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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Sherrill, C. David Ringer, Ashley L. |
| Description | Author Affiliation: Ringer AL ( Center for Computational Molecular Science and Technology, School of Chemistry and Biochemistry and College of Computing, Georgia Institute of Technology, Atlanta, Georgia, 30332-0400, USA.) |
| Abstract | We provide a first-principles methodology to obtain converged results for the lattice energy of crystals of small, neutral organic molecules. In particular, we determine the lattice energy of crystalline benzene using an additive system based on the individual interaction energies of benzene dimers. Enthalpy corrections are estimated so that the lattice energy can be directly compared to the experimentally determined sublimation energy. Our best estimate of the sublimation energy is $49.4 kJ mol^{−1},$ just over the typical experimentally reported values of $43–47 kJ mol^{−1}.$ Our results underscore the necessity of using highly correlated electronic structure methods to determine thermodynamic properties within chemical accuracy. The first coordination sphere contributes about 90 % of the total lattice energy, and the second coordination sphere contributes the remaining 10 %. Three-body interactions are determined to be negligible. |
| ISSN | 09476539 |
| e-ISSN | 15213765 |
| Journal | Chemistry - A European Journal |
| Issue Number | 8 |
| Volume Number | 14 |
| Language | English |
| Publisher | Wiley-VCH;ChemPubSoc Europe |
| Publisher Date | 2008-01-01 |
| Publisher Place | Germany |
| Access Restriction | Open |
| Subject Keyword | Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Catalysis |
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