Overview of Developments in the MRCC Program System Article Swipe
YOU?
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· 2025
· Open Access
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· DOI: https://doi.org/10.1021/acs.jpca.4c07807
mrcc is a versatile suite of quantum chemistry programs designed for accurate ab initio and density functional theory (DFT) calculations. This contribution outlines the general features and recent developments of the package. The most popular features include the open-ended coupled-cluster (CC) code, state-of-the-art CC singles and doubles with perturbative triples [CCSD(T)], second-order algebraic-diagrammatic construction, and combined wave function theory-DFT approaches. Cost-reduction techniques are implemented, such as natural orbital (NO), local NO (LNO), and natural auxiliary function approximations, which significantly decrease the computational demands of these methods. This paper also details the method developments made over the past five years, including efficient schemes to approach the complete basis set limit for CCSD(T) and the extension of our LNO-CCSD(T) method to open-shell systems. Additionally, we discuss the new approximations introduced to accelerate the self-consistent field procedure and the cost-reduction techniques elaborated for analytic gradient calculations at various levels. Furthermore, embedding techniques and novel range-separated double-hybrid functionals are presented for excited-state calculations, while the extension of the theories established to describe core excitations and ionized states is also discussed. For academic purposes, the program and its source code are available free of charge, and its commercial use is also facilitated.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1021/acs.jpca.4c07807
- OA Status
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- Cited By
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- Related Works
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- OpenAlex ID
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Raw OpenAlex JSON
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https://doi.org/10.1021/acs.jpca.4c07807Digital Object Identifier
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Overview of Developments in the MRCC Program SystemWork title
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articleOpenAlex work type
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enPrimary language
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2025Year of publication
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2025-02-17Full publication date if available
- Authors
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Dávid Mester, Péter R. Nagy, József Csóka, László Gyevi‐Nagy, P. Bernát Szabó, Réka A. Horváth, Klára Petrov, Bence Hégely, Bence Ladóczki, Gyula Samu, Balázs D. Lőrincz, Mihály KállayList of authors in order
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https://doi.org/10.1021/acs.jpca.4c07807Publisher landing page
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hybridOpen access status per OpenAlex
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https://doi.org/10.1021/acs.jpca.4c07807Direct OA link when available
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33Total citation count in OpenAlex
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2025: 33Per-year citation counts (last 5 years)
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10Other works algorithmically related by OpenAlex
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