0000000001253193

AUTHOR

Alavi Karim

showing 23 related works from this author

Substituent Effects on the [N-I-N](+) Halogen Bond

2016

We have investigated the influence of electron density on the three-center [N-I-N](+) halogen bond. A series of [bis(pyri din e) io dine](+) and [1,2-bis ( (pyridin e-2-71 ethynyl)b e nze n e)io dine](+) BF4- complexes substituted with electron withdrawing and donating functionalities in the para-position of their pyridine nitrogen were synthesized and studied by spectroscopic and computational methods. The systematic change of electron density of the pyridine nitrogens upon alteration of the para-substituent (NO2, CF3, H, F, Me, OMe, NMe2) was confirmed by N-15 NMR and by computation of the natural atomic population and the pi electron population of the nitrogen atoms. Formation of the [N-…

inorganic chemicalsElectron densityPopulationInorganic chemistryhalogen bondsSubstituent010402 general chemistry01 natural sciencesBiochemistryCatalysisArticlechemistry.chemical_compoundColloid and Surface ChemistryPyridineeducationBenzeneta116education.field_of_studyHalogen bond010405 organic chemistryChemical shiftGeneral ChemistryKemi0104 chemical sciencesCrystallographychemistryChemical SciencesPolar effect
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Substituent Effects on the [N−I−N]+ Halogen Bond

2016

We have investigated the influence of electron density on the three-center [N–I–N]+ halogen bond. A series of [bis(pyridine)iodine]+ and [1,2-bis((pyridine-2-ylethynyl)benzene)iodine]+ BF4– complexes substituted with electron withdrawing and donating functionalities in the para-position of their pyridine nitrogen were synthesized and studied by spectroscopic and computational methods. The systematic change of electron density of the pyridine nitrogens upon alteration of the para-substituent (NO2, CF3, H, F, Me, OMe, NMe2) was confirmed by 15N NMR and by computation of the natural atomic population and the π electron population of the nitrogen atoms. Formation of the [N–I–N]+ halogen bond re…

inorganic chemicalskemialliset sidoksethalogen bondssupramolekulaarinen kemiamolekyylithalogeenisidos
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Carbon’s Three-Center-Four-Electron Tetrel Bond, Treated Experimentally

2018

Tetrel bonding is the noncovalent interaction of group IV elements with electron donors. It is a weak, directional interaction that resembles hydrogen and halogen bonding yet remains barely explored. Herein, we present an experimental investigation of the carbon-centered, three-center, four-electron tetrel bond, [N−C− N]+ , formed by capturing a carbenium ion with a bidentate Lewis base. NMRspectroscopic, titration-calorimetric, and reaction-kinetic evidence for the existence and structure of this species is reported. The studied interaction is by far the strongest tetrel bond reported so far and is discussed in comparison with the analogous halogen bond. The necessity of the involvement of…

Lewis basehalogeenitionithiilielektronittetrel bonding
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Counterion influence on the N–I–N halogen bond

2015

A detailed investigation of the influence of counterions on the [N–I–N]+ halogen bond in solution, in the solid state and in silico is presented. Translational diffusion coefficients indicate close attachment of counterions to the cationic, three-center halogen bond in dichloromethane solution. Isotopic perturbation of equilibrium NMR studies performed on isotopologue mixtures of regioselectively deuterated and nondeuterated analogues of the model system showed that the counterion is incapable of altering the symmetry of the [N–I–N]+ halogen bond. This symmetry remains even in the presence of an unfavorable geometric restraint. A high preference for the symmetric geometry was found also in …

chemistry.chemical_classificationHalogen bond010405 organic chemistryHydrogen bondcounterion; halogen bond; single crystal X-ray diffraction; DFT computationInorganic chemistryGeneral ChemistryNuclear magnetic resonance spectroscopy010402 general chemistry01 natural sciencesN–I–N halogen bond0104 chemical sciencesCrystallographyChemical bondchemistryTransition metalCounterionta116Single crystalBasis setChemical Science
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Counterion influence on the N–I–N halogen bond† †Electronic supplementary information (ESI) available: Experimental details of synthesis, compound ch…

2015

Counterions influence three-center halogen bonds differently than coordination bonds of transition metals.

ChemistryChemical Science
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CCDC 1045987: Experimental Crystal Structure Determination

2015

Related Article: Michele Bedin, Alavi Karim, Marcus Reitti, Anna-Carin C. Carlsson, Filip Topić, Mario Cetina, Fangfang Pan, Vaclav Havel, Fatima Al-Ameri, Vladimir Sindelar, Kari Rissanen, Jürgen Gräfenstein, Máté Erdélyi|2015|Chemical Science|6|3746|doi:10.1039/C5SC01053E

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersbis(pyridine)-silver(i) tetrafluoroborate 12-dichloroethane solvateExperimental 3D Coordinates
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CCDC 1045995: Experimental Crystal Structure Determination

2015

Related Article: Michele Bedin, Alavi Karim, Marcus Reitti, Anna-Carin C. Carlsson, Filip Topić, Mario Cetina, Fangfang Pan, Vaclav Havel, Fatima Al-Ameri, Vladimir Sindelar, Kari Rissanen, Jürgen Gräfenstein, Máté Erdélyi|2015|Chemical Science|6|3746|doi:10.1039/C5SC01053E

Space GroupCrystallographyCrystal System(nitrato)-(22'-(12-phenylenediethyne-21-diyl)bispyridine)-silver(i) dichloromethane solvateCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1045983: Experimental Crystal Structure Determination

2015

Related Article: Michele Bedin, Alavi Karim, Marcus Reitti, Anna-Carin C. Carlsson, Filip Topić, Mario Cetina, Fangfang Pan, Vaclav Havel, Fatima Al-Ameri, Vladimir Sindelar, Kari Rissanen, Jürgen Gräfenstein, Máté Erdélyi|2015|Chemical Science|6|3746|doi:10.1039/C5SC01053E

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersdi(pyridin-1-yl)iodonium hexafluoro-antimonyExperimental 3D Coordinates
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CCDC 1581474: Experimental Crystal Structure Determination

2018

Related Article: Alavi Karim, Nils Schulz, Hanna Andersson, Bijan Nekoueishahraki, Anna-Carin C. Carlsson, Daniel Sarabi, Arto Valkonen, Kari Rissanen, Jürgen Gräfenstein, Sandro Keller, Máté Erdélyi|2018|J.Am.Chem.Soc.|140|17571|doi:10.1021/jacs.8b09367

Space GroupCrystallographyCrystal System1-(triphenylmethyl)pyridin-1-ium tetrafluoroborateCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1045988: Experimental Crystal Structure Determination

2015

Related Article: Michele Bedin, Alavi Karim, Marcus Reitti, Anna-Carin C. Carlsson, Filip Topić, Mario Cetina, Fangfang Pan, Vaclav Havel, Fatima Al-Ameri, Vladimir Sindelar, Kari Rissanen, Jürgen Gräfenstein, Máté Erdélyi|2015|Chemical Science|6|3746|doi:10.1039/C5SC01053E

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersbis(pyridine)-silver(i) perchlorate 12-dichloroethane solvateExperimental 3D Coordinates
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CCDC 1452897: Experimental Crystal Structure Determination

2016

Related Article: Anna-Carin C. Carlsson, Krenare Mehmeti, Martin Uhrbom, Alavi Karim, Michele Bedin, Rakesh Puttreddy, Roland Kleinmaier, Alexei A. Neverov, Bijan Nekoueishahraki, Jürgen Gräfenstein, Kari Rissanen, and Máté Erdélyi|2016|J.Am.Chem.Soc.|138|9853|doi:10.1021/jacs.6b03842

bis(4-methoxy-1lambda5-pyridin-1-yl)iodonium tetrafluoroborate 12-dichloroethane solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1045990: Experimental Crystal Structure Determination

2015

Related Article: Michele Bedin, Alavi Karim, Marcus Reitti, Anna-Carin C. Carlsson, Filip Topić, Mario Cetina, Fangfang Pan, Vaclav Havel, Fatima Al-Ameri, Vladimir Sindelar, Kari Rissanen, Jürgen Gräfenstein, Máté Erdélyi|2015|Chemical Science|6|3746|doi:10.1039/C5SC01053E

Space GroupCrystallographyCrystal SystemCrystal Structurebis(pyridine)-silver(i) hexafluoro-antimony(v) 12-dichloroethane solvateCell ParametersExperimental 3D Coordinates
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CCDC 1045984: Experimental Crystal Structure Determination

2015

Related Article: Michele Bedin, Alavi Karim, Marcus Reitti, Anna-Carin C. Carlsson, Filip Topić, Mario Cetina, Fangfang Pan, Vaclav Havel, Fatima Al-Ameri, Vladimir Sindelar, Kari Rissanen, Jürgen Gräfenstein, Máté Erdélyi|2015|Chemical Science|6|3746|doi:10.1039/C5SC01053E

Space GroupCrystallographyCrystal Systemdi(pyridin-1-yl)iodonium trifluoromethanesulfonateCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1045981: Experimental Crystal Structure Determination

2015

Related Article: Michele Bedin, Alavi Karim, Marcus Reitti, Anna-Carin C. Carlsson, Filip Topić, Mario Cetina, Fangfang Pan, Vaclav Havel, Fatima Al-Ameri, Vladimir Sindelar, Kari Rissanen, Jürgen Gräfenstein, Máté Erdélyi|2015|Chemical Science|6|3746|doi:10.1039/C5SC01053E

bis(pyridine)iodonium perchlorateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1045982: Experimental Crystal Structure Determination

2015

Related Article: Michele Bedin, Alavi Karim, Marcus Reitti, Anna-Carin C. Carlsson, Filip Topić, Mario Cetina, Fangfang Pan, Vaclav Havel, Fatima Al-Ameri, Vladimir Sindelar, Kari Rissanen, Jürgen Gräfenstein, Máté Erdélyi|2015|Chemical Science|6|3746|doi:10.1039/C5SC01053E

di(pyridin-1-yl)iodonium hexafluorophosphateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1045992: Experimental Crystal Structure Determination

2015

Related Article: Michele Bedin, Alavi Karim, Marcus Reitti, Anna-Carin C. Carlsson, Filip Topić, Mario Cetina, Fangfang Pan, Vaclav Havel, Fatima Al-Ameri, Vladimir Sindelar, Kari Rissanen, Jürgen Gräfenstein, Máté Erdélyi|2015|Chemical Science|6|3746|doi:10.1039/C5SC01053E

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters(4-methylbenzenesulfonato)-bis(pyridine)-silver(i)Experimental 3D Coordinates
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CCDC 1045991: Experimental Crystal Structure Determination

2015

Related Article: Michele Bedin, Alavi Karim, Marcus Reitti, Anna-Carin C. Carlsson, Filip Topić, Mario Cetina, Fangfang Pan, Vaclav Havel, Fatima Al-Ameri, Vladimir Sindelar, Kari Rissanen, Jürgen Gräfenstein, Máté Erdélyi|2015|Chemical Science|6|3746|doi:10.1039/C5SC01053E

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersbis(pyridine)-(trifluoromethanesulfonato)-silver(i)Experimental 3D Coordinates
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CCDC 1452898: Experimental Crystal Structure Determination

2016

Related Article: Anna-Carin C. Carlsson, Krenare Mehmeti, Martin Uhrbom, Alavi Karim, Michele Bedin, Rakesh Puttreddy, Roland Kleinmaier, Alexei A. Neverov, Bijan Nekoueishahraki, Jürgen Gräfenstein, Kari Rissanen, and Máté Erdélyi|2016|J.Am.Chem.Soc.|138|9853|doi:10.1021/jacs.6b03842

4-(trifluoromethyl)pyridinium bis(4-(trifluoromethyl)-1lambda5-pyridin-1-yl)iodonium bis(tetrafluoroborate)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1045989: Experimental Crystal Structure Determination

2015

Related Article: Michele Bedin, Alavi Karim, Marcus Reitti, Anna-Carin C. Carlsson, Filip Topić, Mario Cetina, Fangfang Pan, Vaclav Havel, Fatima Al-Ameri, Vladimir Sindelar, Kari Rissanen, Jürgen Gräfenstein, Máté Erdélyi|2015|Chemical Science|6|3746|doi:10.1039/C5SC01053E

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersbis(pyridine)-silver(i) hexafluorophosphate 12-dichloroethane solvateExperimental 3D Coordinates
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CCDC 1045994: Experimental Crystal Structure Determination

2015

Related Article: Michele Bedin, Alavi Karim, Marcus Reitti, Anna-Carin C. Carlsson, Filip Topić, Mario Cetina, Fangfang Pan, Vaclav Havel, Fatima Al-Ameri, Vladimir Sindelar, Kari Rissanen, Jürgen Gräfenstein, Máté Erdélyi|2015|Chemical Science|6|3746|doi:10.1039/C5SC01053E

Space GroupCrystallographyCrystal Systembis(pyridine)-silver(i) nitrate monohydrateCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1045985: Experimental Crystal Structure Determination

2015

Related Article: Michele Bedin, Alavi Karim, Marcus Reitti, Anna-Carin C. Carlsson, Filip Topić, Mario Cetina, Fangfang Pan, Vaclav Havel, Fatima Al-Ameri, Vladimir Sindelar, Kari Rissanen, Jürgen Gräfenstein, Máté Erdélyi|2015|Chemical Science|6|3746|doi:10.1039/C5SC01053E

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersdi(pyridin-1-yl)iodonium 4-methylbenzenesulfonateExperimental 3D Coordinates
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CCDC 1045993: Experimental Crystal Structure Determination

2015

Related Article: Michele Bedin, Alavi Karim, Marcus Reitti, Anna-Carin C. Carlsson, Filip Topić, Mario Cetina, Fangfang Pan, Vaclav Havel, Fatima Al-Ameri, Vladimir Sindelar, Kari Rissanen, Jürgen Gräfenstein, Máté Erdélyi|2015|Chemical Science|6|3746|doi:10.1039/C5SC01053E

Space GroupCrystallographybis(nitrato)-tris(pyridine)-di-silverCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1045986: Experimental Crystal Structure Determination

2015

Related Article: Michele Bedin, Alavi Karim, Marcus Reitti, Anna-Carin C. Carlsson, Filip Topić, Mario Cetina, Fangfang Pan, Vaclav Havel, Fatima Al-Ameri, Vladimir Sindelar, Kari Rissanen, Jürgen Gräfenstein, Máté Erdélyi|2015|Chemical Science|6|3746|doi:10.1039/C5SC01053E

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersdi(pyridin-1-yl)iodonium nitrateExperimental 3D Coordinates
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