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Scheiner S, Amonov A. Types of noncovalent bonds within complexes of thiazole with CF 4 and SiF 4. Phys Chem Chem Phys 2024; 26:6127-6137. [PMID: 38299682 DOI: 10.1039/d4cp00057a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
The five-membered heteroaromatic thiazole molecule contains a number of electron-rich regions that could attract an electrophile, namely the N and S lone pairs that lie in the molecular plane, and π-system areas above the plane. The possibility of each of these sites engaging in a tetrel bond (TB) with CF4 and SiF4, as well as geometries that encompass a CH⋯F H-bond, was explored via DFT calculations. There are a number of minima that occur in the pairing of thiazole with CF4 that are very close in energy, but these complexes are weakly bound by less than 2 kcal mol-1 and the presence of a true TB is questionable. The inclusion of zero-point vibrational energies alters the energetic ordering, which is further modified when entropic effects are added. The preferred geometry would thus be sensitive to the temperature of an experiment. Replacement of CF4 by SiF4 leaves intact most of the configurations, and their tight energetic clustering, the ordering of which is again altered as the temperature rises. But there is one exception in that by far the most tightly bound complex involves a strong Si⋯N TB between SiF4 and the lone pair of the thiazole N, with an interaction energy of 30 kcal mol-1. Even accounting for its high deformation energy and entropic considerations, this structure remains as clearly the most stable at any temperature.
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Affiliation(s)
- Steve Scheiner
- Department of Chemistry and Biochemistry Utah State University Logan, Utah 84322-0300, USA.
| | - Akhtam Amonov
- Department of Optics and Spectroscopy, Institute of Engineering Physics Samarkand State University 140104, University blv. 15, Samarkand, Uzbekistan
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2
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Scheiner S. Maximal occupation by bases of π-hole bands surrounding linear molecules. J Comput Chem 2021; 43:319-330. [PMID: 34859910 DOI: 10.1002/jcc.26792] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/22/2021] [Accepted: 11/23/2021] [Indexed: 12/19/2022]
Abstract
Linear molecules such as CO2 contain a positive π-hole ring that surrounds C on the molecule's equator. Quantum calculations examine the question as to how many bases can simultaneously bind to this ring. Linear molecules examined are TO2 , where T = C, Si, Ge, Sn; bases are NCH and NH3 . CO2 engages in the weakest of the tetrel bonds, and can bind up to three NCH and two NH3 . Unlike σ-hole tetrel bonds, Si forms the strongest tetrel bonds, with interaction energies as high as 43 kcal/mol with NH3 . But like GeO2 , SiO2 can sustain only two bases in its equatorial ring. The π-hole ring of SnO2 can engage in up to four tetrel bonds with either NCH or NH3 , even though these bonds are weaker than those with GeO2 or SiO2 . As all of these complexes cast TO2 in the role of multiple electron acceptor, the resulting negative cooperativity makes each successive bond weaker than its predecessor as bases are added, as well as reducing the magnitude of the central molecule's π-hole.
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Affiliation(s)
- Steve Scheiner
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah, USA
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3
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Abstract
The list of σ-hole bonds is long and growing, encompassing both H-bonds and its closely related halogen, chalcogen, etc., sisters. These bonds rely on the asymmetric distribution of electron density, whose depletion along the extension of a covalent bond leaves a positive region of electrostatic potential from which these bonds derive their name. However, the density distributions of other molecules contain analogous positive regions that lie out of the molecular plane known as π-holes, which are likewise capable of engaging in noncovalent bonds. Quantum calculations are applied to study such π-hole bonds that involve linear molecules, whose positive region is a circular belt surrounding the molecule, rather than the more restricted area of a σ-hole. These bonds are examined in terms of their most fundamental elements arising from the spatial dispositions of their relevant molecular orbitals and the π-holes in both the total electron density and the electrostatic potential to which they lead. Systems examined comprise tetrel, chalcogen, aerogen, and triel bonds, as well as those involving group II elements, with atoms drawn from various rows of the Periodic Table. The π-hole bonds established by linear molecules tend to be weaker than those of comparable planar systems.
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Affiliation(s)
- Steve Scheiner
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322-0300, USA
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4
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Scheiner S. Dissection of the Origin of π-Holes and the Noncovalent Bonds in Which They Engage. J Phys Chem A 2021; 125:6514-6528. [PMID: 34310147 DOI: 10.1021/acs.jpca.1c05431] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Accompanying the rapidly growing list of σ-hole bonds has come the acknowledgment of parallel sorts of noncovalent bonds which owe their stability in large part to a deficiency of electron density in the area above the molecular plane, known as a π-hole. The origins of these π-holes are probed for a wide series of molecules, comprising halogen, chalcogen, pnicogen, tetrel, aerogen, and spodium bonds. Much like in the case of their σ-hole counterparts, formation of the internal covalent π-bond in the Lewis acid molecule pulls density toward the bond midpoint and away from its extremities. This depletion of density above the central atom is amplified by an electron-withdrawing substituent. At the same time, the amplitude of the π*-orbital is enhanced in the region of the density-depleted π-hole, facilitating a better overlap with the nucleophile's lone pair orbital and a stabilizing n → π* charge transfer. The presence of lone pairs on the central atom acts to attenuate the π-hole and shift its position somewhat, resulting in an overall weakening of the π-hole bond. There is a tendency for π-hole bonds to include a higher fraction of induction energy than σ-bonds with proportionately smaller electrostatic and dispersion components, but this distinction is less a product of the σ- or π-character and more a function of the overall bond strength.
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Affiliation(s)
- Steve Scheiner
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322-0300, United States
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5
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Exploring pentavalent phosphorous bonding in phosphoryl chloride-halocarbon heterodimers at low temperatures and ab initio Computations. Chem Phys 2021. [DOI: 10.1016/j.chemphys.2021.111112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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6
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Jabłoński M. Study of Beryllium, Magnesium, and Spodium Bonds to Carbenes and Carbodiphosphoranes. Molecules 2021; 26:2275. [PMID: 33920004 PMCID: PMC8071025 DOI: 10.3390/molecules26082275] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/09/2021] [Accepted: 04/11/2021] [Indexed: 11/17/2022] Open
Abstract
The aim of this article is to present results of theoretical study on the properties of C⋯M bonds, where C is either a carbene or carbodiphosphorane carbon atom and M is an acidic center of MX2 (M = Be, Mg, Zn). Due to the rarity of theoretical data regarding the C⋯Zn bond (i.e., the zinc bond), the main focus is placed on comparing the characteristics of this interaction with C⋯Be (beryllium bond) and C⋯Mg (magnesium bond). For this purpose, theoretical studies (ωB97X-D/6-311++G(2df,2p)) have been performed for a large group of dimers formed by MX2 (X = H, F, Cl, Br, Me) and either a carbene ((NH2)2C, imidazol-2-ylidene, imidazolidin-2-ylidene, tetrahydropyrymid-2-ylidene, cyclopropenylidene) or carbodiphosphorane ((PH3)2C, (NH3)2C) molecule. The investigated dimers are characterized by a very strong charge transfer effect from either the carbene or carbodiphosphorane molecule to the MX2 one. This may even be over six times as strong as in the water dimer. According to the QTAIM and NCI method, the zinc bond is not very different than the beryllium bond, with both featuring a significant covalent contribution. However, the zinc bond should be definitely stronger if delocalization index is considered.
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Affiliation(s)
- Mirosław Jabłoński
- Faculty of Chemistry, Nicolaus Copernicus University, 87-100 Toruń, Poland
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Zierkiewicz W, Michalczyk M, Scheiner S. Noncovalent Bonds through Sigma and Pi-Hole Located on the Same Molecule. Guiding Principles and Comparisons. Molecules 2021; 26:1740. [PMID: 33804617 PMCID: PMC8003638 DOI: 10.3390/molecules26061740] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 03/16/2021] [Accepted: 03/17/2021] [Indexed: 01/21/2023] Open
Abstract
Over the last years, scientific interest in noncovalent interactions based on the presence of electron-depleted regions called σ-holes or π-holes has markedly accelerated. Their high directionality and strength, comparable to hydrogen bonds, has been documented in many fields of modern chemistry. The current review gathers and digests recent results concerning these bonds, with a focus on those systems where both σ and π-holes are present on the same molecule. The underlying principles guiding the bonding in both sorts of interactions are discussed, and the trends that emerge from recent work offer a guide as to how one might design systems that allow multiple noncovalent bonds to occur simultaneously, or that prefer one bond type over another.
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Affiliation(s)
- Wiktor Zierkiewicz
- Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Mariusz Michalczyk
- Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Steve Scheiner
- Department of Chemistry and Biochemistry, Utah State University Logan, Logan, UT 84322-0300, USA;
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Chandra S, Suryaprasad B, Ramanathan N, Sundararajan K. Nitrogen as a pnicogen?: evidence for π-hole driven novel pnicogen bonding interactions in nitromethane-ammonia aggregates using matrix isolation infrared spectroscopy and ab initio computations. Phys Chem Chem Phys 2021; 23:6286-6297. [PMID: 33688865 DOI: 10.1039/d0cp06273a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The role of nitrogen, the first member of the pnicogen group, as an electron donor in hypervalent non-covalent interactions has been established long ago, while observation of its electron accepting capability is still elusive experimentally, and remains quite intriguing, conceptually. In the light of minimal computational exploration of this novel class of pnicogen bonding so far, the present work provides experimental proof with unprecedented clarity, for the existence of N(acceptor)N(donor) interaction using the model nitromethane (NM) molecule with ammonia (AM) as a Lewis base in NM-AM aggregates. The NM-AM dimer, in which the nitrogen atom of NM (as a unique pnicogen) accepts electrons from AM (the traditional electron donor), was synthesized at low temperatures under isolated conditions within inert gas matrixes and was characterized using infrared spectroscopy. The experimental generation of the NM-AM dimer stabilized via NN interaction has strong corroboration from ab initio calculations. Furthermore, confirmation regarding the directional prevalence of this NN interaction over C-HN and N-HO hydrogen bonding is elucidated quantitatively by quantum theory of atoms in molecules (QTAIM), electrostatic potential mapping (ESP), natural bond orbital (NBO), non-covalent interaction (NCI) and energy decomposition (ED) analyses. The present study also allows the extension of σ-hole/π-hole driven interactions to the atoms of the second period, in spite of their low polarizability.
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Affiliation(s)
- Swaroop Chandra
- Homi Bhabha National Institute, Materials Chemistry & Metal Fuel Cycle Group, Indira Gandhi Center for Atomic Research, Kalpakkam - 603102, Tamil Nadu, India.
| | - B Suryaprasad
- Homi Bhabha National Institute, Materials Chemistry & Metal Fuel Cycle Group, Indira Gandhi Center for Atomic Research, Kalpakkam - 603102, Tamil Nadu, India.
| | - N Ramanathan
- Homi Bhabha National Institute, Materials Chemistry & Metal Fuel Cycle Group, Indira Gandhi Center for Atomic Research, Kalpakkam - 603102, Tamil Nadu, India.
| | - K Sundararajan
- Homi Bhabha National Institute, Materials Chemistry & Metal Fuel Cycle Group, Indira Gandhi Center for Atomic Research, Kalpakkam - 603102, Tamil Nadu, India.
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9
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Sruthi PK, Chandra S, Ramanathan N, Sundararajan K. Unusual blue to red shifting of C-H stretching frequency of CHCl 3 in co-operatively P⋯Cl phosphorus bonded POCl 3-CHCl 3 heterodimers at low temperature inert matrixes. J Chem Phys 2020; 153:174305. [PMID: 33167652 DOI: 10.1063/5.0031162] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Heterodimers of POCl3-CHCl3 were generated in Ne, Ar, and Kr matrixes at low temperatures and were studied using infrared spectroscopy. The remarkable role of co-operative pentavalent phosphorus bonding in the stabilization of the structure dictated by hydrogen bonding is deciphered. The complete potential energy surface of the heterodimer was scanned by ab initio and density functional theory computational methodologies. The hydrogen bond between the phosphoryl oxygen of POCl3 and C-H group of CHCl3 in heterodimers induces a blue-shift in the C-H stretching frequency within the Ne matrix. However, in Ar and Kr matrixes, the C-H stretching frequency is exceptionally red-shifted in stark contrast with Ne. The plausibility of the Fermi resonance by the C-H stretching vibrational mode with higher order modes in the heterodimers has been eliminated as a possible cause within Ar and Kr matrixes by isotopic substitution (CDCl3) experiments. To evaluate the influence of matrixes as a possible cause of red-shift, self-consistent Iso-density polarized continuum reaction field model was applied. This conveyed the important role of the dielectric matrixes in inducing the fascinating vibrational shift from blue (Ne) to red (Ar and Kr) due to the matrix specific transmutation of the POCl3-CHCl3 structure. The heterodimer produced in the Ne matrix possesses a cyclic structure stabilized by hydrogen bonding with co-operative phosphorus bonding, while in Ar and Kr the generation of an acyclic open structure stabilized solely by hydrogen bonding is promoted. Compelling justification regarding the dispersion force based influence of matrix environments in addition to the well-known dielectric influence is presented.
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Affiliation(s)
- P K Sruthi
- Homi Bhabha National Institute, Materials Chemistry and Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India
| | - Swaroop Chandra
- Homi Bhabha National Institute, Materials Chemistry and Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India
| | - N Ramanathan
- Homi Bhabha National Institute, Materials Chemistry and Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India
| | - K Sundararajan
- Homi Bhabha National Institute, Materials Chemistry and Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India
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10
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Chandra S, Suryaprasad B, Ramanathan N, Sundararajan K. Dominance of unique Pπ phosphorus bonding with π donors: evidence using matrix isolation infrared spectroscopy and computational methodology. Phys Chem Chem Phys 2020; 22:20771-20791. [PMID: 32909555 DOI: 10.1039/d0cp02880k] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Albeit the first account of hypervalentπ interactions has been reported with halogenπ interactions, the feasibility of their extension to other hypervalent atoms as possible Lewis acids is still open. In this work, the role of phosphorus as an acceptor from the π electron cloud (Pπ pnicogen or phosphorus bonding) in PCl3-C2H2 and PCl3-C2H4 heterodimers is explored, by combining matrix isolation infrared spectroscopy with ab initio and DFT computational methodologies. The respective potential energy surfaces of the PCl3-C2H2 and PCl3-C2H4 heterodimers reveal unique minima stabilized by a concert of reasonably strong to weak interactions, of which Pπ phosphorus bonding was energetically dominant. Heterodimers, trimers and tetramers bound primarily by this unique phosphorus bond were generated at low temperatures. The dominance of phosphorus bonding in the PCl3-C2H2 and PCl3-C2H4 heterodimers over other interactions (such as Hπ, HCl, HP, Clπ and lone pair-π interactions) was confirmed and substantiated using extended quantum theory of atoms in molecules, natural bond orbital, electrostatic potential mapping and energy decomposition analyses. The following inferences in correlation with results from non-covalent-interaction analysis offer a complete understanding of the nature of the Pπ phosphorus bonding interactions. The significance of electrostatic forces kinetically favoring the formation of phosphorus bonded heterodimers, in addition to thermodynamic stabilization, is demonstrated experimentally.
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Affiliation(s)
- Swaroop Chandra
- Homi Bhabha National Institute, Materials Chemistry & Metal Fuel Cycle Group, Indira Gandhi Center for Atomic Research, Kalpakkam - 603102, Tamil Nadu, India.
| | - B Suryaprasad
- Homi Bhabha National Institute, Materials Chemistry & Metal Fuel Cycle Group, Indira Gandhi Center for Atomic Research, Kalpakkam - 603102, Tamil Nadu, India.
| | - N Ramanathan
- Homi Bhabha National Institute, Materials Chemistry & Metal Fuel Cycle Group, Indira Gandhi Center for Atomic Research, Kalpakkam - 603102, Tamil Nadu, India.
| | - K Sundararajan
- Homi Bhabha National Institute, Materials Chemistry & Metal Fuel Cycle Group, Indira Gandhi Center for Atomic Research, Kalpakkam - 603102, Tamil Nadu, India.
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11
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Del Bene JE, Alkorta I, Elguero J. Complexes H 2 CO:PXH 2 and HCO 2 H : PXH 2 for X=NC, F, Cl, CN, OH, CCH, CH 3 , and H: Pnicogen Bonds and Hydrogen Bonds. Chemphyschem 2020; 21:741-748. [PMID: 32069382 DOI: 10.1002/cphc.202000099] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 02/18/2020] [Indexed: 11/09/2022]
Abstract
Ab initio MP2/aug'-cc-pVTZ calculations have been carried out to investigate H2 CO : PXH2 pnicogen-bonded complexes and HCO2 H : PXH2 complexes that are stabilized by pnicogen bonds and hydrogen bonds, with X=NC, F, Cl, CN, OH, CCH, CH3 , and H. The binding energies of these complexes exhibit a second-order dependence on the O-P distance. DFT-SAPT binding energies correlate linearly with MP2 binding energies. The HCO2 H : PXH2 complexes are stabilized by both a pnicogen bond and a hydrogen bond, resulting in greater binding energies for the HCO2 H : PXH2 complexes compared to H2 CO : PXH2 . Neither the O-P distance across the pnicogen bond nor the O-P distance across the hydrogen bond correlates with the binding energies of these complexes. The nonlinearity of the hydrogen bonds suggests that they are relatively weak bonds, except for complexes in which the substituent X is either CH3 or H. The pnicogen bond is the more important stabilizing interaction in the HCO2 H : PXH2 complexes except when the substituent X is a more electropositive group. EOM-CCSD spin-spin coupling constants 1p J(O-P) across pnicogen bonds in H2 CO:PXH2 and HCO2 H : PXH2 complexes increase as the O-P distance decreases, and exhibit a second order dependence on that distance. There is no correlation between 2h J(O-P) and the O-P distance across the hydrogen bond in the HCO2 H : PXH2 complexes. 2h J(O-P) coupling constants for complexes with X=CH3 and H have much greater absolute values than anticipated from their O-P distances.
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Affiliation(s)
- Janet E Del Bene
- Department of Chemistry, Youngstown State University, Youngstown, Ohio, 44555, USA
| | - Ibon Alkorta
- Instituto de Química Médica (IQM-CSIC), Juan de la Cierva, 3, 28006, Madrid, Spain
| | - José Elguero
- Instituto de Química Médica (IQM-CSIC), Juan de la Cierva, 3, 28006, Madrid, Spain
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12
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Towards an unified chemical model of secondary bonding. J Mol Model 2020; 26:62. [DOI: 10.1007/s00894-019-4283-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 12/19/2019] [Indexed: 11/27/2022]
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13
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On the ability of pnicogen atoms to engage in both σ and π-hole complexes. Heterodimers of ZF 2C 6H 5 (Z = P, As, Sb, Bi) and NH 3. J Mol Model 2019; 25:152. [PMID: 31069527 DOI: 10.1007/s00894-019-4031-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 04/07/2019] [Indexed: 01/11/2023]
Abstract
When bound to a pair of F atoms and a phenyl ring, a pyramidal pnicogen (Z) atom can form a pnicogen bond wherein an NH3 base lies opposite one F atom. In addition to this σ-hole complex, the ZF2C6H5 molecule can distort in such a way that the NH3 approaches on the opposite side to the lone pair on Z, where there is a so-called π-hole. The interaction energies of these π-hole dimers are roughly 30 kcal/mol, much larger than the equivalent quantities for the σ-hole complexes, which are only 4-13 kcal/mol. On the other hand, this large interaction energy is countered by the considerable deformation energy required for the Lewis acid to adopt the geometry necessary to form the π-hole complex. The overall energetics of the complexation reaction are thus more exothermic for the σ-hole dimers than for the π-hole dimers.
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14
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Sruthi PK, Sarkar S, Ramanathan N, Sundararajan K. Elusive hypervalent phosphorus⋯π interactions: evidence for paradigm transformation from hydrogen to phosphorus bonding at low temperatures. Phys Chem Chem Phys 2019; 21:12250-12264. [DOI: 10.1039/c9cp01925a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A paradigm transformation from hydrogen to phosphorus bonding is found to depend on the proton affinity of the interacting π-systems.
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Affiliation(s)
- P. K. Sruthi
- Materials Chemistry and Metal Fuel Cycle Group
- Homi Bhabha National Institute
- Indira Gandhi Centre for Atomic Research
- Kalpakkam-603 102
- India
| | - Shubhra Sarkar
- Materials Chemistry and Metal Fuel Cycle Group
- Homi Bhabha National Institute
- Indira Gandhi Centre for Atomic Research
- Kalpakkam-603 102
- India
| | - N. Ramanathan
- Materials Chemistry and Metal Fuel Cycle Group
- Homi Bhabha National Institute
- Indira Gandhi Centre for Atomic Research
- Kalpakkam-603 102
- India
| | - K. Sundararajan
- Materials Chemistry and Metal Fuel Cycle Group
- Homi Bhabha National Institute
- Indira Gandhi Centre for Atomic Research
- Kalpakkam-603 102
- India
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15
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Zierkiewicz W, Michalczyk M, Scheiner S. Implications of monomer deformation for tetrel and pnicogen bonds. Phys Chem Chem Phys 2018. [DOI: 10.1039/c8cp00430g] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Monomer rearrangement raises the interaction energy by up to 20 kcal mol−1and intensifies its σ-hole by a factor of 1.5–2.9.
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Affiliation(s)
- Wiktor Zierkiewicz
- Faculty of Chemistry
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
| | - Mariusz Michalczyk
- Faculty of Chemistry
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
| | - Steve Scheiner
- Department of Chemistry and Biochemistry
- Utah State University
- Logan
- USA
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16
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Sruthi PK, Ramanathan N, Sarkar S, Sundararajan K. Pentavalent phosphorus as a unique phosphorus donor in POCl3 homodimer and POCl3–H2O heterodimer: matrix isolation infrared spectroscopic and computational studies. Phys Chem Chem Phys 2018; 20:22058-22075. [DOI: 10.1039/c8cp03937b] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Phosphorus, an important element among the pnicogen group, opens up avenues for experimental and computational explorations of its interaction in a variety of compounds.
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Affiliation(s)
- P. K. Sruthi
- Materials Chemistry & Metal Fuel Cycle Group
- Homi Bhabha National Institute, Indira Gandhi Centre for Atomic Research
- Kalpakkam 603 102
- India
| | - N. Ramanathan
- Materials Chemistry & Metal Fuel Cycle Group
- Homi Bhabha National Institute, Indira Gandhi Centre for Atomic Research
- Kalpakkam 603 102
- India
| | - Shubhra Sarkar
- Materials Chemistry & Metal Fuel Cycle Group
- Homi Bhabha National Institute, Indira Gandhi Centre for Atomic Research
- Kalpakkam 603 102
- India
| | - K. Sundararajan
- Materials Chemistry & Metal Fuel Cycle Group
- Homi Bhabha National Institute, Indira Gandhi Centre for Atomic Research
- Kalpakkam 603 102
- India
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17
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McDowell SAC. The effect of anions on noncovalent interactions in model clusters of chalcogen-containing (CH3)2X (X = O, S, Se) molecules. Phys Chem Chem Phys 2018; 20:18420-18428. [DOI: 10.1039/c8cp03641a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A computational study of F−⋯(CH3)2O⋯CH3F with F− bound to the protons of the two methyl groups, found significant enhancement of the O⋯C interaction relative to the neutral (CH3)2O⋯CH3F dyad.
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Affiliation(s)
- Sean A. C. McDowell
- Department of Biological and Chemical Sciences
- The University of the West Indies
- Barbados
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18
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Pnictogen bonding in pyrazine•PnX5 (Pn = P, As, Sb and X = F, Cl, Br) complexes. J Mol Model 2017; 23:328. [DOI: 10.1007/s00894-017-3502-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 10/10/2017] [Indexed: 01/28/2023]
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19
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Roohi H, Tondro T. Exploring the pnicogen bond non-covalent interactions in 4-XPhNH2:PFnH3-n complexes (n = 1–3, X = H, F, CN, CHO, NH2, CH3, NO2 and OCH3). J Fluor Chem 2017. [DOI: 10.1016/j.jfluchem.2017.08.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Pnicogen bond interaction between PF2Y (Y = –C☰N, –N☰C) with NH3, CH3OH, H2O, and HF molecules. Struct Chem 2017. [DOI: 10.1007/s11224-017-0968-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Wang Y, Li X, Zeng Y, Meng L, Zhang X. Theoretical insights into the π-hole interactions in the complexes containing triphosphorus hydride (P 3H 3) and its derivatives. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2017; 73:195-202. [PMID: 28362282 DOI: 10.1107/s2052520616019223] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 12/02/2016] [Indexed: 06/07/2023]
Abstract
The π-hole of triphosphorus hydride (P3H3) and its derivatives Z3X3 (Z = P, As; X = H, F, Cl, Br) was discovered and analyzed. MP2/aug-cc-pVDZ calculations were performed on the π-hole interactions in the HCN...Z3X3 complexes and the mutual influence between π-hole interactions and the hydrogen bond in the HCN...HCN...Z3X3 and HCN...Z3X3...HCN complexes studied. The π-hole interaction belongs to the typical closed-shell noncovalent interaction. The linear relationship was found between the most positive electrostatic potential of the π-hole (VS,max) and the interaction energy. Moreover, the VS,max of the π-hole was also found to be linearly correlated to the electrostatic energy term, indicating the important contribution of the electrostatic energy term to the π-hole interaction. There is positive cooperativity between the π-hole interaction and the hydrogen bond in the termolecular complexes. The π-hole interaction has a greater influence on the hydrogen bond than vice versa. The mutual enhancing effect between the π-hole interaction and the hydrogen bond in the HCN...HCN...Z3X3 complexes is greater than that in the HCN...Z3X3...HCN complexes.
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Affiliation(s)
- Yuehong Wang
- College of Chemistry and Material Sciences, Key Laboratory of Inorganic Nano-materials of Hebei Province, Hebei Normal University, Shijiazhuang, Hebei 050024, People's Republic of China
| | - Xiaoyan Li
- College of Chemistry and Material Sciences, Key Laboratory of Inorganic Nano-materials of Hebei Province, Hebei Normal University, Shijiazhuang, Hebei 050024, People's Republic of China
| | - Yanli Zeng
- College of Chemistry and Material Sciences, Key Laboratory of Inorganic Nano-materials of Hebei Province, Hebei Normal University, Shijiazhuang, Hebei 050024, People's Republic of China
| | - Lingpeng Meng
- College of Chemistry and Material Sciences, Key Laboratory of Inorganic Nano-materials of Hebei Province, Hebei Normal University, Shijiazhuang, Hebei 050024, People's Republic of China
| | - Xueying Zhang
- College of Chemistry and Material Sciences, Key Laboratory of Inorganic Nano-materials of Hebei Province, Hebei Normal University, Shijiazhuang, Hebei 050024, People's Republic of China
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22
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The mutual influence between π-hole pnicogen bonds and σ-hole halogen bonds in complexes of PO2Cl and XCN/C6H6 (X = F, Cl, Br). Struct Chem 2016. [DOI: 10.1007/s11224-016-0762-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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23
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Bauzá A, Mooibroek TJ, Frontera A. σ-Hole Opposite to a Lone Pair: Unconventional Pnicogen Bonding Interactions between ZF3(Z=N, P, As, and Sb) Compounds and Several Donors. Chemphyschem 2016; 17:1608-14. [DOI: 10.1002/cphc.201600073] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 02/24/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Antonio Bauzá
- Departament de Química; Universitat de les Illes Balears; Crta. de Valldemossa km 7.5 07122 Palma de Mallorca (Baleares) Spain
| | - Tiddo J. Mooibroek
- School of Chemistry of the; University of Bristol; Cantock's Close BS8 1TS Bristol UK
| | - Antonio Frontera
- Departament de Química; Universitat de les Illes Balears; Crta. de Valldemossa km 7.5 07122 Palma de Mallorca (Baleares) Spain
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24
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Ramanathan N, Sundararajan K, Vidya K, Jemmis ED. Non-covalent C-Cl…π interaction in acetylene-carbon tetrachloride adducts: Matrix isolation infrared and ab initio computational studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 157:69-78. [PMID: 26722673 DOI: 10.1016/j.saa.2015.12.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 11/23/2015] [Accepted: 12/14/2015] [Indexed: 06/05/2023]
Abstract
Non-covalent halogen-bonding interactions between π cloud of acetylene (C2H2) and chlorine atom of carbon tetrachloride (CCl4) have been investigated using matrix isolation infrared spectroscopy and quantum chemical computations. The structure and the energies of the 1:1 C2H2-CCl4 adducts were computed at the B3LYP, MP2 and M05-2X levels of theory using 6-311++G(d,p) basis set. The computations indicated two minima for the 1:1 C2H2-CCl4 adducts; with the C-Cl…π adduct being the global minimum, where π cloud of C2H2 is the electron donor. The second minimum corresponded to a C-H…Cl adduct, in which C2H2 is the proton donor. The interaction energies for the adducts A and B were found to be nearly identical. Experimentally, both C-Cl…π and C-H…Cl adducts were generated in Ar and N2 matrixes and characterized using infrared spectroscopy. This is the first report on halogen bonded adduct, stabilized through C-Cl…π interaction being identified at low temperatures using matrix isolation infrared spectroscopy. Atoms in Molecules (AIM) and Natural Bond Orbital (NBO) analyses were performed to support the experimental results. The structures of 2:1 ((C2H2)2-CCl4) and 1:2 (C2H2-(CCl4)2) multimers and their identification in the low temperature matrixes were also discussed.
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Affiliation(s)
- N Ramanathan
- Chemistry Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, India
| | - K Sundararajan
- Chemistry Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, India.
| | - K Vidya
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram, Kerala 695016, India
| | - Eluvathingal D Jemmis
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India.
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25
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Esrafili MD, Asadollahi S. Cationic P⋯N interaction in XH 3 P + ⋯NCY complexes (X = H, F, CN, NH 2 , OH; Y = H, Li, F, Cl) and its cooperativity with hydrogen/lithium/halogen bond. J Mol Graph Model 2016; 64:131-138. [DOI: 10.1016/j.jmgm.2016.01.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 01/22/2016] [Accepted: 01/27/2016] [Indexed: 12/27/2022]
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26
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27
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Sánchez-Sanz G, Trujillo C, Alkorta I, Elguero J. Modulating intramolecular P⋯N pnictogen interactions. Phys Chem Chem Phys 2016; 18:9148-60. [DOI: 10.1039/c6cp00227g] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The strength of P⋯N intramolecular pnictogen interactions can be modulated, enhanced or diminished upon substitution of different electron withdrawing or donor groups.
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Affiliation(s)
| | - Cristina Trujillo
- School of Chemistry
- Trinity Biomedical Sciences Institute
- Trinity College Dublin
- Dublin 2
- Ireland
| | - Ibon Alkorta
- Instituto de Química Médica
- CSIC
- E-28006 Madrid
- Spain
| | - José Elguero
- Instituto de Química Médica
- CSIC
- E-28006 Madrid
- Spain
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28
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Ramanathan N, Sankaran K, Sundararajan K. PCl3–C6H6 heterodimers: evidence for P⋯π phosphorus bonding at low temperatures. Phys Chem Chem Phys 2016; 18:19350-8. [DOI: 10.1039/c6cp03825e] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A phosphorous trichloride (PCl3)–benzene (C6H6) heterodimer was generated in a low temperature N2 matrix and was characterized using infrared spectroscopy.
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Affiliation(s)
- N. Ramanathan
- Chemistry Group
- Indira Gandhi Center for Atomic Research
- Kalpakkam – 603102
- India
| | - K. Sankaran
- Chemistry Group
- Indira Gandhi Center for Atomic Research
- Kalpakkam – 603102
- India
| | - K. Sundararajan
- Chemistry Group
- Indira Gandhi Center for Atomic Research
- Kalpakkam – 603102
- India
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29
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Nziko VDPN, Scheiner S. Comparison of π-hole tetrel bonding with σ-hole halogen bonds in complexes of XCN (X = F, Cl, Br, I) and NH3. Phys Chem Chem Phys 2016; 18:3581-90. [DOI: 10.1039/c5cp07545a] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
In addition to the standard halogen bond formed when NH3approaches XCN (X = F, Cl, Br, I) along its molecular axis, a perpendicular approach is also possible, toward a π-hole that is present above the X–C bond.
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Affiliation(s)
| | - Steve Scheiner
- Department of Chemistry and Biochemistry
- Utah State University
- Logan
- USA
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30
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Southern SA, Bryce DL. NMR Investigations of Noncovalent Carbon Tetrel Bonds. Computational Assessment and Initial Experimental Observation. J Phys Chem A 2015; 119:11891-9. [PMID: 26562616 DOI: 10.1021/acs.jpca.5b10848] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Group IV tetrel elements may act as tetrel bond donors, whereby a region of positive electrostatic potential (σ-hole) interacts with a Lewis base. The results of calculations of NMR parameters are reported for a series of model compounds exhibiting tetrel bonding from a methyl carbon to the oxygen or nitrogen atoms in various functional groups. The (13)C chemical shift (δiso) and the (1c)J((13)C,Y) coupling (Y = (17)O, (15)N) across the tetrel bond are recorded as a function of geometry. The sensitivity of the NMR parameters to the noncovalent interaction is demonstrated via an increase in δiso and in |(1c)J((13)C,Y)| as the tetrel bond shortens. Gauge-including projector-augmented wave density functional theory (DFT) calculations of δiso are reported for crystals that exhibit tetrel bonding in the solid state. Experimental δiso values for solid sarcosine and its tetrel-bonded salts corroborate the computational findings. This work offers new insights into tetrel bonding and facilitates the incorporation of tetrel bonds as restraints in NMR crystallographic structure refinement.
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Affiliation(s)
- Scott A Southern
- Department of Chemistry and Biomolecular Sciences & Centre for Catalysis Research and Innovation, University of Ottawa , 10 Marie Curie Private, Ottawa, Ontario K1N 6N5, Canada
| | - David L Bryce
- Department of Chemistry and Biomolecular Sciences & Centre for Catalysis Research and Innovation, University of Ottawa , 10 Marie Curie Private, Ottawa, Ontario K1N 6N5, Canada
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31
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Esrafili MD, Nurazar R. Chalcogen bonds formed through π-holes: SO3 complexes with nitrogen and phosphorus bases. Mol Phys 2015. [DOI: 10.1080/00268976.2015.1098742] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Mehdi D. Esrafili
- Laboratory of Theoretical Chemistry, Department of Chemistry, University of Maragheh, Maragheh, Iran
| | - Roghaye Nurazar
- Laboratory of Theoretical Chemistry, Department of Chemistry, University of Maragheh, Maragheh, Iran
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32
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Esrafili MD, Mohammadian-Sabet F. Tuning tetrel bonds via cation–π interactions: anab initiostudy on concerted interaction in M+–C6H5XH3–NCY complexes (M = Li, Na, K; X = Si, Ge; Y = H, F, OH). Mol Phys 2015. [DOI: 10.1080/00268976.2015.1086498] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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33
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Bene JED, Alkorta I, Elguero J. Properties of cationic pnicogen-bonded complexes F4-nHnP+:N-base with H–P···N linear andn= 1–4. Mol Phys 2015. [DOI: 10.1080/00268976.2015.1086835] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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34
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Bauzá A, Frontera A. Theoretical Study on the Dual Behavior of XeO3and XeF4toward Aromatic Rings: Lone Pair-π versus Aerogen-π Interactions. Chemphyschem 2015; 16:3625-30. [DOI: 10.1002/cphc.201500757] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Indexed: 01/18/2023]
Affiliation(s)
- Antonio Bauzá
- Departament de Química; Universitat de les Illes Balears; Crta. de Valldemossa km 7.5 07122 Palma de Mallorca, Baleares Spain
| | - Antonio Frontera
- Departament de Química; Universitat de les Illes Balears; Crta. de Valldemossa km 7.5 07122 Palma de Mallorca, Baleares Spain
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35
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36
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Bauzá A, Frontera A. Competition between Halogen Bonding and π-Hole Interactions Involving Various Donors: The Role of Dispersion Effects. Chemphyschem 2015; 16:3108-13. [DOI: 10.1002/cphc.201500542] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Indexed: 11/11/2022]
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37
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Esrafili MD, Mohammadian-Sabet F. Bifurcated chalcogen bonds: A theoretical study on the structure, strength and bonding properties. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2015.06.034] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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38
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Marín-Luna M, Alkorta I, Elguero J. A computational study on [(PH2X)2]·+ homodimers involving intermolecular two-center three-electron bonds. Struct Chem 2015. [DOI: 10.1007/s11224-015-0617-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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39
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The Bright Future of Unconventional σ/π-Hole Interactions. Chemphyschem 2015; 16:2496-517. [DOI: 10.1002/cphc.201500314] [Citation(s) in RCA: 475] [Impact Index Per Article: 52.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Indexed: 01/25/2023]
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40
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Esrafili MD, Mohammadirad N. An ab initio study on tunability of σ-hole interactions in XHS:PH2Y and XH2P:SHY complexes (X = F, Cl, Br; Y = H, OH, OCH3, CH3, C2H5, and NH2). J Mol Model 2015; 21:176. [PMID: 26093685 DOI: 10.1007/s00894-015-2727-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 06/08/2015] [Indexed: 11/26/2022]
Abstract
Quantum chemical calculations are performed to investigate the tunability of σ-hole interactions in chalcogen-bonded XHS:PH2Y and pnicogen-bonded XH2P:SHY complexes, where X = F, Cl, Br and Y = H, OH, OCH3, CH3, C2H5, NH2. The formation of these binary complexes can be understood in terms of molecular electrostatic potentials (MEPs), considering the P and S atoms as an electron acceptor or an electron donor in the chalcogen and pnicogen bonds. The strength of the XHS:PH2Y and XH2P:SHY complexes for a given Y increases as follows: X = Br < Cl < F. In addition, an acceptable linear relationship is found between the interaction energies and the magnitudes of the product of most positive and negative MEPs. This finding along with the electron density difference maps provides a clear picture of the electrostatic nature of the interactions in the XHS:PH2Y and XH2P:SHY complexes. The calculated spin-spin coupling constants across the chalcogen bond interactions in the XHS:PH2Y complexes display a quadratic dependence with the P···S binding distance.
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Affiliation(s)
- Mehdi D Esrafili
- Laboratory of Theoretical Chemistry, Department of Chemistry, University of Maragheh, P.O. Box: 5513864596, Maragheh, Iran,
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41
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Esrafili MD, Nurazar R, Mohammadian-Sabet F. Cooperative effects between tetrel bond and other σ–hole bond interactions: a comparative investigation. Mol Phys 2015. [DOI: 10.1080/00268976.2015.1053550] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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42
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Del Bene JE, Alkorta I, Elguero J. Properties of Cationic Pnicogen-Bonded Complexes F4–nHnP+:N-Base with F–P···N Linear and n = 0–3. J Phys Chem A 2015; 119:5853-64. [DOI: 10.1021/acs.jpca.5b03035] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Janet E. Del Bene
- Department of Chemistry, Youngstown State University, Youngstown, Ohio 44555, United States
| | - Ibon Alkorta
- Instituto de Química Médica (IQM-CSIC), Juan de la
Cierva, 3, E-28006 Madrid, Spain
| | - José Elguero
- Instituto de Química Médica (IQM-CSIC), Juan de la
Cierva, 3, E-28006 Madrid, Spain
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43
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Liu C, Zeng Y, Li X, Meng L, Zhang X. A comprehensive analysis of P···π pnicogen bonds: substitution effects and comparison with Br···π halogen bonds. J Mol Model 2015; 21:143. [DOI: 10.1007/s00894-015-2697-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 05/04/2015] [Indexed: 11/29/2022]
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44
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Cañellas S, Bauzá A, Lancho A, García-Raso A, Fiol JJ, Molins E, Ballester P, Frontera A. Synthesis, X-ray characterization and DFT studies of N-benzimidazolyl-pyrimidine–M(ii) complexes (M = Cu, Co and Ni): the prominent role of π-hole and anion–π interactions. CrystEngComm 2015. [DOI: 10.1039/c5ce01009h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Five Cu(ii), Co(ii) and Ni(ii) complexes with 2-(N-benzimidazolyl)-pyrimidine and nitrate co-ligands have been synthesized and characterized by X-ray diffraction.
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Affiliation(s)
- Santiago Cañellas
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma de Mallorca (Baleares), Spain
| | - Antonio Bauzá
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma de Mallorca (Baleares), Spain
| | - Aïda Lancho
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma de Mallorca (Baleares), Spain
| | - Angel García-Raso
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma de Mallorca (Baleares), Spain
| | - Joan J. Fiol
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma de Mallorca (Baleares), Spain
| | - Elies Molins
- Institut de Ciència de Materials de Barcelona (CSIC)
- Campus UAB
- , Spain
| | - Pablo Ballester
- Institute of Chemical Research of Catalonia (ICIQ)
- Avgda. Països Catalans 16
- 43007 Tarragona, Spain and Catalan Institution for Research and Advanced Studies (ICREA)
- Passeig Lluís Companys, 23
- Barcelona, Spain
| | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma de Mallorca (Baleares), Spain
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45
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Structures and stabilities of hemi-bonded vs proton-transferred isomers of dimer radical cation systems (XH 3 YH 3 ) + (X,Y = N, P, As). Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2014.11.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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46
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Del Bene JE, Alkorta I, Elguero J. The Pnicogen Bond in Review: Structures, Binding Energies, Bonding Properties, and Spin-Spin Coupling Constants of Complexes Stabilized by Pnicogen Bonds. CHALLENGES AND ADVANCES IN COMPUTATIONAL CHEMISTRY AND PHYSICS 2015. [DOI: 10.1007/978-3-319-14163-3_8] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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47
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Roy S, Bauza A, Frontera A, Banik R, Purkayastha A, Drew MGB, Reddy BM, Sridhar B, Das SK, Das S. Experimental observation and theoretical investigation of a novel Cd(ii) complex with π-hole interactions involving nitro groups. CrystEngComm 2015. [DOI: 10.1039/c5ce00453e] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cadmium(ii) complex, which represents a novel example of supramolecular system bearing a network of π-hole interactions, has been synthesized.
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Affiliation(s)
- Subhadip Roy
- Department of Chemistry
- National Institute of Technology (NIT) Agartala
- Tripura, India
| | - Antonio Bauza
- Departament de Quimica
- Universitat de les Illes Balears
- 07122 Palma de Mallorca, Spain
| | - Antonio Frontera
- Departament de Quimica
- Universitat de les Illes Balears
- 07122 Palma de Mallorca, Spain
| | - Rupak Banik
- Department of Chemistry
- National Institute of Technology (NIT) Agartala
- Tripura, India
| | - Atanu Purkayastha
- Department of Chemistry
- National Institute of Technology (NIT) Agartala
- Tripura, India
| | | | - Benjaram M. Reddy
- Inorganic and Physical Chemistry Division
- Indian Institute of Chemical Technology
- Hyderabad, India
| | | | - Saroj Kr. Das
- Department of Chemistry
- National Institute of Technology (NIT) Agartala
- Tripura, India
| | - Subrata Das
- Department of Chemistry
- National Institute of Technology (NIT) Patna
- Ashok Rajpath
- Patna-800005, India
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48
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Zhuo H, Li Q, Li W, Cheng J. The dual role of pnicogen as Lewis acid and base and the unexpected interplay between the pnicogen bond and coordination interaction in H3N⋯FH2X⋯MCN (X = P and As; M = Cu, Ag, and Au). NEW J CHEM 2015. [DOI: 10.1039/c4nj02051k] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ternary systems H3N⋯FH2X⋯MCN (X = P and As; M = Cu, Ag, and Au) as well as the corresponding pnicogen-bonded and coordination-bonded binary systems have been studied.
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Affiliation(s)
- Hongying Zhuo
- 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
| | - Wenzuo 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
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49
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Zhuo H, Li Q, Li W, Cheng J. Non-additivity between substitution and cooperative effects in enhancing hydrogen bonds. J Chem Phys 2014; 141:244305. [DOI: 10.1063/1.4904294] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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50
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Del Bene JE, Alkorta I, Elguero J. Substituent Effects on the Properties of Pnicogen-Bonded Complexes H2XP:PYH2, for X, Y = F, Cl, OH, NC, CCH, CH3, CN, and H. J Phys Chem A 2014; 119:224-33. [DOI: 10.1021/jp5117504] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Janet E. Del Bene
- Department
of Chemistry, Youngstown State University, Youngstown, Ohio 44555, United States
| | - Ibon Alkorta
- Instituto de Química Médica (IQM-CSIC), Juan de la Cierva, 3, E-28006 Madrid, Spain
| | - José Elguero
- Instituto de Química Médica (IQM-CSIC), Juan de la Cierva, 3, E-28006 Madrid, Spain
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