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Pham BQ, Datta D, Gordon MS. PDG: A Composite Method Based on the Resolution of the Identity. J Phys Chem A 2021; 125:9421-9429. [PMID: 34658243 DOI: 10.1021/acs.jpca.1c06186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The Gaussian-3 (G3) composite approach for thermochemical properties is revisited in light of the enhanced computational efficiency and reduced memory costs by applying the resolution-of-the-identity (RI) approximation for two-electron repulsion integrals (ERIs) to the computationally demanding component methods in the G3 model: the energy and gradient computations via the second-order Møller-Plesset perturbation theory (MP2) and the energy computations using the coupled-cluster singles-doubles method augmented with noniterative triples corrections [CCSD(T)]. Efficient implementation of the RI-based methods is achieved by employing a hybrid distributed/shared memory model based on MPI and OpenMP. The new variant of the G3 composite approach based on the RI approximation is termed the RI-G3 scheme, or alternatively the PDG method. The accuracy of the new RI-G3/PDG scheme is compared to the "standard" G3 composite approach that employs the memory-expensive four-center ERIs in the MP2 and CCSD(T) calculations. Taking the computation of the heats of formation of the closed-shell molecules in the G3/99 test set as a test case, it is demonstrated that the RI approximation introduces negligible changes to the mean absolute errors relative to the standard G3 model (less than 0.1 kcal/mol), while the standard deviations remain unaltered. The efficiency and memory requirements for the RI-MP2 and RI-CCSD(T) methods are compared to the standard MP2 and CCSD(T) approaches, respectively. The hybrid MPI/OpenMP-based RI-MP2 energy plus gradient computation is found to attain a 7.5× speedup over the standard MP2 calculations. For the most demanding CCSD(T) calculations, the application of the RI approximation is found to nearly halve the memory demand, confer about a 4-5× speedup for the CCSD iterations, and reduce the computational time for the compute-intensive triples correction step by several hours.
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Patel P, Wilson AK. Domain-based local pair natural orbital methods within the correlation consistent composite approach. J Comput Chem 2019; 41:800-813. [PMID: 31891196 DOI: 10.1002/jcc.26129] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 10/29/2019] [Accepted: 12/01/2019] [Indexed: 01/15/2023]
Abstract
Ab initio composite approaches have been utilized to model and predict main group thermochemistry within 1 kcal mol-1 , on average, from well-established reliable experiments, primarily for molecules with less than 30 atoms. For molecules of increasing size and complexity, such as biomolecular complexes, composite methodologies have been limited in their application. Therefore, the domain-based local pair natural orbital (DLPNO) methods have been implemented within the correlation consistent composite approach (ccCA) framework, namely DLPNO-ccCA, to reduce the computational cost (disk space, CPU (central processing unit) time, memory) and predict energetic properties such as enthalpies of formation, noncovalent interactions, and conformation energies for organic biomolecular complexes including one of the largest molecules examined via composite strategies, within 1 kcal mol-1 , after calibration with 119 molecules and a set of linear alkanes. © 2019 Wiley Periodicals, Inc.
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Affiliation(s)
- Prajay Patel
- Department of Chemistry, Michigan State University, East Lansing, Michigan, 48824
| | - Angela K Wilson
- Department of Chemistry, Michigan State University, East Lansing, Michigan, 48824
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Peterson C, Penchoff D, Wilson A. Prediction of Thermochemical Properties Across the Periodic Table. ANNUAL REPORTS IN COMPUTATIONAL CHEMISTRY 2016. [DOI: 10.1016/bs.arcc.2016.04.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Kesharwani MK, Brauer B, Martin JML. Frequency and Zero-Point Vibrational Energy Scale Factors for Double-Hybrid Density Functionals (and Other Selected Methods): Can Anharmonic Force Fields Be Avoided? J Phys Chem A 2014; 119:1701-14. [DOI: 10.1021/jp508422u] [Citation(s) in RCA: 349] [Impact Index Per Article: 34.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Manoj K. Kesharwani
- Department
of Organic Chemistry, Weizmann Institute of Science, 76100 Reḥovot, Israel
| | - Brina Brauer
- Department
of Organic Chemistry, Weizmann Institute of Science, 76100 Reḥovot, Israel
| | - Jan M. L. Martin
- Department
of Organic Chemistry, Weizmann Institute of Science, 76100 Reḥovot, Israel
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Riojas AG, Wilson AK. Solv-ccCA: Implicit Solvation and the Correlation Consistent Composite Approach for the Determination of pKa. J Chem Theory Comput 2014; 10:1500-10. [PMID: 26580366 DOI: 10.1021/ct400908z] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Direct theoretical methods are advantageous for the prediction of pKa, as relative methods rely upon the experimental values of reference acid molecules that can limit application of the method to well-characterized systems. Here, a direct route is introduced, which incorporates the SMD universal solvation model1 within the correlation consistent Composite Approach (ccCA). This Solv-ccCA methodology has been used for the prediction of theoretical pKa values for nitrogen-containing species to within a mean absolute deviation (MAD) of 1.0 pKa unit from experimental values by utilizing a thermodynamic cycle that combines gas-phase and solution-phase calculations. Several density functionals, including B3LYP, B97-1, B97-2, B98, BMK, M06, and M06-2X, were also evaluated for use with SMD and for comparison to Solv-ccCA.
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Affiliation(s)
- Amanda G Riojas
- Department of Chemistry and Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas , Denton, Texas 76203-5017, United States
| | - Angela K Wilson
- Department of Chemistry and Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas , Denton, Texas 76203-5017, United States
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Mahler A, Wilson AK. Explicitly Correlated Methods within the ccCA Methodology. J Chem Theory Comput 2013; 9:1402-7. [PMID: 26587602 DOI: 10.1021/ct300956e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The prediction of energetic properties within "chemical accuracy" (1 kcal mol(-1) from well-established experiment) can be a major challenge in computational quantum chemistry due to the computational requirements (computer time, memory, and disk space) needed to achieve this level of accuracy. Methodologies such as coupled cluster with single, double, and perturbative triple excitations (CCSD(T)) combined with very large basis sets are often required to reach this level of accuracy. Unfortunately, such calculations quickly become cost prohibitive as system size increases. Our group has developed an ab initio composite method, the correlation consistent Composite Approach (ccCA), which enables such accuracy to be possible, on average, but at reduced computational cost as compared with CCSD(T) in combination with a large basis set. While ccCA has proven quite useful, computational bottlenecks still occur. In this study, the means to reduce the computational cost of ccCA without compromising accuracy by utilizing explicitly correlated methods within ccCA have been considered, and an alternative formulation is described.
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Affiliation(s)
- Andrew Mahler
- University of North Texas , Department of Chemistry and Center for Advanced Scientific Computing and Modeling (CASCaM), Denton, Texas 76203-5017, United States
| | - Angela K Wilson
- University of North Texas , Department of Chemistry and Center for Advanced Scientific Computing and Modeling (CASCaM), Denton, Texas 76203-5017, United States
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Laury ML, Wilson AK. Examining the heavyp-block with a pseudopotential-based composite method: Atomic and molecular applications of rp-ccCA. J Chem Phys 2012; 137:214111. [DOI: 10.1063/1.4768420] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Riojas AG, John JR, Williams TG, Wilson AK. Proton affinities of deoxyribonucleosides via the ONIOM-ccCA methodology. J Comput Chem 2012; 33:2590-601. [DOI: 10.1002/jcc.23102] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Accepted: 08/04/2012] [Indexed: 11/11/2022]
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Karton A, Martin JM. Explicitly correlated benchmark calculations on C8H8 isomer energy separations: how accurate are DFT, double-hybrid, and composite ab initio procedures? Mol Phys 2012. [DOI: 10.1080/00268976.2012.698316] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Amir Karton
- a School of Chemistry , University of Sydney , Sydney , NSW 2006 , Australia
| | - Jan M.L. Martin
- b Department of Chemistry , University of North Texas , Denton , TX 76203-5017 , USA
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Prediction of hydrocarbon enthalpies of formation by various thermochemical schemes. J Comput Chem 2012; 33:2032-42. [DOI: 10.1002/jcc.23038] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2011] [Revised: 05/11/2012] [Accepted: 05/19/2012] [Indexed: 11/07/2022]
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Chemical accuracy in ab initio thermochemistry and spectroscopy: current strategies and future challenges. Theor Chem Acc 2012. [DOI: 10.1007/s00214-011-1079-5] [Citation(s) in RCA: 275] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Dixon DA, Feller D, Peterson KA. A Practical Guide to Reliable First Principles Computational Thermochemistry Predictions Across the Periodic Table. ANNUAL REPORTS IN COMPUTATIONAL CHEMISTRY VOLUME 8 2012. [DOI: 10.1016/b978-0-444-59440-2.00001-6] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Laury ML, DeYonker NJ, Jiang W, Wilson AK. A pseudopotential-based composite method: The relativistic pseudopotential correlation consistent composite approach for molecules containing 4d transition metals (Y–Cd). J Chem Phys 2011; 135:214103. [DOI: 10.1063/1.3662415] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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Karton A, Daon S, Martin JM. W4-11: A high-confidence benchmark dataset for computational thermochemistry derived from first-principles W4 data. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.05.007] [Citation(s) in RCA: 263] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Jiang W, Wilson AK. Multireference composite approaches for the accurate study of ground and excited electronic states: C2, N2, and O2. J Chem Phys 2011; 134:034101. [DOI: 10.1063/1.3514031] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Liu C, Munjanja L, Cundari TR, Wilson AK. Theoretical Studies on the Catalysis of the Reverse Water−Gas Shift Reaction Using First-Row Transition Metal β-Diketiminato Complexes. J Phys Chem A 2010; 114:6207-16. [DOI: 10.1021/jp911616y] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Cong Liu
- Department of Chemistry and Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, Denton, Texas 76203-5070
| | - Lloyd Munjanja
- Department of Chemistry and Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, Denton, Texas 76203-5070
| | - Thomas R. Cundari
- Department of Chemistry and Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, Denton, Texas 76203-5070
| | - Angela K. Wilson
- Department of Chemistry and Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, Denton, Texas 76203-5070
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