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Tang P, Zhang J, Li X, Yang F, Zhao Q, Ma J, Hu Z, Sun H, Wang XB, Sun Z, Yang Y. Cryogenic Photoelectron Spectroscopic and Theoretical Study of the Electronic and Geometric Structures of Undercoordinated Osmium Chloride Anions OsCl n- ( n = 3-5). J Phys Chem A 2024; 128:5500-5507. [PMID: 38968614 DOI: 10.1021/acs.jpca.4c01713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/07/2024]
Abstract
A series of anionic transition metal halides, OsCln- (n = 3-5), have been investigated using a newly developed, home-constructed, cryogenic anion cluster photoelectron spectroscopy. The target anionic species are generated through collision-induced dissociation in a two-stage ion funnel. The measured vertical detachment energies (VDEs) are 3.48, 4.54, and 4.81 eV for n = 3, 4, and 5, respectively. Density functional theory calculations at the B3LYP-D3(BJ)//aug-cc-pVTZ(-pp) level predict the lowest energy structures of the atomic form of OsCln- (n = 3-5) to be a quintet triangle, quartet square, and quintet square-based pyramid, respectively. The CCSD(T)-calculated VDEs and corresponding adiabatic detachment energies agree well with our experimental measurements. Analysis of the corresponding frontier molecular orbitals and charge density differences suggests that the d-orbitals of the transition metal Os play a primary role in the single-photon detachment processes, and the detached electrons originating from different molecular orbitals are distinguishable.
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Affiliation(s)
- Peng Tang
- State Key Laboratory of Precision Spectroscopy, and School of Physics and Electron Science, East China Normal University, Shanghai 200241, China
| | - Jian Zhang
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
| | - Xueying Li
- State Key Laboratory of Precision Spectroscopy, and School of Physics and Electron Science, East China Normal University, Shanghai 200241, China
| | - Fan Yang
- State Key Laboratory of Precision Spectroscopy, and School of Physics and Electron Science, East China Normal University, Shanghai 200241, China
| | - Qixu Zhao
- State Key Laboratory of Precision Spectroscopy, and School of Physics and Electron Science, East China Normal University, Shanghai 200241, China
| | - Junyang Ma
- State Key Laboratory of Precision Spectroscopy, and School of Physics and Electron Science, East China Normal University, Shanghai 200241, China
| | - Zhubin Hu
- State Key Laboratory of Precision Spectroscopy, and School of Physics and Electron Science, East China Normal University, Shanghai 200241, China
| | - Haitao Sun
- State Key Laboratory of Precision Spectroscopy, and School of Physics and Electron Science, East China Normal University, Shanghai 200241, China
| | - Xue-Bin Wang
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Zhenrong Sun
- State Key Laboratory of Precision Spectroscopy, and School of Physics and Electron Science, East China Normal University, Shanghai 200241, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Yan Yang
- State Key Laboratory of Precision Spectroscopy, and School of Physics and Electron Science, East China Normal University, Shanghai 200241, China
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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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Ghosh A, Datta I, Ghatak S, Mahali K, Bhattacharyya SS, Saha B. Picolinic Acid Promoted Permanganate Oxidation of D-Mannitol in Micellar Medium. TENSIDE SURFACT DET 2016. [DOI: 10.3139/113.110440] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
AbstractKinetics of permanganate oxidation of D-mannitol have been investigated spectrophotometrically under pseudo-first-order conditions in aqueous acidic media at 30 °C. The spectral analysis of hydrazone derivative of the product indicates the product to be an aldehyde. The observed rate constant value was found to be relatively slow in the uncatalyzed path, which increases by the presence of four isomeric promoters: 2-picolinic acid (2-PA), 4-picolinic acid (4-PA), 2,3-dipicolinic acid (2,3-diPA) and 2,6-dipicolinic acid (2,6-diPA). The catalytic effect of sodium dodecylbenzene sulfonate (SDBS) surfactant on the permanganate oxidation of D-mannitol has been also studied in the presence of the promoters. The critical micelle concentration (CMC) of SDBS alone and in presence of D-mannitol was determined by conductometry and spectrophotometry. The aggregation and morphological changes during reaction were studied by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The variation of the reaction rates for the different promoters in the presence and absence of SDBS micellar catalyst is discussed qualitatively in the terms of partitioning nature of substrate, charge of surfactant and reactants. 2,3-diPA in association with SDBS as micellar catalyst accelerated the reaction velocity compared to the uncatalyzed path.
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Affiliation(s)
- Aniruddha Ghosh
- 1Homogeneous Catalysis Laboratory, Department of Chemistry, The University of Burdwan, Golapbag, Burdwan, 713104, WB, India
| | - Indukamal Datta
- 1Homogeneous Catalysis Laboratory, Department of Chemistry, The University of Burdwan, Golapbag, Burdwan, 713104, WB, India
| | - Somasree Ghatak
- 1Homogeneous Catalysis Laboratory, Department of Chemistry, The University of Burdwan, Golapbag, Burdwan, 713104, WB, India
| | - Kalachand Mahali
- 2Department of Chemistry, University of Kalyani, Kalyani, 741235, WB, India
| | - Subhendu Sekhar Bhattacharyya
- 1Homogeneous Catalysis Laboratory, Department of Chemistry, The University of Burdwan, Golapbag, Burdwan, 713104, WB, India
| | - Bidyut Saha
- 1Homogeneous Catalysis Laboratory, Department of Chemistry, The University of Burdwan, Golapbag, Burdwan, 713104, WB, India
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