1
|
Finko AV, Sokolov AI, Guk DA, Tafeenko VA, Moiseeva AA, Skvortsov DA, Stomakhin AA, Beloglazkin AA, Borisov RS, Pergushov VI, Melnikov MY, Zyk NV, Majouga AG, Beloglazkina EK. Copper coordination compounds with (5 Z,5 Z')-2,2'-(alkane-α,ω-diyldiselenyl)-bis-5-(2-pyridylmethylene)-3,5-dihydro-4 H-imidazol-4-ones. Comparison with sulfur analogue. RSC Adv 2022; 12:7133-7148. [PMID: 35424664 PMCID: PMC8982280 DOI: 10.1039/d1ra08995a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 02/11/2022] [Indexed: 12/20/2022] Open
Abstract
A series of new organic ligands (5Z,5Z')-2,2'-(alkane-α,ω-diyldiselenyl)-bis-5-(2-pyridylmethylene)-3,5-dihydro-4H-imidazol-4-ones (L) consisting of two 5-(2-pyridylmethylene)-3,5-dihydro-4H-imidazol-4-one units linked with polymethylene chains of various lengths (n = 2-10, where n is the number of CH2 units) have been synthesized. The reactions of these ligands with CuCl2·2H2O and CuClO4·6H2O gave Cu2+ or Cu1+ containing mono- and binuclear complexes with Cu2LCl x (x = 2-4) or CuL(ClO4) y (y = 1, 2) composition. It was shown that the agents reducing Cu2+ to Cu1+ in the course of complex formation can be both a ligand and an organic solvent in which the reaction is carried out. This fundamentally distinguishes the selenium-containing ligands L from their previously described sulfur analogs, which by themselves are not capable of reducing Cu2+ during complexation under the same conditions. A higher cytotoxicity and reasonable selectivity to cancer cell lines for synthesized complexes of selenium-containing ligands was shown; unlike sulfur analogs, ligands L themselves demonstrate a high cytotoxicity, comparable in some cases to the toxicity of copper-containing complexes.
Collapse
Affiliation(s)
- Alexander V Finko
- Moscow State University, Department of Chemistry Leninskie Gory, Building 1/3 Moscow 119991 Russia .,Topchiev Institute of Petrochemical Synthesis RAS Leninskii pr., 29 Moscow 119991 Russia
| | - Anatolii I Sokolov
- Moscow State University, Department of Chemistry Leninskie Gory, Building 1/3 Moscow 119991 Russia
| | - Dmitry A Guk
- Moscow State University, Department of Chemistry Leninskie Gory, Building 1/3 Moscow 119991 Russia
| | - Victor A Tafeenko
- Moscow State University, Department of Chemistry Leninskie Gory, Building 1/3 Moscow 119991 Russia
| | - Anna A Moiseeva
- Moscow State University, Department of Chemistry Leninskie Gory, Building 1/3 Moscow 119991 Russia
| | - Dmitry A Skvortsov
- Moscow State University, Department of Chemistry Leninskie Gory, Building 1/3 Moscow 119991 Russia .,Higher School of Economics Myasnitskaya 13 Moscow 101000 Russia
| | - Andrei A Stomakhin
- Engelhardt Institute of Molecular Biology RAS Vavilova 32 Moscow 119991 Russia
| | - Andrei A Beloglazkin
- Moscow State University, Department of Chemistry Leninskie Gory, Building 1/3 Moscow 119991 Russia .,Topchiev Institute of Petrochemical Synthesis RAS Leninskii pr., 29 Moscow 119991 Russia
| | - Roman S Borisov
- Topchiev Institute of Petrochemical Synthesis RAS Leninskii pr., 29 Moscow 119991 Russia
| | - Vladimir I Pergushov
- Moscow State University, Department of Chemistry Leninskie Gory, Building 1/3 Moscow 119991 Russia
| | - Mikhail Ya Melnikov
- Moscow State University, Department of Chemistry Leninskie Gory, Building 1/3 Moscow 119991 Russia
| | - Nikolay V Zyk
- Moscow State University, Department of Chemistry Leninskie Gory, Building 1/3 Moscow 119991 Russia
| | - Alexander G Majouga
- Moscow State University, Department of Chemistry Leninskie Gory, Building 1/3 Moscow 119991 Russia .,National University of Science and Technology Leninskii pr., 4 Moscow 119049 Russia.,Mendeleev University of Chemical Technology Miusskaya pl. 9 Moscow 125047 Russia
| | - Elena K Beloglazkina
- Moscow State University, Department of Chemistry Leninskie Gory, Building 1/3 Moscow 119991 Russia
| |
Collapse
|
2
|
Itälä E, Granroth S, Ha D, Kooser K, Levola H, Rachlew E, Tanzer K, Kukk E. Fragmentation of imidazole, pyrimidine and purine induced by core ionization: Significance of small-scale chemical environment. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.01.003] [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]
|
3
|
Ribeiro FDA, Rudek B, Cerqueira HBA, Oliveira RR, Rocha AB, Rocco MLM, Wolff W. Fragment and cluster ions from gaseous and condensed pyridine produced under electron impact. Phys Chem Chem Phys 2018; 20:25762-25771. [DOI: 10.1039/c8cp04335c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ion-distribution from condensed pyridine due to 2 keV electron impact shows hydrogenated fragments and clusters with m/z ≤ 320 u and shifts towards higher masses compared to the gas-phase fragmentation. The formation of a bond between the pyridine and a carbenium ion is crucial for the stability of the selected cluster ions.
Collapse
Affiliation(s)
- Fabio de A. Ribeiro
- Instituto Federal do Rio de Janeiro
- Brazil
- Instituto de Física
- Universidade Federal do Rio de Janeiro
- Brazil
| | - Benedikt Rudek
- Physikalisch-Technische Bundesanstalt (PTB)
- Braunschweig
- Germany
- Physics Dept
- Boston University
| | | | | | | | | | - Wania Wolff
- Instituto de Física
- Universidade Federal do Rio de Janeiro
- Brazil
| |
Collapse
|
4
|
Salén P, Yatsyna V, Schio L, Feifel R, Richter R, Alagia M, Stranges S, Zhaunerchyk V. NEXAFS spectroscopy and site-specific fragmentation of N-methylformamide, N,N-dimethylformamide, and N,N-dimethylacetamide. J Chem Phys 2016; 144:244310. [DOI: 10.1063/1.4954704] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Peter Salén
- Department of Physics, Stockholm University, 106 91 Stockholm, Sweden
| | - Vasyl Yatsyna
- Department of Physics, University of Gothenburg, 412 96 Gothenburg, Sweden
| | - Luca Schio
- IOM-CNR Tasc, SS-14, Km 163.5 Area Science Park, Basovizza, I-34149 Trieste, Italy
| | - Raimund Feifel
- Department of Physics, University of Gothenburg, 412 96 Gothenburg, Sweden
| | - Robert Richter
- Elettra - Sincrotrone Trieste, Area Science Park, 34149 Basovizza, Trieste, Italy
| | - Michele Alagia
- IOM-CNR Tasc, SS-14, Km 163.5 Area Science Park, Basovizza, I-34149 Trieste, Italy
| | - Stefano Stranges
- IOM-CNR Tasc, SS-14, Km 163.5 Area Science Park, Basovizza, I-34149 Trieste, Italy
- Dipartimento di Chimica e Tecnologie del Farmaco, Universitá Sapienza, Roma I-00185, Italy
| | - Vitali Zhaunerchyk
- Department of Physics, University of Gothenburg, 412 96 Gothenburg, Sweden
| |
Collapse
|
5
|
Lin YS, Tsai CC, Lin HR, Hsieh TL, Chen JL, Hu WP, Ni CK, Liu CL. Highly Selective Dissociation of a Peptide Bond Following Excitation of Core Electrons. J Phys Chem A 2015; 119:6195-202. [PMID: 25988354 DOI: 10.1021/acs.jpca.5b04415] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The controlled breaking of a specific chemical bond with photons in complex molecules remains a major challenge in chemistry. In principle, using the K-edge absorption of a particular atomic element, one might excite selectively a specific atomic entity in a molecule. We report here highly selective dissociation of the peptide bonds in N-methylformamide and N-methylacetamide on tuning the X-ray wavelength to the K-edge absorption of the atoms connected to (or near) the peptide bond. The high selectivity (56-71%) of this cleavage arises from the large energy shift of X-ray absorption, a large overlap of the 1s orbital and the valence π* orbital that is highly localized on a peptide bond with antibonding character, and the relatively low bond energy of the peptide bonds. These characteristics indicate that the high selectivity on bond dissociation following core excitation could be a general feature for molecules containing peptide bonds.
Collapse
Affiliation(s)
- Yi-Shiue Lin
- †Scientific Research Division, National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan.,‡Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 10617, Taiwan
| | - Cheng-Cheng Tsai
- ⊥Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi 62102, Taiwan
| | - Huei-Ru Lin
- †Scientific Research Division, National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan.,‡Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 10617, Taiwan.,§Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Tsung-Lin Hsieh
- †Scientific Research Division, National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan.,‡Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 10617, Taiwan
| | - Jien-Lian Chen
- ‡Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 10617, Taiwan.,⊥Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi 62102, Taiwan
| | - Wei-Ping Hu
- ⊥Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi 62102, Taiwan
| | - Chi-Kung Ni
- ‡Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 10617, Taiwan.,∥Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Chen-Lin Liu
- †Scientific Research Division, National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| |
Collapse
|
6
|
Lin YS, Lin SY, Lee YT, Tseng CM, Ni CK, Liu CL, Tsai CC, Chen JL, Hu WP. Core Excitation, Specific Dissociation, and the Effect of the Size of Aromatic Molecules Connected to Oxygen: Phenyl Ether and 1,3-Diphenoxybenzene. J Phys Chem A 2014; 118:7803-15. [DOI: 10.1021/jp505949d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yi-Shiue Lin
- Scientific
Research Division, National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Shu-Yu Lin
- Scientific
Research Division, National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
- Institute
of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 10617, Taiwan
| | - Yuan T. Lee
- Institute
of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 10617, Taiwan
| | - Chien-Ming Tseng
- Department
of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Chi-Kung Ni
- Institute
of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 10617, Taiwan
- Department
of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Chen-Lin Liu
- Scientific
Research Division, National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Cheng-Cheng Tsai
- Department
of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi 62102, Taiwan
| | - Jien-Lian Chen
- Department
of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi 62102, Taiwan
| | - Wei-Ping Hu
- Department
of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi 62102, Taiwan
| |
Collapse
|
7
|
Sakai M, Okada K. Effect of fluoro substitution on the fragmentation of the K-shell excited/ionized pyridine studied by electron impact. JOURNAL OF MASS SPECTROMETRY : JMS 2011; 46:666-671. [PMID: 21744416 DOI: 10.1002/jms.1936] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Fragmentation of the pyridine ring followed by K-shell excitation/ionization has been studied with 2-fluoropyridine (2FPy) by electron impact. Ab initio molecular orbital (MO) calculations were also carried out to investigate the electronic states correlating with specific fragment ions. The fragment ions are produced characteristically at the N 1s edge, while the spectra observed at the F 1s and C 1s edges exhibit a small difference from that at the valence ionization. The production of the C(4)H(2)(+), C(4)H(3)(+) and C(4)H(2)F(+) ions indicates that the cleavage of the N-C6 and C2-C3 bonds or the N-C2 and C5-C6 bonds is likely to occur after the N 1s excitation/ionization. Ab initio MO calculations indicate that the former fission is likely to proceed through the n(N)(1)π(2)(1)π(3)(2) and n(N)(0)π(2)(2)π(3)(2) excited states of the parent molecular dication. On the other hand, the breakage of the N-C2 and C4-C5 bonds, which specifically proceeds at the N 1s edge for 2-methylpyridine, does not occur for 2FPy. The present calculation reveals that the products of this channel are unstable by the electronegativity of fluorine and that the relative energy of the Auger-final states of 2FPy is lowered by the reorganization and electron correlation effects.
Collapse
Affiliation(s)
- Masamichi Sakai
- Department of Chemistry, Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | | |
Collapse
|