1
|
Verevkin SP, Zherikova KV. Health is the greatest wealth: Quest for a diagnostic check for thermochemistry of pure drug compounds. Eur J Pharm Biopharm 2024:114330. [PMID: 38795786 DOI: 10.1016/j.ejpb.2024.114330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/23/2024] [Accepted: 05/15/2024] [Indexed: 05/28/2024]
Abstract
The development of pharmaceutical formulations and the optimisation of drug synthesis are not possible without knowledge of thermodynamics. At the same time, the quantity and quality of the available data is not at a level that meets modern requirements. A convenient diagnostic approach is desirable to assess the quality of available experimental thermodynamic data of drugs. A comprehensive set of available data on phase transitions of profens family drugs was analysed using new complementary measurements and structure-property correlations. The consistent sets of solid-gas, liquid-gas and solid-liquid phase transitions were evaluated for twelve active pharmaceutical ingredients based on alkanoic acid derivatives and recommended for the calculations of the pharmaceutical processes. A "centerpiece approach" proposed in this work helped to perform the "health check" of the thermochemical data. The evaluated data on the sublimation enthalpies were used to derive the crystal lattice energies of the profens and to correlate the water solubilities with the sublimation vapour pressures and molecular parameters. A "paper-and-pen" approach proposed in this work can be extended to the diagnosis of "sick" or "healthy" thermodynamic data for drugs with a different structure than those studied in this work.
Collapse
Affiliation(s)
- Sergey P Verevkin
- Competence Centre CALOR of Faculty of Interdisciplinary Research at University of Rostock, 18059 Rostock, Germany; Department of Physical Chemistry, Kazan Federal University, 420008 Kazan, Russian Federation.
| | - Kseniya V Zherikova
- Nikolaev Institute of Inorganic Chemistry of Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russian Federation
| |
Collapse
|
2
|
Sokolov AA, Yagofarov MI, Balakhontsev IS, Nizamov II, Mukhametzyanov TA, Solomonov BN, Yurkshtovich YN, Stepurko EN. Thermodynamic Properties of 3- and 4-Ethoxyacetanilides between 80 and 480 K. Molecules 2023; 28:7027. [PMID: 37894506 PMCID: PMC10609036 DOI: 10.3390/molecules28207027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023] Open
Abstract
In this work, we present a comprehensive study of the thermodynamic properties of 3-and 4-ethoxyacetanilides. The heat capacities in crystalline, liquid, and supercooled liquid states from 80 to 475 K were obtained using adiabatic, differential scanning (DSC), and fast scanning (FSC) calorimetries. The fusion enthalpies at Tm were combined from DSC measurement results and the literature data. The fusion enthalpies at 298.15 K were evaluated in two independent ways: adjusted according to Kirchhoff's law of thermochemistry, and using Hess' law. For the latter approach, the enthalpies of the solution in DMF in crystalline and supercooled liquid states were derived. The values obtained by the two methods are consistent with each other. The standard thermodynamic functions (entropy, enthalpy, and Gibbs energy) between 80 and 470 K were calculated.
Collapse
Affiliation(s)
- Andrey A Sokolov
- Department of Physical Chemistry, Kazan Federal University, Kremlevskaya Str. 18, 420008 Kazan, Russia
| | - Mikhail I Yagofarov
- Department of Physical Chemistry, Kazan Federal University, Kremlevskaya Str. 18, 420008 Kazan, Russia
| | - Ilya S Balakhontsev
- Department of Physical Chemistry, Kazan Federal University, Kremlevskaya Str. 18, 420008 Kazan, Russia
| | - Ilyas I Nizamov
- Department of Physical Chemistry, Kazan Federal University, Kremlevskaya Str. 18, 420008 Kazan, Russia
| | - Timur A Mukhametzyanov
- Department of Physical Chemistry, Kazan Federal University, Kremlevskaya Str. 18, 420008 Kazan, Russia
| | - Boris N Solomonov
- Department of Physical Chemistry, Kazan Federal University, Kremlevskaya Str. 18, 420008 Kazan, Russia
| | | | - Elena N Stepurko
- Chemistry Department, Belarusian State University, 220030 Minsk, Belarus
| |
Collapse
|
3
|
Verevkin SP, Samarov AA. Thermochemistry in the twenty-first century–quo vadis? In silico assisted diagnostics of available thermochemical data. Struct Chem 2022. [DOI: 10.1007/s11224-022-02091-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Abstract
Which comes first, experiment or theory? The answer is obvious—the experiment comes first. But how to be sure that the result of the experiment is reliable? Perhaps the crucial criterion is that the result should be consistent with the network of knowledge already available. In this study, we propose a step-by-step algorithm for quality diagnostics of thermochemical data on enthalpies of formation and enthalpies of phase transitions of organic compounds. The consistency of the data is studied and established using empirical structure–property correlations as well as using quantum chemical calculations. The diagnostic algorithm is exemplarily demonstrated on a series of alkyl-substituted benzophenones for which conflicting thermochemical data were available.
Collapse
|
4
|
Naef R, Acree WE. Revision and Extension of a Generally Applicable Group-Additivity Method for the Calculation of the Standard Heat of Combustion and Formation of Organic Molecules. Molecules 2021; 26:6101. [PMID: 34684682 PMCID: PMC8539152 DOI: 10.3390/molecules26206101] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/04/2021] [Accepted: 10/06/2021] [Indexed: 11/20/2022] Open
Abstract
The calculation of the heats of combustion ΔH°c and formation ΔH°f of organic molecules at standard conditions is presented using a commonly applicable computer algorithm based on the group-additivity method. This work is a continuation and extension of an earlier publication. The method rests on the complete breakdown of the molecules into their constituting atoms, these being further characterized by their immediate neighbor atoms. The group contributions are calculated by means of a fast Gauss-Seidel fitting calculus using the experimental data of 5030 molecules from literature. The applicability of this method has been tested by a subsequent ten-fold cross-validation procedure, which confirmed the extraordinary accuracy of the prediction of ΔH°c with a correlation coefficient R2 and a cross-validated correlation coefficient Q2 of 1, a standard deviation σ of 18.12 kJ/mol, a cross-validated standard deviation S of 19.16 kJ/mol, and a mean absolute deviation of 0.4%. The heat of formation ΔH°f has been calculated from ΔH°c using the standard enthalpies of combustion for the elements, yielding a correlation coefficient R2 for ΔH°f of 0.9979 and a corresponding standard deviation σ of 18.14 kJ/mol.
Collapse
Affiliation(s)
- Rudolf Naef
- Department of Chemistry, University of Basel, 4003 Basel, Switzerland
| | - William E. Acree
- Department of Chemistry, University of North Texas, Denton, TX 76203, USA;
| |
Collapse
|
5
|
Zherikova KV, Verevkin SP. Error or exemption to the rule? Development of a diagnostic check for thermochemistry of metal-organic compounds. RSC Adv 2020; 10:38158-38173. [PMID: 35517534 PMCID: PMC9057213 DOI: 10.1039/d0ra06880b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 10/09/2020] [Indexed: 11/21/2022] Open
Abstract
Volatile metal β-diketonates are well-known precursors used in Metal-Organic Chemical Vapour Deposition (MOCVD) for manufacturing film materials. Knowledge of vapour pressures and sublimation/vaporization thermodynamics of the MOCVD precursors is indispensable for optimization of deposition. However, the spread of available data could be unacceptably large for the same precursor for several reasons related to its chemical nature or incorrectly configured conditions of tensimetric investigation. In this work, we have developed an algorithm for a general diagnostic check, based on principles of group-additivity, for thermochemistry on solid-gas, liquid-gas, and solid-liquid phase transitions of metal-organic compounds and applied it to tris(beta-diketonato)iron complexes. The diagnostic tool helps to localize general "healthy" thermochemical interconnected data, and, subsequently, isolate molecules with definitely "ill" properties from the data pool. This diagnostic tool could be expanded and adapted for β-diketonate complexes with metals other than iron.
Collapse
Affiliation(s)
- Kseniya V Zherikova
- Nikolaev Institute of Inorganic Chemistry of Siberian Branch of Russian Academy of Sciences 630090 Novosibirsk Russia
| | - Sergey P Verevkin
- Chemical Technological Department, Samara State Technical University Samara 443100 Russia .,Department of Physical Chemistry and Department of "Science and Technology of Life, Light and Matter", University of Rostock Rostock 18059 Germany
| |
Collapse
|
6
|
Zaitseva KV, Varfolomeev MA, Verevkin SP. Vapour pressures and enthalpies of vaporisation of N‑alkyl acetamides. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111453] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
7
|
Abdelaziz A, Zaitsau DH, Kuratieva NV, Verevkin SP, Schick C. Melting of nucleobases. Getting the cutting edge of "Walden's Rule". Phys Chem Chem Phys 2019; 21:12787-12797. [PMID: 30888011 DOI: 10.1039/c9cp00716d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Walden's Rule is an empirical observation of an invariant fusion entropy during fusion of non-associated organic compounds. For the five nucleobases, adenine, thymine, cytosine, guanine, and uracil, surprisingly high fusion temperatures and enthalpies have been measured using a specially developed fast scanning calorimetry method that prevents decomposition. Even when nucleobases admittedly possess very high fusion temperatures, e.g. the value of 862 K measured for guanine really exceeds all expectations of the feasible dimension of the fusion temperature for such a relatively small and simple organic molecule. Hirshfeld surface analysis has been applied in order to find out an explanation for such extremely unusual thermal behavior of nucleobases. We rationalized the observed trends in terms of fusion entropy (Walden's constant = 56.5 J K-1 mol-1) as the entropic penalty of fusion not only for "non-associated", as proposed by Walden in 1908, but also for "ideal associated" systems like nucleobases.
Collapse
Affiliation(s)
- A Abdelaziz
- University of Rostock, Institute of Physics, Albert-Einstein-Str. 23-24, 18051 Rostock, Germany. and University of Rostock, Faculty of Interdisciplinary Research, Competence Centre CALOR, Albert-Einstein-Str. 25, 18051 Rostock, Germany.
| | - D H Zaitsau
- University of Rostock, Institute of Chemistry, Dr-Lorenz-Weg 2, 18059 Rostock, Germany
| | - N V Kuratieva
- Nikolaev Institute of Inorganic Chemistry of Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - S P Verevkin
- University of Rostock, Faculty of Interdisciplinary Research, Competence Centre CALOR, Albert-Einstein-Str. 25, 18051 Rostock, Germany. and University of Rostock, Institute of Chemistry, Dr-Lorenz-Weg 2, 18059 Rostock, Germany and Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russian Federation
| | - C Schick
- University of Rostock, Institute of Physics, Albert-Einstein-Str. 23-24, 18051 Rostock, Germany. and University of Rostock, Faculty of Interdisciplinary Research, Competence Centre CALOR, Albert-Einstein-Str. 25, 18051 Rostock, Germany. and Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russian Federation
| |
Collapse
|
8
|
Paulechka E, Kazakov A. Efficient Estimation of Formation Enthalpies for Closed-Shell Organic Compounds with Local Coupled-Cluster Methods. J Chem Theory Comput 2018; 14:5920-5932. [PMID: 30234978 PMCID: PMC7664059 DOI: 10.1021/acs.jctc.8b00593] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Efficient estimation of the enthalpies of formation for closed-shell organic compounds via atom-equivalent-type computational schemes and with the use of different local coupled-cluster with single, double, and perturbative triple excitation (CCSD(T)) approximations was investigated. Detailed analysis of established sources of uncertainty, inclusive of contributions beyond frozen-core CCSD(T) and errors due to local CCSD(T) approximations and zero-point energy anharmonicity, suggests the lower limit of about 2 kJ·mol-1 for the expanded uncertainty of the proposed estimation framework. Among the tested computational schemes, the best-performing cases demonstrate expanded uncertainty of about 2.5 kJ·mol-1, based on the analysis against 44 critically evaluated experimental values. Computational efficiency, accuracy commensurable with that of a typical experiment, and absence of the need for auxiliary reactions and additional experimental data offer unprecedented advantages for practical use, such as prompt validation of existing measurements and estimation of missing values, as well as resolution of experimental conflicts. The utility of the proposed methodology was demonstrated using a representative sample of the most recent experimental measurements.
Collapse
Affiliation(s)
- Eugene Paulechka
- Thermodynamics Research Center, Applied Chemicals and Materials Division , National Institute of Standards and Technology , 325 Broadway , Boulder , Colorado 80305-3337 , United States
| | - Andrei Kazakov
- Thermodynamics Research Center, Applied Chemicals and Materials Division , National Institute of Standards and Technology , 325 Broadway , Boulder , Colorado 80305-3337 , United States
| |
Collapse
|