A novel molecular dynamics methodology recently proposed by our group [Rega et al, Chem. Phys. Lett. 422, 367 (2006)], which is based on an integrated hybrid potential rooted in high level quantum mechanical methods using localized basis functions and nonperiodic boundary conditions, has been applied to study acrolein in aqueous solution. The solute structural rearrangement and its hydrogen-bonding pattern due to the interactions with water have been analyzed in some detail. Moreover, the solvent effects on the UV vertical transition and on the NMR and shielding constants of acrolein have been investigated theoretically by performing a posteriori quantum mechanical calculations on a statistically significant number of snapshots extracted from both gas-phase and aqueous solution simulations. Results show that such effective computational strategy can be successfully used to improve our understanding, at atomic level, of important spectroscopic observables.
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28 October 2006
Research Article|
October 31 2006
A quantum mechanical/molecular dynamics/mean field study of acrolein in aqueous solution: Analysis of H bonding and bulk effects on spectroscopic properties
Giuseppe Brancato;
Giuseppe Brancato
Dipartimento di Chimica,
Università Federico II
, Complesso Monte S. Angelo, Via Cintia, I-80126 Napoli, Italy
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Nadia Rega;
Nadia Rega
Dipartimento di Chimica,
Università Federico II
, Complesso Monte S. Angelo, Via Cintia, I-80126 Napoli, Italy
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Vincenzo Barone
Vincenzo Barone
a)
Dipartimento di Chimica,
Università Federico II
, Complesso Monte S. Angelo, Via Cintia, I-80126 Napoli, Italy
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a)
Author to whom correspondence should be addressed. Electronic mail: baronev@unina.it
J. Chem. Phys. 125, 164515 (2006)
Article history
Received:
May 24 2006
Accepted:
September 12 2006
Citation
Giuseppe Brancato, Nadia Rega, Vincenzo Barone; A quantum mechanical/molecular dynamics/mean field study of acrolein in aqueous solution: Analysis of H bonding and bulk effects on spectroscopic properties. J. Chem. Phys. 28 October 2006; 125 (16): 164515. https://doi.org/10.1063/1.2359723
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