0000000001303264

AUTHOR

S. Kotila

showing 10 related works from this author

Anomalous temperature dependence of the IR spectrum of polyalanine

1997

Abstract We have studied the temperature dependence of the infrared spectra of acetanilide (ACN), tryptophan–(alanine) 15 , and tyrosine–(alanine) 15 . No sidebands of the amide-I vibration were observed in the polypeptides, but two anomalous sidebands of the NH stretch with a similar temperature dependence as that of the anomalous amide-I vibrational mode at 1650 cm −1 of crystalline ACN were detected. Fermi resonance combined with the appearance of a red-shifted sideband of NH stretch through coupling to lattice modes seems to explain this band structure. Observations are indicative of excitons that may occur in polypeptides as well as in single crystals of ACN.

AlaninePhysics::Biological PhysicsQuantitative Biology::BiomoleculesSidebandChemistryExcitonGeneral Physics and AstronomyInfrared spectroscopy02 engineering and technology021001 nanoscience & nanotechnology01 natural sciencesMolecular physics3. Good healthchemistry.chemical_compoundNuclear magnetic resonanceLattice (order)0103 physical sciencesFermi resonancePhysical and Theoretical Chemistry010306 general physics0210 nano-technologyElectronic band structureAcetanilideChemical Physics Letters
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CCDC 106636: Experimental Crystal Structure Determination

1997

Related Article: S.Breidenbach, S.Ohren, R.Herbst-Irmer, S.Kotila, M.Nieger, F.Vogtle|1996|Liebigs Ann.||2115|doi:10.1002/jlac.199619961225

Space GroupCrystallography792527-tetrakis(Ethoxycarbonyl)-2112029-tetrakis(4-tolylsulfonyl)-2112029-tetra-aza(3.3)(26)pyridino(12)benzeno(3.3)(45)benzeno(26)pyridino(3)phane chloroform benzene solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 103944: Experimental Crystal Structure Determination

1999

Related Article: J.Ebels, R.Pietschnig, S.Kotila, A.Dombrowski, E.Niecke, M.Nieger, H.M.Schiffner|1998|Eur.J.Inorg.Chem.||331|doi:10.1002/(SICI)1099-0682(199803)1998:3<331::AID-EJIC331>3.0.CO;2-4

Space GroupCrystallographyCrystal SystemMethylthio-bis(12345-pentamethyl-24-cyclopentadienyl)phosphaneCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 104892: Experimental Crystal Structure Determination

1999

Related Article: J.Ebels, R.Pietschnig, M.Nieger, E.Niecke, S.Kotila|1997|Heteroat.Chem.|8|521|doi:10.1002/(SICI)1098-1071(1997)8:63.0.CO;2-T

Space GroupCrystallographyTriethylammonium bis(pentamethyl-24-cyclopentadienyl)dithiophosphinateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 106634: Experimental Crystal Structure Determination

1997

Related Article: S.Breidenbach, S.Ohren, R.Herbst-Irmer, S.Kotila, M.Nieger, F.Vogtle|1996|Liebigs Ann.||2115|doi:10.1002/jlac.199619961225

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters792527-tetrakis(Ethoxycarbonyl)-2112029-tetrakis(4-tolylsulfonyl)-2112029-tetra-aza(3.3)(26)pyridino(13)benzeno(3.3)(46)benzeno(26)pyridino(3)phaneExperimental 3D Coordinates
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CCDC 106637: Experimental Crystal Structure Determination

1997

Related Article: S.Breidenbach, S.Ohren, R.Herbst-Irmer, S.Kotila, M.Nieger, F.Vogtle|1996|Liebigs Ann.||2115|doi:10.1002/jlac.199619961225

Space GroupCrystallography792527-tetrakis(Ethoxycarbonyl)-2112029-tetrakis(4-tolylsulfonyl)-2112029-tetra-aza(3.3)(26)pyridino(12)benzeno(3.3) (45)benzeno(26)pyridino(3)phane dimethylformamide solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 104891: Experimental Crystal Structure Determination

1999

Related Article: J.Ebels, R.Pietschnig, M.Nieger, E.Niecke, S.Kotila|1997|Heteroat.Chem.|8|521|doi:10.1002/(SICI)1098-1071(1997)8:63.0.CO;2-T

Space GroupCrystallographybis(bis(Pentamethyl-24-cyclopentadienyl)-dithiophosphinato)-cobalt(ii) toluene solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 103945: Experimental Crystal Structure Determination

1999

Related Article: J.Ebels, R.Pietschnig, S.Kotila, A.Dombrowski, E.Niecke, M.Nieger, H.M.Schiffner|1998|Eur.J.Inorg.Chem.||331|doi:10.1002/(SICI)1099-0682(199803)1998:3<331::AID-EJIC331>3.0.CO;2-4

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersDimethylamino-bis(12345-pentamethyl-24-cyclopentadienyl)phosphaneExperimental 3D Coordinates
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CCDC 104890: Experimental Crystal Structure Determination

1999

Related Article: J.Ebels, R.Pietschnig, M.Nieger, E.Niecke, S.Kotila|1997|Heteroat.Chem.|8|521|doi:10.1002/(SICI)1098-1071(1997)8:63.0.CO;2-T

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersbis(mu~2~-Dimethoxyethane)-bis((pentamethyl-24-cyclopentadienyl)dithiophosphinato-lithium)Experimental 3D Coordinates
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CCDC 106635: Experimental Crystal Structure Determination

1997

Related Article: S.Breidenbach, S.Ohren, R.Herbst-Irmer, S.Kotila, M.Nieger, F.Vogtle|1996|Liebigs Ann.||2115|doi:10.1002/jlac.199619961225

Space GroupCrystallography792527-tetrakis(Ethoxycarbonyl)-2112029-tetrathia(3.3)(26)pyridino(12)benzeno(3.3)(45)benzeno(26)pyridino(3)phaneCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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