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Defant A, Mancini I. A Comprehensive Computational NMR Analysis of Organic Polyarsenicals including the Marine Sponge-Derived Arsenicins A-D and Their Synthetic Analogs. Mar Drugs 2023; 21:511. [PMID: 37888446 PMCID: PMC10608599 DOI: 10.3390/md21100511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/28/2023] Open
Abstract
The adamantane structure of arsenicin A and nor-adamantane structures of arsenicins B-D have gained attention as unique natural polyarsenicals, as well as hits showing promising anticancer activity. The purpose of this study is to apply the predictive power of NMR DFT calculations in order to identify a valid tool to be used in the structural elucidation of similar molecules. 1H- and 13C-NMR chemical shifts of twelve natural and synthetic polyarsenical analogs were calculated and validated by comparison with experimental data acquired in CDCl3 solutions, in regard to mean absolute error (MAE) values under various combinations of two methods (GIAO and CSGT), four functionals and five basis sets, also considering relativistic effects. The best computational approaches are highlighted for predicting the chemical shifts of 1H and 13C nuclei and J(1H,1H) coupling constants in the series of O- and S-polyarsenicals. This comprehensive analysis contributes to making NMR spectroscopy appealing for the structural elucidation of such molecules, contrary to the first structural elucidation of natural arsenicin A, in which the experimental NMR analysis was limited by the poor presence of proton and carbon atoms in its structure and by the shortage of reference data.
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Affiliation(s)
- Andrea Defant
- Laboratory of Bioorganic Chemistry, Department of Physics, University of Trento, Via Sommarive 14, I-38123 Trento, Italy
| | - Ines Mancini
- Laboratory of Bioorganic Chemistry, Department of Physics, University of Trento, Via Sommarive 14, I-38123 Trento, Italy
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2
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Krivdin LB. Computational 1 H and 13 C NMR in structural and stereochemical studies. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2022; 60:733-828. [PMID: 35182410 DOI: 10.1002/mrc.5260] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 02/14/2022] [Accepted: 02/16/2022] [Indexed: 06/14/2023]
Abstract
Present review outlines the advances and perspectives of computational 1 H and 13 C NMR applied to the stereochemical studies of inorganic, organic, and bioorganic compounds, involving in particular natural products, carbohydrates, and carbonium ions. The first part of the review briefly outlines theoretical background of the modern computational methods applied to the calculation of chemical shifts and spin-spin coupling constants at the DFT and the non-empirical levels. The second part of the review deals with the achievements of the computational 1 H and 13 C NMR in the stereochemical investigation of a variety of inorganic, organic, and bioorganic compounds, providing in an abridged form the material partly discussed by the author in a series of parent reviews. Major attention is focused herewith on the publications of the recent years, which were not reviewed elsewhere.
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Affiliation(s)
- Leonid B Krivdin
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, Irkutsk, Russia
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3
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Krivdin LB. Computational protocols for calculating 13C NMR chemical shifts. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2019; 112-113:103-156. [PMID: 31481156 DOI: 10.1016/j.pnmrs.2019.05.004] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 05/19/2019] [Accepted: 05/20/2019] [Indexed: 06/10/2023]
Abstract
The most recent results dealing with the computation of 13C NMR chemical shifts in chemistry (small molecules, saturated, unsaturated and aromatic compounds, heterocycles, functional derivatives, coordination complexes, carbocations, and natural products) are reviewed, paying special attention to theoretical background and accuracy, the latter involving solvent effects, vibrational corrections, and relativistic effects.
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Affiliation(s)
- Leonid B Krivdin
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, Favorsky St. 1, 664033 Irkutsk, Russia.
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4
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Bai Y, Lv X, Liu Z, Guo T, Li J. Synthesis, spectral and DFT study of 5-butyl-3,9-difluoro-5 H -benzimidazo[1,2- a ]benzimidazole. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.08.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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5
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Tang Y, Dharavath S, Imler GH, Parrish DA, Shreeve JM. Nitramino‐ and Dinitromethyl‐Substituted 1,2,4‐Triazole Derivatives as High‐Performance Energetic Materials. Chemistry 2017; 23:9185-9191. [DOI: 10.1002/chem.201701407] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Yongxing Tang
- Department of Chemistry University of Idaho Moscow Idaho 83844-2343 USA
| | | | - Gregory H. Imler
- Naval Research Laboratory 4555 Overlook Avenue Washington, D.C. 20375 USA
| | - Damon A. Parrish
- Naval Research Laboratory 4555 Overlook Avenue Washington, D.C. 20375 USA
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6
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Xin D, Sader CA, Fischer U, Wagner K, Jones PJ, Xing M, Fandrick KR, Gonnella NC. Systematic investigation of DFT-GIAO 15N NMR chemical shift prediction using B3LYP/cc-pVDZ: application to studies of regioisomers, tautomers, protonation states and N-oxides. Org Biomol Chem 2017; 15:928-936. [PMID: 28050610 DOI: 10.1039/c6ob02450e] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The calculation of 15N NMR chemical shifts has been systematically investigated using density functional theory-gauge including/invariant atomic orbitals (DFT-GIAO) approximation at the B3LYP/cc-pVDZ level of theory. General linear regression terms for 15N chemical shift predictions were calculated for nitromethane and liquid ammonia references in DMSO. Both aliphatic and aromatic nitrogens were studied using a diverse set of molecular scaffolds. Statistical error analysis between experiment and prediction revealed that, with the exception of primary amines, 95% of linear scaled N-15 chemical shifts are within a ±9.56 ppm range. Comparison of the 15N calculated isotropic chemical shifts with the experimentally determined chemical shifts provided accurate assignment of the correct structure in cases where experimental data was ambiguous or inconclusive. Application of 15N prediction proved to be highly effective in identifying the correct regio-isomer, oxidation state, protonation state and preferred tautomer in solution.
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Affiliation(s)
- Dongyue Xin
- Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut, USA.
| | - Charles Avery Sader
- Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut, USA.
| | - Udo Fischer
- Boehringer Ingelheim Pharma GmbH & Co.KG, Germany
| | - Klaus Wagner
- Boehringer Ingelheim Pharma GmbH & Co.KG, Germany
| | - Paul-James Jones
- Information Technology, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut, USA
| | - Minli Xing
- Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut, USA.
| | - Keith R Fandrick
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut, USA
| | - Nina C Gonnella
- Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut, USA.
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7
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Amini SK. A systematic investigation of cooperativity between two types of hydrogen bonding in the nonlinear clusters of an aromatic molecule: Pyrazole. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2014.03.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Bai Y, Du J, Weng X. Synthesis, characterization, optical properties and theoretical calculations of 6-fluoro coumarin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 126:14-20. [PMID: 24568846 DOI: 10.1016/j.saa.2014.01.123] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2013] [Revised: 01/17/2014] [Accepted: 01/26/2014] [Indexed: 06/03/2023]
Abstract
6-Fluoro coumarin is synthesized and characterized by (1)H NMR and (13)C NMR. The optical properties of the title compound are investigated by UV-vis absorption and fluorescence emission spectra, the results show the title compound can absorb UV-vis light at 319, 269 and 215nm, moreover it exhibits blue-purple fluorescence emission at 416nm. Theoretical studies on molecular structure, infrared spectra (IR), nuclear magnetic resonance ((1)H NMR, (13)C NMR) chemical shifts, UV-vis absorption and fluorescence emission of the synthesized compound have been worked out. Most chemical calculations were performed by density functional theory (DFT) method at the B3LYP/6-311G(d,p) level (NMR at B3LYP/Aug-CC-Pvdz level) using Gaussian 09 program. The compared results reveal that the scaled theoretical vibrational frequencies are in good accordance with the observed spectra; computational chemical shifts are consistent with the experimental values in most parts, except for some minor deviations; the UV-vis absorption calculated matches the experimental one very well, and the fluorescence emission spectrum is in good agreement with the experimental one when the solute-solvent hydrogen-bonding interaction is considered. These good coincidences prove that the computational methods selected can be used to predict these properties of other similar materials where it is difficult to arrive at experimental results.
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Affiliation(s)
- Yihui Bai
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, PR China.
| | - Jinyan Du
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, PR China
| | - Xuexiang Weng
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, PR China.
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Zhang J, Shreeve JM. 3,3′-Dinitroamino-4,4′-azoxyfurazan and Its Derivatives: An Assembly of Diverse N–O Building Blocks for High-Performance Energetic Materials. J Am Chem Soc 2014; 136:4437-45. [DOI: 10.1021/ja501176q] [Citation(s) in RCA: 296] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiaheng Zhang
- Department of Chemistry, University of Idaho, Moscow, Idaho 83844-2343, United States
| | - Jean’ne M. Shreeve
- Department of Chemistry, University of Idaho, Moscow, Idaho 83844-2343, United States
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10
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Andrews KG, Spivey AC. Improving the Accuracy of Computed 13C NMR Shift Predictions by Specific Environment Error Correction: Fragment Referencing. J Org Chem 2013; 78:11302-17. [DOI: 10.1021/jo401833b] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Keith G. Andrews
- Department
of Chemistry, Imperial College, London SW7 2AZ, United Kingdom
| | - Alan C. Spivey
- Department
of Chemistry, Imperial College, London SW7 2AZ, United Kingdom
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11
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Chapyshev SV, Ushakov EN, Chernyak AV. 15N NMR spectra and reactivity of 2,4,6-triazidopyridines, 2,4,6-triazidopyrimidine and 2,4,6-triazido-s-triazine. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2013; 51:562-568. [PMID: 23877844 DOI: 10.1002/mrc.3987] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 06/11/2013] [Accepted: 06/25/2013] [Indexed: 06/02/2023]
Abstract
2,4,6-Triazido-s-triazine, 2,4,6-triazidopyrimidine and six different 2,4,6-triazidopyridines were studied by (15)N NMR spectroscopy. The assignment of signals in the spectra was performed using the gauge-independent atomic orbital (GIAO)-Tao-Perdew-Staroverov-Scuseria exchange-correlation functional (TPSS)h/6-311+G(d,p) calculations on the M06-2X/6-311+G(d,p) optimized molecular geometries. The Truhlar and coworkers' continuum solvation model called SMD was applied to treat solvent effects. With this approach, the root mean square error in estimations of the (15)N chemical shifts for the azido groups was just 1.9 ppm. It was shown that the different reactivity of the α- and γ-azido groups in pyridines correlates well with the chemical shifts of the Nα signals of these groups. Of two nonequivalent azido groups of azines, the azido group with the most shielded Nα signal is the most electron-deficient and reactive toward electron-rich reagents. By contrast, the azido group of azines with the most deshielded Nα signal is the most reactive toward electron-poor reagents.
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Affiliation(s)
- Sergei V Chapyshev
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432, Chernogolovka, Moscow Region, Russian Federation.
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12
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Aridoss G, Zhao C, Borosky GL, Laali KK. Experimental and GIAO 15N NMR Study of Substituent Effects in 1H-Tetrazoles. J Org Chem 2012; 77:4152-5. [DOI: 10.1021/jo300242s] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gopalakrishnan Aridoss
- Department of Chemistry, University of North Florida, 1 UNF Drive, Jacksonville,
Florida 32224, United States
| | - Chunqing Zhao
- Department of Chemistry, University of North Florida, 1 UNF Drive, Jacksonville,
Florida 32224, United States
| | - Gabriela L. Borosky
- Departamento de Matemática
y Física, INFIQC, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria,
Córdoba 5000, Argentina
| | - Kenneth K. Laali
- Department of Chemistry, University of North Florida, 1 UNF Drive, Jacksonville,
Florida 32224, United States
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