0000000001302104

AUTHOR

Janne Jänis

showing 15 related works from this author

The inherent structural instability: concentration-dependent transformation of pyrogallarene to pyrogallarene lactones.

2011

Pyrogallarene shows concentration-dependent instability in dilute solutions resulting in elimination of two ketene molecules and formation of pyrogallarene lactones. This unexpected phenomenon, which is not observed with resorcinarenes, highlights the significance of the four hydroxyl groups at 2-position for the molecular characteristics of pyrogallarenes.

ChemistryMetals and AlloysKeteneGeneral ChemistryInstabilityCatalysisTransformation (music)Surfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsConcentration dependentchemistry.chemical_compoundComputational chemistryMaterials ChemistryCeramics and CompositesMoleculeOrganic chemistryChemical communications (Cambridge, England)
researchProduct

Carbon Budget and Molecular Structure of Natural Organic Matter in Bank Infiltrated Groundwater

2021

Groundwater : : journal of the Association of Ground-Water Scientists and Engineers, a division of the National Ground Water Association (2021). doi:10.1111/gwat.13087

liuennut orgaaninen hiilimassaspektrometria550Water table0208 environmental biotechnologychemistry.chemical_elementAquiferFresh Watertekopohjavesi02 engineering and technologyjärvetVadose zoneddc:550Organic matterComputers in Earth SciencesGroundwaterWater Science and TechnologyTotal organic carbonchemistry.chemical_classificationmanaged aquifer rechargegeographypohjavesivedenpuhdistusgeography.geographical_feature_categoryMolecular StructureGroundwater rechargedissolved organic matterpohjavesialueetCarbon020801 environmental engineeringlake-groundwater interactionmolecular compositionpintavesichemistryEnvironmental chemistryEnvironmental scienceorgaaninen ainesSeasonsCarbonGroundwaterWater Pollutants Chemical
researchProduct

Ferrocenyl-functionalized tetranuclear gold(I) and gold(I)-copper(I) complexes based on tridentate phosphanes

2013

Tetranuclear AuI–FeII dimetallic and AuI–CuI–FeII trimetallic complexes bearing ferrocenyl (Fc) groups have been assembled by using two triphosphane ligands, namely, (PPh2CH2)2PPh (dpmp) and (PPh2)3CH (tppm). The compositions and structural type of the clusters are dependent on the stereochemistry of the P donor ligands. The complexes [tppmAu3Cu(C2R)3]PF6 [R = Fc (1) and 4-C6H4-Fc (2)] adopt a trigonal pyramidal {Au3Cu} arrangement of the coordinating metal core, whereas for the compounds with the linear triphosphane [Au4(dpmp)2(C2R)2](PF6)2 [R = Fc (3) and 4-C6H4-Fc (4)], a planar rhomboidal {Au4} framework was found. Clusters 1–4 were characterized by NMR spectroscopy and ESI-MS measureme…

ChemistryStereochemistrychemistry.chemical_elementTrigonal pyramidal molecular geometryNuclear magnetic resonance spectroscopyElectrochemistryRedoxCopperInorganic ChemistryMetalElectron transferchemistry.chemical_compoundCrystallographyTriphosphanevisual_artvisual_art.visual_art_mediumta116European journal of inorganic chemistry
researchProduct

Solid-state luminescence of Au-Cu-alkynyl complexes induced by metallophilicity-driven aggregation.

2012

A new series of homoleptic alkynyl complexes, [{Au2Cu2(C2R)4}n] (R=C3H7O (1), C6H11O (2), C9H19O (3), C13H11O (4)), were obtained from Au(SC4H8)Cl, Cu(NCMe)4PF6, and the corresponding alkyne in the presence of a base (NEt3). Complexes 1-4 aggregate upon crystallization into polymeric chains through extensive metallophilic interactions. The cluster that contains fluorenolyl functionalities, C13H9O (5), crystallizes in its molecular form as a disolvate, [Au2Cu2(C2C13H9O)4]·2THF. The substitution of weakly bound THF molecules with pyridine molecules leads to the complex [Au2Cu2(C2C13H9O)4]·2py (6), thus giving two polymorphs in the solid state. Such structural diversity is established through …

chemistry.chemical_classificationOrganic ChemistryAlkyneGeneral ChemistryPhotochemistryCatalysislaw.inventionchemistry.chemical_compoundCrystallographychemistrylawPyridineCluster (physics)MoleculeHomolepticCrystallizationPhosphorescenceLuminescenceta116Chemistry (Weinheim an der Bergstrasse, Germany)
researchProduct

Chemistry inside molecular containers in the gas phase.

2013

Inner-phase chemical reactions of guest molecules encapsulated in a macromolecular cavity give fundamental insight into the relative stabilization of transition states by the surrounding walls of the host, thereby modelling the situation of substrates in enzymatic binding pockets. Although in solution several examples of inner-phase reactions are known, the use of cucurbiturils as macrocyclic hosts and bicyclic azoalkanes as guests has now enabled a systematic mass spectrometric investigation of inner-phase reactions in the gas phase, where typically the supply of thermal energy results in dissociation of the supramolecular host-guest assembly. The results reveal a sensitive interplay in wh…

Bicyclic molecule010405 organic chemistryChemistryGeneral Chemical EngineeringGeneral ChemistryActivation energy010402 general chemistry01 natural sciencesCombinatorial chemistry0104 chemical sciences3. Good healthGas phaseChemical physicsCucurbiturilta116Nature chemistry
researchProduct

CCDC 916957: Experimental Crystal Structure Determination

2013

Related Article: Igor O. Koshevoy, Yuh-Chia Chang, Antti J. Karttunen, Julia R. Shakirova, Janne Jänis, Matti Haukka, Tapani Pakkanen, Pi-Tai Chou|2013|Chem.-Eur.J.|19|5104|doi:10.1002/chem.201204611

tetrakis(mu~2~-eta^2^-(9-hydroxy-9H-fluoren-9-yl)ethynyl)-bis(tetrahydrofuran)-di-copper-di-gold tetrahydrofuran solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 916956: Experimental Crystal Structure Determination

2013

Related Article: Igor O. Koshevoy, Yuh-Chia Chang, Antti J. Karttunen, Julia R. Shakirova, Janne Jänis, Matti Haukka, Tapani Pakkanen, Pi-Tai Chou|2013|Chem.-Eur.J.|19|5104|doi:10.1002/chem.201204611

Space GroupCrystallographytetrakis(mu~2~-eta^2^-3-hydroxy-33-diphenylprop-1-yn-1-yl)-di-gold-di-copper acetone solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 916958: Experimental Crystal Structure Determination

2013

Related Article: Igor O. Koshevoy, Yuh-Chia Chang, Antti J. Karttunen, Julia R. Shakirova, Janne Jänis, Matti Haukka, Tapani Pakkanen, Pi-Tai Chou|2013|Chem.-Eur.J.|19|5104|doi:10.1002/chem.201204611

tetrakis(mu~2~-eta^2^-(9-hydroxy-9H-fluoren-9-yl)ethynyl)-dipyridine-di-copper-di-gold tetrahydrofuran solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 916959: Experimental Crystal Structure Determination

2013

Related Article: Igor O. Koshevoy, Yuh-Chia Chang, Antti J. Karttunen, Julia R. Shakirova, Janne Jänis, Matti Haukka, Tapani Pakkanen, Pi-Tai Chou|2013|Chem.-Eur.J.|19|5104|doi:10.1002/chem.201204611

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameterstetrakis(mu~2~-eta^2^-(9-hydroxy-9H-fluoren-9-yl)ethynyl)-dipyridine-di-copper-di-gold acetone solvateExperimental 3D Coordinates
researchProduct

CCDC 916955: Experimental Crystal Structure Determination

2013

Related Article: Igor O. Koshevoy, Yuh-Chia Chang, Antti J. Karttunen, Julia R. Shakirova, Janne Jänis, Matti Haukka, Tapani Pakkanen, Pi-Tai Chou|2013|Chem.-Eur.J.|19|5104|doi:10.1002/chem.201204611

Space GroupCrystallographycatena-[octakis(mu~2~-eta^2^-2-(di-isobutyl-hydroxymethyl)ethynyl)-tetra-copper-tetra-gold]Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 937899: Experimental Crystal Structure Determination

2013

Related Article: Thuy Minh Dau, Julia R. Shakirova, Antonio Doménech, Janne Jänis, Matti Haukka, Elena V. Grachova, Tapani A. Pakkanen, Sergey P. Tunik, Igor O. Koshevoy|2013|Eur.J.Inorg.Chem.||4976|doi:10.1002/ejic.201300615

bis(mu~3~-bis((Diphenylphosphino)methyl)phenylphosphine)-bis(4-(ferrocenyl)phenylethynyl)-tetra-gold bis(hexafluorophosphate) unknown solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 937897: Experimental Crystal Structure Determination

2013

Related Article: Thuy Minh Dau, Julia R. Shakirova, Antonio Doménech, Janne Jänis, Matti Haukka, Elena V. Grachova, Tapani A. Pakkanen, Sergey P. Tunik, Igor O. Koshevoy|2013|Eur.J.Inorg.Chem.||4976|doi:10.1002/ejic.201300615

Space GroupCrystallography(mu~3~-tris(Diphenylphosphino)methane)-tris(mu~2~-eta^2^-(ferrocenyl)ethynyl)-copper-tri-gold hexafluorophosphate dichloromethane solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 937898: Experimental Crystal Structure Determination

2013

Related Article: Thuy Minh Dau, Julia R. Shakirova, Antonio Doménech, Janne Jänis, Matti Haukka, Elena V. Grachova, Tapani A. Pakkanen, Sergey P. Tunik, Igor O. Koshevoy|2013|Eur.J.Inorg.Chem.||4976|doi:10.1002/ejic.201300615

Space GroupCrystallographyCrystal Systembis(mu~3~-bis((Diphenylphosphino)methyl)phenylphosphine)-bis((ferrocenyl)ethynyl)-tetra-gold bis(hexafluorophosphate) acetone unknown solvateCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 916953: Experimental Crystal Structure Determination

2013

Related Article: Igor O. Koshevoy, Yuh-Chia Chang, Antti J. Karttunen, Julia R. Shakirova, Janne Jänis, Matti Haukka, Tapani Pakkanen, Pi-Tai Chou|2013|Chem.-Eur.J.|19|5104|doi:10.1002/chem.201204611

catena-[tetrakis(mu~2~-eta^2^-2-Methylbut-3-yn-2-ol)-di-copper-di-gold monohydrate]Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 916954: Experimental Crystal Structure Determination

2013

Related Article: Igor O. Koshevoy, Yuh-Chia Chang, Antti J. Karttunen, Julia R. Shakirova, Janne Jänis, Matti Haukka, Tapani Pakkanen, Pi-Tai Chou|2013|Chem.-Eur.J.|19|5104|doi:10.1002/chem.201204611

Space GroupCrystallographyoctakis(mu~2~-eta^2^-1-Ethynylcyclohexanol)-tetra-copper-tetra-gold heptane solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct