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Mahapatra N, Chandra S, Ramanathan N, Sundararajan K. Structural Elucidation of N 2O Clusters at Low Temperatures: Exemplary Framework Stabilized by π-Hole-Driven N···O and N···N Pnicogen Bonding Interactions. J Phys Chem A 2024; 128:4623-4637. [PMID: 38867592 DOI: 10.1021/acs.jpca.4c01103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
N2O is a classic prototype, in which central nitrogen is sufficiently electropositive with a positive potential of 20 kcal mol-1 in magnitude to qualify it as a possible pnicogen. This was applied to a test with N2O clusters using ab initio calculations in association with various molecular topographic tools. The structure of the energetically dominant and N2O dimer was in favor of a perpendicular geometry, where the central nitrogen atom of the N2O submolecule assumed a near 90° angle with the adjacent N═O and/or N═N moiety, which provides the affirmation of central nitrogen as a possible π-hole-driven pnicogen. The terminal nitrogen and oxygen atoms of N2O continue to act as conventional electron donors (Lewis bases) with a negative potential. Overall, predominant π-hole-driven N···O and N···N pnicogen bonding interactions were observed to stabilize N2O clusters. Furthermore, N2O clusters (dimers and trimers) were synthesized at low temperatures in an Ar matrix using molecular beam (effusive and supersonic expansion) experiments. The geometries of these clusters were characterized by probing infrared spectroscopy with corroboration from ab initio computational methods. In addition to our previously investigated nitromethane and nitrobenzene systems, N2O also makes it to a pnicogen bonder's club with the central nitrogen as a π-hole-driven pnicogen.
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Affiliation(s)
- Nandalal Mahapatra
- Materials Chemistry & Metal Fuel Cycle Group, Indira Gandhi Center for Atomic Research, Kalpakkam 603102, Tamil Nadu, India
- Indira Gandhi Center for Atomic Research, A CI of Homi Bhabha National Institute, Kalpakkam603102, Tami Nadu, India
| | - Swaroop Chandra
- Materials Chemistry & Metal Fuel Cycle Group, Indira Gandhi Center for Atomic Research, Kalpakkam 603102, Tamil Nadu, India
- Indira Gandhi Center for Atomic Research, A CI of Homi Bhabha National Institute, Kalpakkam603102, Tami Nadu, India
| | - Nagarajan Ramanathan
- Materials Chemistry & Metal Fuel Cycle Group, Indira Gandhi Center for Atomic Research, Kalpakkam 603102, Tamil Nadu, India
- Indira Gandhi Center for Atomic Research, A CI of Homi Bhabha National Institute, Kalpakkam603102, Tami Nadu, India
| | - Kalyanasundaram Sundararajan
- Materials Chemistry & Metal Fuel Cycle Group, Indira Gandhi Center for Atomic Research, Kalpakkam 603102, Tamil Nadu, India
- Indira Gandhi Center for Atomic Research, A CI of Homi Bhabha National Institute, Kalpakkam603102, Tami Nadu, India
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2
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Das A, Arunan E. Unified classification of non-covalent bonds formed by main group elements: a bridge to chemical bonding. Phys Chem Chem Phys 2023; 25:22583-22594. [PMID: 37435670 DOI: 10.1039/d3cp00370a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
Using correlation plots of binding energy and electron density at the bond critical point, we investigated the nature of intermolecular non-covalent bonds (D-X⋯A, where D = O/S/F/Cl/Br/H, mostly, X = main group elements (except noble gases), A = H2O, NH3, H2S, PH3, HCHO, C2H4, HCN, CO, CH3OH, and CH3OCH3). The binding energies were calculated at the MP2 level of theory, followed by Atoms in Molecules (AIM) analysis of the ab initio wave functions to obtain the electron density at the bond critical point (BCP). For each non-covalent bond, the slopes of the binding energy versus electron density plot have been determined. Based on their slopes, non-covalent bonds are classified as non-covalent bond closed-shell (NCB-C) or non-covalent bond shared-shell (NCB-S). Intriguingly, extrapolating the slopes of the NCB-C and NCB-S cases leads to intramolecular "ionic" and "covalent" bonding regimes, establishing a link between such intermolecular non-covalent and intramolecular chemical bonds. With this new classification, hydrogen bonds and other non-covalent bonds formed by a main-group atom in a covalent molecule are classified as NCB-S. Atoms found in ionic molecules generally form NCB-C type bonds, with the exception of carbon which also forms NCB-C type bonds. Molecules with a tetravalent carbon do behave like ions in ionic molecules such as NaCl and interact with other molecules through NCB-C type bonds. As with the chemical bonds, there are some non-covalent bonds that are intermediate cases.
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Affiliation(s)
- Arijit Das
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India.
| | - Elangannan Arunan
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India.
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3
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Yang Q, Wu Q, Zhang X, Yang X, Li Q. Hydrogen and halogen bonds formed by MCO 3 (M = Zn, Cd) and their enhancement by a spodium bond. Mol Phys 2022. [DOI: 10.1080/00268976.2022.2102548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Qingqing Yang
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai, People’s Republic of China
| | - Qiaozhuo Wu
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai, People’s Republic of China
| | - Xiaolong Zhang
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai, People’s Republic of China
| | - Xin Yang
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai, People’s Republic of China
| | - Qingzhong Li
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai, People’s Republic of China
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4
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Liu N, Li Q, Scheiner S, Xie X. Resonance-assisted intramolecular triel bonds. Phys Chem Chem Phys 2022; 24:15015-15024. [PMID: 35695162 DOI: 10.1039/d2cp01244h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The possibility that the intramolecular Tr⋯S triel bond is strengthened by resonance is examined by quantum chemical calculations within the planar five-membered ring of TrH2-CRCR-CRS (Tr = Al, Ga, In; R = NO2, CH3). This internal bond is found to be rather short (2.4-2.7 Å) with a large bond energy between 12 and 21 kcal mol-1. The pattern of bond length alternation and atomic charges within the ring is consistent with resonance involving the conjugated double bonds. This resonance enhances the triel bond strength by some 25%. The electron-withdrawing NO2 group weakens the bond, but it is strengthened by the electron-donating CH3 substituent. NICS analysis suggests the presence of a certain degree of aromaticity within the ring.
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Affiliation(s)
- Na Liu
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China.
| | - Qingzhong Li
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China.
| | - Steve Scheiner
- Department of Chemistry and Biochemistry, Utah State University, Logan, UT 84322-0300, USA.
| | - Xiaoying Xie
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China.
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5
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Bauzá A, Frontera A. Noncovalent Interactions Involving Group 6 in Biological Systems: The Case of Molybdopterin and Tungstopterin Cofactors. Chemistry 2022; 28:e202201660. [PMID: 35670547 PMCID: PMC9545818 DOI: 10.1002/chem.202201660] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Indexed: 12/14/2022]
Abstract
In this study we propose to coin the term Wolfium bond (WfB) to refer to a net attractive force (noncovalent interaction) between any element of group 6 and electron donor atoms (neutral molecules or anions) and to differentiate it from a coordination bond (metal‐ligand interaction). We provide evidence of the existence of this interaction by inspecting the X‐ray crystal structure of proteins containing Molybdopterin and Tungstopterin cofactors from the Protein Data Bank (PDB). The plausible biological role of the interaction as well as its physical nature (antibonding Wf‐Ligand orbital involved) are also analyzed by means of ab initio calculations (RI‐MP2/def2‐TZVP level of theory), Atoms in Molecules (AIM), Natural Bond Orbital (NBO) and Noncovalent Interactions plot (NCIplot) analyses.
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Affiliation(s)
- Antonio Bauzá
- Departament de Química, Universitat de les Illes Balears, Ctra. de Valldemossa km 7.5, 07122, Palma de Mallorca (Baleares), Spain
| | - Antonio Frontera
- Departament de Química, Universitat de les Illes Balears, Ctra. de Valldemossa km 7.5, 07122, Palma de Mallorca (Baleares), Spain
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Piña MDLN, Burguera S, Buils J, Crespí MÀ, Morales JE, Pons J, Bauzá A, Frontera A. Substituent effects in π-hole regium bonding interactions between Au(p-X-Py)2 complexes and Lewis bases: an ab initio study. Chemphyschem 2022; 23:e202200010. [PMID: 35191571 DOI: 10.1002/cphc.202200010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 02/09/2022] [Indexed: 11/10/2022]
Abstract
For the first time, long range substituent effects in regium bonding interactions involving Au(I) linear complexes are investigated. The Au(I) atom is coordinated to two para -substituted pyridine ligands. The interaction energy (RI-MP2/def2-TZVP level of theory) of the π-hole regium bonding assemblies is affected by the pyridine substitution. The Hammett's plot representations for several sets of Lewis bases have been carried out and, in all cases, good regression plots have been obtained (interaction energies vs. Hammett's σ parameter). The Bader's theory of "atoms-in-molecules" has been used to evidence that the electron density computed at the bond critical point that connects the Au-atom to the electron donor can be used as a measure of bond order in regium bonding. Several X-ray structures retrieved from the Cambridge Structural Database (CSD) provide some experimental support to the existence of regium π-hole bonding in [Au(Py) 2 ] + derivatives.
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Affiliation(s)
| | | | - Jordi Buils
- Universitat de les Illes Balears, Chemistry, SPAIN
| | | | | | - Jordi Pons
- Universitat de les Illes Balears, Chemistry, SPAIN
| | | | - Antonio Frontera
- Universitat Illes Balears, Chemistry, Crta de Valldemossa km 7.5, 07122, Palma de Mallorca, SPAIN
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7
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Daolio A, Pizzi A, Terraneo G, Frontera A, Resnati G. Anion⋅⋅⋅Anion Interactions Involving σ-Holes of Perrhenate, Pertechnetate and Permanganate Anions. Chemphyschem 2021; 22:2281-2285. [PMID: 34541753 PMCID: PMC9291842 DOI: 10.1002/cphc.202100681] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Indexed: 01/14/2023]
Abstract
In this communication experimental and theoretical results are reported affording strong evidence that interactions between electron rich atoms and the metal of tetroxide anions of group 7 elements are a new case of attractive and σ‐hole interactions. Single crystal X‐ray analyses, molecular electrostatic potentials, quantum theory of atoms‐in‐molecules, and noncovalent interaction plot analyses show that in crystalline permanganate and perrhenate salts the metal in Mn/ReO4− anion can act as electron acceptors, the oxygen of another Mn/ReO4− anion can act as the donor and supramolecular anionic dimers or polymers are formed. The name matere bond (MaB) is proposed to categorize these noncovalent interactions and to differentiate them from the classical metal‐ligand coordination bond.
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Affiliation(s)
- Andrea Daolio
- Department of Chemistry, Materials and, Chemical Engineering "Giulio Natta", Politecnico di Milano, via Mancinelli 7, 20131, Milano, Italy
| | - Andrea Pizzi
- Department of Chemistry, Materials and, Chemical Engineering "Giulio Natta", Politecnico di Milano, via Mancinelli 7, 20131, Milano, Italy
| | - Giancarlo Terraneo
- Department of Chemistry, Materials and, Chemical Engineering "Giulio Natta", Politecnico di Milano, via Mancinelli 7, 20131, Milano, Italy
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears, Crta. de Valldemossa, 07122, Palma de Mallorca, Baleares, Spain
| | - Giuseppe Resnati
- Department of Chemistry, Materials and, Chemical Engineering "Giulio Natta", Politecnico di Milano, via Mancinelli 7, 20131, Milano, Italy
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8
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Roeleveld JJ, Ehlers AW, Mooibroek TJ. Computational Evaluation of Me 2 TCCP as Lewis Acid. Chemphyschem 2021; 22:2099-2106. [PMID: 34318574 PMCID: PMC8596889 DOI: 10.1002/cphc.202100426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/18/2021] [Indexed: 12/14/2022]
Abstract
Supramolecular adducts between dimethyl-2,2,3,3-tetracyanocyclopropane (Me2 TCCP) with 21 small (polar) molecules and 10 anions were computed with DFT (B3LYP-D3/def2-TZVP). Their optimized geometries were used to obtain interaction energies, and perform energy decomposition and 'atoms-in-molecules' analyses. A set of 38 other adducts were also evaluated for comparison purposes. Selected examples were further scrutinized by inspection of the molecular electrostatic potential maps, Noncovalent Interaction index plots, the Laplacian, the orbital interactions, and by estimating the Gibbs free energy of complexation in hexane solution. These calculations divulge the thermodynamic feasibility of Me2 TCCP adducts and show that complexation is typically driven by dispersion with less polarized partners, but by orbital interactions when more polarized or anionic guests are deployed. Most Me2 TCCP adducts are more stable than simple hydrogen bonding with water, but less stable than traditional Lewis adducts involving Me3 B, or a strong halogen bond such as with Br2 . Several bonding analyses showed that the locus of interaction is found near the electron poor sp3 -hydridized (NC)2 C-C(CN)2 carbon atoms. An empty hybrid σ*/π* orbital on Me2 TCCP was identified that can be held responsible for the stability of the most stable adducts due to donor-acceptor interactions.
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Affiliation(s)
- Julius J. Roeleveld
- van ‘t Hoff Institute for Molecular SciencesUniversiteit van AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Andreas Wolfgang Ehlers
- van ‘t Hoff Institute for Molecular SciencesUniversiteit van AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Tiddo Jonathan Mooibroek
- van ‘t Hoff Institute for Molecular SciencesUniversiteit van AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
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9
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Azide⋅⋅⋅Oxygen Interaction: A Crystal Engineering Tool for Conformational Locking. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106614] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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10
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Tarannam N, Shukla R, Kozuch S. Yet another perspective on hole interactions. Phys Chem Chem Phys 2021; 23:19948-19963. [PMID: 34514473 DOI: 10.1039/d1cp03533a] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Hole interactions are known by different names depending on the key atom of the bond (halogen bond, chalcogen bond, hydrogen bond, etc.), and the geometry of the interaction (σ if in line, π if perpendicular to the Lewis acid plane). However, its origin starts with the creation of a Lewis acid by an underlying covalent bond, which forms an electrostatic depletion and a virtual antibonding orbital, which can create non-covalent interactions with Lewis bases. In this (maybe subjective) perspective, we will claim that hole interactions must be defined via the molecular orbital origin of the molecule. Under this premise we can better explore the richness of such bonding patterns. For that, we will study old, recent and new systems, trying to pinpoint some misinterpretations that are often associated with them. We will use as exemplars the triel bonds, a couple of metal complexes, a discussion on convergent σ-holes, and many cases of anti-electrostatic hole interactions.
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Affiliation(s)
- Naziha Tarannam
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 841051, Israel.
| | - Rahul Shukla
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 841051, Israel.
| | - Sebastian Kozuch
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 841051, Israel.
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11
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Daolio A, Pizzi A, Calabrese M, Terraneo G, Bordignon S, Frontera A, Resnati G. Molecular Electrostatic Potential and Noncovalent Interactions in Derivatives of Group 8 Elements. Angew Chem Int Ed Engl 2021; 60:20723-20727. [PMID: 34260810 PMCID: PMC8519081 DOI: 10.1002/anie.202107978] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/14/2021] [Indexed: 12/15/2022]
Abstract
This communication reports experimental and theoretical evidences of σ‐hole interactions in adducts between nitrogen or oxygen nucleophiles and tetroxides of osmium or other group 8 elements. Cocrystals between pyridine or pyridine N‐oxide derivatives and osmium tetroxide are characterized through various techniques and rationalized as σ‐hole interactions using DFT calculations and several other computational tools. We propose the term “osme bond” (OmB, Om=Fe, Ru, Os, (Hs)) for naming the noncovalent interactions wherein group 8 elements have the role of the electrophile. The word osme is the transcription of ὀσμή, the ancient Greek word for smell that was used to name the heaviest group 8 element in relation to the smoky odor of its tetroxide.
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Affiliation(s)
- Andrea Daolio
- Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, via Mancinelli 7, 20131, Milano, Italy
| | - Andrea Pizzi
- Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, via Mancinelli 7, 20131, Milano, Italy
| | - Miriam Calabrese
- Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, via Mancinelli 7, 20131, Milano, Italy
| | - Giancarlo Terraneo
- Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, via Mancinelli 7, 20131, Milano, Italy
| | | | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears, Crta. de Valldemossa, 07122, Palma, de Mallorca (Baleares, Spain
| | - Giuseppe Resnati
- Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, via Mancinelli 7, 20131, Milano, Italy
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12
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Liu N, Li Q. Group 12 Carbonates and their Binary Complexes with Nitrogen Bases and FH 2 Z Molecules (Z=P, As, Sb): Synergism in Forming Ternary Complexes. Chemphyschem 2021; 22:1698-1705. [PMID: 34106509 DOI: 10.1002/cphc.202100348] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/03/2021] [Indexed: 11/10/2022]
Abstract
MCO3 (M=Zn, Cd, Hg) forms a spodium bond with nitrogen-containing bases (HCN, NHCH2 , NH3 ) and a pnicogen bond with FH2 Z (Z=P, As, Sb). The spodium bond is very strong with the interaction energy ranging from -31 kcal/mol to -56 kcal/mol. Both NHCH2 and NH3 have an equal electrostatic potential on the N atom, but the corresponding interaction energy is differentiated by 1.5-4 kcal/mol due to the existence of spodium and hydrogen bonds in the complex with NHCH2 as the electron donor. The spodium bond is weakest in the HCN complex, which is not consistent with the change of the binding distance. The spodium bond becomes stronger in the CdCO3 <ZnCO3 <HgCO3 sequence although the positive electrostatic potential on the Hg atom is smallest. This is because the electrostatic interaction is dominant in the spodium-bonded complexes of CdCO3 and ZnCO3 but the polarization interaction in that of HgCO3 . The pnicogen bond is much weaker than the spodium bond and the former has a larger enhancement than the latter in the FH2 Z⋅⋅⋅OCO2 M⋅⋅⋅N-base ternary complexes.
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Affiliation(s)
- Na Liu
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, P. R. China
| | - Qingzhong Li
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, P. R. China
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13
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Daolio A, Pizzi A, Calabrese M, Terraneo G, Bordignon S, Frontera A, Resnati G. Molecular Electrostatic Potential and Noncovalent Interactions in Derivatives of Group 8 Elements. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107978] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Andrea Daolio
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta” Politecnico di Milano via Mancinelli 7 20131 Milano Italy
| | - Andrea Pizzi
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta” Politecnico di Milano via Mancinelli 7 20131 Milano Italy
| | - Miriam Calabrese
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta” Politecnico di Milano via Mancinelli 7 20131 Milano Italy
| | - Giancarlo Terraneo
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta” Politecnico di Milano via Mancinelli 7 20131 Milano Italy
| | | | - Antonio Frontera
- Department of Chemistry Universitat de les Illes Balears Crta. de Valldemossa 07122 Palma de Mallorca (Baleares Spain
| | - Giuseppe Resnati
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta” Politecnico di Milano via Mancinelli 7 20131 Milano Italy
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14
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Sureshan KM, Madhusudhanan MC, Balan H, Werz DB. Azide···Oxygen Interaction: A Crystal Engineering Tool for Conformational Locking. Angew Chem Int Ed Engl 2021; 60:22797-22803. [PMID: 34399025 DOI: 10.1002/anie.202106614] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 08/15/2021] [Indexed: 11/09/2022]
Abstract
We have designed, synthesized and crystallized 36 compounds, each containing an azide group and an oxygen atom separated by three bonds. Crystal structure analysis revealed that each of these molecules adopts a conformation in which the azide and oxygen groups orient syn to each other with a short O ··· N b contact. Geometry-optimized structures [using M06-2X/6-311G(d,p) level of theory ] also showed the syn conformation in all 36 of these cases, suggesting that this not merely a crystal packing effect. Quantum topological analysis using Bader's Atoms in Molecules (AIM) theory revealed bond paths and bond critical points (BCP) in these structures suggesting its nature and energetics to be similar to weak hydrogen bonding. The NCI-RDG plot clearly revealed the attractive interaction consisting of electrostatic or dispersive components in all the 36 systems. NBO analysis suggested a weak orbital-relaxation (charge-transfer) contribution of energy for a few (sp2) O-donor systems. Natural population analysis (NPA) and molecular electrostatic potential mapping (MESP) of these crystal structures further revealed the existence of favorable azide-oxygen interaction. A CSD search indicated the frequent and consistent occurrence of this interaction and its role dictating the syn conformation of azide and oxygen in molecules where these groups are separated by 2-4 bonds.
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Affiliation(s)
- Kana M Sureshan
- Indian Institute of Science Education and Research, School of Chemistry, Thiruvananthapuram, Maruthamala, 695551, Thiruvananthapuram, INDIA
| | - Mithun C Madhusudhanan
- IISER-TVM: Indian Institute of Science Education Research Thiruvananthapuram, School of Chemistry, Maruthamala, Vithura, 795551, Thiruvananthapuram, INDIA
| | - Haripriya Balan
- IISER-TVM: Indian Institute of Science Education Research Thiruvananthapuram, School of Chemistry, Maruthamala, Vithura, 695551, Thiruvananthapuram, INDIA
| | - Daniel B Werz
- TU Braunschweig: Technische Universitat Braunschweig, Institute fur Organic Chemie, Hagenring 30, Braunschweig, 38106, Braunschweig, GERMANY
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15
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Mahmudov KT, Huseynov FE, Aliyeva VA, Guedes da Silva MFC, Pombeiro AJL. Noncovalent Interactions at Lanthanide Complexes. Chemistry 2021; 27:14370-14389. [PMID: 34363268 DOI: 10.1002/chem.202102245] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Indexed: 11/10/2022]
Abstract
Lanthanide complexes have attracted a widespread attention due to their structural diversity, as well as multifunctional and tunable properties. The development of lanthanide based functional materials has often relied on the design of the secondary coordination sphere of the corresponding lanthanide complexes. For instance, usually simple lanthanide salts (solvento complexes) do not catalyze effectively organic reactions or provide low yield of the expected product, whereas the presence of a suitable organic ligand with a noncovalent bond donor or acceptor centre (secondary coordination sphere) modifies the symmetry around the metal centre in lanthanide complexes which then successfully can act as catalysts in both homogenous and heterogenous catalysis. In this minireview, we discuss several relevant examples, based on X-ray crystal structure analyses, in which the hydrogen, halogen, chalcogen, pnictogen, tetrel and rare-earth bonds, as well as cation-π, anion-π, lone pair-π, π-π and pancake interactions, are used as a synthon in the decoration of the secondary coordination sphere of lanthanide complexes.
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Affiliation(s)
- Kamran T Mahmudov
- University of Lisbon Higher Technical Institute: Universidade de Lisboa Instituto Superior Tecnico, CQE, R., 1009 - 001, Lisbon, PORTUGAL
| | - Fatali E Huseynov
- Baku State University, Department of Ecology and Soil Sciences, AZERBAIJAN
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16
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Bhattarai S, Sutradhar D, Huyskens TZ, Chandra AK. Nature and Strength of the π‐Hole Chalcogen Bonded Complexes between Substituted Pyridines and SO
3
Molecule. ChemistrySelect 2021. [DOI: 10.1002/slct.202101981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Sumitra Bhattarai
- Department of Chemistry North-Eastern Hill University Shillong 793022 India
| | | | | | - Asit K. Chandra
- Department of Chemistry North-Eastern Hill University Shillong 793022 India
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Daolio A, Pizzi A, Terraneo G, Ursini M, Frontera A, Resnati G. Anion⋅⋅⋅Anion Coinage Bonds: The Case of Tetrachloridoaurate. Angew Chem Int Ed Engl 2021; 60:14385-14389. [PMID: 33872450 PMCID: PMC8251892 DOI: 10.1002/anie.202104592] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Indexed: 01/13/2023]
Abstract
Interactions in crystalline tetrachloridoaurates of acetylcholine and dimethylpropiothetine are characterized by Au⋅⋅⋅Cl and Au⋅⋅⋅O short contacts. The former interactions assemble the AuCl4 - units into supramolecular anionic polymers, while the latter interactions append the acetylcholine and propiothetine units to the polymer. The distorted octahedral geometry of the bonding pattern around the gold center is rationalized on the basis of the anisotropic distribution of the electron density, which enables gold to behave as an electrophile (π-hole coinage-bond donor). Computational studies prove that gold atoms in negatively charged species can function as acceptors of electron density. The attractive nature of the Au⋅⋅⋅Cl/O interactions described here complement the known aurophilic bonds involved in gold-centered interactions.
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Affiliation(s)
- Andrea Daolio
- NFMLab, Dept- Chemistry, Materials, and Chemical Engineering “Giulio Natta”Politecnico di Milanovia L. Mancinelli 720131MilanoItaly
| | - Andrea Pizzi
- NFMLab, Dept- Chemistry, Materials, and Chemical Engineering “Giulio Natta”Politecnico di Milanovia L. Mancinelli 720131MilanoItaly
| | - Giancarlo Terraneo
- NFMLab, Dept- Chemistry, Materials, and Chemical Engineering “Giulio Natta”Politecnico di Milanovia L. Mancinelli 720131MilanoItaly
| | - Maurizio Ursini
- NFMLab, Dept- Chemistry, Materials, and Chemical Engineering “Giulio Natta”Politecnico di Milanovia L. Mancinelli 720131MilanoItaly
| | - Antonio Frontera
- Dept. ChemistryUniversitat de les Illes BalearsCrta. de Valldemossa km 7.507122Palma de Mallorca (Baleares)Spain
| | - Giuseppe Resnati
- NFMLab, Dept- Chemistry, Materials, and Chemical Engineering “Giulio Natta”Politecnico di Milanovia L. Mancinelli 720131MilanoItaly
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Daolio A, Pizzi A, Terraneo G, Ursini M, Frontera A, Resnati G. Anion⋅⋅⋅Anion Coinage Bonds: The Case of Tetrachloridoaurate. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104592] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Andrea Daolio
- NFMLab, Dept- Chemistry, Materials, and Chemical Engineering “Giulio Natta” Politecnico di Milano via L. Mancinelli 7 20131 Milano Italy
| | - Andrea Pizzi
- NFMLab, Dept- Chemistry, Materials, and Chemical Engineering “Giulio Natta” Politecnico di Milano via L. Mancinelli 7 20131 Milano Italy
| | - Giancarlo Terraneo
- NFMLab, Dept- Chemistry, Materials, and Chemical Engineering “Giulio Natta” Politecnico di Milano via L. Mancinelli 7 20131 Milano Italy
| | - Maurizio Ursini
- NFMLab, Dept- Chemistry, Materials, and Chemical Engineering “Giulio Natta” Politecnico di Milano via L. Mancinelli 7 20131 Milano Italy
| | - Antonio Frontera
- Dept. Chemistry Universitat de les Illes Balears Crta. de Valldemossa km 7.5 07122 Palma de Mallorca (Baleares) Spain
| | - Giuseppe Resnati
- NFMLab, Dept- Chemistry, Materials, and Chemical Engineering “Giulio Natta” Politecnico di Milano via L. Mancinelli 7 20131 Milano Italy
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Fekete C, Barrett J, Benkő Z, Heift D. Dibismuthates as Linking Units for Bis-Zwitterions and Coordination Polymers. Inorg Chem 2020; 59:13270-13280. [PMID: 32897714 PMCID: PMC7509842 DOI: 10.1021/acs.inorgchem.0c01619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
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Adducts of bismuth
trihalides BiX3 (X = Cl, Br, I) and the PS3 ligand (PS3 = P(C6H4-o-CH2SCH3)3) react with HCl to form inorganic/organic
hybrids with the general formula [HPS3BiX4]2. On the basis of their solid-state
structures determined by single-crystal X-ray diffraction, these compounds
exhibit discrete bis-zwitterionic assemblies consisting of two phosphonium
units [HPS3]+ linked
to a central dibismuthate core [Bi2X8]2– via S→Bi dative interactions. Remarkably, the phosphorus
center of the PS3 ligand undergoes
protonation with hydrochloric acid. This is in stark contrast to the
protonation of phosphines commonly observed with hydrogen halides
resulting in equilibrium. To understand the important factors in this
protonation reaction, 31P NMR experiments and DFT computations
have been performed. Furthermore, the dibismuthate linker was utilized
to obtain the coordination polymer {[AgPS3BiCl3(OTf)]2(CH3CN)2}∞, in which dicationic [Ag(PS3)]22+ macrocycles containing
five-coordinate silver centers connect the dianionic [Bi2Cl6(OTf)2]2– dibismuthate
fragments. The bonding situation in these dibismuthates has been investigated
by single-crystal X-ray diffraction and DFT calculations (NBO analysis,
AIM analysis, charge distribution). The potential
of dibismuthates [Bi2X8]2− as building blocks for the synthesis of bis-zwitterions and coordination
polymers has been shown. The structures of these compounds and the
bonding in the dibismuthate linkers have been studied by single-crystal
X-ray diffraction and DFT calculations.
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Affiliation(s)
- Csilla Fekete
- Budapest University of Technology and Economics, H-1111 Budapest, Hungary
| | - Jamie Barrett
- Department of Chemistry, Durham University, DH1 3LE Durham, United Kingdom
| | - Zoltán Benkő
- Budapest University of Technology and Economics, H-1111 Budapest, Hungary
| | - Dominikus Heift
- Department of Chemistry, Durham University, DH1 3LE Durham, United Kingdom
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