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Bikas R, Valadbeigi Y, Otręba M, Lis T. Mechanistic studies on the in-situ generation of furoxan ring during the formation of Cu(II) coordination compound from dioxime ligand: Theoretical and experimental study. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119756] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Mukherjee G, Patra N, Barua P, Jayaram B. A fast empirical GAFF compatible partial atomic charge assignment scheme for modeling interactions of small molecules with biomolecular targets. J Comput Chem 2010; 32:893-907. [DOI: 10.1002/jcc.21671] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2009] [Revised: 07/17/2010] [Accepted: 08/12/2010] [Indexed: 11/07/2022]
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Fantucci P. The Role of the d Orbitals of the Phosphorus Atom in the Metal-Phosphine Coordination Bond. COMMENT INORG CHEM 2006. [DOI: 10.1080/02603599208048462] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- P. Fantucci
- a Department of Inorganic and Organometallic Chemistry , University of Milan, CNR Centre , Via Venezian 21, I 20133 , Milano , Italy
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Hybrid density functional theory investigation of a series of alloxan-based thiosemicarbazones and semicarbazones. OPEN CHEM 2006. [DOI: 10.2478/s11532-006-0033-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractRecently, the synthesis and the NMR characterization of a series of eight alloxan-based thiosemicarbazones and semicarbazones were reported. These compounds exhibit a strongly hydrogenbonded hydrazinic proton that is a part of a characteristic six-membered ring. This proton is highly deshielded and resonates far downfield in the proton NMR spectra. In this report, mPW1PW91/6-31+G(d,p) calculations have been used to investigate the structure and other molecular properties of this series of eight compounds. The relationship between the 1H and 13C NMR chemical shifts and various geometric parameters was investigated, and linear relationships for proton peaks that are involved in hydrogen-bond interactions were found.
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Varadwaj PR, Bangal PR. An ab initio (RHF) and DFT-B3LYP level spectroscopic studies of BrCCCN and the analysis of atomic polar tensors. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.theochem.2004.12.050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Farrugia LJ, Evans C. Metal–metal bonding in bridged ligand systems: experimental and theoretical charge densities in Co3(μ3-CX)(CO)9 (X = H, Cl). CR CHIM 2005. [DOI: 10.1016/j.crci.2004.11.040] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Andrei HS, Solcà N, Dopfer O. Interaction of Ionic Biomolecular Building Blocks with Nonpolar Solvents: Acidity of the Imidazole Cation (Im+) Probed by IR Spectra of Im+−Ln Complexes (L = Ar, N2; n ≤ 3). J Phys Chem A 2005; 109:3598-607. [PMID: 16839026 DOI: 10.1021/jp0441487] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The intermolecular interaction between the imidazole cation (Im+ = C3N2H4+) and nonpolar ligands is characterized in the ground electronic state by infrared photodissociation (IRPD) spectroscopy of size-selected Im+-Ln complexes (L = Ar, N2) and quantum chemical calculations performed at the UMP2/6-311G(2df,2pd) and UB3LYP/6-311G(2df,2pd) levels of theory. The complexes are created in an electron impact cluster ion source, which predominantly produces the most stable isomers of a given cluster ion. The analysis of the size-dependent frequency shifts of both the N-H and the C-H stretch vibrations and the photofragmentation branching ratios provides valuable information about the stepwise microsolvation of Im+ in a nonpolar hydrophobic environment, including the formation of structural isomers, the competition between various intermolecular binding motifs (H-bonding and pi-bonding) and their interaction energies, and the acidity of both the CH and NH protons. In line with the calculations, the IRPD spectra show that the most stable Im+-L dimers feature planar H-bound equilibrium structures with nearly linear H-bonds of L to the acidic NH group of Im+. Further solvation occurs at the aromatic ring of Im+ via the formation of intermolecular pi-bonds. Comparison with neutral Im-Ar demonstrates the drastic effect of ionization on the topology of the intermolecular potential, in particular in the preferred aromatic substrate-nonpolar recognition motif, which changes from pi-bonding to H-bonding. .
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Affiliation(s)
- Horia-Sorin Andrei
- Institut für Physikalische Chemie, Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
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Kelly CP, Cramer CJ, Truhlar DG. Accurate partial atomic charges for high-energy molecules using class IV charge models with the MIDI! basis set. Theor Chem Acc 2005. [DOI: 10.1007/s00214-004-0624-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Solheim H, Ruud K, Astrand PO. Atomic dipole moments calculated using analytical molecular second-moment gradients. J Chem Phys 2004; 120:10368-78. [PMID: 15268064 DOI: 10.1063/1.1738631] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We have implemented analytical second-moment gradients for Hartree-Fock and multiconfigurational self-consistent-field wave functions. The code is used to calculate atomic dipole moments based on the generalized atomic polar tensor (GAPT) formalism [Phys. Rev. Lett. 62, 1469 (1989)], and the proposal of Dinur and Hagler (DH) for the calculation of atomic multipoles [J. Chem. Phys. 91, 2949 (1989)]. Both approaches display smooth basis-set convergence toward a well-defined basis-set limit and give reasonable electron correlation effects on the calculated atomic properties. However, the atomic charges and atomic dipole moments obtained from the GAPT partitioning scheme are unable to provide even qualitatively meaningful molecular quadrupole moments for some molecules, and thus the atomic multipole moments calculated in this scheme cannot be considered well suited for analyzing the electron density in molecules and for calculating intermolecular interaction energies. In contrast, the DH approach gives atomic charges and dipole moments that by definition exactly reproduce the molecular quadrupole moments. The approach of DH is, however, restricted to planar molecules and thus suffers from not being applicable to molecules of arbitrary shape. Both the GAPT and DH approaches give rather poor results for octupole and hexadecapole moments, indicating that at least atomic quadrupole moments are required for an accurate representation of the molecular charge distribution in terms of atomic electric moments.
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Affiliation(s)
- Harald Solheim
- Department of Chemistry, University of Tromsø, N-9037 Tromsø, Norway
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Affiliation(s)
- P Geerlings
- Eenheid Algemene Chemie, Faculteit Wetenschappen, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium.
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David FH, Vokhmin V. Hydration and Entropy Model for Ionic and Covalent Monatomic Ions. J Phys Chem A 2001. [DOI: 10.1021/jp0104278] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- François H. David
- Institut de Physique Nucléaire, 91406 Orsay, France, and Institute of Physical Chemistry, RAS, 117915 Moscow, Russia
| | - Valery Vokhmin
- Institut de Physique Nucléaire, 91406 Orsay, France, and Institute of Physical Chemistry, RAS, 117915 Moscow, Russia
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Sivanesan D, Subramanian V, Unni Nair B. Quantification of reactive sites in DNA bases using condensed Fukui functions. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s0166-1280(01)00386-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Dopfer O, Roth D, Maier JP. Microsolvation of the water cation in neon: Infrared spectra and potential energy surface of the H2O+–Ne open-shell ionic complex. J Chem Phys 2001. [DOI: 10.1063/1.1359770] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Dopfer O. Microsolvation of the Water Cation in Argon: I. Ab Initio and Density Functional Calculations of H2O+−Arn (n = 0−4). J Phys Chem A 2000. [DOI: 10.1021/jp002476a] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Otto Dopfer
- Institut für Physikalische Chemie, Universität Basel, Klingelbergstrasse 80, CH-4056 Basel, Switzerland
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de Oliveira AE, Haiduke RLA, Bruns RE. Atomic Mean Dipole Moment Derivatives and GAPT Charges. J Phys Chem A 2000. [DOI: 10.1021/jp994405l] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anselmo E. de Oliveira
- Instituto de Química, Universidade Estadual de Campinas, CP 6154, 13083-970 Campinas, SP, Brazil
| | - Roberto L. A. Haiduke
- Instituto de Química, Universidade Estadual de Campinas, CP 6154, 13083-970 Campinas, SP, Brazil
| | - Roy E. Bruns
- Instituto de Química, Universidade Estadual de Campinas, CP 6154, 13083-970 Campinas, SP, Brazil
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Olkhov RV, Nizkorodov SA, Dopfer O. Intermolecular interaction in the CH3+–He ionic complex revealed by ab initio calculations and infrared photodissociation spectroscopy. J Chem Phys 1999. [DOI: 10.1063/1.478917] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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Dopfer O, Olkhov RV, Maier JP. Microsolvation of HN2+ in Argon: Infrared Spectra and ab Initio Calculations of Arn−HN2+ (n = 1−13). J Phys Chem A 1999. [DOI: 10.1021/jp9847585] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Otto Dopfer
- Institut für Physikalische Chemie, Universität Basel, Klingelbergstrasse 80, CH-4056 Basel, Switzerland
| | - Rouslan V. Olkhov
- Institut für Physikalische Chemie, Universität Basel, Klingelbergstrasse 80, CH-4056 Basel, Switzerland
| | - John P. Maier
- Institut für Physikalische Chemie, Universität Basel, Klingelbergstrasse 80, CH-4056 Basel, Switzerland
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Tai S, Illinger KH, Papasavva S. Infrared Intensities, Atomic Charges, and Dipole Moments in the Fluoroethane Series Using Atomic Polar Tensor Analysis. J Phys Chem A 1997. [DOI: 10.1021/jp971927x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S. Tai
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155
| | - K. H. Illinger
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155
| | - S. Papasavva
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155
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Affiliation(s)
- Peter M. W. Gill
- Department of Chemistry, Massey University, Palmerston North, New Zealand
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H2 interaction with S atoms of a MoS2 modelled catalytic site: electronic density analysis for SH formation. ACTA ACUST UNITED AC 1996. [DOI: 10.1016/1381-1169(96)00036-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Molecular electrostatic potentials and fields: hydrogen bonding, recognition, reactivity and modelling. ACTA ACUST UNITED AC 1996. [DOI: 10.1016/s1380-7323(96)80046-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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28
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Bond functions and the topological properties of the bonds. Struct Chem 1995. [DOI: 10.1007/bf02293127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Pierloot K, Van Praet E, Vanquickenborne LG. The electronic structure of Cr2+,4+ in fluoride host materials. J Chem Phys 1995. [DOI: 10.1063/1.469175] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Fantucci P, Polezzo S, Sironi M, Bencini A. The nature of the platinum–phosphine bond. An ab initio Hartree–Fock and density functional study. ACTA ACUST UNITED AC 1995. [DOI: 10.1039/dt9950004121] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Sierraalta A. Electronic density topology of metal—metal quadruple bond in some Mo complexes. Chem Phys Lett 1994. [DOI: 10.1016/0009-2614(94)00881-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sierraalta A, Ruette F. A comparative study of effective core potential and full-electron calculations in Mo compounds. I. An analysis of topological properties of bond charge distribution. J Comput Chem 1994. [DOI: 10.1002/jcc.540150306] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Cioslowski J, Surján PR. An observable-based interpretation of electronic wavefunctions: application to “hypervalent” molecules. ACTA ACUST UNITED AC 1992. [DOI: 10.1016/0166-1280(92)85003-4] [Citation(s) in RCA: 104] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Cioslowski J, Fleischmann ED. Endohedral complexes: Atoms and ions inside the C60 cage. J Chem Phys 1991. [DOI: 10.1063/1.459744] [Citation(s) in RCA: 255] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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