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Suzdalev KF, Gazizova JV, Tkachev VV, Kletskii ME, Lisovin AV, Burov ON, Steglenko DV, Kurbatov SV, Shilov GV. Domino reactions of thiopyrano[4,3- b]indole-3(5 H)-thiones and dimethyl acetylenedicarboxylate: Quantum chemical investigation and experiment. J Sulphur Chem 2022. [DOI: 10.1080/17415993.2022.2139147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
| | - Julia V. Gazizova
- Department of Chemistry, Southern Federal University, Rostov-on-Don, Russia
| | - Valery V. Tkachev
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russia
| | | | - Anton V. Lisovin
- Institute of Physical and Organic Chemistry, Southern Federal University, Rostov-on-Don, Russia
| | - Oleg N. Burov
- Department of Chemistry, Southern Federal University, Rostov-on-Don, Russia
| | - Dmitriy V. Steglenko
- Institute of Physical and Organic Chemistry, Southern Federal University, Rostov-on-Don, Russia
| | - Sergey V. Kurbatov
- Department of Chemistry, Southern Federal University, Rostov-on-Don, Russia
| | - Gennadii V. Shilov
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Russia
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Steglenko DV, Tkachenko NV, Boldyrev AI, Minyaev RM, Minkin VI. Stability, electronic, and optical properties of two-dimensional phosphoborane. J Comput Chem 2020; 41:1456-1463. [PMID: 32176381 DOI: 10.1002/jcc.26189] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 02/24/2020] [Indexed: 01/16/2023]
Abstract
The structure and properties of two-dimensional phosphoborane sheets were computationally investigated using Density Functional Theory calculations. The calculated phonon spectrum and band structure point to dynamic stability and allowed characterization of the predicted two-dimensional material as a direct-gap semiconductor with a band gap of ~1.5 eV. The calculation of the optical properties showed that the two-dimensional material has a relatively small absorptivity coefficient. The parameters of the mechanical properties characterize the two-dimensional phosphoborane as a relatively soft material, similar to the monolayer of MoS2 . Assessment of thermal stability by the method of molecular dynamics indicates sufficient stability of the predicted material, which makes it possible to observe it experimentally.
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Affiliation(s)
- Dmitriy V Steglenko
- Institute of Physical and Organic Chemistry, Southern Federal University, Rostov-on-Don, Russia
| | - Nikolay V Tkachenko
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah, USA
| | - Alexander I Boldyrev
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah, USA
| | - Ruslan M Minyaev
- Institute of Physical and Organic Chemistry, Southern Federal University, Rostov-on-Don, Russia
| | - Vladimir I Minkin
- Institute of Physical and Organic Chemistry, Southern Federal University, Rostov-on-Don, Russia
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Pozharskii AF, Ozeryanskii VA, Filatova EA, Dyablo OV, Pogosova OG, Borodkin GS, Filarowski A, Steglenko DV. Neutral Pyrrole Nitrogen Atom as a π- and Mixed n,π-Donor in Hydrogen Bonding. J Org Chem 2019; 84:726-737. [PMID: 30576143 DOI: 10.1021/acs.joc.8b02562] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
9-Dimethylaminobenzo[ g]indoles 3-6 and 1-dimethylamino-8-(pyrrolyl-1)naphthalene 7 were examined as possible models for establishing the ability of the pyrrole nitrogen atom to participate in [NHN]+ hydrogen bonding as a proton acceptor. Indoles 3-5 (to a lesser extent 6) form rather stable tetrafluoroborates, with the proton mostly located on the NMe2 group but simultaneously engaged in the formation of a charged intramolecular [NHN]+ hydrogen bond (IHB) with the pyrrole N atom. The theoretically estimated energies of IHB in salts 3H+BF4--6H+BF4- vary between 7.0-10.7 and 6.2-7.0 kcal mol-1 in vapor and MeCN, respectively. The pyrrole N atom undergoes a perceptible pyramidalization but still remains involved in the 6π-electron aromatic system, suggesting that the hydrogen bonding in salts 3H+BF4--6H+BF4- represents a previously unknown mixed NH···N(n,π) interaction. Despite the favorable orientation of the N-H bond and the pyrrole ring in salt 7H+BF4-, no signs of NH···N(n) bonding in it were noticed, and the existing interaction was classified as pure NH···N(π). The results obtained may be useful in studies of secondary protein structures, especially those α-helix sections which contain tryptophan residues.
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Affiliation(s)
- Alexander F Pozharskii
- Department of Organic Chemistry , Southern Federal University , Zorge str. 7 , 344090 Rostov-on-Don , Russian Federation
| | - Valery A Ozeryanskii
- Department of Organic Chemistry , Southern Federal University , Zorge str. 7 , 344090 Rostov-on-Don , Russian Federation
| | - Ekaterina A Filatova
- Department of Organic Chemistry , Southern Federal University , Zorge str. 7 , 344090 Rostov-on-Don , Russian Federation
| | - Olga V Dyablo
- Department of Organic Chemistry , Southern Federal University , Zorge str. 7 , 344090 Rostov-on-Don , Russian Federation
| | - Olga G Pogosova
- Department of Organic Chemistry , Southern Federal University , Zorge str. 7 , 344090 Rostov-on-Don , Russian Federation
| | - Gennady S Borodkin
- Institute of Physical and Organic Chemistry , Southern Federal University , Stachki Avenue 194/2 , 344090 Rostov-on-Don , Russian Federation
| | - Aleksander Filarowski
- Faculty of Chemistry , University of Wroclaw , F. Joliot-Curie 14 , 50-383 Wroclaw , Poland.,Department of Physics , Industrial University of Tyumen , Volodarskogo 38 , 625000 Tyumen , Russian Federation
| | - Dmitriy V Steglenko
- Department of Organic Chemistry , Southern Federal University , Zorge str. 7 , 344090 Rostov-on-Don , Russian Federation.,Institute of Physical and Organic Chemistry , Southern Federal University , Stachki Avenue 194/2 , 344090 Rostov-on-Don , Russian Federation
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