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Lines AM, Barpaga D, Zheng RF, Collett JR, Heldebrant DJ, Bryan SA. In Situ Raman Methodology for Online Analysis of CO 2 and H 2O Loadings in a Water-Lean Solvent for CO 2 Capture. Anal Chem 2023; 95:15566-15576. [PMID: 37787757 DOI: 10.1021/acs.analchem.3c02281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
Carbon capture represents a key pathway to meeting climate change mitigation goals. Powerful next-generation solvent-based capture processes are under development by many researchers, but optimization and testing would be significantly aided by integrating in situ monitoring capability. Further, real-time water analysis in water-lean solvents offers the potential to maintain their water balance in operation. To explore data acquisition techniques in depth for this purpose, Raman spectra of CO2, H2O, and a single-component water-lean solvent, N-(2-ethoxyethyl)-3-morpholinopropan-1-amine (2-EEMPA) were collected at different CO2 and H2O concentrations using an in situ Raman cell. The quantification of CO2 and H2O loadings in 2-EEMPA was done by principal component regression and partial least squares methods with analysis of uncertainties. We conclude with discussions on how this simultaneous online analysis method to quantify CO2 and H2O loadings can be an important tool to enable the optimal efficiency of water-lean CO2 solvents while also maintaining the critical water balance under operating conditions relevant to post-combustion CO2 capture.
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Affiliation(s)
- Amanda M Lines
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
- Washington State University, Pullman, Washington 99164, United States
| | - Dushyant Barpaga
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Richard F Zheng
- STARS Technology Corporation, Richland, Washington 99354, United States
| | - James R Collett
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - David J Heldebrant
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
- Washington State University, Pullman, Washington 99164, United States
| | - Samuel A Bryan
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
- Washington State University, Pullman, Washington 99164, United States
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Single Crystal XRD and DFT investigation of 1,5-dimethyl-4-[(2-oxo-1,2-diphenylethylidene) amino]-2-phenyl-1,2-dihydro-3H-pyrazol-3-one. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Devi KS, Subramani P, Sundaraganesan N, Jeeva M, Pradeepa SJ, Karthikeyan B. Synthesis, spectra, electronic structure, molecular docking and cytotoxicity investigation on 2-(piperidin-1-ylmethyl)-isoindoline-1,3-dione – A Mannich base system. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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A combined experimental and theoretical analysis of the solid-state supramolecular self-assembly of N-(2,4-dichlorophenyl)-1-naphthamide: Synthesis, anticholinesterase potential and molecular docking analysis. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.07.077] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Czerniak K, Biedziak A, Krawczyk K, Pernak J. Synthesis and properties of gallate ionic liquids. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Theoretical and vibrational study of N-(3-chloro-4-fluoro-phenyl)-7-methoxy-6-(3-morpholin-4-ylpropoxy)-quinazolin-4-amine (gefitinib). J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.07.045] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Park S, Kang H, Lim D, Lee JW, Seo Y, Lee H. Thermodynamic inhibition of 4-methylmorpholine while forming sH hydrate with methane. Chem Eng Sci 2015. [DOI: 10.1016/j.ces.2015.08.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Suresh M, Syed Ali Padusha M, Govindarasu K, Kavitha E. Synthesis, structural and spectral analysis of 1-(pyrazin-2-yl) piperidin-2-ol by density functional theory. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 138:271-282. [PMID: 25498824 DOI: 10.1016/j.saa.2014.11.063] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 10/24/2014] [Accepted: 11/20/2014] [Indexed: 06/04/2023]
Abstract
The organic compound 1-(pyrazin-2-yl) piperidin-2-ol (abbreviated as PPOL) has been synthesized and characterized by IR, Raman, (1)H NMR and UV-Vis spectroscopy. The Fourier-transform Raman (3500-50cm(-1)) and infrared spectra (4000-400cm(-1)) were recorded in the solid state and interpreted by comparison with theoretical spectra derived from density functional theory (DFT) calculations. The optimized geometry, frequency and intensity of the vibrational bands of the compound was obtained by the density functional theory using 6-31G(d,p) basis set. In the optimized geometry results shows that geometry parameters are good agreement with XRD values. Stability of the molecule arising from hyper conjugative interactions, charge delocalization has been analyzed using natural bond orbital (NBO) analysis. In calculation of electronic absorption spectra, TD-DFT calculations were carried out in the both gas and solution phases. (1)H NMR chemical shifts were calculated by using the gauge-invariant atomic orbital (GIAO) method. (1)H NMR analysis is evident for O-H⋯O intermolecular interaction of the title molecule. The thermodynamic properties of the title compound have been calculated at different temperatures and the results reveal that the standard heat capacities (Cp,m), standard entropies (Sm) and standard enthalpy changes (Hm) increase with rise in temperature. In addition, HOMO and LUMO energies and the first-order hyperpolarizability have been computed.
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Affiliation(s)
- M Suresh
- PG & Research Department of Chemistry, Jamal Mohamed College, Tiruchirappalli 620 020, India.
| | - M Syed Ali Padusha
- PG & Research Department of Chemistry, Jamal Mohamed College, Tiruchirappalli 620 020, India.
| | - K Govindarasu
- Department of Physics (Engg.), Annamalai University, Annamalainagar 608 002, India
| | - E Kavitha
- Department of Physics (Engg.), Annamalai University, Annamalainagar 608 002, India
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Mahalakshmi G, Balachandran V. NBO, HOMO, LUMO analysis and vibrational spectra (FTIR and FT Raman) of 1-Amino 4-methylpiperazine using ab initio HF and DFT methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 135:321-334. [PMID: 25084238 DOI: 10.1016/j.saa.2014.06.157] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2014] [Revised: 06/17/2014] [Accepted: 06/30/2014] [Indexed: 06/03/2023]
Abstract
Experimental FTIR and FT-Raman spectroscopic analysis of 1-Amino-4-methylpiperazine (1A4MP) have been performed. A detailed quantum chemical calculations have been carried out using ab initio HF and density functional theory calculations (B3LYP) with 6-311+G(d,p) basis set. The atomic charges, electronic exchange interaction and charge delocalization of the molecule have been performed by natural bond orbital (NBO) analysis. Electron density distribution and frontier molecular orbitals (FMOs) have been constructed at B3LYP/6-311+G(d,p) level to understand the electronic properties. The charge density distribution and site of chemical reactivity of the molecule have been obtained by mapping electron density isosurface with electrostatic potential surfaces (ESP). The electronic properties, HOMO and LUMO energies were measured by time-dependent TD-DFT approach. The dipole moment (μ), polarizability (α), anisotropy polarizability (Δα) and hyperpolarizability (β) of the molecule have been reported.
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Affiliation(s)
- G Mahalakshmi
- Department of Physics, Karpagam University, Coimbatore 641021, India; Department of Physics, Government Arts College (Autonomous), Karur 639005, India
| | - V Balachandran
- Research Department of Physics, Arignar Anna Government Arts College, Musiri, Tiruchirapalli 621211, India.
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Mahalakshmi G, Balachandran V. Molecular structure, vibrational spectra (FTIR and FT Raman) and natural bond orbital analysis of 4-Aminomethylpiperidine: DFT study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 131:587-598. [PMID: 24853994 DOI: 10.1016/j.saa.2014.04.154] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Revised: 04/19/2014] [Accepted: 04/23/2014] [Indexed: 06/03/2023]
Abstract
The FT-IR and FT-Raman spectra of 4-Aminomethylpiperidine have been recorded using Perkin Elmer Spectrophotometer and Nexus 670 spectrophotometer. The equilibrium geometrical parameters, various bonding features, the vibrational wavenumbers, the infrared intensities and the Raman scattering activities were calculated using Hartree-Fock and density functional method (B3LYP) with 6-311+G(d,p) basis set. Detailed interpretations of the vibrational spectra have been carried out with the aid of the normal coordinate analysis. The spectroscopic and natural bonds orbital (NBO) analysis confirms the occurrence of intra molecular hydrogen bonds, electron delocalization and steric effects. The changes in electron density in the global minimum and in the energy of hyperconjugative interactions of 4-Aminomethylpiperidine (4AMP) were calculated. The theoretical UV-Visible spectrum of the compound was computed in the region 200-400nm by time-dependent TD-DFT approach. The calculated HOMO and LUMO energies show that charge transfer occur within the molecule. The dipole moment (μ) and polarizability (α), anisotropy polarizability (Δα) and hyperpolarizability (β) of the molecule have been reported.
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Affiliation(s)
- G Mahalakshmi
- Department of Physics, Karpagam University, Coimbatore 641 021, India; Department of Physics, Government Arts College (Autonomous), Karur 639 005, India
| | - V Balachandran
- Research Department of Physics, Arignar Anna Government Arts College, Musiri, Tiruchirappalli 621 211, India.
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