Published 2015 | Version public
Journal Article

Advances in molecular quantum chemistry contained in the Q-Chem 4 program package

Creators

  • 1. ROR icon Q Chem (United States)
  • 2. ROR icon University of Southern California
  • 3. ROR icon University of California, Berkeley
  • 4. ROR icon Australian National University
  • 5. ROR icon Heidelberg University
  • 6. ROR icon Ludwig-Maximilians-Universität München
  • 7. ROR icon The Ohio State University
  • 8. ROR icon National Chemical Laboratory
  • 9. ROR icon Purdue University West Lafayette
  • 10. ROR icon Technion – Israel Institute of Technology
  • 11. ROR icon Xiamen University
  • 12. ROR icon Middle Tennessee State University
  • 13. ROR icon Pohang University of Science and Technology
  • 14. ROR icon Rice University
  • 15. ROR icon University of Utah
  • 16. ROR icon University of South Florida
  • 17. ROR icon University of Michigan–Ann Arbor
  • 18. ROR icon University of Pittsburgh
  • 19. ROR icon University of Pennsylvania
  • 20. ROR icon University of California, Riverside
  • 21. ROR icon Technische Universität Braunschweig
  • 22. ROR icon Boston University
  • 23. ROR icon Pittsburgh Supercomputing Center
  • 24. ROR icon University of the Basque Country
  • 25. ROR icon University of Canterbury
  • 26. ROR icon University of Nottingham
  • 27. ROR icon University of the Pacific
  • 28. ROR icon Harvard University
  • 29. ROR icon National Institutes of Health
  • 30. ROR icon Ghent University
  • 31. ROR icon Georgia Institute of Technology
  • 32. ROR icon Korea Advanced Institute of Science and Technology
  • 33. ROR icon Massachusetts Institute of Technology
  • 34. ROR icon Bethel University
  • 35. ROR icon Monmouth University
  • 36. ROR icon Western Washington University
  • 37. ROR icon University of Nantes
  • 38. ROR icon University of Nevada, Las Vegas
  • 39. ROR icon Fritz Haber Institute of the Max Planck Society
  • 40. ROR icon Hebrew University of Jerusalem
  • 41. ROR icon Birla Institute of Technology and Science, Pilani
  • 42. ROR icon National Taiwan University
  • 43. ROR icon University of Minnesota
  • 44. ROR icon Princeton University
  • 45. ROR icon University of Notre Dame
  • 46. ROR icon Ohio Northern University
  • 47. ROR icon King's College London
  • 48. ROR icon University of Cambridge
  • 49. ROR icon Institute of Chemistry, Academia Sinica
  • 50. ROR icon Fudan University
  • 51. ROR icon California Institute of Technology
  • 52. ROR icon Iowa State University
  • 53. ROR icon University of Georgia
  • 54. ROR icon Kent State University
  • 55. ROR icon University at Buffalo, State University of New York
  • 56. ROR icon Mississippi State University
  • 57. ROR icon University of South Carolina

Abstract

A summary of the technical advances that are incorporated in the fourth major release of the Q-Chem quantum chemistry program is provided, covering approximately the last seven years. These include developments in density functional theory methods and algorithms, nuclear magnetic resonance (NMR) property evaluation, coupled cluster and perturbation theories, methods for electronically excited and open-shell species, tools for treating extended environments, algorithms for walking on potential surfaces, analysis tools, energy and electron transfer modelling, parallel computing capabilities, and graphical user interfaces. In addition, a selection of example case studies that illustrate these capabilities is given. These include extensive benchmarks of the comparative accuracy of modern density functionals for bonded and non-bonded interactions, tests of attenuated second order Møller–Plesset (MP2) methods for intermolecular interactions, a variety of parallel performance benchmarks, and tests of the accuracy of implicit solvation models. Some specific chemical examples include calculations on the strongly correlated Cr_2 dimer, exploring zeolite-catalysed ethane dehydrogenation, energy decomposition analysis of a charged ter-molecular complex arising from glycerol photoionisation, and natural transition orbitals for a Frenkel exciton state in a nine-unit model of a self-assembling nanotube.

Additional Information

© 2016 Informa UK Limited. Received 29 May 2014, Accepted 01 Aug 2014, Published online: 03 Sep 2014.

Additional details

Identifiers

Eprint ID
73297
DOI
10.1080/00268976.2014.952696
Resolver ID
CaltechAUTHORS:20170106-112949955

Dates

Created
2017-01-06
Created from EPrint's datestamp field
Updated
2023-03-16
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