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Olubummo A, Zhao L, Hartman A, Tom H, Zhao Y, Wycoff K. Photothermal bleaching of nickel dithiolene for bright multi-colored 3D printed parts. Nat Commun 2023; 14:586. [PMID: 36737480 PMCID: PMC9898272 DOI: 10.1038/s41467-022-35195-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 11/22/2022] [Indexed: 02/05/2023] Open
Abstract
HP's Multi Jet Fusion is a powder bed fusion 3D printing technology that utilizes a carbon-based radiation absorber in combination with a near infrared (NIR) light source to facilitate the fusion of polymer powder in a layer-by-layer fashion to generate 3D parts. Most available carbon-based and NIR radiation absorbers have an intrinsic dark color, which as a result will only produce black/gray and dark colored parts. However, there are many applications that require variable color, including prosthetics, medical models, and indicators, among others. To create white, bright colored, and translucent parts with MJF, a visibly transparent and colorless radiation absorber is required. In this paper, we designed an activating fusing agent (AFA) that contains a red, strong NIR absorbing dye that turns colorless after harvesting irradiation energy during the MJF 3D printing process and provide a bright colored part when working with other color agents.
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Affiliation(s)
- Adekunle Olubummo
- grid.418547.b0000 0004 0647 9083HP Labs, 1501 Page Mill Road, Palo Alto, CA 94304 USA
| | - Lihua Zhao
- grid.418547.b0000 0004 0647 9083HP Labs, 1501 Page Mill Road, Palo Alto, CA 94304 USA
| | - Aja Hartman
- grid.418547.b0000 0004 0647 9083HP Labs, 1501 Page Mill Road, Palo Alto, CA 94304 USA
| | - Howard Tom
- grid.418547.b0000 0004 0647 9083HP Labs, 1501 Page Mill Road, Palo Alto, CA 94304 USA
| | - Yan Zhao
- grid.418547.b0000 0004 0647 9083HP Labs, 1501 Page Mill Road, Palo Alto, CA 94304 USA
| | - Kyle Wycoff
- grid.418547.b0000 0004 0647 9083HP Labs, 1501 Page Mill Road, Palo Alto, CA 94304 USA
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2
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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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3
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Yuan Q, Cao W, Wang XB. Cryogenic and temperature-dependent photoelectron spectroscopy of metal complexes. INT REV PHYS CHEM 2020. [DOI: 10.1080/0144235x.2020.1719699] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Qinqin Yuan
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Wenjin Cao
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Xue-Bin Wang
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
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4
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Schlimgen AW, Mazziotti DA. Static and Dynamic Electron Correlation in the Ligand Noninnocent Oxidation of Nickel Dithiolates. J Phys Chem A 2017; 121:9377-9384. [DOI: 10.1021/acs.jpca.7b09567] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Anthony W. Schlimgen
- Department of Chemistry and
the James Franck Institute, The University of Chicago, Chicago, Illinois 60637, United States
| | - David A. Mazziotti
- Department of Chemistry and
the James Franck Institute, The University of Chicago, Chicago, Illinois 60637, United States
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5
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Liu X, Hou GL, Wang X, Wang XB. Negative Ion Photoelectron Spectroscopy Reveals Remarkable Noninnocence of Ligands in Nickel Bis(dithiolene) Complexes [Ni(dddt)2]− and [Ni(edo)2]−. J Phys Chem A 2016; 120:2854-62. [DOI: 10.1021/acs.jpca.6b02711] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xing Liu
- College
of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
- Department
of Chemistry, Tongji University, Shanghai 200092, China
| | - Gao-Lei Hou
- Physical
Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, MS K8-88, Richland, Washington 99352, United States
| | - Xuefeng Wang
- Department
of Chemistry, Tongji University, Shanghai 200092, China
| | - Xue-Bin Wang
- Physical
Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, MS K8-88, Richland, Washington 99352, United States
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6
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Mogesa B, Perera E, Rhoda HM, Gibson JK, Oomens J, Berden G, van Stipdonk MJ, Nemykin VN, Basu P. Solution, Solid, and Gas Phase Studies on a Nickel Dithiolene System: Spectator Metal and Reactor Ligand. Inorg Chem 2015; 54:7703-16. [PMID: 26244772 DOI: 10.1021/acs.inorgchem.5b00531] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The syntheses of cationic nickel complexes using N,N'-dimethyl piperazine 2,3-dithione (Me2Dt(0)) and N,N'-diisopropyl piperazine 2,3-dithione ((i)Pr2Dt(0)) ligands are reported. These ligands were used in synthesizing bis and tris(dithione)Ni(II) complexes as tetrafluoroborate or hexafluorophosphate salts, i.e., [Ni((i)Pr2Dt(0))2][BF4]2 ([1a][BF4]2), [Ni((i)Pr2Dt(0))2][PF6]2 ([1a][PF6]2), [Ni(Me2Dt(0))2][BF4]2 ([1b][BF4]2), [Ni((i)Pr2Dt(0))3][BF4]2 ([2a][BF4]2), and [Ni((i)Pr2Dt(0))3][PF6]2 ([2a][PF6]2), respectively. Complex [2a][PF6]2 was isolated from a methanolic solution of [1a][PF6]2. Compound [1a][BF4]2 crystallizes in a trigonal crystal system (space group, P31/c) and exhibits unique packing features, whereas [2a][BF4]2 crystallizes in a monoclinic (P21/n) space group. Cyclic voltammograms of [1a][BF4]2 and [1b][BF4]2 are indicative of four reduction processes associated with stepwise single-electron reduction of the ligands. Spectroelectrochemical experiments on [1a][BF4]2 exhibit an intervalence charge transfer (IVCT) transition as a spectroscopic signature of the mixed-valence [Ni((i)Pr2Dt(0))((i)Pr2Dt(1-))](-) species. Analysis of this IVCT band suggests that this ligand based mixed valence complex, [Ni((i)Pr2Dt(0))((i)Pr2Dt(1-))](-), behaves more like a traditional class II/III metal based mixed-valence complex. The density functional theory (DFT) and time dependent DFT calculations provide a theoretical framework for understanding the electronic structures and the nature of excited states of the target compounds that are consistent with their spectroscopic and redox properties. Vibrational spectra of [1a](2+) and [2a](2+) were investigated as discrete species in the gas phase using infrared multiple photon dissociation (IRMPD) spectroscopy.
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Affiliation(s)
- Benjamin Mogesa
- †Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, Pennsylvania 15282, United States
| | - Eranda Perera
- †Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, Pennsylvania 15282, United States
| | - Hannah M Rhoda
- ‡Department of Chemistry and Biochemistry, University of Minnesota-Duluth, Duluth, Minnesota 55812, United States
| | - John K Gibson
- §Chemical Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Jos Oomens
- ∥Radboud University, Institute for Molecules and Materials, FELIX Laboratory, Toernooiveld 7c, 6525ED Nijmegen, The Netherlands
| | - Giel Berden
- ∥Radboud University, Institute for Molecules and Materials, FELIX Laboratory, Toernooiveld 7c, 6525ED Nijmegen, The Netherlands
| | - Michael J van Stipdonk
- †Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, Pennsylvania 15282, United States
| | - Victor N Nemykin
- ‡Department of Chemistry and Biochemistry, University of Minnesota-Duluth, Duluth, Minnesota 55812, United States
| | - Partha Basu
- †Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, Pennsylvania 15282, United States
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7
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Wang LS. Perspective: Electrospray photoelectron spectroscopy: From multiply-charged anions to ultracold anions. J Chem Phys 2015; 143:040901. [DOI: 10.1063/1.4927086] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Affiliation(s)
- Lai-Sheng Wang
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA
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Espa D, Pilia L, Marchiò L, Mercuri ML, Serpe A, Sessini E, Deplano P. Near-infrared pigments based on ion-pair charge transfer salts of dicationic and dianionic metal-dithiolene [M(II) = Pd, Pt] complexes. Dalton Trans 2013; 42:12429-39. [PMID: 23863989 DOI: 10.1039/c3dt51407b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Mixing [M(Et2dazdt)2](BF4)2 [M = Ni(II), Pd(II), Pt(II); Et2dazdt = N,N'-diethyl-perhydrodiazepine-2,3-dithione] with (Bu4N)2[M(mnt)2] (mnt = maleonitrile-2,3-dithiolate) in CH3CN produces the known mixed ligand dithiolene complex [Ni(Et2dazdt)(mnt)] in the nickel case and ion-pair salts [M(Et2dazdt)2][M(mnt)2] in the palladium (1) and platinum (2) cases. Structural characterization of 2 shows that the anionic (donor) and cationic (acceptor) complexes form an irregular stack that lies in the bc crystallographic plane. The shortest contacts exchanged by the anion and cation molecules within each stack are those occurring through the hydrogen atoms of the CH2 groups of Et2dazdt and the Pt(2)-S(22) segment (d(H(81a)-S(22) = 2.981(3) Å) and the nitrogen atom of the cyano group of mnt and the carbon atom of one of the thione moieties (d(N(12)-C(11) = 3.179(3) Å). The Pt atom of [Pt(mnt)2](2-) is surrounded by two hydrogen atoms of the Et2dazdt ligand, whereas the Pt atom of [Pt(Et2dazdt)2](2+) is surrounded by two carbon atoms of the dithiolate moiety of mnt. Intramolecular interactions are due to contacts exchanged mainly through H-atoms, which are suitable to mediate charge-transfer (CT) interactions. In fact, these salts are characterized by a long wavelength CT peak [λmax = 905 nm (1), 937 nm (2)], which makes them candidates as near-infrared pigments, whose properties are tunable with the redox features of the components, the energy of the NIR absorption being relatable to the driving force of electron transfer from the donor (dianion) to the acceptor (dication). A thorough description of interactions occurring between the complex anions and complex cations has been achieved by investigating the Hirshfeld surface (HS) properties. Computational methods are in agreement with experimental findings and allow us to highlight the electronic features of the components of these CT salts, providing a structure-property relationship, useful in designing new candidates to optimize the desired properties.
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Affiliation(s)
- Davide Espa
- Dipartimento di Scienze Chimiche e Geologiche, Research Unit of INSTM, Università di Cagliari, S.S. 554-Bivio per Sestu, I09042 Monserrato-Cagliari, Italy
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9
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Zhu RM, Hu L, Li YZ, Song Y, Zuo JL. Syntheses, crystal structures and properties of dinuclear hydrido-tris(3,5-diphenylpyrazol-1-yl)borate complexes with the S―S coupled and dimerized quinoxaline-2,3-dithiolate ligand. INORG CHEM COMMUN 2013. [DOI: 10.1016/j.inoche.2013.05.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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10
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Eckenhoff WT, McNamara WR, Du P, Eisenberg R. Cobalt complexes as artificial hydrogenases for the reductive side of water splitting. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2013; 1827:958-73. [PMID: 23689026 DOI: 10.1016/j.bbabio.2013.05.003] [Citation(s) in RCA: 133] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 04/19/2013] [Accepted: 05/09/2013] [Indexed: 10/26/2022]
Abstract
The generation of H2 from protons and electrons by complexes of cobalt has an extensive history. During the past decade, interest in this subject has increased as a result of developments in hydrogen generation that are driven electrochemically or photochemically. This article reviews the subject of hydrogen generation using Co complexes as catalysts and discusses the mechanistic implications of the systems studied for making H2. This article is part of a Special Issue entitled: Metals in Bioenergetics and Biomimetics Systems.
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11
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Dang L, Shibl MF, Yang X, Harrison DJ, Alak A, Lough AJ, Fekl U, Brothers EN, Hall MB. Apparent Anti-Woodward–Hoffmann Addition to a Nickel Bis(dithiolene) Complex: The Reaction Mechanism Involves Reduced, Dimetallic Intermediates. Inorg Chem 2013; 52:3711-23. [DOI: 10.1021/ic302236u] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Li Dang
- Department of Chemistry, Texas A&M University, College Station, Texas, U.S.A
| | | | - Xinzheng Yang
- Department of Chemistry, Texas A&M University, College Station, Texas, U.S.A
| | - Daniel J. Harrison
- Department of Chemical and Physical
Sciences, University of Toronto, Mississauga,
Ontario, Canada L5L 1C6
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada M5S 3H6
| | - Aiman Alak
- Department of Chemical and Physical
Sciences, University of Toronto, Mississauga,
Ontario, Canada L5L 1C6
| | - Alan J. Lough
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada M5S 3H6
| | - Ulrich Fekl
- Department of Chemical and Physical
Sciences, University of Toronto, Mississauga,
Ontario, Canada L5L 1C6
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada M5S 3H6
| | | | - Michael B. Hall
- Department of Chemistry, Texas A&M University, College Station, Texas, U.S.A
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12
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Dau PD, Hruszkewycz DP, Huang DL, Chalkley MJ, Liu HT, Green JC, Hazari N, Wang LS. Photoelectron Spectroscopy of Palladium(I) Dimers with Bridging Allyl Ligands. Organometallics 2012. [DOI: 10.1021/om300956g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Phuong Diem Dau
- The Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Damian P. Hruszkewycz
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut
06520, United States
| | - Dao-Ling Huang
- The Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Matthew J. Chalkley
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut
06520, United States
| | - Hong-Tao Liu
- The Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Jennifer C. Green
- The
Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QR, U.K
| | - Nilay Hazari
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut
06520, United States
| | - Lai-Sheng Wang
- The Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
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13
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Zhou H, Zhang Y, Zhu DR. DFT studies on some properties of maleonitriledithiolate complexes [M(mnt)2]2- (M=Ni, Pd, Pt and Zn, Cd, Hg). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 86:20-26. [PMID: 22070993 DOI: 10.1016/j.saa.2011.09.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2011] [Revised: 09/10/2011] [Accepted: 09/13/2011] [Indexed: 05/31/2023]
Abstract
The structures and some molecular properties of the complexes M(mnt)(2)(2-) (M=Ni, Pd, Pt and Zn, Cd, Hg; mnt(2-)=deprotonated maleonitriledithiolate) have been studied by using density functional theory (DFT) B3LYP/LanL2DZ level of theory. Computed binding energies show that the sequences of binding strengths are Ni<Pd<Pt and Cd<Hg<Zn. The natural bonding orbitals analyses show that Ni, Pd and Pt gain 1.40e, 1.62e and 1.72e, respectively to their ns, [Formula: see text] and [Formula: see text] orbitals from both ligand mnt(2-) and (n-1)d(yz) of metal ions, while Zn, Cd and Hg complexes gain electrons to their ns orbitals. The absorption spectra of these complexes were obtained by using time-dependent density functional theory associated with polarized continuum model. Comparison of the absorption spectra in acetonitrile solution with those in gas phase show that the solvatochromic effect made the lowest energy absorption red shift by 31, 34 and 44 nm for d(8) metal complexes Ni(mnt)(2)(2-), Pd(mnt)(2)(2-) and Pt(mnt)(2)(2-), respectively, while blue shift by 28, 44, 25 nm for d(10) metal complexes Zn(mnt)(2)(2-), Cd(mnt)(2)(2-) and Hg(mnt)(2)(2-), respectively. The calculated results reproduced the experimental data with the deviations less than 5% for Ni-S stretching vibrational frequencies and less than 3% for other vibrational modes.
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Affiliation(s)
- Hu Zhou
- College of Chemistry and Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, PR China
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14
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Syntheses, structures and magnetic properties of three new ion-pair complexes containing transition metal bis(malconitriledithiolate) anion and radical cations. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.01.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Affiliation(s)
- Xue-Bin Wang
- Department of Physics, Washington State University, Richland, Washington 99354, and Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352;
| | - Lai-Sheng Wang
- Department of Physics, Washington State University, Richland, Washington 99354, and Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352;
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Wang XB, Sergeeva AP, Yang J, Xing XP, Boldyrev AI, Wang LS. Photoelectron Spectroscopy of Cold Hydrated Sulfate Clusters, SO42−(H2O)n (n = 4−7): Temperature-Dependent Isomer Populations. J Phys Chem A 2009; 113:5567-76. [DOI: 10.1021/jp900682g] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Xue-Bin Wang
- Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99354, Chemical & Materials Sciences Division, Pacific Northwest National Laboratory, MS K8-88, P.O. Box 999, Richland, Washington 99352, and Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322
| | - Alina P. Sergeeva
- Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99354, Chemical & Materials Sciences Division, Pacific Northwest National Laboratory, MS K8-88, P.O. Box 999, Richland, Washington 99352, and Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322
| | - Jie Yang
- Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99354, Chemical & Materials Sciences Division, Pacific Northwest National Laboratory, MS K8-88, P.O. Box 999, Richland, Washington 99352, and Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322
| | - Xiao-Peng Xing
- Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99354, Chemical & Materials Sciences Division, Pacific Northwest National Laboratory, MS K8-88, P.O. Box 999, Richland, Washington 99352, and Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322
| | - Alexander I. Boldyrev
- Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99354, Chemical & Materials Sciences Division, Pacific Northwest National Laboratory, MS K8-88, P.O. Box 999, Richland, Washington 99352, and Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322
| | - Lai-Sheng Wang
- Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99354, Chemical & Materials Sciences Division, Pacific Northwest National Laboratory, MS K8-88, P.O. Box 999, Richland, Washington 99352, and Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322
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17
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Jia WG, Huang YB, Lin YJ, Wang GL, Jin GX. Nickel Complexes and Cobalt Coordination Polymers with Organochalcogen (S, Se) Ligands Bearing anN-Methylimidazole Moiety: Syntheses, Structures, and Properties. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200800559] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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18
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Wang XB, Wang LS. Development of a low-temperature photoelectron spectroscopy instrument using an electrospray ion source and a cryogenically controlled ion trap. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2008; 79:073108. [PMID: 18681692 DOI: 10.1063/1.2957610] [Citation(s) in RCA: 234] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The ability to control ion temperatures is critical for gas phase spectroscopy and has been a challenge in chemical physics. A low-temperature photoelectron spectroscopy instrument has been developed for the investigation of complex anions in the gas phase, including multiply charged anions, solvated species, and biological molecules. The new apparatus consists of an electrospray ionization source, a three dimensional (3D) Paul trap for ion accumulation and cooling, a time-of-flight mass spectrometer, and a magnetic-bottle photoelectron analyzer. A key feature of the new instrument is the capability to cool and tune ion temperatures from 10 to 350 K in the 3D Paul trap, which is attached to the cold head of a closed cycle helium refrigerator. Ion cooling is accomplished in the Paul trap via collisions with a background gas and has been demonstrated by observation of complete elimination of vibrational hot bands in photoelectron spectra of various anions ranging from small molecules to complex species. Further evidence of ion cooling is shown by the observation of H2-physisorbed anions at low temperatures. Cold anions result in better resolved photoelectron spectra due to the elimination of vibrational hot bands and yield more accurate energetic and spectroscopic information. Temperature-dependent studies are made possible for weakly bonded molecular and solvated clusters, allowing thermodynamic information to be obtained.
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Affiliation(s)
- Xue-Bin Wang
- Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99354, USA and Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, MS 8-88, P.O. Box 999, Richland, Washington 99352, USA
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Makedonas C, Mitsopoulou CA. Tuning the properties of M(diimine)(dithiolate) complexes – The role of the metal and solvent effect. A combined experimental, DFT and TDDFT study. Inorganica Chim Acta 2007. [DOI: 10.1016/j.ica.2007.05.045] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Synthesis and characterization of half-sandwich Ir and Ru complexes containing Mnt ligand (Mnt=maleonitriledithiolate). INORG CHEM COMMUN 2007. [DOI: 10.1016/j.inoche.2007.07.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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Waters T, Wang XB, Wang LS. Electrospray ionization photoelectron spectroscopy: Probing the electronic structure of inorganic metal complexes in the gas-phase. Coord Chem Rev 2007. [DOI: 10.1016/j.ccr.2006.04.010] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Wang XB, Wang YL, Woo HK, Li J, Wu GS, Wang LS. Free tetra- and hexa-coordinated platinum-cyanide dianions, and : A combined photodetachment photoelectron spectroscopic and theoretical study. Chem Phys 2006. [DOI: 10.1016/j.chemphys.2006.07.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Waters T, Wang XB, Woo HK, Wang LS. Photoelectron Spectroscopy of the Bis(dithiolene) Anions [M(mnt)2]n- (M = Fe − Zn; n = 1, 2): Changes in Electronic Structure with Variation of Metal Center and with Oxidation. Inorg Chem 2006; 45:5841-51. [PMID: 16841989 DOI: 10.1021/ic060255z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A detailed understanding of the electronic structures of transition metal bis(dithiolene) centers is important in the context of their interesting redox, magnetic, and optical properties. The electronic structures of the series [M(mnt)2]n- (M = Fe - Zn; mnt = 1,2-S2C2(CN)2; n = 1, 2) were examined by a combination of photodetachment photoelectron spectroscopy and density functional theory calculations, providing insights into changes in electronic structure with variation of the metal center and with oxidation. Significant changes were observed for the dianions [M(mnt)2]2- due to stabilization of the metal 3d levels from Fe to Zn and the transition from square-planar to tetrahedral coordination about the metal center (Fe-Ni, D(2h) --> Cu D2 --> Zn, D(2d). Changes with oxidation from [M(mnt)2]2- to [M(mnt)2]1- were largely dependent on the nature of the redox-active orbital in the couple [M(mnt)2](2-/1-). In particular, the first detachment feature for [Fe(mnt)2]2- originated from a metal-based orbital (Fe(II) --> Fe(III)) while that for [Fe(mnt)2]1- originated from a ligand-based orbital, a consequence of stabilization of Fe 3d levels in the latter. In contrast, the first detachment feature for both of [Ni(mnt)2]2- and [Ni(mnt)2]1- originated from the same ligand-based orbital in both cases, a result of occupied Ni 3d levels being stabilized relative those of Fe 3d and occurring below the highest energy occupied ligand-based orbital for both of [Ni(mnt)2]2- and [Ni(mnt)2]1- . The combined data illustrate the subtle interplay between metal- and ligand-based redox chemistry in these species and demonstrate changes in their electronic structures with variation of metal center, oxidation, and coordination geometry.
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Affiliation(s)
- Tom Waters
- Department of Physics, Washington State University, 2710 University Drive, Richland, WA 99354, USA
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