Theoretical study of the dimerization of aqueous beryllium cations

Verfasser / Beitragende:
[Xiaoyan Jin, Hai Wu, Hong Wang, Zhengjie Huang, Hong Zhang]
Ort, Verlag, Jahr:
2015
Enthalten in:
Journal of Molecular Modeling, 21/1(2015-01-01), 1-7
Format:
Artikel (online)
ID: 605510725
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024 7 0 |a 10.1007/s00894-014-2548-2  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00894-014-2548-2 
245 0 0 |a Theoretical study of the dimerization of aqueous beryllium cations  |h [Elektronische Daten]  |c [Xiaoyan Jin, Hai Wu, Hong Wang, Zhengjie Huang, Hong Zhang] 
520 3 |a The dimerization of monomeric beryllium species was studied via density functional theory (DFT) calculations, and the influences of deprotonation and substitution with various halide anions on the polymerization were explored. The results indicate that the dimerization was accomplished by aggregation followed by a nucleophilic attack reaction, and the hydrolysis that provides the nucleophilic hydroxyl group is a prerequisite for polymerization. An activation energy of 49.7kJmol−1 and an aggregation energy of −52.2kJmol−1 were found for the formation of Be2(OH)(H2O)6 3+, indicating a exothermic reaction. Deprotonation promotes aggregation and increases the energy barrier to activation. Replacing a bound water with an F− anion makes aggregation more thermodynamically favorable, but it does not significantly change the energy barrier. It was concluded that the charge and electronegativity of the anion are crucial influences on the energy of the activation barrier, whereas the aggregation energy is influenced not only by the charge but also by the symmetry of the bridging structure in the aggregate. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Dimerization process  |2 nationallicence 
690 7 |a Aqueous beryllium species  |2 nationallicence 
690 7 |a Substituting anions  |2 nationallicence 
690 7 |a Nucleophilic attack  |2 nationallicence 
690 7 |a DFT  |2 nationallicence 
700 1 |a Jin  |D Xiaoyan  |u School of Chemistry and Materials Engineering, Fuyang Teachers College, 236041, Fuyang, Anhui, China  |4 aut 
700 1 |a Wu  |D Hai  |u School of Chemistry and Materials Engineering, Fuyang Teachers College, 236041, Fuyang, Anhui, China  |4 aut 
700 1 |a Wang  |D Hong  |u School of Chemistry and Materials Engineering, Fuyang Teachers College, 236041, Fuyang, Anhui, China  |4 aut 
700 1 |a Huang  |D Zhengjie  |u School of Chemistry and Materials Engineering, Fuyang Teachers College, 236041, Fuyang, Anhui, China  |4 aut 
700 1 |a Zhang  |D Hong  |u School of Chemistry and Materials Engineering, Fuyang Teachers College, 236041, Fuyang, Anhui, China  |4 aut 
773 0 |t Journal of Molecular Modeling  |d Springer Berlin Heidelberg  |g 21/1(2015-01-01), 1-7  |x 1610-2940  |q 21:1<1  |1 2015  |2 21  |o 894 
856 4 0 |u https://doi.org/10.1007/s00894-014-2548-2  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00894-014-2548-2  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Jin  |D Xiaoyan  |u School of Chemistry and Materials Engineering, Fuyang Teachers College, 236041, Fuyang, Anhui, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wu  |D Hai  |u School of Chemistry and Materials Engineering, Fuyang Teachers College, 236041, Fuyang, Anhui, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wang  |D Hong  |u School of Chemistry and Materials Engineering, Fuyang Teachers College, 236041, Fuyang, Anhui, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Huang  |D Zhengjie  |u School of Chemistry and Materials Engineering, Fuyang Teachers College, 236041, Fuyang, Anhui, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Zhang  |D Hong  |u School of Chemistry and Materials Engineering, Fuyang Teachers College, 236041, Fuyang, Anhui, China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Journal of Molecular Modeling  |d Springer Berlin Heidelberg  |g 21/1(2015-01-01), 1-7  |x 1610-2940  |q 21:1<1  |1 2015  |2 21  |o 894