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Lei XP, Wu QY, Wang CZ, Lan JH, Chai ZF, Nie CM, Shi WQ. Theoretical Insights into the Substitution Effect of Phenanthroline Derivatives on Am(III)/Eu(III) Separation. Inorg Chem 2023; 62:2705-2714. [PMID: 36724403 DOI: 10.1021/acs.inorgchem.2c03823] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Separation of trivalent actinides (An(III)) and lanthanides (Ln(III)) poses a huge challenge in the reprocessing of spent nuclear fuel due to their similar chemical properties. N,N'-Diethyl-N,N'-ditolyl-2,9-diamide-1,10-phenanthroline (Et-Tol-DAPhen) is a potential ligand for the extraction of An(III) from Ln(III), while there are still few reports on the effect of its substituent including electron-withdrawing and electron-donating groups on An(III)/Ln(III) separation. Herein, the interaction of Et-Tol-DAPhen ligands modified by the electron-withdrawing groups (CF3, Br) and electron-donating groups (OH) with Am(III)/Eu(III) ions was investigated using scalar relativistic density functional theory (DFT). The analyses of bond order, quantum theory of atoms in molecules (QTAIM), and molecular orbital (MO) indicate that the substitution groups have a slight effect on the electronic structures of the [M(L-X)(NO3)3] (X = CF3, Br, OH) complexes. However, the thermodynamic results suggest that a ligand with the electron-donating group (L-OH) improves the extraction ability of metal ions, and the ligand modified by the electron-withdrawing group (L-Br) has the best Am(III)/Eu(III) selectivity. This work could render new insights into understanding the effect of electron-withdrawing and electron-donating groups in tuning the selectivity of Et-Tol-DAPhen derivatives and pave the way for designing new ligands modified by substituted groups with better extraction ability and An(III)/Ln(III) selectivity.
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Affiliation(s)
- Xia-Ping Lei
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China.,Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Qun-Yan Wu
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Cong-Zhi Wang
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Jian-Hui Lan
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi-Fang Chai
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Chang-Ming Nie
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Wei-Qun Shi
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
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Abigail Jennifer G, Ebenezer C, Vijay Solomon R. Selective Complexation of trivalent Americium over Europium with substituted Triazolebipyridine-based Ligand in High Level-Liquid Waste- A DFT investigation. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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3
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Ebenezer C, Vijay Solomon R. Preorganization of N, O-hybrid phosphine oxide chelators for effective extraction of trivalent Am/Eu ions - A computational study. NEW J CHEM 2022. [DOI: 10.1039/d1nj06029e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N, O-hybrid phosphine oxide ligands with N-heterocyclic cores are the advanced extractants for extracting actinides over lanthanides. Yet, the challenging task in designing an efficient hybrid ligand is tracing the...
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Does the length of the alkyl chain affect the complexation and selectivity of phenanthroline-derived phosphonate ligands? – Answers from DFT calculations. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115533] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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Impact of Coordination Modes of N‐Donor Ligands on Am(III)/Eu(III) Separation in Nuclear Waste Water Treatment – A DFT Study. ChemistrySelect 2021. [DOI: 10.1002/slct.202102543] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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6
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Lipin R, Ebenezer C, Solomon RV. Theoretical evaluation of mixed N-, O- donor based TMPhenDA ligand in selective complexation with actinide (III) ions over lanthanide (III) ions. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115819] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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7
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Ebenezer C, Solomon RV. Insights into the Extraction of Actinides from Lanthanides Using 3,3’‐Dimethoxy‐phenyl‐bis‐1,2,4‐triazinyl‐2,6‐pyridine Ligand – A DFT Study. ChemistrySelect 2020. [DOI: 10.1002/slct.202003240] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Cheriyan Ebenezer
- Department of Chemistry Madras Christian College (Autonomous) Affiliated to the University of Madras) Chennai 600 059 India
| | - Rajadurai Vijay Solomon
- Department of Chemistry Madras Christian College (Autonomous) Affiliated to the University of Madras) Chennai 600 059 India
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8
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Frohlich MT, Anderson KJ, Ugrinov A, Boudjouk P. Breaking Carbon-Chlorine Bonds with the Unconventional Lewis Acid Dodecachlorocyclohexasilane. Inorg Chem 2018; 57:14463-14466. [PMID: 30407799 DOI: 10.1021/acs.inorgchem.8b00631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
c-Si6Cl12 functions as a Lewis acid strong enough to abstract chloride ions from 2 mol of triphenylchloromethane to form the salt [Tr+]2[Si6Cl142-]. This is the first example of a Lewis acid "hole" breaking a carbon-halogen bond.
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Affiliation(s)
- Matthew T Frohlich
- Department of Chemistry and Biochemistry , North Dakota State University , Fargo , North Dakota 58108 , United States
| | - Kenneth J Anderson
- Department of Chemistry and Biochemistry , North Dakota State University , Fargo , North Dakota 58108 , United States
| | - Angel Ugrinov
- Department of Chemistry and Biochemistry , North Dakota State University , Fargo , North Dakota 58108 , United States
| | - Philip Boudjouk
- Department of Chemistry and Biochemistry , North Dakota State University , Fargo , North Dakota 58108 , United States
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Bauzá A, Frontera A. Tetrel Bonding Interactions in Perchlorinated Cyclopenta- and Cyclohexatetrelanes: A Combined DFT and CSD Study. Molecules 2018; 23:molecules23071770. [PMID: 30029469 PMCID: PMC6100242 DOI: 10.3390/molecules23071770] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 07/15/2018] [Accepted: 07/15/2018] [Indexed: 11/23/2022] Open
Abstract
In this manuscript, we combined DFT calculations (PBE0-D3/def2-TZVP level of theory) and a Cambridge Structural Database (CSD) survey to evaluate the ability of perchlorinated cyclopenta- and cyclohexatetrelanes in establishing tetrel bonding interactions. For this purpose, we used Tr5Cl10 and Tr6Cl12 (Tr = Si and Ge) and HCN, HF, OH− and Cl− as electron donor entities. Furthermore, we performed an Atoms in Molecules (AIM) analysis to further describe and characterize the interactions studied herein. A survey of crystal structures in the CSD reveals that close contacts between Si and lone-pair-possessing atoms are quite common and oriented along the extension of the covalent bond formed by the silicon with the halogen atom.
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Affiliation(s)
- Antonio Bauzá
- Department of Chemistry, Universitat de les Illes Balears, Crta de Valldemossa km 7.5, 07122 Palma de Mallorca (Baleares), Spain.
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears, Crta de Valldemossa km 7.5, 07122 Palma de Mallorca (Baleares), Spain.
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Teichmann J, Köstler B, Tillmann J, Moxter M, Kupec R, Bolte M, Lerner HW, Wagner M. Halide-Ion Diadducts of Perhalogenated Cyclopenta- and Cyclohexasilanes. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800145] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Julian Teichmann
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Str. 7 60438 Frankfurt Germany
| | - Benedikt Köstler
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Str. 7 60438 Frankfurt Germany
| | - Jan Tillmann
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Str. 7 60438 Frankfurt Germany
| | - Maximilian Moxter
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Str. 7 60438 Frankfurt Germany
| | - Robin Kupec
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Str. 7 60438 Frankfurt Germany
| | - Michael Bolte
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Str. 7 60438 Frankfurt Germany
| | - Hans-Wolfram Lerner
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Str. 7 60438 Frankfurt Germany
| | - Matthias Wagner
- Institut für Anorganische Chemie; Goethe-Universität Frankfurt; Max-von-Laue-Str. 7 60438 Frankfurt Germany
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11
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Pokhodnya K, Anderson K, Kilina S, Dandu N, Boudjouk P. Mechanism of Charged, Neutral, Mono-, and Polyatomic Donor Ligand Coordination to Perchlorinated Cyclohexasilane (Si 6Cl 12). J Phys Chem A 2018; 122:4067-4075. [PMID: 29589757 DOI: 10.1021/acs.jpca.7b11052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the detailed computational study of several perchlorinated cyclohexasilane (Si6Cl12)-based inverse sandwich compounds. It was found that regardless of the donor ligand size and charge, for example, Cl- and CN- anions or neutral HCN and NCPh nitriles, their coordination to the puckered Si6Cl12 ring results in its flattening. The NBO and CDA studies of the complexes showed that coordination occurs due to hybridization of low-lying antibonding σ*(Si-Cl) and σ*(Si-Si) unoccupied molecular orbitals (UMOs) of Si6Cl12 and occupied molecular orbitals (OMOs) of donor molecules (predominantly lone-pair-related), resulting in donor-to-ring charge transfer accompanied by complex stabilization and ring flattening. It is known that the Si6 ring distortion results from vibronic coupling of OMO and UMO pairs (pseudo-Jahn-Teller effect, PJT). Consequently, the Si6 ring flattening most probably occurs due to suppression of the PJT effect in all of the studied compounds. In this paper, the stabilization energy E(2) associated with donor-acceptor charge transfer (delocalization) was estimated using NBO analysis for [Si6Cl12·2Cl]2-, [Si6Cl12·2(NC)]2-, Si6Cl12·2(NCH), and Si6Cl12·2(NCPh). It was found that the polarizability of the donor might significantly affect the stabilization energy value (Cl- > CN- > HCN). For the neutral complexes, the E(2) value is correlated with the charge on the nitrogen atoms. All of these factors, that is, specific donor E(2) value, charge transfer, complex MO energy diagrams, and so on, should be taken into account when choosing the ligands suitable for forming Si-based 1D compounds and other nanoscale materials.
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Affiliation(s)
- Konstantin Pokhodnya
- Department of Chemistry and Biochemistry , North Dakota State University , Fargo , North Dakota 58108 , United States
| | - Kenneth Anderson
- Department of Chemistry and Biochemistry , North Dakota State University , Fargo , North Dakota 58108 , United States
| | - Svetlana Kilina
- Department of Chemistry and Biochemistry , North Dakota State University , Fargo , North Dakota 58108 , United States
| | - Naveen Dandu
- Department of Chemistry and Biochemistry , North Dakota State University , Fargo , North Dakota 58108 , United States
| | - Philip Boudjouk
- Department of Chemistry and Biochemistry , North Dakota State University , Fargo , North Dakota 58108 , United States
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12
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Senthilnathan D, Solomon RV, Kiruthika S, Venuvanalingam P, Sundararajan M. Are cucurbiturils better drug carriers for bent metallocenes? Insights from theory. J Biol Inorg Chem 2018; 23:413-423. [PMID: 29502216 DOI: 10.1007/s00775-018-1547-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 02/23/2018] [Indexed: 02/06/2023]
Abstract
Bent metallocenes (BM) have anti-tumor properties but they face a serious drug efficacy problem due to poor aqueous solubility and rapid hydrolysis under physiological conditions. These two problems can be fixed by encapsulating them in host molecules such as cyclodextrin (CD), cucurbituril (CB) etc. Experimentally, CD-BM, CB-BM host-guest complexes have been investigated to check the efficiency of the drug delivery and efficiency of the encapsulated drug. CB has been reported to be a better host than CD but the reasons for this has not been figured out. This can be done by finding out the mechanism of binding and the nature of the binding forces in both the inclusion complexes. This is exactly done here by performing a DFT study at BP86/TZP level on CB-BM host-guest systems. For comparison CD-BM with β-cyclodextrin as host have been studied. Four BMs (Cp2MCl2, M=Ti, V, Nb, Mo) and their corresponding cations (Cp2MCl+, Cp2M2+) are chosen as guests and they are encapsulated into cucurbit-[6]-uril (CB[6]) and cucurbit-[7]-uril(CB[7]) host systems. Computations reveal that CB[7] accommodates well the BMs over CB[6] due to their larger cavity size and also CB[7] is found to be a better host than β-cyclodextrin. BMs enter vertically rather than horizontally into the CB cavity. The reversible binding of BMs within CB[7] is controlled by various non-bonding interactions and mainly by hydrogen bonding between the portal oxygen atoms and Cp protons as revealed by QTAIM analysis. On the other hand, the interaction between the wall nitrogen atoms in CB[7] and chlorine atoms attached to the metal in BM strengthens the M-Cl bonds that prevents rapid hydrolysis of M-Cl and M-Cp bonds saving the drug. Comparatively, BMs experience less electrostatic attraction and more Pauli repulsion within β-cyclodextrin cavity and this affects the drug binding with CD. This makes β-cyclodextrin a less suitable drug carrier for BMs than CBs. Among the four BMs, niobocene binds strongly and titanocene binds weakly with CBs. EDA clearly shows that all the interactions between the guest and host are non-covalent in nature and electrostatic interactions outperform high-repulsion resulting in stable complexes. Cations form stronger complexes than neutral BMs. FMO analysis reveals that neutral BMs are less reactive compared to their cations and complexes are more reactive in CB[6] environment due to excess strain. QTAIM analysis helps to bring out the newer insights in these types of host-guest systems.
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Affiliation(s)
- Dhurairajan Senthilnathan
- Center for Computational Chemistry, CRD, PRIST University, Vallam, Thanjavur, Tamilnadu, 613403, India.
| | - Rajadurai Vijay Solomon
- Department of Chemistry, Madras Christian College (Autonomous), Tambaram East, Chennai, 600 059, India
| | - Shanmugam Kiruthika
- Theoretical and Computational Chemistry Laboratory, School of Chemistry, Bharathidasan University, Tiruchirappalli, 620 024, India
| | - Ponnambalam Venuvanalingam
- Theoretical and Computational Chemistry Laboratory, School of Chemistry, Bharathidasan University, Tiruchirappalli, 620 024, India
| | - Mahesh Sundararajan
- Theoretical Chemistry Section, Bhabha Atomic Research Centre, Mumbai, 400 085, India
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13
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Liu Y, Yuan Y, Tian X, Yuan J, Sun J. Recognition of Melamine by Chromium Tricarbonyl (Thio)barbituric Acid Derivatives: Theoretical Insight into Multiple Hydrogen-Bond Modes. ChemistrySelect 2018. [DOI: 10.1002/slct.201702895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yidan Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education and Shanghai Key Laboratory of Advanced Polymeric Materials; School of Materials Science and Engineering; East China University of Science and Technology; Meilong Road 130 Shanghai China 200237
| | - Yizhong Yuan
- Key Laboratory for Ultrafine Materials of Ministry of Education and Shanghai Key Laboratory of Advanced Polymeric Materials; School of Materials Science and Engineering; East China University of Science and Technology; Meilong Road 130 Shanghai China 200237
| | - Xiaohui Tian
- Key Laboratory for Ultrafine Materials of Ministry of Education and Shanghai Key Laboratory of Advanced Polymeric Materials; School of Materials Science and Engineering; East China University of Science and Technology; Meilong Road 130 Shanghai China 200237
| | - Jianyong Yuan
- Key Laboratory for Ultrafine Materials of Ministry of Education and Shanghai Key Laboratory of Advanced Polymeric Materials; School of Materials Science and Engineering; East China University of Science and Technology; Meilong Road 130 Shanghai China 200237
| | - Jinyu Sun
- Key Laboratory for Ultrafine Materials of Ministry of Education and Shanghai Key Laboratory of Advanced Polymeric Materials; School of Materials Science and Engineering; East China University of Science and Technology; Meilong Road 130 Shanghai China 200237
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Panneerselvam M, Kumar MD, Jaccob M, Solomon RV. Computational Unravelling of the Role of Alkyl Groups on the Host-Guest Complexation of Pillar[5]arenes with Neutral Dihalobutanes. ChemistrySelect 2018. [DOI: 10.1002/slct.201702541] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Murugesan Panneerselvam
- Department of Chemistry; Loyola College (Autonomous); Chennai - 600 034, Tamil Nadu India
- Computational Chemistry Laboratory; Loyola Institute of Frontier Energy (LIFE); Loyola College (Autonomous); Chennai - 600 034, Tamil Nadu India
| | - Madhu Deepan Kumar
- Department of Chemistry; Loyola College (Autonomous); Chennai - 600 034, Tamil Nadu India
- Computational Chemistry Laboratory; Loyola Institute of Frontier Energy (LIFE); Loyola College (Autonomous); Chennai - 600 034, Tamil Nadu India
| | - Madhavan Jaccob
- Department of Chemistry; Loyola College (Autonomous); Chennai - 600 034, Tamil Nadu India
- Computational Chemistry Laboratory; Loyola Institute of Frontier Energy (LIFE); Loyola College (Autonomous); Chennai - 600 034, Tamil Nadu India
| | - Rajadurai Vijay Solomon
- Department of Chemistry; Madras Christian College (Autonomous), Tambaram East; Chennai - 600 059, Tamil Nadu India
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15
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Teichmann J, Wagner M. Silicon chemistry in zero to three dimensions: from dichlorosilylene to silafullerane. Chem Commun (Camb) 2018; 54:1397-1412. [DOI: 10.1039/c7cc09063c] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
As one of the simplest examples of functionalized Si(ii) species, the SiCl2/[SiCl3]− system is not only fundamentally interesting, but also an important starting point for the assembly of oligosilane chains, rings, and clusters.
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Affiliation(s)
- J. Teichmann
- Institut für Anorganische Chemie
- Goethe-Universität Frankfurt am Main
- 60438 Frankfurt am Main
- Germany
| | - M. Wagner
- Institut für Anorganische Chemie
- Goethe-Universität Frankfurt am Main
- 60438 Frankfurt am Main
- Germany
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16
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Pokhodnya K, Anderson K, Kilina S, Boudjouk P. Toward the Mechanism of Perchlorinated Cyclopentasilane (Si 5Cl 10) Ring Flattening in the [Si 5Cl 10·2Cl] 2- Dianion. J Phys Chem A 2017; 121:3494-3500. [PMID: 28406632 DOI: 10.1021/acs.jpca.6b12938] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report the detailed computational study of flattening of the puckered Si5 ring by suppression of the pseudo-Jahn-Teller (PJT) effect through coordination of two Cl- anions to the molecule forming an inverse sandwich dianion [Si5Cl10·2Cl]2- complex. The PJT effect that causes nonplanarity of the Si5Cl10 structure (Cs) results from vibronic coupling of pairs of occupied molecular orbitals (OMOs) and unoccupied molecular orbitals (UMOs). It was shown that filling the intervenient molecular orbitals of puckered Si5Cl10 with valent electron pairs of Cl- donors suppresses the PJT effect, with the Si5 ring becoming planar (D5h) upon complex formation. In this paper, the stabilization energy E(2) associated with donor-acceptor charge transfer (delocalization) was estimated using NBO analysis for all studied inverse sandwich compounds [Si5Cl10·2X]2- (where X = F, Cl, Br). It was found that the polarizability of the donor ion might significantly affect the stabilization energy value and should be taken into account when choosing the ligands suitable for forming Si-based one-dimensional compounds and other nanoscale materials.
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Affiliation(s)
- Konstantin Pokhodnya
- Department of Chemistry and Biochemistry, North Dakota State University , Fargo, North Dakota 58108, United States
| | - Kenneth Anderson
- Department of Chemistry and Biochemistry, North Dakota State University , Fargo, North Dakota 58108, United States
| | - Svetlana Kilina
- Department of Chemistry and Biochemistry, North Dakota State University , Fargo, North Dakota 58108, United States
| | - Philip Boudjouk
- Department of Chemistry and Biochemistry, North Dakota State University , Fargo, North Dakota 58108, United States
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17
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Recognition of halides and Y-shaped oxoanions by carbonylchromium-based urea-like molecules: A theoretical analysis of hydrogen bonding modes. J Mol Graph Model 2016; 64:1-10. [PMID: 26751799 DOI: 10.1016/j.jmgm.2015.12.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 12/07/2015] [Accepted: 12/18/2015] [Indexed: 11/21/2022]
Abstract
One of the major challenges in anion recognition is to design hosts that can be used to distinguish between anions of different shapes. Urea-based molecules are widely used in anion recognition because the pair of -NH groups acts as an electron acceptor. Although these hosts can bind to both spherical anions (halides) and Y-shaped anions (oxoanions), experimental evidence to date does not provide a clear picture of what differences in the nature of the hydrogen bonding interactions could be used to distinguish between anions of different shapes. Here, we use several computational topology analyses to study the non-covalent interactions between Cr(CO)3-based organometallic urea-like hosts and halides and Y-shaped oxoanions. Our results suggest that the F(-) and AcO(-) anions are recognized experimentally due to a combination of strong interaction and large infrared (IR) shifts upon complexation, verifying the remarkable IR-reporting ability of the Cr(CO)3 moiety and its potential applications in anion recognition. The lone pairs of the oxygen atom in Y-shaped oxoanions directly interact with the -NH groups of the hosts, while all the shell electrons of the halides participate as a group in the interaction; however, the relative contributions of electrostatic and charge-transfer interactions are quite similar for the two types of anions. This insight into the nature of the anion-host interactions can be used to provide guidance for the design of hosts that differentiate between anions.
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18
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Wei Q, Li Q, Cheng J, Li W, Li HB. Comparison of tetrel bonds and halogen bonds in complexes of DMSO with ZF3X (Z = C and Si; X = halogen). RSC Adv 2016. [DOI: 10.1039/c6ra18316f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A theoretical study of the complexes formed by dimethylsulfoxide (DMSO) with ZF3X (Z = C and Si; X = halogen) has been performed at the MP2/aug-cc-pVTZ level.
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Affiliation(s)
- Quanchao Wei
- The Laboratory of Theoretical and Computational Chemistry
- School of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- People's Republic of China
| | - Qingzhong Li
- The Laboratory of Theoretical and Computational Chemistry
- School of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- People's Republic of China
| | - Jianbo Cheng
- The Laboratory of Theoretical and Computational Chemistry
- School of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- People's Republic of China
| | - Wenzuo Li
- The Laboratory of Theoretical and Computational Chemistry
- School of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- People's Republic of China
| | - Hai-Bei Li
- School of Ocean
- Shandong University
- Weihai 264209
- People's Republic of China
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19
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Tillmann J, Moxter M, Bolte M, Lerner HW, Wagner M. Lewis acidity of Si6Cl12 and its role as convenient SiCl2 source. Inorg Chem 2015; 54:9611-8. [PMID: 26378930 DOI: 10.1021/acs.inorgchem.5b01703] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The free cyclohexasilane Si6Cl12 (1) was obtained in 66% yield from the corresponding Cl(-) diadduct [nBu4N]2[1·2Cl] and AlCl3 in C6H6. The substituted cyclohexasilane 1,1-(Cl3Si)2Si6Cl10 (2), however, cannot be liberated from [nBu4N]2[2·2Cl] under comparable reaction conditions. Instead, a mixture of several products was obtained, from which the oligosilane Si19Cl36 (3) crystallized in low yields. X-ray crystallography revealed 3 to consist of two Si5 rings, bridged by one silicon atom. Compound 1 possesses Lewis acidic sites above and below the ring centroid. Competition experiments reveal that their corresponding acid strengths are comparable to that of BCl3. The reaction of 1 with 6 equiv of 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene (Idipp) leads to a complete breakdown of the cyclic scaffold and furnishes the dichlorosilylene adduct Idipp-SiCl2.
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Affiliation(s)
- Jan Tillmann
- Institut für Anorganische Chemie, Goethe-Universität Frankfurt am Main , Max-von-Laue-Straße 7, 60438 Frankfurt am Main, Germany
| | - Maximilian Moxter
- Institut für Anorganische Chemie, Goethe-Universität Frankfurt am Main , Max-von-Laue-Straße 7, 60438 Frankfurt am Main, Germany
| | - Michael Bolte
- Institut für Anorganische Chemie, Goethe-Universität Frankfurt am Main , Max-von-Laue-Straße 7, 60438 Frankfurt am Main, Germany
| | - Hans-Wolfram Lerner
- Institut für Anorganische Chemie, Goethe-Universität Frankfurt am Main , Max-von-Laue-Straße 7, 60438 Frankfurt am Main, Germany
| | - Matthias Wagner
- Institut für Anorganische Chemie, Goethe-Universität Frankfurt am Main , Max-von-Laue-Straße 7, 60438 Frankfurt am Main, Germany
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20
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González-Santana S, Morera-Boado C, Montero-Cabrera LA, Trueba M, Trasatti SP. Pyrrolyl–Silicon Compounds as Precursors for Donor–Acceptor Systems Stabilized by Noncovalent Interactions. J Phys Chem A 2015; 119:7038-51. [DOI: 10.1021/acs.jpca.5b04167] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Susana González-Santana
- Department
of Physical Chemistry, Faculty of Chemistry, Universidad de la Habana, Zapata y G, 10400 Ciudad de La Habana, Cuba
| | - Cercis Morera-Boado
- Department
of Physical Chemistry, Faculty of Chemistry, Universidad de la Habana, Zapata y G, 10400 Ciudad de La Habana, Cuba
| | - Luis A. Montero-Cabrera
- Department
of Physical Chemistry, Faculty of Chemistry, Universidad de la Habana, Zapata y G, 10400 Ciudad de La Habana, Cuba
| | - Monica Trueba
- Department
of Chemistry, Università degli Studi di Milano, Via Golgi
19, 20133 Milan, Italy
| | - Stefano P. Trasatti
- Department
of Chemistry, Università degli Studi di Milano, Via Golgi
19, 20133 Milan, Italy
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21
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Kämpfe A, Brendler E, Kroke E, Wagler J. 2-Acylpyrroles as mono-anionic O,N-chelating ligands in silicon coordination chemistry. Chemistry 2014; 20:9409-18. [PMID: 25043769 DOI: 10.1002/chem.201402803] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Indexed: 11/07/2022]
Abstract
Kryptopyrrole (2,4-dimethyl-3-ethylpyrrole) was acylated with, for example, benzoyl chloride to afford 2-benzoyl-3,5-dimethyl-4-ethylpyrrole (L(1)H). With SiCl4 this ligand reacts under liberation of HCl and formation of the complex L(1)2SiCl2. In related reactions with HSiCl3 or H2SiCl2, the same chlorosilicon complex is formed under liberation of HCl and H2 or liberation of H2, respectively. The chlorine atoms of L(1)2SiCl2 can be replaced by fluoride and triflate using ZnF2 and Me3Si-OTf, respectively. The use of a supporting base (triethylamine) is required for the complexation of phenyltrichlorosilane and diphenyldichlorosilane. The complexes L(1)2SiCl2, L(1)2SiF2, L(1)2Si(OTf)2, L(1)2SiPhCl, and L(1)2SiPh2 exhibit various configurations of the octahedral silicon coordination spheres (i.e. cis or trans configuration of the monodentate substituents, different orientations of the bidentate chelating ligands relative to each other). Furthermore, cationic silicon complexes L(1)3Si(+) and L(1) SiPh(+) were synthesized by chloride abstraction with GaCl3. In contrast, reaction of L(1)2SiCl2 with a third equivalent of L(1)H in the presence of excess triethylamine produced a charge-neutral hexacoordinate Si complex with a new tetradentate chelating ligand which formed by Si-templated C-C coupling of two ligands L(1).
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Affiliation(s)
- Alexander Kämpfe
- Institut für Anorganische Chemie, Technische Universität Bergakademie Freiberg, 09596 Freiberg (Germany), Fax: (+49) 3731394058
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22
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Deepa P, Vijay Solomon R, Angeline Vedha S, Kolandaivel P, Venuvanalingam P. The nature of hydrogen bonding inR22(8) crystal motifs – a computational exploration. Mol Phys 2014. [DOI: 10.1080/00268976.2014.937780] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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23
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Tillmann J, Meyer L, Schweizer JI, Bolte M, Lerner HW, Wagner M, Holthausen MC. Chloride-Induced Aufbau of Perchlorinated Cyclohexasilanes from Si2Cl6: A Mechanistic Scenario. Chemistry 2014; 20:9234-9. [DOI: 10.1002/chem.201402655] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Indexed: 11/08/2022]
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24
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Liao JH, Latouche C, Li B, Kahlal S, Saillard JY, Liu CW. A Twelve-Coordinated Iodide in a Cuboctahedral Silver(I) Skeleton. Inorg Chem 2014; 53:2260-7. [DOI: 10.1021/ic402960e] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Jian-Hong Liao
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan 97401, R. O. C
| | - Camille Latouche
- UMR−CNRS, 6226 “Sciences Chimiques de Rennes”, Université de Rennes 1, 35042 Rennes cedex, France
| | - Bing Li
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A & F University, Lin’an, Zhejiang, 311300, P. R. China
| | - Samia Kahlal
- UMR−CNRS, 6226 “Sciences Chimiques de Rennes”, Université de Rennes 1, 35042 Rennes cedex, France
| | - Jean-Yves Saillard
- UMR−CNRS, 6226 “Sciences Chimiques de Rennes”, Université de Rennes 1, 35042 Rennes cedex, France
| | - C. W. Liu
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan 97401, R. O. C
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A & F University, Lin’an, Zhejiang, 311300, P. R. China
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25
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Ruiz A, Pérez H, Morera-Boado C, Almagro L, da Silva CCP, Ellena J, García de la Vega JM, Martínez-Álvarez R, Suárez M, Martín N. Unusual hydrogen bond patterns contributing to supramolecular assembly: conformational study, Hirshfeld surface analysis and density functional calculations of a new steroid derivative. CrystEngComm 2014. [DOI: 10.1039/c4ce00709c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Structural and conformational study of a new steroid derivative using X-ray and density functional calculations.
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Affiliation(s)
- Alberto Ruiz
- Laboratorio de Síntesis Orgánica
- Facultad de Química
- Universidad de La Habana
- 10400-La Habana, Cuba
| | - Hiram Pérez
- Departamento de Química Inorgánica
- Facultad de Química
- Universidad de La Habana
- 10400-La Habana, Cuba
| | - Cercis Morera-Boado
- Laboratorio de Química
- Computacional y Teórica
- Facultad de Química
- Universidad de La Habana
- 10400-La Habana, Cuba
| | - Luis Almagro
- Laboratorio de Síntesis Orgánica
- Facultad de Química
- Universidad de La Habana
- 10400-La Habana, Cuba
| | - Cecilia C. P. da Silva
- Grupo de Cristalografía
- Instituto de Física de São Carlos
- Universidade de São Paulo
- São Carlos, Brazil
| | - Javier Ellena
- Grupo de Cristalografía
- Instituto de Física de São Carlos
- Universidade de São Paulo
- São Carlos, Brazil
| | | | - Roberto Martínez-Álvarez
- Departamento de Química Orgánica I
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- 28040 Madrid, Spain
| | - Margarita Suárez
- Laboratorio de Síntesis Orgánica
- Facultad de Química
- Universidad de La Habana
- 10400-La Habana, Cuba
| | - Nazario Martín
- Departamento de Química Orgánica I
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- 28040 Madrid, Spain
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26
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Vijay Solomon R, Angeline Vedha S, Venuvanalingam P. A new turn in codon–anticodon selection through halogen bonds. Phys Chem Chem Phys 2014; 16:7430-40. [DOI: 10.1039/c3cp54442g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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