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Molecular structure and DFT investigations on new cobalt(II) chloride complex with superbase guanidine type ligand. J CHEM SCI 2015. [DOI: 10.1007/s12039-015-0976-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Chang HC, Jiang JC, Chang HC, Wang LR, Lee YT. Hydrogen-Bond Rearrangement and Intermolecular Proton Transfer in Protonated Methanol Clusters. Isr J Chem 2013. [DOI: 10.1002/ijch.199900030] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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4
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Decoursey TE, Cherny VV. An Electrophysiological Comparison of Voltage-Gated Proton Channels, Other Ion Channels, and Other Proton Channels. Isr J Chem 2013. [DOI: 10.1002/ijch.199900046] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kurylowicz M, Yu CH, Pomès R. Systematic study of anharmonic features in a principal component analysis of gramicidin A. Biophys J 2010; 98:386-95. [PMID: 20141751 PMCID: PMC2814209 DOI: 10.1016/j.bpj.2009.10.034] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2009] [Revised: 09/30/2009] [Accepted: 10/15/2009] [Indexed: 10/19/2022] Open
Abstract
We use principal component analysis (PCA) to detect functionally interesting collective motions in molecular-dynamics simulations of membrane-bound gramicidin A. We examine the statistical and structural properties of all PCA eigenvectors and eigenvalues for the backbone and side-chain atoms. All eigenvalue spectra show two distinct power-law scaling regimes, quantitatively separating large from small covariance motions. Time trajectories of the largest PCs converge to Gaussian distributions at long timescales, but groups of small-covariance PCs, which are usually ignored as noise, have subdiffusive distributions. These non-Gaussian distributions imply anharmonic motions on the free-energy surface. We characterize the anharmonic components of motion by analyzing the mean-square displacement for all PCs. The subdiffusive components reveal picosecond-scale oscillations in the mean-square displacement at frequencies consistent with infrared measurements. In this regime, the slowest backbone mode exhibits tilting of the peptide planes, which allows carbonyl oxygen atoms to provide surrogate solvation for water and cation transport in the channel lumen. Higher-frequency modes are also apparent, and we describe their vibrational spectra. Our findings expand the utility of PCA for quantifying the essential features of motion on the anharmonic free-energy surface made accessible by atomistic molecular-dynamics simulations.
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Affiliation(s)
| | | | - Régis Pomès
- Molecular Structure and Function Programme, Hospital for Sick Children and Department of Biochemistry, University of Toronto, Toronto, Canada
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Przybylski P, Gierczyk B, Schroeder G, Zundel G, Brzezinski B, Bartl F. Spectroscopic and PM5 semiempirical studies of the proton accepting properties of 1,8-bis(tetramethylguanidino)naphthalene. J Mol Struct 2007. [DOI: 10.1016/j.molstruc.2007.03.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Dimitrova Y, Tsenov JA. Theoretical study of the structures and vibrational spectra of the hydrogen-bonded systems of 4-cyanophenol with N-bases. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2007; 68:454-9. [PMID: 17336137 DOI: 10.1016/j.saa.2006.11.050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2006] [Accepted: 11/28/2006] [Indexed: 05/14/2023]
Abstract
The structural and vibrational features of the hydrogen bonded complexes of 1,5,7-triazabicyclo [4.4.0] dec-5-ene (TBD) with one and two 4-CNPhOH molecules have been studied extensively by ab initio SCF/6-31G(d,p) and BLYP calculations with various basis sets: 6-31G(d,p), 6-31+G(d,p) and 6-31++G(d,p). Full geometry optimization was made for the complexes studied. The nature of the hydrogen bonding and the influence of the hydrogen bonding on the structural and vibrational characteristics of the monomers have been investigated. The corrected values of the dissociation energy for the hydrogen-bonded complexes have been calculated in order to estimate their stability. The calculated values of the dissociation energy per phenol molecule indicate that the complex: TBD: 4-CNPhOH (1:1) is more stable than the complex: TBD: 4-CNPhOH (1:2). The changes in the structural and vibrational characteristics upon hydrogen bonding depend on the strength of the hydrogen bonds. In agreement with the experiment, the calculations show that the complexation between TBD and 4-CNPhOH leads to considerably changes in the vibrational characteristics of the stretching O-H vibration. The vibrational frequency of the O-H stretching vibration is shifted to lower wave numbers upon hydrogen bonding. The predicted frequency shifts Deltanu(O-H) for the complexes--TBD: 4-CNPhOH (1:1) and TBD: 4-CNPhOH (1:2) are in the range from -190 cm(-1) to -586 cm(-1). In the same time the IR intensity of the O-H stretching vibration increases dramatically in the hydrogen-bonded complexes.
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Affiliation(s)
- Yordanka Dimitrova
- Institute of Organic Chemistry, Bulgarian Academy of Sciences, Acad G Bonchev Str, Bl 9, 1113, Sofia, Bulgaria.
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Huczyński A, Binkowska I, Jarczewski A, Brzezinski B. Spectroscopic studies of the 1:1 complexes of 4-nitrophenyl[bis(ethylsulfonyl)]methane and phenyl[bis(ethylsulfonyl)]methane with 7-methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene and 1,5,7-triazabicyclo[4.4.0]dec-5-ene. J Mol Struct 2007. [DOI: 10.1016/j.molstruc.2007.01.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Rivera A, Ríos-Motta J, Hernández-Barragán A, Joseph-Nathan P. Solid state 1:1 adduct via O–H⋯N hydrogen bond of the aminal 1,3,6,8-tetraazatricyclo[4.4.1.13,8]dodecane (TATD) and hydroquinone. J Mol Struct 2007. [DOI: 10.1016/j.molstruc.2006.08.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Huczyñski A, Przybylski P, Brzezinski B, Bartl F. Spectroscopic and Semiempirical Studies of a Proton Channel Formed by the Methyl Ester of Monensin A. J Phys Chem B 2006; 110:15615-23. [PMID: 16884286 DOI: 10.1021/jp062160o] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Monensin A is an ionophore able to carry protons and cations through the cell membrane. Its methyl ester (MON1) and its hydrates have been studied in acetonitrile, and its deuterated analogue by Fourier transform infrared (FTIR) and (1)H and (13)C NMR spectroscopies as well as by vapor pressure osmotic and PM5 semiempirical methods. Interestingly, these hydrates show new and unexpected biophysical and biochemical properties. The formation of the hydrates starts with a transfer of a proton from the O(IV)-H hydroxyl group of MON1 to an oxygen atom of a water molecule, which is subsequently hydrated by other water molecules forming the (MON1 + 3H(2)O) species. This hydrate exhibits a ringlike structure in which the water molecules form an almost linear hydrogen-bonded chain. Within this chain, the excess proton fluctuates very fast inside the water cluster as indicated by a continuous absorption in the FTIR spectra. The formation of the (MON1 + 3H(2)O) species is accompanied by a self-assembly process, leading to the formation of a proton channel made up of eight (MON1 + 3H(2)O) units with a length of 60 A, in which the proton can fluctuate over the whole distance. Semiempirical calculations suggest that due to the hydrophobic surface the channel can be incorporated readily in a lipid bilayer. This hypothetical new channel is thought to be able to transport protons through the cell membrane. Thus it is a suitable model for studying proton-transfer processes, and in addition, it may open interesting new fields of application.
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Affiliation(s)
- Adam Huczyñski
- Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland
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Wojciechowski G, Ratajczak-Sitarz M, Katrusiak A, Brzezinski B. Transformations of the molecular complex of hydroiodide of 7-methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene and 5,5′-dibromo-2,2′-biphenol between crystal and solutions. J Mol Struct 2005. [DOI: 10.1016/j.molstruc.2004.12.063] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Łęska B, Przybylski P, Wyrwał J, Brzezinski B, Schroeder G, Rybachenko V. The reaction heats and PM5 semiempirical studies of complexes formed between silicon podand and Li+ cations. J Mol Struct 2005. [DOI: 10.1016/j.molstruc.2005.01.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Affiliation(s)
- Michael Meot-Ner
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, USA.
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Łęska B, Przybylski P, Wyrwał J, Brzezinski B, Schroeder G, Rybachenko V, Maia A. The reaction heats and PM5 semiempirical studies of complexes formed between silicon podand and monovalent cations. J Mol Struct 2005. [DOI: 10.1016/j.molstruc.2004.08.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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FTIR studies of the interactions of 1,3,5-triazabicyclo[4.4.0]dec-5-ene with 4-tert-butylphenol and 4-cyanophenol. J Mol Struct 2003. [DOI: 10.1016/j.molstruc.2003.07.035] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Abstract
Proton channels exist in a wide variety of membrane proteins where they transport protons rapidly and efficiently. Usually the proton pathway is formed mainly by water molecules present in the protein, but its function is regulated by titratable groups on critical amino acid residues in the pathway. All proton channels conduct protons by a hydrogen-bonded chain mechanism in which the proton hops from one water or titratable group to the next. Voltage-gated proton channels represent a specific subset of proton channels that have voltage- and time-dependent gating like other ion channels. However, they differ from most ion channels in their extraordinarily high selectivity, tiny conductance, strong temperature and deuterium isotope effects on conductance and gating kinetics, and insensitivity to block by steric occlusion. Gating of H(+) channels is regulated tightly by pH and voltage, ensuring that they open only when the electrochemical gradient is outward. Thus they function to extrude acid from cells. H(+) channels are expressed in many cells. During the respiratory burst in phagocytes, H(+) current compensates for electron extrusion by NADPH oxidase. Most evidence indicates that the H(+) channel is not part of the NADPH oxidase complex, but rather is a distinct and as yet unidentified molecule.
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Affiliation(s)
- Thomas E Decoursey
- Department of Molecular Biophysics and Physiology, Rush Presbyterian St. Luke's Medical Center, Chicago, Illinois 60612, USA.
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Pankiewicz R, Gurzkowska A, Brzezinski B, Zundel G, Bartl F. FT-IR Study of the nature of proton and cation motions in gramicidin S. J Mol Struct 2003. [DOI: 10.1016/s0022-2860(02)00588-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Wojciechowski G, Brzezinski B. Formation of hydrogen-bonded complexes of 3,3′,5,5′-tetrabromo-2,2′-biphenol with MTBD and triethylamine. J Mol Struct 2002. [DOI: 10.1016/s0022-2860(02)00273-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Ng S, Naumov P, Ibrahim A, Fun HK, Chantrapromma S, Wojciechowski G, Brzezinski B, Hanna J. X-Ray and spectroscopic re-investigation of the 1:1 complex formed between urotropine and resorcinol. J Mol Struct 2002. [DOI: 10.1016/s0022-2860(01)00945-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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21
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Schroeder G, Gierczyk B, Łęska B, Wojciechowski G, Pankiewicz R, Brzezinski B, Bartl F. FTIR and NMR studies of bis(oxaalkyl) sulphates(IV) and their complexes with proton and some metal cations. J Mol Struct 2002. [DOI: 10.1016/s0022-2860(01)00871-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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Formation of hydrogen-bonded chains through inter- and intra-molecular hydrogen bonds by a strong base of guanidine-like character and 5,5′-dibromo-2,2′-biphenols. J Mol Struct 2002. [DOI: 10.1016/s0022-2860(01)00818-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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23
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Bełtowska-Brzezinska M, Łuczak T, Gierczyk B, Eitner K, Brzezinski B, Pankiewicz R, Schroeder G. Studies of lithium and sodium complexation by silicon podand solvents. J Mol Struct 2002. [DOI: 10.1016/s0022-2860(01)00903-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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Wojciechowski G, Brzezinski B. Formation of hydrogen-bonded chains through inter- and intra-molecular hydrogen bonds by 5,5′-dinitro-2,2′-biphenol with a strong base of guanidine-like character and triethylamine. J Mol Struct 2002. [DOI: 10.1016/s0022-2860(01)00904-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Wojciechowski G, Bartl F, Brzezinski B. Polarizable hydrogen-bonded systems formed between 5,5′-dibromo-2,2′-biphenol and triethylamine. J Mol Struct 2002. [DOI: 10.1016/s0022-2860(01)00817-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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26
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Wojciechowski G, Katrusiak A, Brzezinski B. Unusual molecular-ionic complex of tetrabutylammonium 5,5′-dibromo-2,2′-biphenolate. J Mol Struct 2002. [DOI: 10.1016/s0022-2860(01)00665-2] [Citation(s) in RCA: 6] [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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27
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Kim J, Schmitt UW, Gruetzmacher JA, Voth GA, Scherer NE. The vibrational spectrum of the hydrated proton: Comparison of experiment, simulation, and normal mode analysis. J Chem Phys 2002. [DOI: 10.1063/1.1423327] [Citation(s) in RCA: 176] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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28
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Structural, spectroscopic and theoretical studies of the 2:2 complex of 5,5′-dibromo-2,2′-biphenol with 1,5,7-triazabicyclo[4.4.0]dec-5-ene. J Mol Struct 2001. [DOI: 10.1016/s0022-2860(01)00589-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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29
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Binkowska I, Jarczewski A, Katrusiak A, Wojciechowski G, Brzezinski B. Structural and spectroscopic studies of the 1:1 complex of 4-nitrophenyl[bis(ethylsulfonyl)]methane–1,5,7-triazabicyclo[4.4.0]dec-5-ene. J Mol Struct 2001. [DOI: 10.1016/s0022-2860(01)00581-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Pankiewicz R, Schroeder G, Gierczyk B, Wojciechowski G, Brzezinski B, Bartl F, Zundel G. 7Li-NMR and FTIR studies of lithium, potassium, rubidium, and cesium complexes with ionophore lasalocid in solution. Biopolymers 2001; 62:173-82. [PMID: 11343288 DOI: 10.1002/bip.1012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Lasalocid metal salts were combined with 1 : 1 lithium and 2:2 potassium, rubidium, and cesium to form complexes. The nature of the lasolocid salt complexes was studied in a solid and chloroform by FTIR spectroscopy in the middle and far IR regions. The process of the complexation of lithium was also studied by (7)Li-NMR. In chloroform a 1 : 1 complex of lasalocid and Li(+) ions was formed. Continuous absorption was observed in the far FTIR spectrum of this complex. It indicated large Li(+) polarizability, which was due to fast fluctuations of the Li(+) ions in the multiminima potentials, in the monomeric structure. In the lasalocid salt with the other monovalent cations (K(+), Rb(+), Cs(+)) 2:2 complexes were formed in which the cations showed cation polarizability, which strongly depended on the mass and the radius of the cations.
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Affiliation(s)
- R Pankiewicz
- Department of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland
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32
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Structural, theoretical and spectroscopic studies of the 1:2 complex of 1,5,7-triazabicyclo[4.4.0]dec-5-ene-4-nitrophenol. J Mol Struct 2001. [DOI: 10.1016/s0022-2860(00)00926-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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33
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Pankiewicz R, Wojciechowski G, Schroeder G, Brzezinski B, Bartl F, Zundel G. FT-IR study of the nature of K+, Rb+ and Cs+ cation motions in gramicidin A. J Mol Struct 2001. [DOI: 10.1016/s0022-2860(00)00840-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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34
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Wojciechowski G, Rozwadowski Z, Dziembowska T, Brzezinski B. 1 H NMR study of proton motion in hydrogen-bonded chain in Mannich base of 5,5′-dibromo-3-diethylaminomethyl-2,2′-biphenol. J Mol Struct 2001. [DOI: 10.1016/s0022-2860(00)00715-8] [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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35
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Brzezinski B, Wojciechowski G, Bartl F, Zundel G. Formation of hydrogen-bonded chains through inter- and intra-molecular hydrogen bonds by a strong base of guanidine-like character and 2,2′-biphenols. J Mol Struct 2000. [DOI: 10.1016/s0022-2860(00)00664-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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36
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Schroeder G, Gierczyk B, Rybachenko V, Brzezinski B. Studies of reaction heats and structures of complexes formed between macro compounds and SbCl5 in CCl4. J Mol Struct 2000. [DOI: 10.1016/s0022-2860(00)00464-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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37
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Wojciechowski G, Schroeder G, Zundel G, Brzezinski B. Hydrogen Bonds and Hydrogen-Bonded Chains in Complexes of 3-(Hydroxymethyl)-2,2‘-biphenol with N-Bases. FTIR and 1H NMR Studies. J Phys Chem A 2000. [DOI: 10.1021/jp0008804] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Grzegorz Wojciechowski
- Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland, and Institute of Physical Chemistry, University of Munich, Theresienstrasse 41, D-80333 Munich, Germany
| | - Grzegorz Schroeder
- Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland, and Institute of Physical Chemistry, University of Munich, Theresienstrasse 41, D-80333 Munich, Germany
| | - Georg Zundel
- Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland, and Institute of Physical Chemistry, University of Munich, Theresienstrasse 41, D-80333 Munich, Germany
| | - Bogumil Brzezinski
- Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland, and Institute of Physical Chemistry, University of Munich, Theresienstrasse 41, D-80333 Munich, Germany
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38
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Schroeder G, Gierczyk B, Brzezinski B, Różalski B, Bartl F, Zundel G, Sośnicki J, Grech E. 23 Na NMR and FT-IR studies of sodium complexes with the ionophore lasalocid in solution. J Mol Struct 2000. [DOI: 10.1016/s0022-2860(99)00139-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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39
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Gierczyk B, Schroeder G, Wojciechowski G, Łęska B, Rybachenko V, Brzezinski B. NMR study of the complexes of tris(oxaalkyl) borates with SbCl5. J Mol Struct 2000. [DOI: 10.1016/s0022-2860(99)00145-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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40
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Affiliation(s)
- B Roux
- Groupe de Recherche en Transport Membranaire, Département de Physique, Université de Montréal, Montréal, Québec H3C 3J7 Canada.
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41
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Zundel G. Li+, Na+, K+ and Be2+ bonds—IR continua and cation polarizabilities of these bonds. J Mol Struct 1999. [DOI: 10.1016/s0022-2860(99)00138-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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42
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Schroeder G, Łȩska B, Gierczyk B, Eitner K, Wojciechowski G, Różalski B, Bartl F, Brzezinski B. Studies of complexation of metal cations by tris(3,6-dioxaheptyl)amine in solution. J Mol Struct 1999. [DOI: 10.1016/s0022-2860(99)00011-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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