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Ha Y, Dille SA, Braun A, Colston K, Hedman B, Hodgson KO, Basu P, Solomon EI. S K-edge XAS of Cu II, Cu I, and Zn II oxidized Dithiolene complexes: Covalent contributions to structure and the Jahn-Teller effect. J Inorg Biochem 2022; 230:111752. [PMID: 35202982 PMCID: PMC9680909 DOI: 10.1016/j.jinorgbio.2022.111752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 02/01/2022] [Accepted: 02/03/2022] [Indexed: 11/26/2022]
Abstract
Reduced dithiolene ligands are bound to high valent Mo centers in the active site of the oxotransferase family of enzymes. Related model complexes have been studied with great insight by Prof. Holm and his colleagues. This study focuses on the other limit of dithiolene chemistry: an investigation of the 2-electron oxidized dithiolene bound to low-valent late transition metal (TM) ions (ZnII, CuI, and CuII). The bonding descriptions of the oxidized dithiolene [N,N-dimethyl piperazine 2,3-dithione (Me2Dt0)] complexes are probed using S K-edge X-ray absorption spectroscopy (XAS) and the results are correlated to density functional theory (DFT) calculations. These experimentally supported calculations are then extended to explain the different geometric structures of the three complexes. The ZnII(Me2Dt0)2 complex has only ligand-ligand repulsion so it is stabilized at the D2d symmetry limit. The CuI(Me2Dt0)2 complex has additional weak backbonding thus distorts somewhat from D2d toward D2h symmetry. The CuII(Me2Dt0)2 complex has a strong σ donor bond that leads to both a large Jahn-Teller stabilization to D2h and an additional covalent contribution to the geometry. The combined strong stabilization results in the square planar, D2h structure. This study quantifies the competition between the ligand-ligand repulsion and the change in electronic structures in determining the final geometric structures of the oxidized dithiolene complexes, and provides quantitative insights into the Jahn-Teller stabilization energy and its origin.
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Affiliation(s)
- Yang Ha
- Department of Chemistry, Stanford University, Stanford, CA 94035, United States; Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University, Menlo Park, CA 94025, United States; Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, United States
| | - Sara A Dille
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, 402 N Blackford St, Indianapolis, IN 46202, United States
| | - Augustin Braun
- Department of Chemistry, Stanford University, Stanford, CA 94035, United States; Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University, Menlo Park, CA 94025, United States
| | - Kyle Colston
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, 402 N Blackford St, Indianapolis, IN 46202, United States
| | - Britt Hedman
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University, Menlo Park, CA 94025, United States
| | - Keith O Hodgson
- Department of Chemistry, Stanford University, Stanford, CA 94035, United States; Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University, Menlo Park, CA 94025, United States
| | - Partha Basu
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, 402 N Blackford St, Indianapolis, IN 46202, United States
| | - Edward I Solomon
- Department of Chemistry, Stanford University, Stanford, CA 94035, United States; Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University, Menlo Park, CA 94025, United States.
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Dille SA, Colston KJ, Ratvasky SC, Pu J, Basu P. Interligand communication in a metal mediated LL'CT system - a case study. RSC Adv 2021; 11:24381-24386. [PMID: 34354823 PMCID: PMC8285364 DOI: 10.1039/d1ra04716g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 07/06/2021] [Indexed: 11/22/2022] Open
Abstract
A series of oxo-Mo(iv) complexes, [MoO(Dt2−)(Dt0)] (where Dt2− = benzene-1,2-dithiol (bdt), toluene-3,4-dithiol (tdt), quinoxaline-2,3-dithiol (qdt), or 3,6-dichloro-benzene-1,2-dithiol (bdtCl2); Dt0 = N,N′-dimethylpiperazine-2,3-dithione (Me2Dt0) or N,N′-diisopropylpiperazine-2,3-dithione (iPr2Dt0)), possessing a fully oxidized and a fully reduced dithiolene ligand have been synthesized and characterized. The assigned oxidation states of coordinated dithiolene ligands are supported with spectral and crystallographic data. The molecular structure of [MoO(tdt)(iPr2Dt0)] (6) demonstrates a large ligand fold angle of 62.6° along the S⋯S vector of the Dt0 ligand. The electronic structure of this system is probed by density functional theory (DFT) calculations. The HOMO is largely localized on the Dt2− ligand while virtual orbitals are mostly Mo and Dt0 in character. Modeling the electronic spectrum of 6 with time dependent (TD) DFT calculations attributes the intense low energy transition at ∼18 000 cm−1 to a ligand-to-ligand charge transfer (LL′CT). The electron density difference map (EDDM) for the low energy transition depicts the electron rich Dt2− ligand donating charge density to the redox-active orbitals of the electron deficient Dt0 ligand. Electronic communication between dithiolene ligands is facilitated by a Mo-monooxo center and distortion about its primary coordination sphere. The interligand communication between non-innocent dithiolene ligands of different oxidation states has been described in a Mo system. The fully reduced ene-dithiolate (Dt2−) acts as a donor moiety to the oxidized dithione (Dt0) in an LL′CT process.![]()
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Affiliation(s)
- Sara A Dille
- Department of Chemistry and Chemical Biology, Indiana University - Purdue University Indianapolis Indianapolis IN 46202 USA
| | - Kyle J Colston
- Department of Chemistry and Chemical Biology, Indiana University - Purdue University Indianapolis Indianapolis IN 46202 USA
| | - Stephen C Ratvasky
- Department of Chemistry and Biochemistry, Duquesne University Pittsburgh PA 15282 USA
| | - Jingzhi Pu
- Department of Chemistry and Chemical Biology, Indiana University - Purdue University Indianapolis Indianapolis IN 46202 USA
| | - Partha Basu
- Department of Chemistry and Chemical Biology, Indiana University - Purdue University Indianapolis Indianapolis IN 46202 USA
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3
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Redox-active ligands: Recent advances towards their incorporation into coordination polymers and metal-organic frameworks. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213891] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Dille SA, Colston KJ, Mogesa B, Cassell J, Perera E, Zeller M, Basu P. The Impact of Ligand Oxidation State and Fold Angle on the Charge Transfer Processes of Mo
IV
O‐Dithione Complexes. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001155] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sara A. Dille
- School Science Department of Chemistry and Chemical Biology Indiana University-Purdue University Indianapolis 402 N. Blackford St. Indianapolis IN 462020 USA
| | - Kyle J. Colston
- School Science Department of Chemistry and Chemical Biology Indiana University-Purdue University Indianapolis 402 N. Blackford St. Indianapolis IN 462020 USA
| | - Benjamin Mogesa
- Bayer School of Natural Science Department of Chemistry and Biochemistry Duquesne University 600 Forbes Ave. Pittsburgh PA 15282 USA
| | - Joseph Cassell
- School Science Department of Chemistry and Chemical Biology Indiana University-Purdue University Indianapolis 402 N. Blackford St. Indianapolis IN 462020 USA
| | - Eranda Perera
- Bayer School of Natural Science Department of Chemistry and Biochemistry Duquesne University 600 Forbes Ave. Pittsburgh PA 15282 USA
| | - Matthias Zeller
- College of Science Department of Chemistry Purdue University 560 Oval Dr. West Lafayette In 47907 USA
| | - Partha Basu
- School Science Department of Chemistry and Chemical Biology Indiana University-Purdue University Indianapolis 402 N. Blackford St. Indianapolis IN 462020 USA
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5
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Ballesteros Ii M, Tsui EY. Sulfur transfer reactions of a zinc tetrasulfanido complex. Dalton Trans 2020; 49:16305-16311. [PMID: 32427258 DOI: 10.1039/d0dt01384f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A zinc tetrasulfanido complex supported by a bis(carboxamide)pyridine ligand framework has been synthesized by the insertion of elemental sulfur into the zinc-S(thiolate) bond of a zinc dithiolate complex ([LZn]2-). This paper reports on sulfur transfer reactions of this polysulfanido complex ([1]2-) and compares this behavior to known reactions of metal polysulfido complexes. Complex [1]2- was demonstrated to be in exchange with [LZn]2- and free elemental sulfur in solution. Although triphenylphosphine abstracts sulfur from [1]2- to form [LZn]2-, complex [LZn]2- can abstract sulfur from the zinc polysulfido complex (TMEDA)ZnS6 (TMEDA = N,N,N',N'-tetramethylethylenediamine). The tetrasulfanido complex [1]2- can also transfer sulfur to dimethyl acetylenedicarboxylate to form a zinc dithiolene complex. These studies demonstrate that the zinc complex with a tetrasulfanido moiety can undergo similar reactions as metal complexes with purely inorganic polysulfido groups, although the final metal-containing products are different.
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Affiliation(s)
- Moises Ballesteros Ii
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA.
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Colston KJ, Dille SA, Mogesa B, Brant J, Nemykin VN, Zeller M, Basu P. Syntheses, spectroscopic, redox, and structural properties of homoleptic Iron(III/II) dithione complexes. RSC Adv 2020; 10:38294-38303. [PMID: 35517554 PMCID: PMC9057267 DOI: 10.1039/d0ra07371g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 10/10/2020] [Indexed: 11/21/2022] Open
Abstract
Two sets of FeIII/II dithione complexes [FeII( i Pr2Dt0)3][PF6]2 ([1][PF6]2), [FeII(Me2Dt0)3][PF6]2 ([2][PF6]2), and [FeIII( i Pr2Dt0)3][PF6]3 ([3][PF6]3), [FeIII(Me2Dt0)3][PF6]3 ([4][PF6]3), and compound [FeIII( i Pr2Dt0)3][FeCl4][PF]2 ([3][FeCl4][PF6]2) were synthesized from N,N'-diisopropyl piperazine-2,3-dithione ( i Pr2Dt0) and N,N'-dimethyl piperazine-2,3-dithione (Me2Dt0) ligands. Complexes [1][PF6]2-[4][PF6]3 have been characterized by NMR, IR, and UV-visible spectroscopies, and by electrochemistry. The molecular structures of [2][PF6]2 and [3][FeCl4][PF6]2 have been determined by X-ray crystallography. Complexes [2][PF6]2 and [3][FeCl4][PF6]2 both crystallized in the monoclinic space group P21/n. Both complexes exhibit distorted octahedral geometry and the three coordinated ligands in each complex exhibit different dithione folding. Complexes [1][PF6]2-[4][PF6]3 exhibit a single FeIII/II based couple and three quasi-reversible ligand-based redox couples. The electronic spectra of [1][PF6]2-[4][PF6]3 show intense MLCT bands that indicate strong mixing between metal and ligand orbitals. DFT calculations were used to provide a framework for understanding the electronic origin of their redox chemistry and spectroscopic features.
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Affiliation(s)
- Kyle J Colston
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis IN 46202 USA
| | - Sara A Dille
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis IN 46202 USA
| | - Benjamin Mogesa
- Department of Chemistry and Biochemistry, Duquesne University Pittsburgh PA 15282 USA
| | - Jacilynn Brant
- The Air Force Research Laboratory, Wright-Patterson AFB OH 45433 USA
| | - Victor N Nemykin
- Department of Chemistry, University of Tennessee Knoxville TN 37996 USA
| | - Matthias Zeller
- Department of Chemistry, Purdue University West Layfette IN 47907 USA
| | - Partha Basu
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis IN 46202 USA
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Mou WY, Li T, Xie B, Zhang DL, Lai C, Deng CL, Cao JX, Bai XX, Liu XQ. Neutral heteroleptic nickel complexes incorporating maleonitriledithiolate and bis(diphenylphosphanyl)amine as robust molecular electrocatalysts for hydrogen evolution. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119587] [Citation(s) in RCA: 3] [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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8
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Basu P, Colston KJ, Mogesa B. Dithione, the antipodal redox partner of ene-1,2-dithiol ligands and their metal complexes. Coord Chem Rev 2020; 409:213211. [PMID: 38094102 PMCID: PMC10718511 DOI: 10.1016/j.ccr.2020.213211] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Defining the oxidation state of the central atom in a coordination compound is fundamental in understanding the electronic structure and provides a starting point for elucidating molecular properties. The presence of non-innocent ligand(s) can obscure the oxidation state of the central atom as the ligand contribution to the electronic structure is difficult to ascertain. Redox-active ligands, such as dithiolene ligands, are well known non-innocent ligands that can exist in both a fully reduced (Dt2-) and fully oxidized (Dt0) states. Complexes containing the fully oxidized dithione state of the ligand are uncommon and only a few have been completely characterized. Dithione ligands are of interest due to their electron-deficient nature and ability to act as an electron acceptor for more electron-rich moieties, such as other dithiolene ligands or metal centers. This article focuses the syntheses, structures, and metal coordination, particularly coordination compounds, of dithione ligands. Various examples of mono, bis, and tris dithione complexes are discussed.
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Affiliation(s)
- Partha Basu
- Department of Chemistry and Chemical Biology, IUPUI, Indianapolis, IN 46202, United States
| | - Kyle J. Colston
- Department of Chemistry and Chemical Biology, IUPUI, Indianapolis, IN 46202, United States
| | - Benjamin Mogesa
- Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, PA 15282, United States
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9
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Colston KJ, Dille SA, Mogesa B, Astashkin AV, Brant JA, Zeller M, Basu P. Design, Synthesis, and Structure of Copper Dithione Complexes: Redox‐Dependent Charge Transfer. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201901222] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kyle J. Colston
- Department of Chemistry and Chemical Biology Indiana University‐Purdue University Indianapolis 402 N. Blackford Street 46202 Indianapolis IN USA
| | - Sara A. Dille
- Department of Chemistry and Chemical Biology Indiana University‐Purdue University Indianapolis 402 N. Blackford Street 46202 Indianapolis IN USA
| | - Benjamin Mogesa
- Department of Chemistry and Biochemistry Duquesne University 15282 Pittsburgh PA USA
| | - Andrei V. Astashkin
- Department of Chemistry and Biochemistry University of Arizona 85721 Tucson AZ USA
| | - Jacilynn A. Brant
- The Air Force Research Laboratory Aerospace Systems Directorate 1950 Fifth Street, Building 18 45433 Wright‐Patterson Air Force Base Ohio USA
| | - Matthias Zeller
- Department of Chemistry Purdue University 560 Oval Drive 47907 West Lafayette IN USA
| | - Partha Basu
- Department of Chemistry and Chemical Biology Indiana University‐Purdue University Indianapolis 402 N. Blackford Street 46202 Indianapolis IN USA
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10
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Attar SS, Marchiò L, Pilia L, Casula MF, Espa D, Serpe A, Pizzotti M, Marinotto D, Deplano P. Design of nickel donor–acceptor dithiolenes for 2nd order nonlinear optics: an experimental and computational study. NEW J CHEM 2019. [DOI: 10.1039/c9nj02976a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study, concerning the influence on the NLO properties of a remote functionality in the donor of D–Ni–A dithiolenes 1–4, allows to point out the relationship between NLO properties and the donor capability in modulating the low-energy absorption.
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Affiliation(s)
- Salahuddin S. Attar
- Texas A&M University at Qatar (TAMUQ)
- Texas A&M Engineering Building
- Education City
- Doha
- Qatar
| | - Luciano Marchiò
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale
- Università di Parma
- Parma
- Italy
| | - Luca Pilia
- Dipartimento di Ingegneria Meccanica
- Chimica e dei Materiali
- Università di Cagliari
- Cagliari
- Italy
| | - Maria F. Casula
- Dipartimento di Ingegneria Meccanica
- Chimica e dei Materiali
- Università di Cagliari
- Cagliari
- Italy
| | - Davide Espa
- Dipartimento di Fisica
- INSTM Research Unit
- Università di Cagliari
- Monserrato
- Italy
| | - Angela Serpe
- Dipartimento di Ingegneria Civile
- Ambientale e Archittetura
- Università di Cagliari
- Cagliari
- Italy
| | - Maddalena Pizzotti
- Department of Chemistry
- INSTM Research Unit
- University of Milan
- 20133 Milano
- Italy
| | - Daniele Marinotto
- ISTM-CNR
- Centro CIMAINA dell’Università degli Studi di Milano e UdR dell'INSTM
- 20133 Milano
- Italy
| | - Paola Deplano
- Dipartimento di Fisica
- INSTM Research Unit
- Università di Cagliari
- Monserrato
- Italy
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11
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Downes CA, Marinescu SC. One dimensional metal dithiolene (M = Ni, Fe, Zn) coordination polymers for the hydrogen evolution reaction. Dalton Trans 2016; 45:19311-19321. [DOI: 10.1039/c6dt03257e] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Immobilization via coordination polymers is a viable method to achieve efficient electrocatalytic H2 evolution from water.
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