Abstract
The data presented in this paper are related to the research article entitled "Mechanistic study of transesterification in TBD-catalyzed ring-opening polymerization of methyl ethylene phosphate" (Nifant'ev et al., 2019). In this data article, we present 3D molecular information of 76 structures for TBD-catalyzed transformations of methyl ethylene phosphate (MeOEP) and trimethyl phosphate (TMP). We also present 3D molecular information for 24 complexes that model the reaction profile of transesterification of poly(MeOEP) and TMP catalyzed by 2,6-di-tert-butyl-4-methylphenoxy magnezium species, complementing the article "Mechanistic insights of BHT-Mg-catalyzed ethylene phosphate's coordination ring-opening polymerization: DFT modeling and experimental data" (Nifant'ev et al., 2018). The data contains stationary points and transition states (TS) along the first propagation step of MeOEP ring-opening polymerization (ROP) for alternative amide and donor-acceptor mechanisms, initiated by EtOH in the presence of TBD; stationary points and TS for MeOH and HOCH2CH2OP(O)(OMe)2 initiated ROP of MeOEP; and stationary points and TS for transesterification of poly(MeOEP) and TMP. In addition, the data contains stationary points and transition states for the ROP of MeOEP and transesterification of poly(MeOEP) and TMP catalyzed by 2,6-di-tert-butylphenoxy magnesium complex. The data are provided in a PDB format that can be used for further studies.
Keywords: DFT, Ring-opening polymerization, Ethylene phosphates, Organocatalysis, Coordination catalysis
Specifications Table
| Subject area | Chemistry |
| More specific subject area | Physical and Theoretical Chemistry Polymer chemistry |
| Type of data | PDB files |
| How data was acquired | Density functional theory calculations with Gaussian 09 |
| Data format | Raw |
| Experimental factors | The dataset of 100 molecular structures were generated from density functional theory (DFT) calculations |
| Experimental features | Geometry optimization with B3PW91 functional. Effective core potential DGTZVP was used. |
| Data source location | Moscow, Russian Federation |
| Data accessibility | Data are supplied with this article |
| Related research article | I.E. Nifant'ev, A.V. Shlyakhtin, A.N. Tavtorkin, M.A. Kosarev, D.E. Gavrilov, S.O. Ilyin, S.G. Karchevsky, P.V. Ivchenko. Mechanistic study of transesterification in TBD-catalyzed ring-opening polymerization of methyl ethylene phosphate, Eur. Polym. J. 118 (2019) 393–403, https://doi.org/10.1016/j.eurpolymj.2019.06.015. |
Value of the data
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1. Data
The data described in this paper provides in formation for the electronic structures for reaction components of TBD-catalyzed ring-opening polymerization (ROP) of methyl ethylene phosphate, for stationary points and transition states of the ROP of MeOEP initiated by MeOH, EtOH and model macroinitiator HOCH2CH2OP(O)(OMe)2, as well as for stationary points and transition states of the transesterification of poly(MeOEP) by using triphosphate MeOP(O)[OCH2CH2OP(O)(OMe)2]2 as a model of polyphosphate chain, and trimethyl phosphate (TMP) as a low-molecular acyclic phosphate (see Ref. [1] for more details). The data set also includes stationary points and transition states for the ROP and transesterifications in the presence of the model 2,6-di-tert-butylphenoxy magnesium (DBP-Mg) coordination catalyst (these Data complement the article [2] which includes the results of the DFT modeling of DBP-Mg-catalyzed polymerization of MeOEP). The data set of 100 structures were generated from density functional theory (DFT) calculations [3], [4]. Atomic coordinate files for each species of all reagents and catalysts are provided in PDB format in the Supplementary material.
2. Experimental design, materials, and methods
All geometries were fully optimized at using Gaussian 09 program [5]. The B3PW91 hybrid functional [6], [7] and DGTZVP basis [8], [9] were applied for calculations. The applicability of B3PW91 functional for the modeling of ring-opening polymerization was described earlier [2], [10], [11], [12], [13], [14], [15]. The optimization of stationary points geometries, frequency analysis, and calculations of entropy corrections were made for gas phase at 298.15 K. Transition states were found directly by Berny optimization and confirmed by the relaxation to corresponding stationary structures after changing of key geometric parameter with a step of ±0.01 Å.
Acknowledgments
This work was supported by the Russian Science Foundation, Grant No. 18-73-10069, and was carried out within the State Program of TIPS RAS.
Footnotes
Supplementary data to this article can be found online at https://doi.org/10.1016/j.dib.2019.104431.
Conflict of interest
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Appendix A. Supplementary data
The following is the Supplementary data to this article:
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