O2(μ-S)2(SCN)6-n(L)n](4+n)− anion (n = 0–2); structures of [Mo2O2(μ-S)2(SCN)5(CH3CN)]3−, [Mo2O2(μ-S)2(CN)5]3−, and [Mo2O2(μ-S)2(CN)2(O)]2−, and probing the ligand exchange of thiocyanate and cyanide. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Suman SG, Gretarsdottir JM, Penwell PE, Gunnarsson JP, Frostason S, Jonsdottir S, Damodaran KK, Hirschon A. Reaction Chemistry of the syn-[Mo 2O 2(μ-S) 2(S 2)(DMF) 3] Complex with Cyanide and Catalytic Thiocyanate Formation. Inorg Chem 2020; 59:7644-7656. [PMID: 32401019 DOI: 10.1021/acs.inorgchem.0c00608] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Removal of cyanide as nontoxic thiocyanate under physiological conditions may serve as a catalytic detoxification route in vivo. Aqueous catalytic reaction conditions were explored where at the conditions employed the reaction proceeded to exhaustion in 1 h. The complex, syn-[Mo2O2(μ-S)2(S2)(DMF)3] 1, participates in a ligand exchange reaction of the dimethylformamide ligands and cyanide. Simultaneous sulfur abstraction reaction from the terminal disulfide group forms thiocyanate and terminal sulfido ligand. Respective reaction rates for the two reactions appear competitive where different products were isolated solely based on change of reaction temperature. The approach to determine the number of cyanide ligands participating in the ligand exchange reaction by varying the stoichiometry and reaction temperature led to identification and isolation of tetranuclear complexes 2 and 5 and dinuclear complexes 3, 4, and 6. A synthesized and fully characterized thiocyanate analog of 6 (7) supports spectroscopic characterization of 6. The tetranuclear anion, [Mo4O4(μ-S)6(CN)4]4-, 2, was crystallized from a reaction at ambient temperature. The dinuclear anion, [Mo2O2(μ-S)2(S)(CN)3]3-, 3, was crystallized from similar reaction conditions at lower temperature. The reaction yield of thiocyanate obtained at pH of 7.4 and at 9.2 as a function of time, for several ratios of cyanide, favors the sulfur abstraction reaction at elevated pH. The sulfur abstraction reaction is the first step in a proposed mechanism of the reaction of cyanide and thiosulfate to form thiocyanate and sulfite by 1.
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Affiliation(s)
- Sigridur G Suman
- Science Institute, University of Iceland, Dunhagi 3, 107 Reykjavik, Iceland.,Chemical Science and Technology Laboratory, Physical Sciences Division, SRI International, 333 Ravenswood Avenue, Menlo Park, California 94025, United States
| | | | - Paul E Penwell
- Chemical Science and Technology Laboratory, Physical Sciences Division, SRI International, 333 Ravenswood Avenue, Menlo Park, California 94025, United States
| | - Jon P Gunnarsson
- Science Institute, University of Iceland, Dunhagi 3, 107 Reykjavik, Iceland
| | - Sindri Frostason
- Science Institute, University of Iceland, Dunhagi 3, 107 Reykjavik, Iceland
| | | | | | - Albert Hirschon
- Chemical Science and Technology Laboratory, Physical Sciences Division, SRI International, 333 Ravenswood Avenue, Menlo Park, California 94025, United States
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Jochim A, Rams M, Neumann T, Wellm C, Reinsch H, Wójtowicz GM, Näther C. Structural Diversity in Ni Chain Coordination Polymers: Synthesis, Structures, Isomerism and Magnetism. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800939] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Aleksej Jochim
- Institute of Inorganic Chemistry; Christian-Albrechts-University of Kiel; Max-Eyth-Strasse 2 24118 Kiel Germany
| | - Michał Rams
- Institute of Physics; Jagiellonian University; Łojasiewicza 11 30-348 Kraków Poland
| | - Tristan Neumann
- Institute of Inorganic Chemistry; Christian-Albrechts-University of Kiel; Max-Eyth-Strasse 2 24118 Kiel Germany
| | - Carsten Wellm
- Institute of Inorganic Chemistry; Christian-Albrechts-University of Kiel; Max-Eyth-Strasse 2 24118 Kiel Germany
| | - Helge Reinsch
- Institute of Inorganic Chemistry; Christian-Albrechts-University of Kiel; Max-Eyth-Strasse 2 24118 Kiel Germany
| | | | - Christian Näther
- Institute of Inorganic Chemistry; Christian-Albrechts-University of Kiel; Max-Eyth-Strasse 2 24118 Kiel Germany
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Palion-Gazda J, Gryca I, Maroń A, Machura B, Kruszynski R. Thiocyanate cadmium(II) coordination compounds with 2,3,5,6-tetrakis(2-pyridyl)pyrazine – Synthesis, structure and luminescent properties. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.07.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Synthesis, Structures and Properties of Cobalt Thiocyanate Coordination Compounds with 4-(hydroxymethyl)pyridine as Co-ligand. CRYSTALS 2016. [DOI: 10.3390/cryst6040038] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Zhang J, Wang Y, Chen W, Long L, Zhang C. Three Distinct Silver(I) Coordination Polymers: Bridging-Ligand Directed Syntheses, Crystal Structures, Luminescence, and Nitrobenzene Sensing Properties. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201400595] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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