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Luminescent Re(I) scorpionates supported by tris(2-pyridyl)phosphine and its derivatives. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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2
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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: 6] [Impact Index Per Article: 1.5] [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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Mohammed GI, Ahmad W, Alwael H, Saigl ZM, Al-Eryani DA, Bashammakh AS, El-Shahawi MS. A quercetin based fluorescent chemical sensor for ultra-sensitive determination and speciation of tungsten species in water. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 229:117929. [PMID: 31918153 DOI: 10.1016/j.saa.2019.117929] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 12/05/2019] [Accepted: 12/06/2019] [Indexed: 06/10/2023]
Abstract
The current study explores the use of quercetin for developing a highly selective spectrofluorimetric methodology for trace determination, speciation and thermodynamic characterization of tungstate (WO42-) species in water. The study relies on the principle of chelate formation between WO42- and quercetin with subsequent increase in the emission intensity. The developed method could be applied successfully in a wide linear range (1.0-400.0 μg L-1) with a detection limit of 0.28 μg L-1 and quantification limit of 0.92 μg L-1 at λex/em = 400/492 nm. The developed method was successfully applied in real tap and waste water samples. The suitability of the proposed method was further validated by inductively coupled plasma-optical emission spectrometry (ICP-OES) in terms of student's t and F tests at 95% confidence. Characterization (NMR, FTIR and electronic spectra), stoichiometry, stability constant, fluorescence mechanism and thermodynamic parameters (ΔH, ΔS, and ΔG) of the produced complex species were evaluated and properly assigned. The fluorescence quenching mechanism of tungstate quercetin complex by Triton X-100 was also evaluated for computing Stern-Volmer quenching constant and approximating quenching sphere. The method showed a clear significance over most of the reported methods for tungsten in literature in terms of good accuracy, robustness, ruggedness, short analytical time and cost-effectiveness.
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Affiliation(s)
- G I Mohammed
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; Department of Chemistry, Faculty of Applied Sciences, Umm AL-Qura University, Makkah, Saudi Arabia
| | - W Ahmad
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - H Alwael
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Z M Saigl
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - D A Al-Eryani
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - A S Bashammakh
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - M S El-Shahawi
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.
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Gushchin AL, Rogachev AV, Fomenko YS, Sokolov MN. Chalcogenide Cluster Complexes of Group Five Transition Metals: Synthetic and Structural Aspects. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619100019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Liu Y, Zhang F, Wu P, Deng C, Yang Q, Xue J, Shi Y, Wang J. Cobalt(II)-Based Metal–Organic Framework as Bifunctional Materials for Ag(I) Detection and Proton Reduction Catalysis for Hydrogen Production. Inorg Chem 2018; 58:924-931. [DOI: 10.1021/acs.inorgchem.8b03046] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Yanhong Liu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
| | - Fengjie Zhang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
| | - Pengyan Wu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
| | - Chaofan Deng
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
| | - Qimeng Yang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
| | - Jiajia Xue
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
| | - Yanhui Shi
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
| | - Jian Wang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
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Gushchin AL, Laricheva YA, Sokolov MN, Llusar R. Tri- and tetranuclear molybdenum and tungsten chalcogenide clusters: on the way to new materials and catalysts. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4800] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Emission tuning in Re(I) complexes: Expanding heterocyclic ligands and/or introduction of perfluorinated ligands. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.08.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Bustelo E, Gushchin AL, Fernández-Trujillo MJ, Basallote MG, Algarra AG. On the Critical Effect of the Metal (Mo vs. W) on the [3+2] Cycloaddition Reaction of M3 S4 Clusters with Alkynes: Insights from Experiment and Theory. Chemistry 2015; 21:14823-33. [PMID: 26383190 DOI: 10.1002/chem.201502644] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Indexed: 01/19/2023]
Abstract
Whereas the cluster [Mo3 S4 (acac)3 (py)3 ](+) ([1](+) , acac=acetylacetonate, py=pyridine) reacts with a variety of alkynes, the cluster [W3 S4 (acac)3 (py)3 ](+) ([2](+) ) remains unaffected under the same conditions. The reactions of cluster [1](+) show polyphasic kinetics, and in all cases clusters bearing a bridging dithiolene moiety are formed in the first step through the concerted [3+2] cycloaddition between the C≡C atoms of the alkyne and a Mo(μ-S)2 moiety of the cluster. A computational study has been conducted to analyze the effect of the metal on these concerted [3+2] cycloaddition reactions. The calculations suggest that the reactions of cluster [2](+) with alkynes feature ΔG(≠) values only slightly larger than its molybdenum analogue, however, the differences in the reaction free energies between both metal clusters and the same alkyne reach up to approximately 10 kcal mol(-1) , therefore indicating that the differences in the reactivity are essentially thermodynamic. The activation strain model (ASM) has been used to get more insights into the critical effect of the metal center in these cycloadditions, and the results reveal that the change in reactivity is entirely explained on the basis of the differences in the interaction energies Eint between the cluster and the alkyne. Further decomposition of the Eint values through the localized molecular orbital-energy decomposition analysis (LMO-EDA) indicates that substitution of the Mo atoms in cluster [1](+) by W induces changes in the electronic structure of the cluster that result in weaker intra- and inter-fragment orbital interactions.
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Affiliation(s)
- Emilio Bustelo
- Departmento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Campus Universitario de Puerto Real, Universidad de Cádiz, 11510 Puerto Real, Cádiz (Spain)
| | - Artem L Gushchin
- Nikolaev Institute of Inorganic Chemistry, Russian Academy of Sciences, Novosibirsk State University, 630090 Novosibirsk (Russia)
| | - M Jesús Fernández-Trujillo
- Departmento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Campus Universitario de Puerto Real, Universidad de Cádiz, 11510 Puerto Real, Cádiz (Spain)
| | - Manuel G Basallote
- Departmento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Campus Universitario de Puerto Real, Universidad de Cádiz, 11510 Puerto Real, Cádiz (Spain).
| | - Andrés G Algarra
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691 Stockholm (Sweden).
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Recatalá D, Llusar R, Barlow A, Wang G, Samoc M, Humphrey MG, Guschin AL. Synthesis and optical power limiting properties of heteroleptic Mo3S7 clusters. Dalton Trans 2015; 44:13163-72. [PMID: 26110541 DOI: 10.1039/c5dt01244a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Substitution of the halide ligands in (Bu4N)2[Mo3S7X6] (X = Cl, Br) by diimine ligands, such as 4,4'-dimethyl-2,2'-bipyridine (dmbpy), 2,2'-bipyridine (bpy) and 1,10-phenanthroline (phen), affords the neutral heteroleptic clusters Mo3S7Cl4(dmbpy) (), Mo3S7Br4(dmbpy) (), Mo3S7Br4(bpy) (), and Mo3S7Br4(phen) (). Further substitution of the halide ligands in Mo3S7Br4(diimine) clusters by dmit (1,3-dithiole-2-thione-4,5-dithiolate) allows the preparation of the mixed diimine-dithiolene neutral cluster complexes Mo3S7(dnbpy)(dmit)2 (, dnbpy = 4,4'-dinonyl-2,2'-bipyridine), Mo3S7(dcmbpy)(dmit)2 (, dcmbpy = 4,4'-dimethoxycarbonyl-2,2'-bipyridine), and Mo3S7(dcbpy)(dmit)2 (, dcbpy = 2,2'-bipyridine-4,4'-dicarboxylic acid). The optical limiting properties of complexes have been assessed by the open-aperture Z-scan technique at 570 nm, employing a nanosecond optical parametric oscillator. In order to investigate the effect of increasing the π-system, complexes , with the general formula Mo3S7X4(diimine), (X = Cl, Br), were compared to clusters , containing the dmit ligand. The influence of the metal content on the optical power limiting properties was also investigated by comparing the trinuclear series of complexes prepared herein with the bis(dithiolene) dinuclear cluster (Et4N)2[Mo2O2S2(BPyDTS2)2], which has been recently prepared by our group. All trinuclear clusters are efficient optical limiters (σeff > σ0) with the threshold limiting fluence F15% decreasing on proceeding from dinuclear to trinuclear clusters and, generally, on extending the π-system.
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Affiliation(s)
- David Recatalá
- Departament de Química Física i Analítica, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castelló, Spain.
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Recatalá D, Llusar R, Galindo F, Brylev KA, Gushchin AL. Heteroleptic Phenanthroline Complexes of Trinuclear Molybdenum Clusters with Luminescent Properties. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201403228] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- David Recatalá
- Departament de Química Física i Analítica, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castelló, Spain, http://www.grupo‐rllusar.uji.es
| | - Rosa Llusar
- Departament de Química Física i Analítica, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castelló, Spain, http://www.grupo‐rllusar.uji.es
| | - Francisco Galindo
- Departament de Química Inorgànica i Orgànica, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castelló, Spain
| | - Konstantin A. Brylev
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
- Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Artem L. Gushchin
- Departament de Química Física i Analítica, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castelló, Spain, http://www.grupo‐rllusar.uji.es
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
- Novosibirsk State University, 630090 Novosibirsk, Russia
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Gushchin AL, Laricheva YA, Abramov PA, Virovets AV, Vicent C, Sokolov MN, Llusar R. Homoleptic Molybdenum Cluster Sulfides Functionalized with Noninnocent Diimine Ligands: Synthesis, Structure, and Redox Behavior. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402343] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Artem L. Gushchin
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Pr. Lavrentyeva 3, 630090 Novosibirsk, Russia, http://www.niic.nsc.ru
- Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Yuliya A. Laricheva
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Pr. Lavrentyeva 3, 630090 Novosibirsk, Russia, http://www.niic.nsc.ru
| | - Pavel A. Abramov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Pr. Lavrentyeva 3, 630090 Novosibirsk, Russia, http://www.niic.nsc.ru
- Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Alexander V. Virovets
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Pr. Lavrentyeva 3, 630090 Novosibirsk, Russia, http://www.niic.nsc.ru
| | - Cristian Vicent
- Serveis Centrals d'Instrumentació Cientifica, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castelló, Spain
| | - Maxim N. Sokolov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Pr. Lavrentyeva 3, 630090 Novosibirsk, Russia, http://www.niic.nsc.ru
- Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Rosa Llusar
- Dept. de Química Física i Analítica, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castelló, Spain
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