1
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Stevens MJ, Rempe SLB. Binding of carboxylate and water to monovalent cations. Phys Chem Chem Phys 2023; 25:29881-29893. [PMID: 37889481 DOI: 10.1039/d3cp04200f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
The interactions of carboxylate anions with water and cations are important for a wide variety of systems, both biological and synthetic. To gain insight on properties of the local complexes, we apply density functional theory, to treat the complex electrostatic interactions, and investigate mixtures with varied numbers of carboxylate anions (acetate) and waters binding to monovalent cations, Li+, Na+ and K+. The optimal structure with overall lowest free energy contains two acetates and two waters such that the cation is four-fold coordinated, similar to structures found earlier for pure water or pure carboxylate ligands. More generally, the complexes with two acetates have the lowest free energy. In transitioning from the overall optimal state, exchanging an acetate for water has a lower free energy barrier than exchanging water for an acetate. In most cases, the carboxylates are monodentate and in the first solvation shell. As water is added to the system, hydrogen bonding between waters and carboxylate O atoms further stabilizes monodentate structures. These structures, which have strong electrostatic interactions that involve hydrogen bonds of varying strength, are significantly polarized, with ChelpG partial charges that vary substantially as the bonding geometry varies. Overall, these results emphasize the increasing importance of water as a component of binding sites as the number of ligands increases, thus affecting the preferential solvation of specific metal ions and clarifying Hofmeister effects. Finally, structural analysis correlated with free energy analysis supports the idea that binding to more than the preferred number of carboxylates under architectural constraints are a key to ion transport.
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Affiliation(s)
- Mark J Stevens
- Center for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque, NM 87185, USA.
| | - Susan L B Rempe
- Center for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque, NM 87185, USA.
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2
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Cao W, Hu Z, Peng X, Sun H, Sun Z, Wang XB. Annihilating Actinic Photochemistry of the Pyruvate Anion by One and Two Water Molecules. J Am Chem Soc 2022; 144:19317-19325. [PMID: 36166618 DOI: 10.1021/jacs.2c06319] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Photochemical behaviors of pyruvic acid in multiple phases have been extensively studied, while those of its conjugate base, the pyruvate anion (CH3COCOO-, PA-) are less understood and remain contradictory in gaseous versus aqueous phases. Here in this article, we report a joint experimental and theoretical study combining cryogenic, wavelength-resolved negative ion photoelectron spectroscopy (NIPES) and high-level quantum chemical computations to investigate PA- actinic photochemistry and its dependence on microsolvation in the gas phase. PA-·nH2O (n = 0-5) clusters were generated and characterized, with their low-lying isomers identified. NIPES conducted at multiple wavelengths across the PA- actinic regime revealed the PA- photochemistry extremely sensitive to its hydration extent. While bare PA- anions exhibit active photoinduced dissociations that generate the acetyl (CH3CO-), methide (CH3-) anions, their corresponding radicals, and slow electrons, one single attached water molecule results in significant suppression with a subsequent second water being able to completely block all dissociation pathways, effectively annihilating all PA- photochemical reactivities. The underlying dissociation mechanisms of PA-·nH2O (n = 0-2) clusters are proposed involving nπ* excitation, dehydration, decarboxylation, and further CO loss. Since the photoexcited dihydrate does not have sufficient energy to overcome the full dehydration barrier before PA- could fragmentate, the PA- dissociation pathway is completely blocked, with the energy most likely released via loss of one water and internal electronic and vibrational relaxations. The insight unraveled in this work provides a much-needed critical link to connect the seemingly conflicting PA- actinic chemistry between the gas and condensed phases.
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Affiliation(s)
- Wenjin Cao
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Zhubin Hu
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
| | - Xiaogai Peng
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
| | - Haitao Sun
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China.,NYU-ECNU Center for Computational Chemistry at NYU Shanghai, Shanghai 200062, China.,Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Zhenrong Sun
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China.,Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Xue-Bin Wang
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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3
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Bin Mohd Yusof MS, Siow JX, Yang N, Chan WX, Loh ZH. Spectroscopic observation and ultrafast coherent vibrational dynamics of the aqueous phenylalanine radical. Phys Chem Chem Phys 2022; 24:2800-2812. [PMID: 35048090 DOI: 10.1039/d1cp04326a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The phenylalanine radical (Phe˙) has been proposed to mediate biological electron transport (ET) and exhibit long-lived electronic coherences following attosecond photoionization. However, the coupling of ultrafast structural reorganization to the oxidation/ionization of biomolecules such as phenylalanine remains unexplored. Moreover, studies of ET involving Phe˙ are hindered by its hitherto unobserved electronic spectrum. Here, we report the spectroscopic observation and coherent vibrational dynamics of aqueous Phe˙, prepared by sub-6 fs photodetachment of phenylalaninate anions. Sub-picosecond transient absorption spectroscopy reveals the ultraviolet absorption signature of Phe˙. Ultrafast structural reorganization drives coherent vibrational motion involving nine fundamental frequencies and one overtone. DFT calculations rationalize the absence of the decarboxylation reaction, a photodegradation pathway previously identified for Phe˙. Our findings guide the interpretation of future attosecond experiments aimed at elucidating coherent electron motion in photoionized aqueous biomolecules and pave way for the spectroscopic identification of Phe˙ in studies of biological ET.
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Affiliation(s)
- Muhammad Shafiq Bin Mohd Yusof
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore.
| | - Jing Xuan Siow
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore.
| | - Ningchen Yang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore.
| | - Wei Xin Chan
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore.
| | - Zhi-Heng Loh
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore.
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4
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DeVine JA, Debnath S, Li YK, McCaslin LM, Schöllkopf W, Neumark DM, Asmis KR. Infrared photodissociation spectroscopy of D2-tagged CH3CO2−(H2O)0−2 anions. Mol Phys 2020. [DOI: 10.1080/00268976.2020.1749953] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | - Sreekanta Debnath
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Leipzig, Germany
- Fritz-Haber-Institut der Max-Plank-Gesellschaft, Berlin, Germany
| | - Ya-Ke Li
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Leipzig, Germany
- Fritz-Haber-Institut der Max-Plank-Gesellschaft, Berlin, Germany
| | - Laura M. McCaslin
- Institute of Chemistry and the Fritz Haber Center for Molecular Dynamics, The Hebrew University, Jerusalem, Israel
- Department of Chemistry, University of California, Irvine, CA, USA
| | | | - Daniel M. Neumark
- Department of Chemistry, University of California, Berkeley, CA, USA
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Knut R. Asmis
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Leipzig, Germany
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5
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Yuan Q, Kong XT, Hou GL, Jiang L, Wang XB. Photoelectron spectroscopic and computational studies of [EDTA·M(iii)]− complexes (M = H3, Al, Sc, V–Co). Phys Chem Chem Phys 2018; 20:19458-19469. [DOI: 10.1039/c8cp01548a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photoelectron spectroscopic and computational studies of [EDTA·M(iii)]− complexes reveal their redox chemistry and specific metal bindings.
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Affiliation(s)
- Qinqin Yuan
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Xiang-Tao Kong
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Gao-Lei Hou
- Physical Sciences Division
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Ling Jiang
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Xue-Bin Wang
- Physical Sciences Division
- Pacific Northwest National Laboratory
- Richland
- USA
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6
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Hou GL, Zhang J, Valiev M, Wang XB. Structures and energetics of hydrated deprotonated cis-pinonic acid anion clusters and their atmospheric relevance. Phys Chem Chem Phys 2017; 19:10676-10684. [DOI: 10.1039/c6cp08834a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pinonic acid, a C10-monocarboxylic acid with a hydrophilic –CO2H group and a hydrophobic hydrocarbon backbone, is a key intermediate oxidation product of α-pinene – an important monoterpene compound in biogenic emission processes that influences the atmosphere.
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Affiliation(s)
- Gao-Lei Hou
- Pacific Northwest National Laboratory
- 902 Battelle Boulevard
- P. O. Box 999
- MS K8-88, Richland
- USA
| | - Jun Zhang
- Department of Chemistry
- University of Illinois at Urbana-Champaign
- Urbana
- USA
| | - Marat Valiev
- Pacific Northwest National Laboratory
- 902 Battelle Boulevard
- P. O. Box 999
- MS K8-88, Richland
- USA
| | - Xue-Bin Wang
- Pacific Northwest National Laboratory
- 902 Battelle Boulevard
- P. O. Box 999
- MS K8-88, Richland
- USA
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7
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Beletskiy EV, Wang XB, Kass SR. Anion Binding of One-, Two-, and Three-Armed Thiourea Receptors Examined via Photoelectron Spectroscopy and Quantum Computations. J Phys Chem A 2016; 120:8309-8316. [DOI: 10.1021/acs.jpca.6b08438] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Evgeny V. Beletskiy
- Department
of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Xue-Bin Wang
- Physical
Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, MS K8-88, Richland, Washington 99352, United States
| | - Steven R. Kass
- Department
of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
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8
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Zhang WJ, Hou GL, Wang P, Xu HG, Feng G, Xu XL, Zheng WJ. Microsolvation of sodium acetate in water: Anion photoelectron spectroscopy and ab initio calculations. J Chem Phys 2015; 143:054302. [DOI: 10.1063/1.4927668] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Wen-Jing Zhang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Gao-Lei Hou
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Peng Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Hong-Guang Xu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Gang Feng
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xi-Ling Xu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Wei-Jun Zheng
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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9
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Koga Y. Two-dimensional characterization of the effect of solute on H2O: A thermodynamic probing methodology. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2014.09.048] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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10
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Kumar A, Rani A, Venkatesu P, Kumar A. Quantitative evaluation of the ability of ionic liquids to offset the cold-induced unfolding of proteins. Phys Chem Chem Phys 2014; 16:15806-10. [DOI: 10.1039/c4cp01001a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Koga Y. 1-Propanol probing methodology: two-dimensional characterization of the effect of solute on H2O. Phys Chem Chem Phys 2013; 15:14548-65. [DOI: 10.1039/c3cp51650d] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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12
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Kondo T, Miyazaki Y, Inaba A, Koga Y. Effects of Carboxylate Anions on the Molecular Organization of H2O as Probed by 1-Propanol. J Phys Chem B 2012; 116:3571-7. [DOI: 10.1021/jp2118407] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Takemi Kondo
- Research Center for Structural Thermodynamics, Graduate
School of Sciences, Osaka University, Toyonaka,
Osaka 560-0043 Japan
| | - Yuji Miyazaki
- Research Center for Structural Thermodynamics, Graduate
School of Sciences, Osaka University, Toyonaka,
Osaka 560-0043 Japan
| | - Akira Inaba
- Research Center for Structural Thermodynamics, Graduate
School of Sciences, Osaka University, Toyonaka,
Osaka 560-0043 Japan
| | - Yoshikata Koga
- Department of Chemistry, The University of British Columbia, Vancouver, BC Canada V6T 1Z1
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13
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Kopylovich MN, Kirillov AM, Tronova EA, Haukka M, Kukushkin VY, Pombeiro AJL. 1,3,5-Triazapentadiene Nickel(II) Complexes Derived from a Ketoxime-Mediated Single-Pot Transformation of Nitriles. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000019] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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14
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Wang XB, Kowalski K, Wang LS, Xantheas SS. Stepwise hydration of the cyanide anion: A temperature-controlled photoelectron spectroscopy and ab initio computational study of CN−(H2O)n, n=2–5. J Chem Phys 2010; 132:124306. [DOI: 10.1063/1.3360306] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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15
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Xing XP, Wang XB, Wang LS. Photoelectron Imaging of Doubly Charged Anions, −O2C(CH2)nCO2− (n = 2−8): Observation of Near 0 eV Electrons Due to Secondary Dissociative Autodetachment. J Phys Chem A 2010; 114:4524-30. [DOI: 10.1021/jp1011523] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- 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, Richland, Washington 99352, and Department of Chemistry, Brown University, Providence, Rhode Island 02912
| | - 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, Richland, Washington 99352, and Department of Chemistry, Brown University, Providence, Rhode Island 02912
| | - 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, Richland, Washington 99352, and Department of Chemistry, Brown University, Providence, Rhode Island 02912
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16
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Tafipolsky M, Schmid R. A Consistent Force Field for the Carboxylate Group. J Chem Theory Comput 2009; 5:2822-34. [DOI: 10.1021/ct900304q] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Maxim Tafipolsky
- Lehrstuhl für Anorganische Chemie 2, Organometallics and Materials Chemistry, Ruhr-Universität Bochum, Universitätsstr. 150, D-44780 Bochum, Germany
| | - Rochus Schmid
- Lehrstuhl für Anorganische Chemie 2, Organometallics and Materials Chemistry, Ruhr-Universität Bochum, Universitätsstr. 150, D-44780 Bochum, Germany
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