PMID- 27077844 OWN - NLM STAT- MEDLINE DCOM- 20161216 LR - 20240325 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 17 IP - 4 DP - 2016 Apr 11 TI - Exploring the Interaction Natures in Plutonyl (VI) Complexes with Topological Analyses of Electron Density. PG - 414 LID - 10.3390/ijms17040414 [doi] LID - 414 AB - The interaction natures between Pu and different ligands in several plutonyl (VI) complexes are investigated by performing topological analyses of electron density. The geometrical structures in both gaseous and aqueous phases are obtained with B3LYP functional, and are generally in agreement with available theoretical and experimental results when combined with all-electron segmented all-electron relativistic contracted (SARC) basis set. The Pu- O y l bond orders show significant linear dependence on bond length and the charge of oxygen atoms in plutonyl moiety. The closed-shell interactions were identified for Pu-Ligand bonds in most complexes with quantum theory of atoms in molecules (QTAIM) analyses. Meanwhile, we found that some Pu-Ligand bonds, like Pu-OH(-), show weak covalent. The interactive nature of Pu-ligand bonds were revealed based on the interaction quantum atom (IQA) energy decomposition approach, and our results indicate that all Pu-Ligand interactions is dominated by the electrostatic attraction interaction as expected. Meanwhile it is also important to note that the quantum mechanical exchange-correlation contributions can not be ignored. By means of the non-covalent interaction (NCI) approach it has been found that some weak and repulsion interactions existed in plutonyl(VI) complexes, which can not be distinguished by QTAIM, can be successfully identified. FAU - Du, Jiguang AU - Du J AD - College of Physical Science and Technology, Sichuan University, Chengdu 610064, China. dujg@scu.edu.cn. FAU - Sun, Xiyuan AU - Sun X AD - College of Sciences, Sichuan Agricultural University, Ya'an 625014, China. sunxy@sicau.edu.cn. FAU - Jiang, Gang AU - Jiang G AD - Institutes of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China. gjiang@scu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20160411 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (Ligands) RN - 0 (Organometallic Compounds) RN - 059QF0KO0R (Water) RN - 53023GN24M (Plutonium) SB - IM MH - Electrons MH - Ligands MH - Models, Molecular MH - Molecular Conformation MH - Organometallic Compounds/*chemistry MH - Plutonium/*chemistry MH - Quantum Theory MH - Water/chemistry PMC - PMC4848887 OTO - NOTNLM OT - NCI OT - QTAIM OT - chemical bondings OT - plutonyl complexes EDAT- 2016/04/15 06:00 MHDA- 2016/12/17 06:00 PMCR- 2016/04/01 CRDT- 2016/04/15 06:00 PHST- 2015/11/15 00:00 [received] PHST- 2016/01/13 00:00 [revised] PHST- 2016/01/15 00:00 [accepted] PHST- 2016/04/15 06:00 [entrez] PHST- 2016/04/15 06:00 [pubmed] PHST- 2016/12/17 06:00 [medline] PHST- 2016/04/01 00:00 [pmc-release] AID - ijms17040414 [pii] AID - ijms-17-00414 [pii] AID - 10.3390/ijms17040414 [doi] PST - epublish SO - Int J Mol Sci. 2016 Apr 11;17(4):414. doi: 10.3390/ijms17040414.