1
|
High-pressure induced conformational and phase transformations of 1,4-dioxane probed by Raman spectroscopy. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127987] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
2
|
Dhamodharan P, Sathya K, Dhandapani M. Experimental and quantum chemical studies of a new organic proton transfer compound, 1 H -imidazole-3-ium-3-hydroxy-2,4,6-trinitrophenolate. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.10.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
3
|
Orth ES, Ferreira JG, Fonsaca JE, Blaskievicz SF, Domingues SH, Dasgupta A, Terrones M, Zarbin AJ. pKa determination of graphene-like materials: Validating chemical functionalization. J Colloid Interface Sci 2016; 467:239-244. [DOI: 10.1016/j.jcis.2016.01.013] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 01/06/2016] [Accepted: 01/08/2016] [Indexed: 12/11/2022]
|
4
|
Sharma BB, Verma AK, Thomas S, Murli C, Sharma SM. Hydrogen Bonds and Ionic Forms versus Polymerization of Imidazole at High Pressures. J Phys Chem B 2014; 119:372-8. [DOI: 10.1021/jp510688c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Bharat Bhooshan Sharma
- High Pressure & Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Ashok K. Verma
- High Pressure & Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Susy Thomas
- High Pressure & Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Chitra Murli
- High Pressure & Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Surinder M. Sharma
- High Pressure & Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| |
Collapse
|
5
|
Arjunan V, Remya P, Sathish U, Rani T, Mohan S. Spectroscopic and density functional theory studies of trans-3-(trans-4-imidazolyl)acrylic acid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 129:466-477. [PMID: 24755636 DOI: 10.1016/j.saa.2014.03.053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 03/08/2014] [Accepted: 03/20/2014] [Indexed: 06/03/2023]
Abstract
The structural parameters, thermodynamic properties and vibrational frequencies of the optimised geometry of trans-3-(trans-4-imidazolyl)acrylic acid have been determined from B3LYP methods with 6-311++G(**) and cc-pVTZ basis sets. The effects of substituents (acrylyl group) on the imidazole vibrational frequencies are analysed. The vibrational frequencies of the fundamental modes of trans-3-(trans-4-imidazolyl)acrylic acid have been precisely assigned and analysed and the theoretical results are compared with the experimental vibrations. (1)H and (13)C NMR isotropic chemical shifts are calculated and the assignments made are compared with the experimental values. The energies of important MO's of the compound are also determined from DFT method. The total electron density and electrostatic potential of the compound are determined by natural bond orbital analysis. Various reactivity and selectivity descriptors such as chemical hardness, chemical potential, softness, electrophilicity, nucleophilicity and the appropriate local quantities employing natural population analysis (NPA) are calculated.
Collapse
Affiliation(s)
- V Arjunan
- Department of Chemistry, Kanchi Mamunivar Centre for Post-Graduate Studies, Puducherry 605 008, India.
| | - P Remya
- Research and Development Centre, Bharathiar University, Coimbatore 641 046, India
| | - U Sathish
- Department of Chemistry, Kanchi Mamunivar Centre for Post-Graduate Studies, Puducherry 605 008, India
| | - T Rani
- Department of Chemistry, Rajiv Gandhi College of Engineering and Technology, Puducherry 605 402, India
| | - S Mohan
- School of Sciences and Humanities, Vel Tech University, Avadi, Chennai 600 032, India
| |
Collapse
|
6
|
Arjunan V, Raj A, Anitha R, Mohan S. A new look into the quantum chemical and spectroscopic investigations of 5-chloro-1-methyl-4-nitroimidazole. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 125:160-174. [PMID: 24548809 DOI: 10.1016/j.saa.2014.01.070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 12/18/2013] [Accepted: 01/10/2014] [Indexed: 06/03/2023]
Abstract
Optimised geometrical structural parameters, harmonic vibrational frequencies, natural bonding orbital analysis and frontier molecular orbitals are determined by B3LYP and B3PW91 methods. The exact geometry of 5-chloro-1-methyl-4-nitroimidazole is determined through conformational analysis. The experimentally observed infrared and Raman bands have been assigned and analysed. The (13)C and (1)H NMR chemical shifts of the compound are investigated. The total electron density and molecular electrostatic potentials are determined. The electrostatic potential (electron+nuclei) distribution, molecular shape, size and dipole moments of the molecule have been displayed. The energies of the frontier molecular orbitals and LUMO-HOMO energy gap are measured. The possible electronic transitions of the molecule are studied by TD-DFT method along with the UV-Visible spectrum. The structure-activity relationship of the compound is also investigated by conceptual DFT methods.
Collapse
Affiliation(s)
- V Arjunan
- Department of Chemistry, Kanchi Mamunivar Centre for Post-Graduate Studies, Puducherry 605 008, India.
| | - Arushma Raj
- Department of Chemistry, Kanchi Mamunivar Centre for Post-Graduate Studies, Puducherry 605 008, India
| | - R Anitha
- Department of Chemistry, Kanchi Mamunivar Centre for Post-Graduate Studies, Puducherry 605 008, India
| | - S Mohan
- School of Sciences and Humanities, Vel Tech University, Avadi, Chennai 600 062, India
| |
Collapse
|
7
|
Cui PY, Liu BP, Yan S. DFT investigation on the double hydrogen-bonded system: The oxidation and hydration effect. J STRUCT CHEM+ 2012. [DOI: 10.1134/s0022476612050204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
8
|
Bao G, Duan D, Tian F, Wang L, Liu B, Cui T. Structural, electronic, and optical properties of crystalline iodoform under high pressure: A first-principles study. J Chem Phys 2011; 134:034508. [DOI: 10.1063/1.3528728] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
9
|
|
10
|
Park H, Jung YM, Yang SH, Shin W, Kang JK, Kim HS, Lee HJ, Hong WH. Spectroscopic and Computational Insight into the Intermolecular Interactions between Zwitter-Type Ionic Liquids and Water Molecules. Chemphyschem 2010; 11:1711-7. [DOI: 10.1002/cphc.200900925] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
11
|
Choi MY, Miller RE. Imidazole dimer and its water complexes formed in superfluid helium nanodroplets: Infrared spectroscopic studies of free OH vibrational stretching modes. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.07.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
12
|
Liu D, Lei W, Wang K, Bao G, Li F, Hao J, Liu B, Cui T, Cui Q, Zou G. Compression and Probing C−H···I Hydrogen Bonds of Iodoform under High Pressure by X-ray Diffraction and Raman Scattering. J Phys Chem B 2009; 113:7430-4. [DOI: 10.1021/jp900467z] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dan Liu
- National Laboratory of Superhard Materials, Jilin University, Changchun 130012, People’s Republic of China
| | - Weiwei Lei
- National Laboratory of Superhard Materials, Jilin University, Changchun 130012, People’s Republic of China
| | - Kai Wang
- National Laboratory of Superhard Materials, Jilin University, Changchun 130012, People’s Republic of China
| | - Gang Bao
- National Laboratory of Superhard Materials, Jilin University, Changchun 130012, People’s Republic of China
| | - Fangfei Li
- National Laboratory of Superhard Materials, Jilin University, Changchun 130012, People’s Republic of China
| | - Jian Hao
- National Laboratory of Superhard Materials, Jilin University, Changchun 130012, People’s Republic of China
| | - Bingbing Liu
- National Laboratory of Superhard Materials, Jilin University, Changchun 130012, People’s Republic of China
| | - Tian Cui
- National Laboratory of Superhard Materials, Jilin University, Changchun 130012, People’s Republic of China
| | - Qiliang Cui
- National Laboratory of Superhard Materials, Jilin University, Changchun 130012, People’s Republic of China
| | - Guangtian Zou
- National Laboratory of Superhard Materials, Jilin University, Changchun 130012, People’s Republic of China
| |
Collapse
|
13
|
Fernandes AM, Coutinho JAP, Marrucho IM. Gas-phase dissociation of ionic liquid aggregates studied by electrospray ionisation mass spectrometry and energy-variable collision induced dissociation. JOURNAL OF MASS SPECTROMETRY : JMS 2009; 44:144-150. [PMID: 19065609 DOI: 10.1002/jms.1484] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Positive singly charged ionic liquid aggregates [(C(n)mim)(m+1)(BF(4))(m)](+) (mim = 3-methylimidazolium; n = 2, 4, 8 and 10) and [(C(4)mim)(m+1)(A)(m)](+) (A = Cl(-), BF(4) (-), PF(6) (-), CF(3)SO(3) (-) and (CF(3)SO(2))(2)N(-)) were investigated by electrospray ionisation mass spectrometry and energy-variable collision induced dissociation. The electrospray ionisation mass spectra (ESI-MS) showed the formation of an aggregate with extra stability for m = 4 for all the ionic liquids with the exception of [C(4)mim][CF(3)SO(3)]. ESI-MS-MS and breakdown curves of aggregate ions showed that their dissociation occurred by loss of neutral species ([C(n)mim][A])(a) with a >or= 1. Variable-energy collision induced dissociation of each aggregate from m = 1 to m = 8 for all the ionic liquids studied enabled the determination of E(cm, 1/2) values, whose variation with m showed that the monomers were always kinetically much more stable than the larger aggregates, independently of the nature of cation and anion. The centre-of-mass energy values correlate well with literature data on ionic volumes and interaction and hydrogen bond energies.
Collapse
Affiliation(s)
- Ana M Fernandes
- QOPNA, Departamento de Química, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
| | | | | |
Collapse
|
14
|
Mishra AK, Murli C, Sharma SM. High Pressure Raman Spectroscopic Study of Deuterated γ-Glycine. J Phys Chem B 2008; 112:15867-74. [DOI: 10.1021/jp806381e] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ajay K. Mishra
- High Pressure Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Chitra Murli
- High Pressure Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Surinder M. Sharma
- High Pressure Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| |
Collapse
|
15
|
Wang Y, Li H, Han S. A theoretical investigation of the interactions between water molecules and ionic liquids. J Phys Chem B 2007; 110:24646-51. [PMID: 17134227 DOI: 10.1021/jp064134w] [Citation(s) in RCA: 194] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Quantum chemical calculations have been used to investigate the interaction between water molecules and ionic liquids based on the imidazolium cation with the anions [Cl(-)], [Br(-)], [BF(4)(-)], and [PF(6)(-)]. The predicted geometries and interaction energies implied that the water molecules interact with the Cl(-), Br(-), and BF(4)(-0 anions to form X(-)...W (X = Cl or Br, W = H(2)O), 2X-...2W, BF(4)(-)...W, and W...BF(4)(-)...W complexes. The hydrophobic PF(6)(-) anion could not form a stable complex with the water molecules at the density functional theory (DFT) level. Further studies indicate that the cation could also form a strong interaction with the water molecules. The 1-ethyl-3-methylimidazolium cation (Emim(+)) has been used as a model cation to investigate the interaction between a water molecule and a cation. In addition, the interaction between the ion pairs and the water was studied by using 1-ethyl-3-methylimidazolium chloride (Emim x Cl) as a model ionic liquid. The strengths of the interactions in these categories follow the trend anion-W > cation-W > ion pair-W.
Collapse
Affiliation(s)
- Yong Wang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, People's Republic of China
| | | | | |
Collapse
|
16
|
Choi MY, Miller RE. Infrared Laser Spectroscopy of Imidazole Complexes in Helium Nanodroplets: Monomer, Dimer, and Binary Water Complexes. J Phys Chem A 2006; 110:9344-51. [PMID: 16869682 DOI: 10.1021/jp0624146] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Infrared laser spectroscopy has been used to characterize imidazole (IM), imidazole dimer (IMD), and imidazole-water (IMW) binary systems formed in helium nanodroplets. The experimental results are compared with ab initio calculations reported here. Vibrational transition moment angles provide conclusive assignments for the various complexes studied here, including IM, one isomer of IMD, and two isomers of the IMW binary complexes.
Collapse
Affiliation(s)
- Myong Yong Choi
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA.
| | | |
Collapse
|
17
|
Xu Z, Li H, Wang C, Pan H, Han S. The methyl C–H blueshift in N,N-dimethylformamide-water mixtures probed by two-dimensional Fourier-transform infrared spectroscopy. J Chem Phys 2006; 124:244502. [PMID: 16821984 DOI: 10.1063/1.2206177] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Two-dimensional correlation spectroscopy was used to study the composition-dependent spectral variations of the CH-stretching bands of N,N-dimethylformamide (DMF)-water mixtures with X(DMF) ranging from 0.98 to 0.60. By a detailed correlation analysis of the spectral changes of the CH- and OH-stretching bands, it is found that the intensities of the CH and OH bands change in different ways when the water content is increased. It is also found that two different regions of the water content can be distinguished, in which the intensity changes have different signatures. A tentative explanation for how these phenomena might be related to structural changes in the mixture is proposed. The structural change of DMF induced by the water hydrogen bonded on the carbonyl group is supposed to be the possible origin of the methyl C-H blueshift instead of the direct C-H...O interactions before the hydrophobic hydration takes place.
Collapse
Affiliation(s)
- Zheng Xu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, People's Republic of China
| | | | | | | | | |
Collapse
|
18
|
Chiou JYZ, Chen JN, Lei JS, Lin IJB. Ionic liquid crystals of imidazolium salts with a pendant hydroxyl group. ACTA ACUST UNITED AC 2006. [DOI: 10.1039/b600045b] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
19
|
Chang HC, Jiang JC, Lai WW, Lin JS, Chen GC, Tsai WC, Lin SH. High-Pressure Raman Studies on Aqueous Protonated Thiazole: Presence of Charge-Enhanced C−H···O Hydrogen Bonds. J Phys Chem B 2005; 109:23103-7. [PMID: 16854009 DOI: 10.1021/jp0536652] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Close interactions of the charge-enhanced C-H...O type have been analyzed both experimentally and computationally in the protonated thiazole-water system. The formation of a weak hydrogen bond was directly evidenced by a low-frequency shift of the hydrogen-bonded aromatic C-H stretch in the protonated thiazole moiety. For pure thiazole, the pressure dependence of the C-H bands yielded blue frequency shifts. The peak frequency of the aromatic C-H stretch band of protonated thiazole in a dilute D2O solution possesses an unusual nonmonotonic pressure dependence, which indicates enhanced C-H...O hydrogen-bond formation at high pressure. We performed density functional theory calculations to predict the frequency shift of the C-H stretching vibrations. The reorganization of the hydrogen-bonded network may be one of the factors to induce the blue frequency shift to the red frequency shift.
Collapse
Affiliation(s)
- Hai-Chou Chang
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan.
| | | | | | | | | | | | | |
Collapse
|
20
|
Yan S, Bu Y. Coupling properties of imidazole dimer radical cation assisted by embedded water molecule: Toward understanding of interaction character of hydrogen-bonded histidine residue side-chains. J Chem Phys 2005; 122:184324. [PMID: 15918721 DOI: 10.1063/1.1895671] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Geometry optimizations are performed at the DFTB3LYP6-311+G* level. Four intriguing coupling modes, totally eight stable structures are found in the potential energy surfaces of the water-assisted coupling of imidazole dimer radical cation. In these isomers, the water molecules are embedded between two imidazole moieties, and the oxygen atom is tridentate or quadridentate, respectively. The distinct redshifts of the vibrational frequencies of the O-H...N and N-H...O type H bonds indicate the strong interaction of two imidazole rings of respective isomer. Inspection of the highest occupied molecular orbital predicts the alterations of the geometry structures on oxidation and reduction. The low barrier of the fragment rotation demonstrates that the isomerization processes by experiencing the distinct transition states are easy to fulfill, especially for those with O-H...N and C-H...O H bonds. Both the energy difference of the 0 degrees-cis and 180 degrees-trans orientation and the barriers of the fragment rotation are lowered by the water assisting. The range of the zero point vibrational energy correction indicates that the influence on the complexes with N-H...O and O-H...N H bonds (0.13-0.17 kcal/mol) is more significant than those with O-H...N and C-H...O H bonds (+/-0.03 kcal/mol). The dissociation energies of these isomers indicate that the charges transfer easily through water in the dissociation process and then are distributed mainly over the imidazole ring connecting with water molecule. The isomer with proton transfer between imidazole fragments is the most stable one.
Collapse
Affiliation(s)
- Shihai Yan
- Institute of Theoretical Chemistry, Shandong University, Jinan, 250100, People's Republic of China
| | | |
Collapse
|
21
|
Yan S, Bu Y, Li P. Electronic effect on protonated hydrogen-bonded imidazole trimer and corresponding derivatives cationized by alkali metals (Li+, Na+, and K+). J Chem Phys 2005; 122:54311. [PMID: 15740326 DOI: 10.1063/1.1839855] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The electronic effects on the protonated hydrogen-bonded imidazole trimer (Im)(3)H(+) and the derivatives cationized by alkali metals (Li(+), Na(+), and K(+)) are investigated using B3LYP method in conjunction with the 6-311+G( *) basis set. The prominent characteristics of (Im)(3)H(+) on reduction are the backflow of the transferred proton to its original fragment and the remoteness of the H atom from the attached side bare N atom. The proton transfer occurs on both reduction and oxidation for the corresponding hydrogen-bonded imidazole trimer. For the derivatives cationized by Li(+), (Im)(3)Li(+), the backflow of the transferred proton occurs on reduction. The electron detachment from respective highest occupied molecular orbital of (Im)(3)Na(+) and (Im)(3)K(+) causes the proton transferring from the fragment attached by the alkali metal cation to the middle one. The order of the adiabatic ionization potentials of (Im)(3)M(+) is (Im)(3)H(+)>(Im)(3)Li(+)>(Im)(3)Na(+)>(Im)(3)K(+); the order of (Im)(3)M indicates that (Im)(3)H is the easicst complex to be ionized. The polarity of (Im)(3)M(+) (M denotes H, Li, Na, and K) increases on both oxidation and reduction. The (Im)(3)M(+) complexes dissociate into (Im)(3) and M(+) except (Im)(3)H(+), which dissociates preferably into (Im)(3) (+) and H atom, while the neutral complexes [(Im)(3)M] dissociate into (Im)(3) and M. The stabilization energy of (Im)(3)Li(2+), (Im)(3)Na(2+), and (Im)(3)K(2+) indicate that their energies are higher as compared to those of the monomers.
Collapse
Affiliation(s)
- Shihai Yan
- Institute of Theoretical Chemistry, Shandong University, Jinan 250100, People's Republic of China
| | | | | |
Collapse
|
22
|
Chang HC, Jiang JC, Su CC, Lu LC, Hsiao CJ, Chuang CW, Lin SH. Pressure-Enhanced C−H···O Interactions in Aqueous tert-Butyl Alcohol. J Phys Chem A 2004. [DOI: 10.1021/jp046964k] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Hai-Chou Chang
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan, Republic of China, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, Republic of China, Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 106, Taiwan, Republic of China, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan, Republic of China
| | - Jyh-Chiang Jiang
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan, Republic of China, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, Republic of China, Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 106, Taiwan, Republic of China, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan, Republic of China
| | - Chih-Chia Su
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan, Republic of China, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, Republic of China, Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 106, Taiwan, Republic of China, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan, Republic of China
| | - Li-Chuan Lu
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan, Republic of China, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, Republic of China, Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 106, Taiwan, Republic of China, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan, Republic of China
| | - Chia-Jung Hsiao
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan, Republic of China, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, Republic of China, Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 106, Taiwan, Republic of China, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan, Republic of China
| | - Ching-Wei Chuang
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan, Republic of China, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, Republic of China, Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 106, Taiwan, Republic of China, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan, Republic of China
| | - Sheng Hsien Lin
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan, Republic of China, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, Republic of China, Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 106, Taiwan, Republic of China, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan, Republic of China
| |
Collapse
|
23
|
Chang HC, Jiang JC, Chuang CW, Lin SH. Evidence for hydrogen bond-like C–H–O interactions in aqueous 1,4-dioxane probed by high pressure. Chem Phys Lett 2004. [DOI: 10.1016/j.cplett.2004.08.112] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
24
|
Affiliation(s)
- Shihai Yan
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, Institute of Theoretical Chemistry, Shandong University, Jinan, 250100, P. R. China, and Department of Chemistry, Qufu Normal University, Qufu, 273165, P. R. China
| | - Yuxiang Bu
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, Institute of Theoretical Chemistry, Shandong University, Jinan, 250100, P. R. China, and Department of Chemistry, Qufu Normal University, Qufu, 273165, P. R. China
| |
Collapse
|
25
|
Yan S, Bu Y, Cao Z, Li P. Coupling Character between Imidazole and Imidazole Cation: Implication for the Coupling Modes of Biomolecular Residues. J Phys Chem A 2004. [DOI: 10.1021/jp048549y] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shihai Yan
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, Institute of Theoretical Chemistry, Shandong University, Jinan, 250100, P. R. China, and Department of Chemistry, Qufu Normal University, Qufu, 273165, P. R. China
| | - Yuxiang Bu
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, Institute of Theoretical Chemistry, Shandong University, Jinan, 250100, P. R. China, and Department of Chemistry, Qufu Normal University, Qufu, 273165, P. R. China
| | - Zhaohua Cao
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, Institute of Theoretical Chemistry, Shandong University, Jinan, 250100, P. R. China, and Department of Chemistry, Qufu Normal University, Qufu, 273165, P. R. China
| | - Ping Li
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, Institute of Theoretical Chemistry, Shandong University, Jinan, 250100, P. R. China, and Department of Chemistry, Qufu Normal University, Qufu, 273165, P. R. China
| |
Collapse
|
26
|
Lee KM, Chang HC, Jiang JC, Lu LC, Hsiao CJ, Lee YT, Lin SH, Lin IJB. Probing C–H⋯X hydrogen bonds in amide-functionalized imidazolium salts under high pressure. J Chem Phys 2004; 120:8645-50. [PMID: 15267793 DOI: 10.1063/1.1697380] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We have probed under high pressure the C-H hydrogen bonds formed by N,N(')-disubstituted imidazolium ions having PF(6) (-) and Br(-) counterions. High-pressure infrared spectral profiles, x-ray crystallographic analysis, and ab initio calculations allow us to make a vibrational assignment of these compounds. The appearance of a signal for the free-NH unit (or weakly bonded N-H...F unit) in the infrared spectrum of the PF(6) (-) salt indicates that conventional N-H...O and N-H...N hydrogen bonds do not fully dominate the packing. It is likely that the charge-enhanced C(2)-H...F interactions, combined with other weak hydrogen bonds, disturb the formation of N-H hydrogen bonds in the PF(6) (-) salt. This finding is consistent with the pressure-dependent results, which reveal that the C(2)-H...F interaction is enhanced upon increasing the pressure. In contrast to the PF(6) (-) salt, the imidazolium C-H bonds of the Br(-) salt have low sensitivity to high pressure. This finding suggests that the hydrogen bonding patterns are determined by the relative hydrogen bond acceptor strengths of the Br(-) and PF(6) (-) ions.
Collapse
Affiliation(s)
- Kwang Ming Lee
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan
| | | | | | | | | | | | | | | |
Collapse
|
27
|
Udagawa T, Ishimoto T, Tokiwa H, Tachikawa M, Nagashima U. The geometrical isotope effect of C–H⋯O type hydrogen bonds revealed by multi-component molecular orbital calculation. Chem Phys Lett 2004. [DOI: 10.1016/j.cplett.2004.03.091] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|