The role of exchange in systematic DFT errors for some organic reactions: Electronic supplementary information
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- Διονύσιος Γιαννόπουλος
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1 The role of exchange in systematic DFT errors for some organic reactions: Electronic supplementary information David R. B. Brittain a,b, Ching Yeh Lin a,b, Andrew T. B. Gilbert a, Ekaterina I. Izgorodina a,b,c, Peter M. W. Gill a and Michelle L. Coote a,b a Research School of Chemistry, Australian National University, Canberra, Australia. b ARC Centre of Excellence in Free Radical Chemistry and Biotechnology. c Current address: School of Chemistry, Monash University, Melbourne, Australia. Correspondence to: dbrittain@rsc.anu.edu.au
2 Contents 1 Theoretical Procedures S2 2 Tables of Data for Figures 1 and 2 S8 3 Optimised geometries S Geometries Optimised at the B3LYP/6-31G(d) Level for the 12-reaction Test Set S Geometries Optimised at the B3LYP/6-31+G(d,p) Level for the 12 Reaction Test Set S Optimised Geometries of the 17 Small Molecules of Table 1.. S23 S1
3 1 Theoretical Procedures Ab initio and Density Functional Theory calculations were performed with the Gaussian 03 [1], Molpro [2], Gamess-US [3, 4] and Q-Chem 3.1 [5] programs. For reactions (i) and (ii) (which involve only radicals and neutral species), the geometries of all species were optimised at the B3LYP/6-31G(d) level. For reactions (iii) and (iv) (which include anions or cations), all of the geometries were optimised at the B3LYP/6-31+G(d,p) level. Any additional calculations were performed using these optimised geometries. All geometry optimisations were performed with Gaussian 03. Reference energies for reactions (i) and (ii) were calculated at the CCSD(T)/ccpVTZ level. Coupled cluster calculations for Open-shell species were performed using the RHF-UCCSD method [6], with perturbative triples as defined by Bartlett et al. [7]. Standard closed-shell CCSD(T) was used for the reference energies of reactions (iii) and (iv), however the aug-cc-pvtz basis was used. All coupled cluster reference calculations were performed with Molpro. In order to assess the accuracy of various methods with respect to the reference energies, single point energies were calculated using HF, MP2, G3(MP2)-RAD [8] and a variety of DFT methods, using the G(3df,2p) basis set unless otherwise stated. HF and MP2 calculations used restricted (closed-shell species) or restricted open-shell (radical species) wavefunctions, while DFT calculations used restricted (closed shell species) or unrestricted (radical species) wavefunctions. Gaussian 03 was used for DFT calculations S2
4 unless otherwise stated, using the ultra-fine pruned (99,590) grid[1, 9]. All DFT calculations that required analysis of components of reaction energies (e.g. the DFT exchange energy) were performed with Q-Chem 3.1, and used an unpruned (99,590) grid for consistency[9]. Gaussian 03 was used for all G3(MP2)-RAD [8] calculations of closed-shell species. For open-shell species, Molpro was used for the coupled-cluster component, while the large-basis second-order Møller-Plesset perturbation theory (MP2) calculations were performed with Gaussian 03. Most of the DFT methods used have been cited in our previous papers [10, 11, 12], and only the functionals that are new to this paper will be described. SVWN[13, 14] is a pure exchange correlation functional, dependent only on the electron density, with the exchange and correlation components derived from the uniform electron gas. PBE [15, 16] and PW91 [17] are pure generalized-gradient approximation functionals (GGA s) with both exchange and correlation components, and TPSS [18] is a pure meta-gga, dependent on the kinetic energy density, τ. BR89B94hyb [19, 20], is a hybrid meta- GGA functional which, in addition to being dependent on the kinetic energy density, τ, is dependent on the laplacian of the electron density, 2 ρ. It also has a 15.4% admixture of HF exchange. This is a rare example of a functional whose derivation does not involve the uniform electron gas in any way. It has not been used widely due to its troublesome implementation, but analytical representations of the exchange and correlation components of this functional have recently been derived [20], and are implemented in Q-Chem 3.1. CASSCF/STO-3G calculations for a variety of small molecules were per- S3
5 formed with Gamess-US, for comparison with frozen-core CCSD(T)/STO- 3G, CCSD/STO-3G, CCD/STO-3G and MP2/STO-3G correlation energies. Restricted references were used for closed-shell species, and unrestricted references were used for open-shell species. These coupled cluster calculations were performed with Q-Chem 3.1. The geometries of these species were optimised using the B3LYP/6-31G(d) method, except the anionic species which were optimised at the B3LYP/6-31+G(d,p) level. Geometry optimisations for these species were performed using Gaussian 03. References and Notes [1] M. J. Frisch, G. W. Trucks, H. B. Schlegel, G. E. Scuseria, M. A. Robb, J. R. Cheeseman, J. A. Montgomery, Jr., T. Vreven, K. N. Kudin, J. C. Burant, J. M. Millam, S. S. Iyengar, J. Tomasi, V. Barone, B. Mennucci, M. Cossi, G. Scalmani, N. Rega, G. A. Petersson, H. Nakatsuji, M. Hada, M. Ehara, K. Toyota, R. Fukuda, J. Hasegawa, M. Ishida, T. Nakajima, Y. Honda, O. Kitao, H. Nakai, M. Klene, X. Li, J. E. Knox, H. P. Hratchian, J. B. Cross, V. Bakken, C. Adamo, J. Jaramillo, R. Gomperts, R. E. Stratmann, O. Yazyev, A. J. Austin, R. Cammi, C. Pomelli, J. W. Ochterski, P. Y. Ayala, K. Morokuma, G. A. Voth, P. Salvador, J. J. Dannenberg, V. G. Zakrzewski, S. Dapprich, A. D. Daniels, M. C. Strain, O. Farkas, D. K. Malick, A. D. Rabuck, K. Raghavachari, J. B. Foresman, J. V. Ortiz, Q. Cui, A. G. Baboul, S. Clifford, J. Cioslowski, B. B. Stefanov, G. Liu, A. Liashenko, P. Piskorz, I. Komaromi, R. L. Martin, D. J. Fox, T. Keith, M. A. Al-Laham, C. Y. Peng, S4
6 A. Nanayakkara, M. Challacombe, P. M. W. Gill, B. Johnson, W. Chen, M. W. Wong, C. Gonzalez, and J. A. Pople, Gaussian 03, Revision D.01. [2] H.-J. Werner, P. J. Knowles, R. Lindh, F. R. Manby, M. Schütz, P. Celani, T. Korona, G. Rauhut, R. D. Amos, A. Bernhardsson, A. Berning, D. L. Cooper, M. J. O. Deegan, A. J. Dobbyn, F. Eckert, C. Hampel, G. Hetzer, A. W. Lloyd, S. J. McNicholas, W. Meyer, M. E. Mura, A. Nicklass, P. Palmieri, R. Pitzer, U. Schumann, H. Stoll, A. J. Stone, R. Tarroni, and T. Thorsteinsson, Molpro, version2002.6, a package of ab initio programs, [3] M. W. Schmidt, K. K. Baldridge, J. A. Boatz, S. T. Elbert, M. S. Gordon, J. H. Jensen, S. Koseki, N. Matsunaga, K. A. Nguyen, S. Su, T. L. Windus, M. Dupuis, and J. A. Montgomery, J. Comput. Chem., 1993, 14, [4] M. S. Gordon and M. W. Schmidt, Elsevier, Amsterdam, 2005; chapter Advances in electronic structure theory: GAMESS a decade later, p [5] Y. Shao, L. Fusti-Molnar, Y. Jung, J. Kussmann, C. Ochsenfeld, S. T. Brown, A. T. B. Gilbert, L. V. Slipchenko, S. V. Levchenko, D. P. O Neill, R. A. D. Jr., R. C. Lochan, T. Wang, G. J. O. Beran, N. A. Besley, J. M. Herbert, C. Y. Lin, T. V. Voorhis, S. H. Chien, A. Sodt, R. P. Steele, V. A. Rassolov, P. E. Maslen, P. P. Korambath, R. D. Adamson, B. Austin, J. Baker, E. F. C. Byrd, H. Dachsel, R. J. Doerksen, A. Dreuw, B. D. Dunietz, A. D. Dutoi, T. R. Furlani, S. R. Gwaltney, A. Heyden, S. Hirata, C.-P. Hsu, G. Kedziora, R. Z. Khalliulin, S5
7 P. Klunzinger, A. M. Lee, M. S. Lee, W. Liang, I. Lotan, N. Nair, B. Peters, E. I. Proynov, P. A. Pieniazek, Y. M. Rhee, J. Ritchie, E. Rosta, C. D. Sherrill, A. C. Simmonett, J. E. Subotnik, H. L. W. III, W. Zhang, A. T. Bell, A. K. Chakraborty, D. M. Chipman, F. J. Keil, A. Warshel, W. J. Hehre, H. F. S. III, J. Kong, A. I. Krylov, P. M. W. Gill, and M. Head-Gordon, Phys. Chem. Chem. Phys., 2006, 8, [6] P. J. Knowles, C. Hampel, and H.-J. Werner, J. Chem. Phys., 1993, 99, [7] J. D. Watts, J. Gauss, and R. J. Bartlett, J. Chem. Phys., 1993, 98, [8] D. H. Henry, M. B. Sullivan, and L. Radom, J. Chem. Phys., 2003, 118(11), [9] P. M. W. Gill, B. G. Johnson, and J. A. Pople, Chem. Phys. Lett., 1993, 209(5,6), 506. [10] E. I. Izgorodina, M. C. Coote, and L. Radom, J. Phys. Chem. A, 2005, 109, [11] E. I. Izgorodina, D. R. B. Brittain, J. L. Hodgson, E. H. Krenske, C. Y. Lin, M. Namazian, and M. L. Coote, J. Phys. Chem. A, 2007, 111(42), [12] E. I. Izgorodina and M. L. Coote, J. Phys. Chem. A, 2006, 110, [13] P. A. M. Dirac, Proc. Cambridge Phil. Soc., 1930, 26, 376. [14] S. H. Vosko, L. Wilk, and M. Nusair, Can. J. Phys., 1980, 58(8), S6
8 [15] J. P. Perdew, K. Burke, and M. Ernzerhof, Phys. Rev. Lett., 1996, 77(18), [16] J. P. Perdew, K. Burke, and M. Ernzerhof, Phys. Rev. Lett., 1997, 78(7), [17] K. Burke, J. P. Perdew, and Y. Wang, Plenum, 1998; chapter Derivation of a Generalized-Gradient Approximation: The PW91 Density Functional, p. 81. [18] J. Tau, J. P. Perdew, V. N. Staroverov, and G. E. Scuseria, Phys. Rev. Lett., 2003, 91(14), [19] A. D. Becke, Int. J. Quant. Chem. Symp., 1994, 28, 625. [20] E. Proynov, Z. Gan, and J. Kong, Chem. Phys. Lett., 2008, 455(1-3), 103. S7
9 2 Tables of Data for Figures 1 and 2 S8
10 Table S1: Electronic reaction energy errors for reactions (i)-(iv) at various levels of theory (Figure 1, kj/mol). a S9 Neutral Radicals Anions Cations MAD b MAXD c Et i-pr t-bu Et i-pr t-bu Et i-pr t-bu Et i-pr t-bu G3(MP2)RAD MP HF SVWN BLYP PBE TPSS MPW1PW B3LYP B3P KMLYP B1B MPW1B BB1K MPW1K MPWB1K BR89B94hyb BMK M052X a DFT calculations were performed self-consistently using the G(3df,2p) basis set. The same basis was used for RHF and RMP2 calculations. CCSD(T)/aug-cc-pVTZ reference energies were used for the anionic and cationic reaction series, while CCSD(T)/cc-pVTZ reference energies were used for the neutral and radical reaction series. b Mean Absolute Deviation from CCSD(T). c Maximum Deviation from CCSD(T).
11 Table S2: Electronic reaction energy errors of various DFT methods for reactions (i)-(iv), using (RO)HF/6-311+G(3df,2p) densities for the DFT calculations (Figure 2, kj/mol). a S10 Neutral Radicals Anions Cations MAD b MAXD c Et i-pr t-bu Et i-pr t-bu Et i-pr t-bu Et i-pr t-bu SVWN BLYP PBE TPSS MPWPW B3LYP B3P KMLYP B1B MPW1B BB1K MPW1K MPWB1K BR89B94hyb BMK MO5-2X a DFT calculations were performed on (RO)HF/6-311+G(3df,2p) basis set. The same basis was used for RHF and RMP2 calculations. CCSD(T)/aug-cc-pVTZ reference energies were used for the anionic and cationic reaction series, while CCSD(T)/cc-pVTZ reference energies were used for the neutral and radical reaction series. b Mean Absolute Deviation from CCSD(T). c Maximum Deviation from CCSD(T).
12 Table S3: CCSD(T) reference energies for the 12 reaction test set (kj/mol). Et i-pr t-bu Neutral Radicals Anions Cations a No zero-point energy is included. The frozen-core approximation was used. The cc-pvtz basis was used for the neutral and radical reactions, and the aug-cc-pvtz basis was used for the anionic and cationic reactions. S11
13 3 Optimised geometries The geometries for 12 reaction test set are included below, together with the geometries of the 17 small molecules in Table Geometries Optimised at the B3LYP/6-31G(d) Level for the 12-reaction Test Set CH 4 C H H H H EtH C C H H H H H S12
14 H i-prh C C C H H H H H H H H t-buh H C C C C H S13
15 H H H H H H H H t-buch 3 C C C C C H H H H H H H H H S14
16 H H H Me C H H H Et C C H H H H H S15
17 i-pr H C C C H H H H H H t-bu H C C C C H H H H H S16
18 H H H Geometries Optimised at the B3LYP/6-31+G(d,p) Level for the 12 Reaction Test Set. EtH C C H H H H H H i-prh C C C H S17
19 H H H H H H H t-buh C H C C C H H H H H H H H H S18
20 t-buch 3 C C C C C H H H H H H H H H H H H Me + C H H S19
21 H Et + H C C H H H H i-pr + H C C C H H H H H H S20
22 t-bu + C C C C H H H H H H H H H Me C H H H S21
23 Et C H H H C H H i-pr C H H H C H C H H H S22
24 t-bu C H H H C C C H H H H H H Optimised Geometries of the 17 Small Molecules of Table 1. These molecules were optimised at the B3LYP/6-31G(d) level, except for the anions, which were optimised at the B3LYP/6-31+g(d,p) level. S23
25 H 2 H H LiH Li H BeH 2 H Be H BH 3 B H H H S24
26 CH 4 C H H H H NH 3 N H H H H 2 O H O H S25
27 HF H F CH + 3 C H H H NH + 4 N H H H H H 3 O + O H S26
28 H H CH 3 C H H H OH O H NH 2 N H H S27
29 CH 3 C H H H NH 2 N H H OH O H S28
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