1
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George MAR, Dopfer O. Infrared spectra of Si nH 4n-1+ ions ( n = 2-8): inorganic H-(Si-H) n-1 hydride wires of penta-coordinated Si in 3c-2e and charge-inverted hydrogen bonds. Phys Chem Chem Phys 2024; 26:6574-6581. [PMID: 38348767 DOI: 10.1039/d3cp05918a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
SinHm+ cations are important constituents in silane plasmas and astrochemical environments. Protonated disilane (Si2H7+) was shown to have a symmetric three-centre two-electron (3c-2e) Si-H-Si bond that can also be considered as a strong ionic charge-inverted hydrogen bond with polarity Siδ+-Hδ--Siδ+. Herein, we extend our previous work to larger SinH4n-1+ cations, formally resulting from adding SiH4 molecules to a SiH3+ core. Infrared spectra of size-selected SinH4n-1+ ions (n = 2-8) produced in a cold SiH4/H2/He plasma expansion are analysed in the SiH stretch range by complementary dispersion-corrected density functional theory calculations (B3LYP-D3/aug-cc-pVTZ) to reveal their bonding characteristics and cluster growth. The ions with n = 2-4 form a linear inorganic H-(Si-H)n hydride wire with adjacent Si-H-Si 3c-2e bridges, whose strength decreases with n, as evident from their characteristic and strongly IR active SiH stretch fundamentals in the range 1850-2100 cm-1. These 3c-2e bonds result from the lowest-energy valence orbitals, and their high stability arises from their delocalization along the whole hydride wire. For SinH4n-1+ with n ≥ 5, the added SiH4 ligands form weak van der Waals bonds to the Si4H19+ chain. Significantly, because the SinH4n-1+ hydride wires are based on penta-coordinated Si atoms leading to supersaturated hydrosilane ions, analogous wires cannot be formed by isovalent carbon.
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Affiliation(s)
| | - Otto Dopfer
- Institut für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstr. 36, Berlin 10623, Germany.
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2
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Tikhonov DS, Scutelnic V, Sharapa DI, Krotova AA, Dmitrieva AV, Obenchain DA, Schnell M. Structures of the (Imidazole)nH+ ... Ar (n=1,2,3) complexes determined from IR spectroscopy and quantum chemical calculations. Struct Chem 2022. [DOI: 10.1007/s11224-022-02053-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AbstractHere, we present new cryogenic infrared spectra of the (Imidazole)$$_{n}\mathrm{H}^{+}$$
n
H
+
(n=1,2,3) ions. The data was obtained using helium tagging infrared predissociation spectroscopy. The new results were compared with the data obtained by Gerardi et al. (Chem. Phys. Lett. 501:172–178, 2011) using the same technique but with argon as a tag. Comparison of the two experiments, assisted by theoretical calculations, allowed us to evaluate the preferable attachment positions of argon to the (Imidazole)$$_{n}\mathrm{H}^{+}$$
n
H
+
frame. Argon attaches to nitrogen-bonded hydrogen in the case of the (Imidazole)H$$^+$$
+
ion, while in (Imidazole)$$_{2}\mathrm{H}^{+}$$
2
H
+
and (Imidazole)$$_{3}\mathrm{H}^{+}$$
3
H
+
the preferred docking sites for the argon are in the center of the complex. This conclusion is supported by analyzing the spectral features attributed to the N–H stretching vibrations. Symmetry adapted perturbation theory (SAPT) analysis of the non-covalent forces between argon and the (Imidazole)$$_{n}\mathrm{H}^{+}$$
n
H
+
(n=1,2,3) frame revealed that this switch of docking preference with increasing complex size is caused by an interplay between induction and dispersion interactions.
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3
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Roy TK, Gerber RB. Dual Basis Approach for Ab Initio Anharmonic Calculations of Vibrational Spectroscopy: Application to Microsolvated Biomolecules. J Chem Theory Comput 2020; 16:7005-7016. [PMID: 32991804 DOI: 10.1021/acs.jctc.0c00725] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A dual electronic basis set approach is introduced for more efficient but accurate calculations of the anharmonic vibrational spectra in the framework of the vibrational self-consistent field (VSCF) theory. In this approach, an accurate basis set is used to compute the vibrational spectra at the harmonic level. The results are used to scale the potential surface from a more modest but much more efficient basis set. The scaling is such that at the harmonic level the new, scaled potential agrees with one of the accurate basis sets. The approach is tested in the application of the microsolvated, protected amino acid Ac-Phe-OMe, using the scaled anharmonic hybrid potential in the VSCF and VSCF-PT2 algorithms. The hybrid potential method yields results that are in good accord with the experiment and very close to those obtained in calculations with the high-level, very costly potential from the large basis set. At the same time, the hybrid potential calculations are considerably less expensive. The results of the hybrid calculations are much more accurate than those computed from the potential surface corresponding to the modest basis set. The results are very encouraging for using the hybrid potential method for inexpensive yet sufficiently accurate anharmonic calculations for the spectra of large biomolecules.
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Affiliation(s)
- Tapta Kanchan Roy
- Department of Chemistry and Chemical Sciences, Central University of Jammu, Rahya-Suchani (Bagla), Dist: Samba Jammu-181143, India
| | - R Benny Gerber
- Institute of Chemistry, The Hebrew University, Jerusalem 91904, Israel.,Department of Chemistry, University of California, Irvine, California 92697, United States
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4
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Mitra H, Roy TK. Comprehensive Benchmark Results for the Accuracy of Basis Sets for Anharmonic Molecular Vibrations. J Phys Chem A 2020; 124:9203-9221. [DOI: 10.1021/acs.jpca.0c06634] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hrishit Mitra
- Department of Chemistry and Chemical Sciences, Central University of Jammu, Rahya-Suchani (Bagla), Jammu, Jammu and Kashmir 181143, India
| | - Tapta Kanchan Roy
- Department of Chemistry and Chemical Sciences, Central University of Jammu, Rahya-Suchani (Bagla), Jammu, Jammu and Kashmir 181143, India
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5
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6
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Mączka M, Marinho Costa NL, Gągor A, Paraguassu W, Sieradzki A, Hanuza J. Structural, thermal, dielectric and phonon properties of perovskite-like imidazolium magnesium formate. Phys Chem Chem Phys 2017; 18:13993-4000. [PMID: 27150209 DOI: 10.1039/c6cp01353h] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the synthesis and characterisation of a magnesium formate framework templated by protonated imidazole. Single-crystal X-ray diffraction data showed that this compound crystallizes in the monoclinic structure in the P21/n space group with lattice parameters a = 12.1246(4) Å, b = 12.2087(5) Å, c = 12.4991(4) Å and β = 91.39(1)°. The antiparallel arrangement of the dipole moments associated with imidazolium cations suggests the antiferroelectric character of the room-temperature phase. The studied compound undergoes a structural phase transition at 451 K associated with a halving of the c lattice parameter and the disappearance of the antiferroelectric order. The monoclinic symmetry is preserved and the new metrics are a = 12.261(7) Å, b = 12.290(4) Å, c = 6.280(4) Å, and β = 90.62(5)°. Raman and IR data are consistent with the X-ray diffraction data. They also indicate that the disorder of imidazolium cations plays a significant role in the mechanism of the phase transition. Dielectric data show that the phase transition is associated with a relaxor nature of electric ordering. We also report high-pressure Raman scattering studies of this compound that revealed the presence of two pressure-induced phase transitions near 3 and 7 GPa. The first transition is most likely associated with a rearrangement of the imidazolium cations without any significant distortion of these cations and the magnesium formate framework, whereas the second transition leads to strong distortion of both the framework and imidazolium cations. High-pressure data also show that imidazolium magnesium formate does not show any signs of amorphization up to 11.4 GPa.
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Affiliation(s)
- Mirosław Mączka
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Box 1410, 50-950 Wrocław 2, Poland.
| | | | - Anna Gągor
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Box 1410, 50-950 Wrocław 2, Poland.
| | - Waldeci Paraguassu
- Faculdade de Física, Universidade Federal do Pará, 66075-110, Belém, PA, Brazil
| | - Adam Sieradzki
- Department of Experimental Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370, Wrocław, Poland
| | - Jerzy Hanuza
- Department of Bioorganic Chemistry, Faculty of Industry and Economics, Wrocław University of Economics, 118/120 Komandorska Str., 53-345 Wrocław, Poland
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7
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Grinvald II, Kalagaev IY, Petukhov AN, Spirin IA, Grushevskaya AI, Kapustin RV, Vorotyntsev IV. Water Complexes of Ionic Liquids: 1-Butyl-3-methyl Imidazolium Chloride and Tetrafluoroborate Systems in KBr Matrix. ChemistrySelect 2017. [DOI: 10.1002/slct.201700613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Iosif I. Grinvald
- Nizhny Novgorod State Technical University n.a. R.E. Alekseev; 603950 24 Minin str. Nizhny Novgorod Russian Federation
| | - Ivan Yu. Kalagaev
- Nizhny Novgorod State Technical University n.a. R.E. Alekseev; 603950 24 Minin str. Nizhny Novgorod Russian Federation
| | - Anton N. Petukhov
- Nizhny Novgorod State Technical University n.a. R.E. Alekseev; 603950 24 Minin str. Nizhny Novgorod Russian Federation
| | - Ivan A. Spirin
- Nizhny Novgorod State Technical University n.a. R.E. Alekseev; 603950 24 Minin str. Nizhny Novgorod Russian Federation
| | - Alina I. Grushevskaya
- Nizhny Novgorod State Technical University n.a. R.E. Alekseev; 603950 24 Minin str. Nizhny Novgorod Russian Federation
| | - Rostislav V. Kapustin
- Nizhny Novgorod State Technical University n.a. R.E. Alekseev; 603950 24 Minin str. Nizhny Novgorod Russian Federation
| | - Ilya V. Vorotyntsev
- Nizhny Novgorod State Technical University n.a. R.E. Alekseev; 603950 24 Minin str. Nizhny Novgorod Russian Federation
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8
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Schütz M, Bouchet A, Dopfer O. Infrared spectrum of the cold ortho-fluorinated protonated neurotransmitter 2-phenylethylamine: competition between NH+⋯π and NH+⋯F interactions. Phys Chem Chem Phys 2016; 18:26980-26989. [DOI: 10.1039/c6cp05915e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
IR spectra of cold rare-gas tagged ions reveal the switch of the preferred conformation of the highly flexible side chain of a prototypical protonated neurotransmitter induced by site-specific aromatic fluorination.
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Affiliation(s)
- Markus Schütz
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- D-10623 Berlin
- Germany
| | - Aude Bouchet
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- D-10623 Berlin
- Germany
| | - Otto Dopfer
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- D-10623 Berlin
- Germany
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9
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10
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De Petris A, Chiavarino B, Crestoni ME, Coletti C, Re N, Fornarini S. Exploring the Conformational Variability in the Heme b Propionic Acid Side Chains through the Effect of a Biological Probe: A Study of the Isolated Ions. J Phys Chem B 2015; 119:1919-29. [DOI: 10.1021/jp5113476] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alberto De Petris
- Dipartimento
di Chimica e Tecnologie del Farmaco, Università degli Studi di Roma La Sapienza, P.le A. Moro 5, I-00185, Roma, Italy
| | - Barbara Chiavarino
- Dipartimento
di Chimica e Tecnologie del Farmaco, Università degli Studi di Roma La Sapienza, P.le A. Moro 5, I-00185, Roma, Italy
| | - Maria Elisa Crestoni
- Dipartimento
di Chimica e Tecnologie del Farmaco, Università degli Studi di Roma La Sapienza, P.le A. Moro 5, I-00185, Roma, Italy
| | - Cecilia Coletti
- Dipartimento
di Farmacia, Università G. D’Annunzio, Via dei Vestini 31, I-66100 Chieti, Italy
| | - Nazzareno Re
- Dipartimento
di Farmacia, Università G. D’Annunzio, Via dei Vestini 31, I-66100 Chieti, Italy
| | - Simonetta Fornarini
- Dipartimento
di Chimica e Tecnologie del Farmaco, Università degli Studi di Roma La Sapienza, P.le A. Moro 5, I-00185, Roma, Italy
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11
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Féraud G, Berdakin M, Dedonder C, Jouvet C, Pino GA. Excited states of proton-bound DNA/RNA base homodimers: pyrimidines. J Phys Chem B 2014; 119:2219-28. [PMID: 25046334 DOI: 10.1021/jp505756a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We are presenting the electronic photofragment spectra of the protonated pyrimidine DNA base homodimers. Only the thymine dimer exhibits a well structured vibrational progression, while the protonated monomer shows broad vibrational bands. This shows that proton bonding can block some nonradiative processes present in the monomer.
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Affiliation(s)
- Géraldine Féraud
- Physique des Interactions Ioniques et Moléculaires (PIIM), UMR 7345, CNRS, Aix-Marseille Université , 13397 Marseille Cedex 20, France
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12
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Wächtler M, Bräutigam M, Popp J, Dietzek B. Mechanism of protonation induced changes in Raman spectra of a trisheteroleptic ruthenium complex revealed by DFT calculations. RSC Adv 2013. [DOI: 10.1039/c3ra00157a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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13
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Roy TK, Gerber RB. Vibrational self-consistent field calculations for spectroscopy of biological molecules: new algorithmic developments and applications. Phys Chem Chem Phys 2013; 15:9468-92. [DOI: 10.1039/c3cp50739d] [Citation(s) in RCA: 141] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Balakrishnan G, Jarzecki AA, Wu Q, Kozlowski PM, Wang D, Spiro TG. Mode recognition in UV resonance Raman spectra of imidazole: histidine monitoring in proteins. J Phys Chem B 2012; 116:9387-95. [PMID: 22779777 DOI: 10.1021/jp305083t] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The imidazole side-chains of histidine residues perform key roles in proteins, and spectroscopic markers are of great interest. The imidazole Raman spectrum is subject to resonance enhancement at UV wavelengths, and a number of UVRR markers of structure have been investigated. We report a systematic experimental and computational study of imidazole UVRR spectra, which elucidates the band pattern, and the effects of protonation and deprotonation, of H/D exchange, of metal complexation, and of addition of a methyl substituent, modeling histidine itself. A consistent assignment scheme is proposed, which permits tracking of the bands through these chemical variations. The intensities are dominated by normal mode contributions from stretching of the strongest ring bonds, C(2)N and C(4)C(5), consistent with enhancement via resonance with a dominant imidazole π-π* transition.
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15
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Xie HB, Jin L, Rudić S, Simons JP, Gerber RB. Computational Studies of Protonated β-d-Galactose and Its Hydrated Complex: Structures, Interactions, Proton Transfer Dynamics, and Spectroscopy. J Phys Chem B 2012; 116:4851-9. [DOI: 10.1021/jp3028325] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hong-bin Xie
- Key Laboratory of Industrial
Ecology and Environmental Engineering (MOE), School of Environmental
Science and Technology, Dalian University of Technology, Dalian 116024, China
- Department of Chemistry, University of California, Irvine, California 92697-2025,
United States
| | - Lin Jin
- Department of Chemistry, University of California, Irvine, California 92697-2025,
United States
| | - Svemir Rudić
- Department
of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford OX1 3QZ,
U.K
| | - John P. Simons
- Department
of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford OX1 3QZ,
U.K
| | - R. Benny Gerber
- Department of Chemistry, University of California, Irvine, California 92697-2025,
United States
- Institute of Chemistry
and The
Fritz Haber Research Center, The Hebrew University, Jerusalem 91904, Israel
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16
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Jin L, Simons JP, Gerber RB. Structures of the xylose–water complex: Energetics, transitions between conformers and spectroscopy. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.11.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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17
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Ahn AR, Lee SJ, Lee SK, Min AR, Kim YS, Jung HJ, Hong SM, Lee JH, Choi MY, Miller RE. Imidazole Trimer-Water Complexes in Superfluid Helium Nanodroplets: Water Stretching Modes. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.4.1407] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Brauer B, Pincu M, Buch V, Bar I, Simons JP, Gerber RB. Vibrational Spectra of α-Glucose, β-Glucose, and Sucrose: Anharmonic Calculations and Experiment. J Phys Chem A 2011; 115:5859-72. [DOI: 10.1021/jp110043k] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Brina Brauer
- Institute of Chemistry and The Fritz Haber Research Center, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Madeleine Pincu
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Victoria Buch
- Institute of Chemistry and The Fritz Haber Research Center, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Ilana Bar
- Department of Physics, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - John. P. Simons
- Chemistry Department, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford, OX1 3QZ, U.K
| | - R. Benny Gerber
- Institute of Chemistry and The Fritz Haber Research Center, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
- Department of Chemistry, University of California, Irvine, California 92697, United States
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19
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Gerardi HK, Gardenier GH, Viswanathan U, Auerbach SM, Johnson MA. Vibrational predissociation spectroscopy and theory of Ar-tagged, protonated Imidazole (Im) Im1–3H+·Ar clusters. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2010.10.062] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Lagutschenkov A, Langer J, Berden G, Oomens J, Dopfer O. Infrared spectra of the protonated neurotransmitter histamine: competition between imidazolium and ammonium isomers in the gas phase. Phys Chem Chem Phys 2011; 13:15644-56. [DOI: 10.1039/c1cp21681c] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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21
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Rasheed T, Ahmad S. Approximate solution of the mode-mode coupling integral: Application to cytosine and its deuterated derivative. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 77:446-456. [PMID: 20638327 DOI: 10.1016/j.saa.2010.06.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2009] [Revised: 05/30/2010] [Accepted: 06/11/2010] [Indexed: 05/29/2023]
Abstract
Ab initio Hartree-Fock (HF), density functional theory (DFT) and second-order Møller-Plesset (MP2) methods were used to perform harmonic and anharmonic calculations for the biomolecule cytosine and its deuterated derivative. The anharmonic vibrational spectra were computed using the vibrational self-consistent field (VSCF) and correlation-corrected vibrational self-consistent field (CC-VSCF) methods. Calculated anharmonic frequencies have been compared with the argon matrix spectra reported in literature. The results were analyzed with focus on the properties of anharmonic couplings between pair of modes. A simple and easy to use formula for calculation of mode-mode coupling magnitudes has been derived. The key element in present approach is the approximation that only interactions between pairs of normal modes have been taken into account, while interactions of triples or more are neglected. FTIR and Raman spectra of solid state cytosine have been recorded in the regions 400-4000 cm(-1) and 60-4000 cm(-1), respectively. Vibrational analysis and assignments are based on calculated potential energy distribution (PED) values.
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Affiliation(s)
- Tabish Rasheed
- Department of Physics, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
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22
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Chakraborty S, Patzer A, Dopfer O. IR spectra of protonated benzaldehyde clusters, C7H7O+–Ln (L=Ar,N2;n≤2): Ion-ligand binding motifs of the cis and trans oxonium isomers. J Chem Phys 2010; 133:044307. [DOI: 10.1063/1.3460458] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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23
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Crespo-Otero R, Bravo-Rodríguez K, Suardíaz R, Montero LA, García de la Vega JM. Theoretical Study of Imidazole···NO Complexes. J Phys Chem A 2009; 113:14595-605. [DOI: 10.1021/jp9042733] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rachel Crespo-Otero
- Laboratorio de Química Computacional y Teórica, Facultad de Química, Universidad de la Habana, 10400 Havana, Cuba, and Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Kenny Bravo-Rodríguez
- Laboratorio de Química Computacional y Teórica, Facultad de Química, Universidad de la Habana, 10400 Havana, Cuba, and Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Reynier Suardíaz
- Laboratorio de Química Computacional y Teórica, Facultad de Química, Universidad de la Habana, 10400 Havana, Cuba, and Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Luis A. Montero
- Laboratorio de Química Computacional y Teórica, Facultad de Química, Universidad de la Habana, 10400 Havana, Cuba, and Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - José M. García de la Vega
- Laboratorio de Química Computacional y Teórica, Facultad de Química, Universidad de la Habana, 10400 Havana, Cuba, and Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
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24
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Lassègues JC, Grondin J, Cavagnat D, Johansson P. New Interpretation of the CH Stretching Vibrations in Imidazolium-Based Ionic Liquids. J Phys Chem A 2009; 113:6419-21. [DOI: 10.1021/jp903160r] [Citation(s) in RCA: 142] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jean-Claude Lassègues
- ISM, UMR 5255, CNRS, Université Bordeaux I, 351 Cours de la Libération, 33405 Talence Cedex, France, and Department of Applied Physics, Chalmers University of Technology, SE-41296, Göteborg, Sweden
| | - Joseph Grondin
- ISM, UMR 5255, CNRS, Université Bordeaux I, 351 Cours de la Libération, 33405 Talence Cedex, France, and Department of Applied Physics, Chalmers University of Technology, SE-41296, Göteborg, Sweden
| | - Dominique Cavagnat
- ISM, UMR 5255, CNRS, Université Bordeaux I, 351 Cours de la Libération, 33405 Talence Cedex, France, and Department of Applied Physics, Chalmers University of Technology, SE-41296, Göteborg, Sweden
| | - Patrik Johansson
- ISM, UMR 5255, CNRS, Université Bordeaux I, 351 Cours de la Libération, 33405 Talence Cedex, France, and Department of Applied Physics, Chalmers University of Technology, SE-41296, Göteborg, Sweden
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Jagoda-Cwiklik B, Slavíček P, Nolting D, Winter B, Jungwirth P. Ionization of Aqueous Cations: Photoelectron Spectroscopy and ab Initio Calculations of Protonated Imidazole. J Phys Chem B 2008; 112:7355-8. [DOI: 10.1021/jp802454s] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Barbara Jagoda-Cwiklik
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic and Center for Complex Molecular Systems and Biomolecules, Flemingovo nám. 2, 16610 Prague 6, Czech Republic, Fritz Haber Institute for Molecular Dynamics, Hebrew University, Jerusalem, Israel 91904, Department of Physical Chemistry, Institute of Chemical Technology, Technická 5, Prague 6, Czech Republic, Max-Born-Institut für Nichtlineare Optik and Kurzzeitspektroskopie, Max-Born-Strasse 2A, D-12489 Berlin, Germany
| | - Petr Slavíček
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic and Center for Complex Molecular Systems and Biomolecules, Flemingovo nám. 2, 16610 Prague 6, Czech Republic, Fritz Haber Institute for Molecular Dynamics, Hebrew University, Jerusalem, Israel 91904, Department of Physical Chemistry, Institute of Chemical Technology, Technická 5, Prague 6, Czech Republic, Max-Born-Institut für Nichtlineare Optik and Kurzzeitspektroskopie, Max-Born-Strasse 2A, D-12489 Berlin, Germany
| | - Dirk Nolting
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic and Center for Complex Molecular Systems and Biomolecules, Flemingovo nám. 2, 16610 Prague 6, Czech Republic, Fritz Haber Institute for Molecular Dynamics, Hebrew University, Jerusalem, Israel 91904, Department of Physical Chemistry, Institute of Chemical Technology, Technická 5, Prague 6, Czech Republic, Max-Born-Institut für Nichtlineare Optik and Kurzzeitspektroskopie, Max-Born-Strasse 2A, D-12489 Berlin, Germany
| | - Bernd Winter
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic and Center for Complex Molecular Systems and Biomolecules, Flemingovo nám. 2, 16610 Prague 6, Czech Republic, Fritz Haber Institute for Molecular Dynamics, Hebrew University, Jerusalem, Israel 91904, Department of Physical Chemistry, Institute of Chemical Technology, Technická 5, Prague 6, Czech Republic, Max-Born-Institut für Nichtlineare Optik and Kurzzeitspektroskopie, Max-Born-Strasse 2A, D-12489 Berlin, Germany
| | - Pavel Jungwirth
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic and Center for Complex Molecular Systems and Biomolecules, Flemingovo nám. 2, 16610 Prague 6, Czech Republic, Fritz Haber Institute for Molecular Dynamics, Hebrew University, Jerusalem, Israel 91904, Department of Physical Chemistry, Institute of Chemical Technology, Technická 5, Prague 6, Czech Republic, Max-Born-Institut für Nichtlineare Optik and Kurzzeitspektroskopie, Max-Born-Strasse 2A, D-12489 Berlin, Germany
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Vibrational spectroscopy for glycine adsorbed on silicon clusters: Harmonic and anharmonic calculations for models of the Si(100)-2×1 surface. Chem Phys 2008. [DOI: 10.1016/j.chemphys.2007.09.062] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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