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Proceeding Paper

Theoretical Studies and Computer Modeling of Supramolecular Chemical Systems: Structure, Properties and Reactivity †

1
Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab., 7/9, 199034 Saint Petersburg, Russia
2
Infochemistry Scientific Center, ITMO University, Kronverksky Pr., 49, Bldg. A, 197101 Saint Petersburg, Russia
3
Research Institute of Chemistry, Peoples’ Friendship University of Russia (RUDN University), Miklukho-Maklaya St., 6, 117198 Moscow, Russia
Presented at the 26th International Electronic Conference on Synthetic Organic Chemistry, 15–30 November 2022; Available online: https://sciforum.net/event/ecsoc-26.
Chem. Proc. 2022, 12(1), 88; https://doi.org/10.3390/ecsoc-26-13717
Published: 18 November 2022

Abstract

:
The results of my research in the fields of theoretical studies and computer modeling of supramolecular chemical systems were presented. The main attention was focused on theoretical studies in the following topics: cycloaddition and nucleophilic addition reactions involving substrates with multiple CC and CN bonds, their mechanisms, driving forces, kinetics and thermodynamics; the consideration of the catalysis of hydrocarbons oxidation processes and their conversion to alcohols, ethers, aldehydes, ketones and carboxylic acids; investigations of various unusual types of non-covalent interactions (from quite trivial hydrogen bonds to more exotic σ-hole, π-hole and metallophilic interactions) in organic, organometallic and coordination compounds. Some fundamental issues of supramolecular chemical systems were also discussed (e.g., structure and properties of chemical compounds and their supramolecular associates; conformational transitions and rotation barriers of functional groups; nature of chemical bonds; orbital and charge factors; photophysical properties).

In this Keynote presentation, I have presented the results of my research in fields of theoretical studies and computer modeling of supramolecular chemical systems. The main attention was focused on theoretical studies in the following topics: cycloaddition and nucleophilic-addition reactions involving substrates with multiple CC and CN bonds (viz. metal-assisted (by Au(I), Au(III), Pt(II), Pt(IV), Re(V) and Pd(II)) 1,3-dipolar cycloaddition of aldo- and ketonitrones to isocyanides [1]; Cu(I)-catalyzed 1,3-dipolar cycloaddition of ketonitrones to dialkylcyanamides [2]; nucleophilic addition of hydroxyguanidines, amidoximes and ketoximes to nitrilium closo-decaborate clusters [3]; nucleophilic addition of amidoximes to aromatic nitrile complexes trans-[PtCl2(RC6H4CN)2] (R = p-CF3, H, o-Cl) [4]), their mechanisms, driving forces, kinetics and thermodynamics and correlations between activation and reaction energies and the calculated unscaled stretching vibration frequencies of CN group in metal-free and coordinated isocyanides were also discussed [5]; the consideration of the catalysis of hydrocarbons oxidation processes and their conversion to alcohols, ethers, aldehydes, ketones and carboxylic acids (mechanisms of the rate-limiting stages of alkanes oxidation and olefins epoxidation with hydrogen peroxide assisted by the formation of hydroxyl radicals, catalyzed by aqua complexes [M(H2O)n]3+ of the group III metals exhibiting a unique stable non-zero oxidation state (M = Ga, In, Sc, Y or La) [6]); investigations of various unusual types of non-covalent interactions (from quite trivial hydrogen bonds to more exotic σ-hole, π-hole and metallophilic interactions) in organic, organometallic and coordination compounds (viz. intermolecular hydrogen bonds and anagostic interactions in Pd(II) acyclic diaminocarbene complexes [7]; supramolecular polymers derived from Pd(II) and Pt(II) N,N-diaryldiazabutadiene Schiff base complexes via C(sp2)–H···Hal hydrogen bonding [8]; halogen bonds with metal centers [9] and isocyano carbon atom [10]; non-covalent B–H···π(Ph) interactions determines stabilization of the configuration around the amidrazone C=N bond in closo-decaborato amidrazones [11]; the effect of halogen bonding on solubility of Pd/Pt isocyanide complexes [12]; chalcogen bonds in Pd(II) carbene complexes [13]; stacking interactions and π-hole interactions in transition metal complexes and various supramolecular building blocks [14]; ligation-enhanced π-hole···π, π-hole···metal center, and π-hole···lone pair interactions involving isocyanides [15]; reverse-arene sandwich structures based upon π-hole···[M(II)] (d8 M = Pt, Pd) interactions intramolecular [16]; xenon derivatives as aerogen bond-donating catalysts for organic transformations [17]; sulfonium and selenonium salts as noncovalent organocatalysts for the multicomponent Groebke–Blackburn–Bienaymé reaction [18]). Some fundamental issues of supramolecular chemical systems were also discussed (e.g., structure and properties of chemical compounds and their supramolecular associates (viz. comprehensive theoretical study of the aminonitrone-iminohydroxamic acid tautomerism [19]; melamine–barbiturate supramolecular assembly as a pH-dependent organic radical trap material [20]); conformational transitions and rotation barriers of functional groups; nature of chemical bonds; orbital and charge factors; photophysical properties of phosphorescent Pt(II) complexes featuring chelated acetoxime pyrazoles [21]). This research is interdisciplinary in nature and lies at the intersection of computer modeling with such natural science disciplines as chemistry, physics, crystallography, biology and medicine, as well as directly related to materials science and nanotechnology. The results obtained in the course of this research can be promising for finding new original ways to create high-tech functional materials with valuable mechanical, magnetic and optical properties; porous structures with a developed surface, sensors, battery cells and liquid crystals; synthesis of antibacterial, antiviral and antineoplastic drugs; labels for neutron capture therapy of oncological diseases; catalysts for cross-coupling processes (for example, the Suzuki, Heck and Sonogashira reactions) and the conversion of hydrocarbons (for example, to alcohols, epoxides, ethers, aldehydes, ketones and carboxylic acids), as well as multicomponent reactions.

Funding

The support of my research focused on theoretical studies and computer modeling of supramolecular chemical systems within the RUDN University Strategic Academic Leadership Program is gratefully acknowledged.

Institutional Review Board Statement

Not applicable.

Informed Consent Statement

Not applicable.

Data Availability Statement

Not applicable.

Conflicts of Interest

The author declares no conflict of interest.

References

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MDPI and ACS Style

Novikov, A.S. Theoretical Studies and Computer Modeling of Supramolecular Chemical Systems: Structure, Properties and Reactivity. Chem. Proc. 2022, 12, 88. https://doi.org/10.3390/ecsoc-26-13717

AMA Style

Novikov AS. Theoretical Studies and Computer Modeling of Supramolecular Chemical Systems: Structure, Properties and Reactivity. Chemistry Proceedings. 2022; 12(1):88. https://doi.org/10.3390/ecsoc-26-13717

Chicago/Turabian Style

Novikov, Alexander S. 2022. "Theoretical Studies and Computer Modeling of Supramolecular Chemical Systems: Structure, Properties and Reactivity" Chemistry Proceedings 12, no. 1: 88. https://doi.org/10.3390/ecsoc-26-13717

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