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Naganandhini S, Sangeetha T, Sahana R, Mounica P, Rajmohan G, Dineshkumar P, Arivazhagan G. Theoretical discussion on the Hydrogen Bond Interactions between Acrylic Acid dimer and dibutyl ether Monomer. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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2
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Sangeetha T, Naganandhini SP, Shanmugam R, Arivazhagan G. FTIR Spectral Signatures of Formamide + Propionic/Acetic Acid Solutions. J SOLUTION CHEM 2022. [DOI: 10.1007/s10953-022-01139-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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3
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Cuc NTT, An NT, Ngan VT, Chandra AK, Trung NT. Importance of water and intramolecular interaction governs substantial blue shift of Csp2–H stretching frequency in complexes between chalcogenoaldehydes and water. RSC Adv 2022; 12:1998-2008. [PMID: 35425273 PMCID: PMC8979115 DOI: 10.1039/d1ra07444j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 01/04/2022] [Indexed: 11/25/2022] Open
Abstract
Geometrical structure, stability and cooperativity, and contribution of hydrogen bonds to the stability of complexes between chalcogenoaldehydes and water were thoroughly investigated using quantum chemical methods. The stability of the complexes increases significantly when one or more H2O molecules are added to the binary system, whereas it decreases sharply going from O to S, Se, or Te substitution. The O–H⋯O H-bond is twice as stable as Csp2–H⋯O and O–H⋯S/Se/Te H-bonds. It is found that a considerable blue-shift of Csp2–H stretching frequency in the Csp2–H⋯O H-bond is mainly determined by an addition of water into the complexes along with the low polarity of the Csp2–H covalent bond in formaldehyde and acetaldehyde. The Csp2–H stretching frequency shift as a function of net second hyperconjugative energy for the σ*(Csp2–H) antibonding orbital is observed. Remarkably, a considerable Csp2–H blue shift of 109 cm−1 has been reported for the first time. Upon the addition of H2O into the binary systems, halogenated complexes witness a decreasing magnitude of the Csp2–H stretching frequency blue-shift in the Csp2–H⋯O H-bond, whereas CH3-substituted complexes experience the opposite trend. The considerable blue shift of Csp2–H stretching frequency.![]()
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Affiliation(s)
- Nguyen Thi Thanh Cuc
- Laboratory of Computational Chemistry and Modelling (LCCM), Department of Chemistry, Faculty of Natural Sciences, Quy Nhon University, Vietnam
| | - Nguyen Truong An
- Laboratory of Computational Chemistry and Modelling (LCCM), Department of Chemistry, Faculty of Natural Sciences, Quy Nhon University, Vietnam
| | - Vu Thi Ngan
- Laboratory of Computational Chemistry and Modelling (LCCM), Department of Chemistry, Faculty of Natural Sciences, Quy Nhon University, Vietnam
| | - Asit. K. Chandra
- Department of Chemistry, North-Eastern Hill University, Shillong 793022, Meghalaya, India
| | - Nguyen Tien Trung
- Laboratory of Computational Chemistry and Modelling (LCCM), Department of Chemistry, Faculty of Natural Sciences, Quy Nhon University, Vietnam
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4
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An NT, Duong NT, Tri NN, Trung NT. Role of O–H⋯O/S conventional hydrogen bonds in considerable C sp2–H blue-shift in the binary systems of acetaldehyde and thioacetaldehyde with substituted carboxylic and thiocarboxylic acids. RSC Adv 2022; 12:35309-35319. [DOI: 10.1039/d2ra05391h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 11/27/2022] [Indexed: 12/13/2022] Open
Abstract
The presence of O–H⋯O/S conventional hydrogen bonds in the complex governs a significant blue shift of Csp2–H bonds.
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Affiliation(s)
- Nguyen Truong An
- Faculty of Natural Sciences, Quy Nhon University, Quy Nhon, Vietnam
| | - Nguyen Thi Duong
- Faculty of Natural Sciences, Quy Nhon University, Quy Nhon, Vietnam
| | - Nguyen Ngoc Tri
- Faculty of Natural Sciences, Quy Nhon University, Quy Nhon, Vietnam
- Laboratory of Computational Chemistry and Modelling (LCCM), Quy Nhon University, Quy Nhon, Vietnam
| | - Nguyen Tien Trung
- Faculty of Natural Sciences, Quy Nhon University, Quy Nhon, Vietnam
- Laboratory of Computational Chemistry and Modelling (LCCM), Quy Nhon University, Quy Nhon, Vietnam
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5
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Pal D, Chakraborty A, Chakraborty S. Investigation of [CHCl3-CH3OH] complex using matrix-isolation IR spectroscopy and quantum chemical calculation: Evidence of hydrogen- and halogen-bonding interaction. Chem Phys 2022. [DOI: 10.1016/j.chemphys.2022.111451] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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6
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Cuc NTT, Phan CTD, Nhung NTA, Nguyen MT, Trung NT, Ngan VT. Theoretical Aspects of Nonconventional Hydrogen Bonds in the Complexes of Aldehydes and Hydrogen Chalcogenides. J Phys Chem A 2021; 125:10291-10302. [PMID: 34818019 DOI: 10.1021/acs.jpca.1c06708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hydrogen bonds (H-bonds) in the complexes between aldehydes and hydrogen chalcogenides, XCHO...nH2Z with X = H, F, Cl, Br, and CH3, Z = O, S, Se, and Te, and n = 1,2, were investigated using high-level ab initio calculations. The Csp2-H...O H-bonds are found to be about twice as strong as the Csp2-H...S/Se/Te counterparts. Remarkably, the S/Se/Te-H...S/Se/Te H-bonds are 4.5 times as weak as the O-H...O ones. The addition of the second H2Z molecule into binary systems induces stronger complexes and causes a positive cooperative effect in ternary complexes. The blue shift of Csp2-H stretching frequency involving the Csp2-H...Z H-bond sharply increases when replacing one H atom in HCHO by a CH3 group. In contrast, when one H atom in HCHO is substituted with a halogen, the magnitude of blue-shifting of the Csp2-H...Z H-bond becomes smaller. The largest blue shift up to 92 cm-1 of Csp2-H stretching frequency in Csp2-H...O H-bond in CH3CHO...2H2O has rarely been observed and is much greater than that in the cases of the Csp2-H...S/Se/Te ones. The Csp2-H blue shift of Csp2-H...Z bonds in the halogenated aldehydes is converted into a red shift when H2O is replaced by a heavier analogue, such as H2S, H2Se, or H2Te. The stability and classification of nonconventional H-bonds including Csp2-H...Se/Te, Te-H...Te, and Se/Te-H...O have been established for the first time.
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Affiliation(s)
- Nguyen Thi Thanh Cuc
- Laboratory of Computational Chemistry and Modelling (LCCM), Faculty of Natural Sciences, Quy Nhon University, Quy Nhon 55100, Vietnam
| | - Cam-Tu Dang Phan
- Laboratory of Computational Chemistry and Modelling (LCCM), Faculty of Natural Sciences, Quy Nhon University, Quy Nhon 55100, Vietnam
| | - Nguyen Thi Ai Nhung
- Department of Chemistry, University of Sciences, Hue University, Hue 49000, Vietnam
| | | | - Nguyen Tien Trung
- Laboratory of Computational Chemistry and Modelling (LCCM), Faculty of Natural Sciences, Quy Nhon University, Quy Nhon 55100, Vietnam
| | - Vu Thi Ngan
- Laboratory of Computational Chemistry and Modelling (LCCM), Faculty of Natural Sciences, Quy Nhon University, Quy Nhon 55100, Vietnam
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7
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Eckstein BJ, Brown LC, Noll BC, Moghadasnia MP, Balaich GJ, McGuirk CM. A Porous Chalcogen-Bonded Organic Framework. J Am Chem Soc 2021; 143:20207-20215. [PMID: 34818002 DOI: 10.1021/jacs.1c08642] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The manner of bonding between constituent atoms or molecules invariably influences the properties of materials. Perhaps no material family is more emblematic of this than porous frameworks, wherein the namesake modes of connectivity give rise to discrete subclasses with unique collections of properties. However, established framework classes often display offsetting advantages and disadvantages for a given application. Thus, there exists no universally applicable material, and the discovery of alternative modes of framework connectivity is highly desirable. Here we show that chalcogen bonding, a subclass of σ-hole bonding, is a viable mode of connectivity in low-density porous frameworks. Crystallization studies with the triptycene tris(1,2,5-selenadiazole) molecular tecton reveal how chalcogen bonding can template high-energy lattice structures and how solvent conditions can be rationalized to obtain molecularly programmed porous chalcogen-bonded organic frameworks (ChOFs). These results provide the first evidence that σ-hole bonding can be used to advance the diversity of porous framework materials.
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Affiliation(s)
- Brian J Eckstein
- Department of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Loren C Brown
- Department of Chemistry and Chemistry Research Center, Laboratories for Advanced Materials, United States Air Force Academy, Colorado Springs, Colorado 80840, United States
| | - Bruce C Noll
- Bruker AXS Inc., 5465 East Cheryl Parkway, Madison, Wisconsin 53711, United States
| | - Michael P Moghadasnia
- Department of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Gary J Balaich
- Department of Chemistry and Chemistry Research Center, Laboratories for Advanced Materials, United States Air Force Academy, Colorado Springs, Colorado 80840, United States
| | - C Michael McGuirk
- Department of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States
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8
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Sánchez-Férez F, Solans-Monfort X, Calvet T, Font-Bardia M, Pons J. Influence of Aromatic Cations on the Structural Arrangement of Hg(II) Halides. ACS OMEGA 2020; 5:29357-29372. [PMID: 33225167 PMCID: PMC7676345 DOI: 10.1021/acsomega.0c04175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 10/16/2020] [Indexed: 06/11/2023]
Abstract
Understanding the structure and arrangement of hybrid metal halides and their contribution to the optoelectronic properties is, thus far, a challenging topic. In particular, new materials composed of d10 metal halides and pyridinium cations are still largely unexplored. Therefore, we report the synthesis and characterization of six Hg(II) salts built up from (Hg2Cl6)2- or (HgX4)2- anions (X = Cl, Br, I) and 2,2'-bipyridium (2,2'-Hbipy)+, 2,2'-bipyridine-1,1'-diium (2,2'-H2bipy)2+, or 1,10-phenantrolinium (1,10-Hphen)+ cations, using the same experimental conditions. All of them have been characterized by PXRD, EA, FTIR-ATR, and 1H NMR spectroscopies; single-crystal X-ray diffraction; and TG/DTA determinations. The study of their packing via Hirshfeld surface analysis and 3D deformation density mapping revealed the contributions of the intermolecular interactions to the structural arrangement, notably, the effect of the cation planarity on them. Successively, periodic DFT calculations showed that (i) the valence and conducting bands are mainly composed of the p orbitals of the halide and the organic cation, respectively, and (ii) the corresponding band gap depends mainly on the halide.
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Affiliation(s)
- Francisco Sánchez-Férez
- Departament
de Química, Universitat Autònoma
de Barcelona, Bellaterra, Barcelona 08193, Spain
| | - Xavier Solans-Monfort
- Departament
de Química, Universitat Autònoma
de Barcelona, Bellaterra, Barcelona 08193, Spain
| | - Teresa Calvet
- Departament
de Mineralogia, Petrologia i Geologia Aplicada, Universitat de Barcelona, Martí i Franquès s/n, Barcelona 08028, Spain
| | - Mercè Font-Bardia
- Unitat
de Difracció de Raig-X, Centres Científics i Tecnològics
de la Universitat de Barcelona (CCiTUB), Universitat de Barcelona, Solé i Sabarís, 1-3, Barcelona 08028, Spain
| | - Josefina Pons
- Departament
de Química, Universitat Autònoma
de Barcelona, Bellaterra, Barcelona 08193, Spain
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9
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Galle Kankanamge SR, Ma J, Mackin RT, Leonik FM, Taylor CM, Rubtsov IV, Kuroda DG. Proving and Probing the Presence of the Elusive C−H⋅⋅⋅O Hydrogen Bond in Liquid Solutions at Room Temperature. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
| | - Jianbo Ma
- Department of Chemistry Louisiana State University Baton Rouge LA 70803 USA
| | - Robert T. Mackin
- Department of Chemistry Tulane University New Orleans LA 70118 USA
| | - Fedra M. Leonik
- Department of Chemistry Louisiana State University Baton Rouge LA 70803 USA
| | - Carol M. Taylor
- Department of Chemistry Louisiana State University Baton Rouge LA 70803 USA
| | - Igor V. Rubtsov
- Department of Chemistry Tulane University New Orleans LA 70118 USA
| | - Daniel G. Kuroda
- Department of Chemistry Louisiana State University Baton Rouge LA 70803 USA
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10
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Galle Kankanamge SR, Ma J, Mackin RT, Leonik FM, Taylor CM, Rubtsov IV, Kuroda DG. Proving and Probing the Presence of the Elusive C-H⋅⋅⋅O Hydrogen Bond in Liquid Solutions at Room Temperature. Angew Chem Int Ed Engl 2020; 59:17012-17017. [PMID: 32559329 DOI: 10.1002/anie.202006210] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Indexed: 11/10/2022]
Abstract
Hydrogen bonds (H bonds) play a major role in defining the structure and properties of many substances, as well as phenomena and processes. Traditional H bonds are ubiquitous in nature, yet the demonstration of weak H bonds that occur between a highly polarized C-H group and an electron-rich oxygen atom, has proven elusive. Detailed here are linear and nonlinear IR spectroscopy experiments that reveal the presence of H bonds between the chloroform C-H group and an amide carbonyl oxygen atom in solution at room temperature. Evidence is provided for an amide solvation shell featuring two clearly distinguishable chloroform arrangements that undergo chemical exchange with a time scale of about 2 ps. Furthermore, the enthalpy of breaking the hydrogen bond is found to be 6-20 kJ mol-1 . Ab-initio computations support the findings of two distinct solvation shells formed by three chloroform molecules, where one thermally undergoes hydrogen-bond making and breaking.
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Affiliation(s)
| | - Jianbo Ma
- Department of Chemistry, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Robert T Mackin
- Department of Chemistry, Tulane University, New Orleans, LA, 70118, USA
| | - Fedra M Leonik
- Department of Chemistry, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Carol M Taylor
- Department of Chemistry, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Igor V Rubtsov
- Department of Chemistry, Tulane University, New Orleans, LA, 70118, USA
| | - Daniel G Kuroda
- Department of Chemistry, Louisiana State University, Baton Rouge, LA, 70803, USA
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11
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Kannan P, Karthick N, Mahendraprabu A, Kumbharkhane A, Joshi Y, Arivazhagan G. FTIR spectroscopy, quantum chemical calculations and time domain reflectometry studies on the behavior of methanol molecules in the environment of dibutyl ether. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.01.062] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Behera B, Das PK. Blue-Shifted Hydrogen Bonding in the Gas Phase CH/D3CN···HCCl3 Complexes. J Phys Chem A 2019; 123:1830-1839. [DOI: 10.1021/acs.jpca.8b12200] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- B. Behera
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Puspendu K. Das
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
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13
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Behera B, Das PK. Blue- and Red-Shifting Hydrogen Bonding: A Gas Phase FTIR and Ab Initio Study of RR'CO···DCCl 3 and RR'S···DCCl 3 Complexes. J Phys Chem A 2018; 122:4481-4489. [PMID: 29683668 DOI: 10.1021/acs.jpca.7b11962] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Blue-shifting H-bonded (C-D···O) complexes between CDCl3 and CH3HCO, (CH3)2CO, and C2H5(CH3)CO, and red-shifting H-bonded (C-D···S) complexes between CDCl3 with (CH3)2S and (C2H5)2S have been identified by Fourier transform infrared spectroscopy in the gas phase at room temperature. With increasing partial pressure of the components, a new band appears in the C-D stretching region of the vibrational spectra. The intensity of this band decreases with an increase in temperature at constant pressure, which provides the basis for identification of the H-bonded bands in the spectrum. The C-D stretching frequency of CDCl3 is blue-shifted by +7.1, +4, and +3.2 cm-1 upon complexation with CH3HCO, (CH3)2CO, and C2H5(CH3)CO, respectively, and red-shifted by -14 and -19.2 cm-1 upon complexation with (CH3)2S and (C2H5)2S, respectively. By using quantum chemical calculations at the MP2/6-311++G** level, we predict the geometry, electronic structural parameters, binding energy, and spectral shift of H-bonded complexes between CDCl3 and two series of compounds named RCOR' (H2CO, CH3HCO, (CH3)2CO, and C2H5(CH3)CO) and RSR' (H2S, CH3HS, (CH3)2S, and (C2H5)2S) series. The calculated and observed spectral shifts follow the same trends. With an increase in basicity of the H-bond acceptor, the C-D bond length increases, force constant decreases, and the frequency shifts to the red from the blue. The potential energy scans of the above complexes are done, which show that electrostatic attraction between electropositive D and electron-rich O/S causes bond elongation and red shift, and the electronic and nuclear repulsions lead to bond contraction and blue shifts. The dominance of the two opposing forces at the equilibrium geometry of the complex determines the nature of the shift, which changes both in magnitude and in direction with the basicity of the hydrogen-bond acceptor.
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Affiliation(s)
- B Behera
- Department of Inorganic and Physical Chemistry , Indian Institute of Science , Bangalore 560012 , India
| | - Puspendu K Das
- Department of Inorganic and Physical Chemistry , Indian Institute of Science , Bangalore 560012 , India
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14
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Samanta AK, Banerjee P, Bandyopadhyay B, Pandey P, Chakraborty T. Antagonistic Interplay Between an Intermolecular CH···O and an Intramolecular OH···O Hydrogen Bond in a 1:1 Complex Between 1,2-Cyclohexanedione and Chloroform: A Combined Matrix Isolation Infrared and Quantum Chemistry Study. J Phys Chem A 2017; 121:6012-6020. [PMID: 28737917 DOI: 10.1021/acs.jpca.7b05615] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Matrix isolation infrared spectra of a weak C-H···O hydrogen-bonded complex between the keto-enol form of 1,2-cyclohexanedione (HCHD) and chloroform have been measured. The spectra reveal that the intramolecular O-H···O H-bond of HCHD is weakened as a result of complex formation, manifesting in prominent blue shift (∼23 cm-1) of the νO-H band and red shifts (∼7 cm-1) of νC═O bands of the acceptor (HCHD). The νC-H band of donor CHCl3 undergoes a large red shift of ∼33 cm-1. Very similar spectral effects are also observed for formation of the complex in CCl4 solution at room temperature. Our analysis reveals that out of several possible iso-energetic conformational forms of the complex, the one involving antagonistic interplay between the two hydrogen bonds (intermolecular C-H···O and intramolecular O-H···O) is preferred. The combined experimental and calculated data presented here suggest that in condensed media, conformational preferences are guided by directional hyperconjugative charge transfer interactions at the C-H···O hydrogen bonding site of the complex.
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Affiliation(s)
- Amit Kumar Samanta
- Center for Free-Electron Laser Science (CFEL) , Deutsches Elektronen-Synchrotron DESY, 22607 Hamburg, Germany
| | - Pujarini Banerjee
- Department of Physical Chemistry, Indian Association for the Cultivation of Science , Kolkata, India
| | - Biman Bandyopadhyay
- Department of Chemistry, Malaviya National Institute of Technology Jaipur, J. L. N. Marg , Jaipur, India
| | | | - Tapas Chakraborty
- Department of Physical Chemistry, Indian Association for the Cultivation of Science , Kolkata, India
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15
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Molecular interaction forces in acetone + ethanol binary liquid solutions: FTIR and theoretical studies. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.10.055] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Arivazhagan G, Elangovan A, Shanmugam R, Vijayalakshmi R, Karthick N. Study of molecular interaction in the mixtures of benzene+methyl acrylate/butyl acrylate through dielectric and spectroscopic studies. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2015.10.062] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Elangovan A, Shanmugam R, Arivazhagan G, Mahendraprabu A, Karthick N. Intermolecular forces in acetonitrile + ethanol binary liquid mixtures. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2015.09.022] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Rutkowski KS, Melikova SM, Linok OV, Czarnik-Matusewicz B, Rospenk M. Infrared spectroscopy and ab initio study of hydrogen bonded Cl3CD·N(CH3)3 complex in the gas phase. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 136 Pt A:95-99. [PMID: 24263231 DOI: 10.1016/j.saa.2013.10.055] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2013] [Accepted: 10/09/2013] [Indexed: 06/02/2023]
Abstract
FTIR spectra of the gas phase Cl3CD+TMA mixture have been studied at room temperature in ∼800-4000 cm(-1) frequency domain. The formation of the H-bonded Cl3CD…TMA complex has been detected. Spectroscopic parameters of the band ascribed to the complex were evaluated. MP2 frozen core ab initio calculations have been carried out with the Pople-type 6-311++G(d,p) basis set. The equilibrium geometries and harmonic vibrational frequencies of the complex were obtained using CP-corrected gradient techniques. The ''freq=anharm'' option has been tested for Cl3CD monomer and Cl3CD…TMA complex to examine possible anharmonic effects on the vibrations localized on the proton donor. The effects of Darling-Dennison and Fermi resonances on the frequency of the stretching vibration of the CH proton donor were analyzed.
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Affiliation(s)
- K S Rutkowski
- Department of Physics, St. Petersburg State University, Ulianovskaja 3, 198504 St. Petersburg, Russia.
| | - S M Melikova
- Department of Physics, St. Petersburg State University, Ulianovskaja 3, 198504 St. Petersburg, Russia
| | - O V Linok
- Department of Physics, St. Petersburg State University, Ulianovskaja 3, 198504 St. Petersburg, Russia
| | - B Czarnik-Matusewicz
- Department of Chemistry, Wroclaw University, F. Joliot-Curie 14, 50-383 Wroclaw, Poland
| | - M Rospenk
- Department of Chemistry, Wroclaw University, F. Joliot-Curie 14, 50-383 Wroclaw, Poland
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19
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Herrebout W. Infrared and Raman Measurements of Halogen Bonding in Cryogenic Solutions. Top Curr Chem (Cham) 2014; 358:79-154. [DOI: 10.1007/128_2014_559] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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20
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Sutradhar D, Zeegers-Huyskens T, Chandra AK. Strong hyperconjugative interactions in isolated and water complexes of desflurane: a theoretical investigation. J Phys Chem A 2013; 117:8545-54. [PMID: 23547928 DOI: 10.1021/jp402023u] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Ab initio MP2/aug-cc-pvDZ and density functional B3LYP calculations with the 6-311++G(d,p) basis set are performed to investigate the conformation of desflurane (CHF2OCHFCF3), its acidity/basicity and its interaction with one water molecule. The calculations include the optimized geometries, the harmonic frequencies of relevant vibrational modes, the binding energies with water, and a detailed natural bond orbital (NBO) analysis Iincluding the NBO charges, the hybridization of the C atoms and the intra- and intermolecular hyperconjugations. The relative energies of the two most stable conformers are discussed as a function of the total hyperconjugative energies resulting from the interaction of lone pairs of the O and F atoms to the different antibonding orbitals of desflurane. The proton affinity is the same for both conformers but the acidity of the CH bond is larger for the less stable conformer. The binding energies of the complexes of two desflurane conformers with one water molecule range from -2.75 to -3.23 kcal mol(-1). Depending on the structure of the complexes, the CH bonds involved in the interaction are contracted or elongated. The σ*(CH) occupation predominates over the hybridization effect in determining the CH bond length. There is an unexpected charge transfer to the external OH bond of the water molecule. This effect is in good agreement with theoretical data on the complexes between fluorinated dimethyl ethers and water and seems to depend on the number of F atoms implanted on the ether molecule.
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Affiliation(s)
- Dipankar Sutradhar
- Department of Chemistry, North-Eastern Hill University , Shillong 793022, India
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Jantimapornkij P, Jundee P, Uttamapinant N, Pianwanit S, Karpfen A. AH⋯π hydrogen bonding to acetylene and benzene: The role of intramolecular coupling. COMPUT THEOR CHEM 2012. [DOI: 10.1016/j.comptc.2012.09.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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