Search

Your search keyword '"Gunina, Anastasia O."' showing total 8 results
Start Over Author "Gunina, Anastasia O."
8 results on '"Gunina, Anastasia O."'

1. Software for the frontiers of quantum chemistry: An overview of developments in the Q-Chem 5 package

Author

Epifanovsky, Evgeny, Gilbert, Andrew TB, Feng, Xintian, Lee, Joonho, Mao, Yuezhi, Mardirossian, Narbe, Pokhilko, Pavel, White, Alec F, Coons, Marc P, Dempwolff, Adrian L, Gan, Zhengting, Hait, Diptarka, Horn, Paul R, Jacobson, Leif D, Kaliman, Ilya, Kussmann, Jörg, Lange, Adrian W, Lao, Ka Un, Levine, Daniel S, Liu, Jie, McKenzie, Simon C, Morrison, Adrian F, Nanda, Kaushik D, Plasser, Felix, Rehn, Dirk R, Vidal, Marta L, You, Zhi-Qiang, Zhu, Ying, Alam, Bushra, Albrecht, Benjamin J, Aldossary, Abdulrahman, Alguire, Ethan, Andersen, Josefine H, Athavale, Vishikh, Barton, Dennis, Begam, Khadiza, Behn, Andrew, Bellonzi, Nicole, Bernard, Yves A, Berquist, Eric J, Burton, Hugh GA, Carreras, Abel, Carter-Fenk, Kevin, Chakraborty, Romit, Chien, Alan D, Closser, Kristina D, Cofer-Shabica, Vale, Dasgupta, Saswata, de Wergifosse, Marc, Deng, Jia, Diedenhofen, Michael, Do, Hainam, Ehlert, Sebastian, Fang, Po-Tung, Fatehi, Shervin, Feng, Qingguo, Friedhoff, Triet, Gayvert, James, Ge, Qinghui, Gidofalvi, Gergely, Goldey, Matthew, Gomes, Joe, González-Espinoza, Cristina E, Gulania, Sahil, Gunina, Anastasia O, Hanson-Heine, Magnus WD, Harbach, Phillip HP, Hauser, Andreas, Herbst, Michael F, Vera, Mario Hernández, Hodecker, Manuel, Holden, Zachary C, Houck, Shannon, Huang, Xunkun, Hui, Kerwin, Huynh, Bang C, Ivanov, Maxim, Jász, Ádám, Ji, Hyunjun, Jiang, Hanjie, Kaduk, Benjamin, Kähler, Sven, Khistyaev, Kirill, Kim, Jaehoon, Kis, Gergely, Klunzinger, Phil, Koczor-Benda, Zsuzsanna, Koh, Joong Hoon, Kosenkov, Dimitri, Koulias, Laura, Kowalczyk, Tim, Krauter, Caroline M, Kue, Karl, Kunitsa, Alexander, Kus, Thomas, Ladjánszki, István, Landau, Arie, Lawler, Keith V, Lefrancois, Daniel, and Lehtola, Susi

Subjects
Physical Sciences, Chemical Sciences, Atomic, Molecular and Optical Physics, Physical Chemistry, Engineering, Chemical Physics, Chemical sciences, Physical sciences
Abstract

This article summarizes technical advances contained in the fifth major release of the Q-Chem quantum chemistry program package, covering developments since 2015. A comprehensive library of exchange-correlation functionals, along with a suite of correlated many-body methods, continues to be a hallmark of the Q-Chem software. The many-body methods include novel variants of both coupled-cluster and configuration-interaction approaches along with methods based on the algebraic diagrammatic construction and variational reduced density-matrix methods. Methods highlighted in Q-Chem 5 include a suite of tools for modeling core-level spectroscopy, methods for describing metastable resonances, methods for computing vibronic spectra, the nuclear-electronic orbital method, and several different energy decomposition analysis techniques. High-performance capabilities including multithreaded parallelism and support for calculations on graphics processing units are described. Q-Chem boasts a community of well over 100 active academic developers, and the continuing evolution of the software is supported by an "open teamware" model and an increasingly modular design.

Published
2021

2. To Be or Not To Be a Molecular Ion: The Role of the Solvent in Photoionization of Arginine

Author

Barrozo, Alexandre, Xu, Bo, Gunina, Anastasia O, Jacobs, Michael I, Wilson, Kevin, Kostko, Oleg, Ahmed, Musahid, and Krylov, Anna I

Subjects
Physical Sciences, Chemical Sciences, Atomic, Molecular and Optical Physics, Physical Chemistry, CSD-04-GPCP-A, CSD-46-All CSGB, Chemical sciences, Physical sciences
Abstract

Application of photoionization mass spectroscopy, a technique capable of assessing protonation states in complex molecules in the gas phase, is challenging for arginine due to its fragility. We report photoionization efficiencies in the valence region of aqueous aerosol particles produced from arginine solutions under various pH and vaporization conditions. By using ab initio calculations, we investigate the stability of different conformers. Our results show that neutral arginine fragments upon ionization in the gas phase but solvation stabilizes the molecular ion, resulting in different photoionization dynamics. We also report the valence-band photoelectron spectra of the aerosol solutions obtained at different pH values.

Published
2019

3. Recent developments in the general atomic and molecular electronic structure system.

Author

Barca, Giuseppe M. J., Bertoni, Colleen, Carrington, Laura, Datta, Dipayan, De Silva, Nuwan, Deustua, J. Emiliano, Fedorov, Dmitri G., Gour, Jeffrey R., Gunina, Anastasia O., Guidez, Emilie, Harville, Taylor, Irle, Stephan, Ivanic, Joe, Kowalski, Karol, Leang, Sarom S., Li, Hui, Li, Wei, Lutz, Jesse J., Magoulas, Ilias, and Mato, Joani

Subjects
ATOMIC structure, MOLECULAR orbitals, ELECTRONIC systems, PERTURBATION theory, PSEUDOPOTENTIAL method
Abstract

A discussion of many of the recently implemented features of GAMESS (General Atomic and Molecular Electronic Structure System) and LibCChem (the C++ CPU/GPU library associated with GAMESS) is presented. These features include fragmentation methods such as the fragment molecular orbital, effective fragment potential and effective fragment molecular orbital methods, hybrid MPI/OpenMP approaches to Hartree–Fock, and resolution of the identity second order perturbation theory. Many new coupled cluster theory methods have been implemented in GAMESS, as have multiple levels of density functional/tight binding theory. The role of accelerators, especially graphical processing units, is discussed in the context of the new features of LibCChem, as it is the associated problem of power consumption as the power of computers increases dramatically. The process by which a complex program suite such as GAMESS is maintained and developed is considered. Future developments are briefly summarized. [ABSTRACT FROM AUTHOR]

Published
2020
Full Text
View/download PDF

8. Software for the frontiers of quantum chemistry : An overview of developments in the Q-Chem 5 package

Author

Epifanovsky, Evgeny, Gilbert, Andrew T. B., Feng, Xintian, Lee, Joonho, Mao, Yuezhi, Mardirossian, Narbe, Pokhilko, Pavel, White, Alec F., Coons, Marc P., Dempwolff, Adrian L., Gan, Zhengting, Hait, Diptarka, Horn, Paul R., Jacobson, Leif D., Kaliman, Ilya, Kussmann, Jörg, Lange, Adrian W., Lao, Ka Un, Levine, Daniel S., Liu, Jie, McKenzie, Simon C., Morrison, Adrian F., Nanda, Kaushik D., Plasser, Felix, Rehn, Dirk R., Vidal, Marta L., You, Zhi-Qiang, Zhu, Ying, Alam, Bushra, Albrecht, Benjamin J., Aldossary, Abdulrahman, Alguire, Ethan, Andersen, Josefine H., Athavale, Vishikh, Barton, Dennis, Begam, Khadiza, Behn, Andrew, Bellonzi, Nicole, Bernard, Yves A., Berquist, Eric J., Burton, Hugh G. A., Carreras, Abel, Carter-Fenk, Kevin, Chakraborty, Romit, Chien, Alan D., Closser, Kristina D., Cofer-Shabica, Vale, Dasgupta, Saswata, de Wergifosse, Marc, Deng, Jia, Diedenhofen, Michael, Do, Hainam, Ehlert, Sebastian, Fang, Po-Tung, Fatehi, Shervin, Feng, Qingguo, Friedhoff, Triet, Gayvert, James, Ge, Qinghui, Gidofalvi, Gergely, Goldey, Matthew, Gomes, Joe, González-Espinoza, Cristina E., Gulania, Sahil, Gunina, Anastasia O., Hanson-Heine, Magnus W. D., Harbach, Phillip H. P., Hauser, Andreas, Herbst, Michael F., Hernández Vera, Mario, Hodecker, Manuel, Holden, Zachary C., Houck, Shannon, Huang, Xunkun, Hui, Kerwin, Huynh, Bang C., Ivanov, Maxim, Jász, Ádám, Ji, Hyunjun, Jiang, Hanjie, Kaduk, Benjamin, Kähler, Sven, Khistyaev, Kirill, Kim, Jaehoon, Kis, Gergely, Klunzinger, Phil, Koczor-Benda, Zsuzsanna, Koh, Joong Hoon, Kosenkov, Dimitri, Koulias, Laura, Kowalczyk, Tim, Krauter, Caroline M., Kue, Karl, Kunitsa, Alexander, Kus, Thomas, Ladjánszki, István, Landau, Arie, Lawler, Keith V., Lefrancois, Daniel, Lehtola, Susi, Li, Run R., Li, Yi-Pei, Liang, Jiashu, Liebenthal, Marcus, Lin, Hung-Hsuan, Lin, You-Sheng, Liu, Fenglai, Liu, Kuan-Yu, Loipersberger, Matthias, Luenser, Arne, Manjanath, Aaditya, Manohar, Prashant, Mansoor, Erum, Manzer, Sam F., Mao, Shan-Ping, Marenich, Aleksandr V., Markovich, Thomas, Mason, Stephen, Maurer, Simon A., McLaughlin, Peter F., Menger, Maximilian F. S. J., Mewes, Jan-Michael, Mewes, Stefanie A., Morgante, Pierpaolo, Mullinax, J. Wayne, Oosterbaan, Katherine J., Paran, Garrette, Paul, Alexander C., Paul, Suranjan K., Pavošević, Fabijan, Pei, Zheng, Prager, Stefan, Proynov, Emil I., Rák, Ádám, Ramos-Cordoba, Eloy, Rana, Bhaskar, Rask, Alan E., Rettig, Adam, Richard, Ryan M., Rob, Fazle, Rossomme, Elliot, Scheele, Tarek, Scheurer, Maximilian, Schneider, Matthias, Sergueev, Nickolai, Sharada, Shaama M., Skomorowski, Wojciech, Small, David W., Stein, Christopher J., Su, Yu-Chuan, Sundstrom, Eric J., Tao, Zhen, Thirman, Jonathan, Tornai, Gábor J., Tsuchimochi, Takashi, Tubman, Norm M., Veccham, Srimukh Prasad, Vydrov, Oleg, Wenzel, Jan, Witte, Jon, Yamada, Atsushi, Yao, Kun, Yeganeh, Sina, Yost, Shane R., Zech, Alexander, Zhang, Igor Ying, Zhang, Xing, Zhang, Yu, Zuev, Dmitry, Aspuru-Guzik, Alán, Bell, Alexis T., Besley, Nicholas A., Bravaya, Ksenia B., Brooks, Bernard R., Casanova, David, Chai, Jeng-Da, Coriani, Sonia, Cramer, Christopher J., Cserey, György, DePrince, A. Eugene, DiStasio, Robert A., Dreuw, Andreas, Dunietz, Barry D., Furlani, Thomas R., Goddard, William A., Hammes-Schiffer, Sharon, Head-Gordon, Teresa, Hehre, Warren J., Hsu, Chao-Ping, Jagau, Thomas-C., Jung, Yousung, Klamt, Andreas, Kong, Jing, Lambrecht, Daniel S., Liang, WanZhen, Mayhall, Nicholas J., McCurdy, C. William, Neaton, Jeffrey B., Ochsenfeld, Christian, Parkhill, John A., Peverati, Roberto, Rassolov, Vitaly A., Shao, Yihan, Slipchenko, Lyudmila V., Stauch, Tim, Steele, Ryan P., Subotnik, Joseph E., Thom, Alex J. W., Tkatchenko, Alexandre, Truhlar, Donald G., Van Voorhis, Troy, Wesolowski, Tomasz A., Whaley, K. Birgitta, Woodcock, H. Lee, Zimmerman, Paul M., Faraji, Shirin, Gill, Peter M. W., Head-Gordon, Martin, Herbert, John M., and Krylov, Anna I.

Subjects
3. Good health
Abstract

The journal of chemical physics 155(8), 084801 (2021). doi:10.1063/5.0055522, Published by American Institute of Physics, Melville, NY

Catalog

Books, media, physical & digital resources
See catalog results