Search results for "4-O"

showing 10 items of 457 documents

CCDC 275029: Experimental Crystal Structure Determination

2006

Related Article: H.Mansikkamaki, M.Nissinen, K.Rissanen|2005|CrystEngComm|7|519|doi:10.1039/b508191b

bis(281420-Tetramethyl-46101216182224-octahydroxycalix(4)arene) tetramethylammonium clathrate chloride ethanol solvate trihydrateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 254963: Experimental Crystal Structure Determination

2005

Related Article: H.Mansikkamaki, C.A.Schalley, M.Nissinen, K.Rissanen|2005|New J.Chem.|29|116|doi:10.1039/b415401k

bis(46101216182224-Octahydroxy-281420-tetrapropylcalix(4)arene) sesquikis(NN'-dibenzyl-14-diazabicyclo(2.2.2)octane dibromide) methanol solvate hemihydrateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1434703: Experimental Crystal Structure Determination

2016

Related Article: Christian Köhler and Eva Rentschler|2016|Eur.J.Inorg.Chem.||1955|doi:10.1002/ejic.201501278

bis(mu-NN'-(134-oxadiazole-25-diylbis(methylene))bis(1-(pyridin-2-yl)methanamine))-di-iron(ii) tetrakis(tetrafluoroborate) acetonitrile solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 2064863: Experimental Crystal Structure Determination

2022

Related Article: Julian H��ffel, Theresa Sperger, Ignacio Funes-Ardoiz, Jas Ward, Kari Rissanen, Franziska Schoenebeck|2021|Science|374|1134|doi:10.1126/science.abj0999

bis(mu-iodo)-bis(2266-tetramethyl-1-phenylphosphinan-4-one)-di-palladium(i)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1490105: Experimental Crystal Structure Determination

2016

Related Article: B. Abu Thaher, D. Schollmeyer, S. Laufer|2016|IUCrData|1|x161081|doi:10.1107/S2414314616010816

catena-[(mu-4-oxo-3-(pyridin-4-yl)-1-(246-trichlorophenyl)-45-dihydro-1H-pyrazolo[34-d]pyrimidin-6-olato)-(mu-methanol)-(methanol)-sodium methanol diethyl ether solvate]Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1431715: Experimental Crystal Structure Determination

2017

Related Article: Tushar S. Basu Baul, Pelesakuo Kehie, Andrew Duthie, Nikhil Guchhait, Nune Raviprakash, Raveendra B. Mokhamatam, Sunil K. Manna, Nerina Armata, Michelangelo Scopelliti, f, Ruimin Wang, Ulli Englert|2017|J.Inorg.Biochem.|168|76|doi:10.1016/j.jinorgbio.2016.12.001

catena-[(mu-N-(4-oxopent-2-en-2-yl)tryptophanato)-triphenyl-tin(iv)]Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 910392: Experimental Crystal Structure Determination

2013

Related Article: Y.Inokuma,S.Yoshioka,J.Ariyoshi,T.Arai,Y.Hitora,K.Takada,S.Matsunaga,K.Rissanen,M.Fujita|2013|Nature (London)|495|461|doi:10.1038/nature11990

catena-[bis(mu~3~-246-tris(Pyridin-4-yl)-135-triazine)-hexakis(iodo)-tri-zinc(ii) 2-(34-dimethoxyphenyl)-35678-pentamethoxy-4H-chromen-4-one clathrate unknown solvate]Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 910391: Experimental Crystal Structure Determination

2013

Related Article: Y.Inokuma,S.Yoshioka,J.Ariyoshi,T.Arai,Y.Hitora,K.Takada,S.Matsunaga,K.Rissanen,M.Fujita|2013|Nature (London)|495|461|doi:10.1038/nature11990

catena-[bis(mu~3~-246-tris(Pyridin-4-yl)-135-triazine)-hexakis(iodo)-tri-zinc(ii) hemikis(2-(34-dimethoxyphenyl)-5678-tetramethoxy-4H-chromen-4-one) clathrate unknown solvate]Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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NMR Study of the (Z)-Phenylhydrazones of 5-Alkyl- and 5-Aryl-3-benzoyl-1,2,4-oxadiazoles: Support for the Interpretation of Kinetic Results on the Re…

2005

An analysis of the 1H, 13C, and 15N NMR substituent chemical shifts (SCSs) of the title compounds in CDCl3 solution has been carried out by using the SCSs of other classes of compounds (arenes, methyl esters or amides), Hammett substituent constants or kinetic data. The results obtained provide information concerning the ground-state electronic distribution of the compounds examined. The results relevant to the carbon and nitrogen atoms of the 1,2,4-oxadiazole ring can be considered of special interest, as the effects of the substit- Introduction For several years our research group has been involved in the use of NMR spectroscopic data (1H, 13C, 15N, and 17O) to obtain information about th…

chemistry.chemical_classificationArylChemical shiftOrganic ChemistrySubstituentNuclear magnetic resonance spectroscopyKinetic energyRing (chemistry)Medicinal chemistrychemistry.chemical_compoundchemistryOrganic chemistry124-oxadiazoles NMR investigation Hammett substituent constantsPhysical and Theoretical ChemistryAlkylEuropean Journal of Organic Chemistry
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On the behaviour of the (Z)-Phenylhydrazones of some 5-alkyl-3-benzoyl-1,2,4-oxadiazoles in solution and in the gas phase: kinetic and spectrometric …

2008

Abstract Rate constants, k A,R , for the rearrangement of the ( Z )-phenylhydrazones ( 1a – e ) of a series of 5-alkyl-3-benzoyl-1,2,4-oxadiazoles substituted at C(5) with linear alkyl chains of different length (from C 4 up to C 12 ) into the relevant 4-acylamino-2,5-diphenyl-1,2,3-triazoles ( 2a – e ) have been measured in dioxan/water in the base-catalyzed region (pS + 10.5–12.6). For each substrate log  k A,R are linearly related to pS + . The significant decrease of the slopes of these straight lines (from 0.96 down to 0.78) upon increasing the length of the linear alkyl chain at C(5) and that of the reactivity (down to 14–26%) upon increasing the substrate concentration suggest a decr…

chemistry.chemical_classificationDirect evidenceStereochemistryOrganic ChemistrySubstrate (chemistry)124-oxadiazoleKinetic energyBiochemistryCrystallographyReaction rate constantchemistryDrug DiscoveryProton NMRReactivity (chemistry)Self-assemblymononuclear rearrangementAlkyl
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