0000000001303250

AUTHOR

Dmytro Bykov

showing 5 related works from this author

Iron (II) isothiocyanate complexes with substituted pyrazines: Experimental and theoretical views on their electronic structure

2015

Abstract Synthesis, structural, magnetic, Mossbauer and thermal studies of isothiocyanate iron (II) complexes with substituted pyrazines (iodo-, bromo- and amino-derivatives) are discussed here. Complexes with iodo- and bromo-derivatives were found to have the composition [Fe(Ipz)2(SCN)2(H2O)2]·2Ipz (1) and [Fe(Brpz)2(SCN)2(H2O)2]·2Brpz (2), whereas in the case of amino-functionalized pyrazine the formation of [Fe(NH2pz)4(SCN)2] (3) was observed. 3D organization of the molecular complexes is stabilized within different hydrogen, halogen and lone pair–π interactions. Spin state of iron (II) ions in 1–3 was determined as high spin by Mossbauer and magnetic measurements. DFT calculations for t…

complexesSpin statesPyrazineHydrogenspin stateMössbauer spectroscopyInorganic chemistrychemistry.chemical_elementElectronic structure3. Good healthInorganic Chemistrychemistry.chemical_compoundCrystallographyironchemistryIsothiocyanateMössbauer spectroscopyHalogenMaterials ChemistrypyrazinePhysical and Theoretical Chemistryta116Lone pairPolyhedron
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Indefinitely stable iron(IV) cage complexes formed in water by air oxidation

2017

In nature, iron, the fourth most abundant element of the Earth's crust, occurs in its stable forms either as the native metal or in its compounds in the +2 or +3 (low-valent) oxidation states. High-valent iron (+4, +5, +6) compounds are not formed spontaneously at ambient conditions, and the ones obtained synthetically appear to be unstable in polar organic solvents, especially aqueous solutions, and this is what limits their studies and use. Here we describe unprecedented iron(IV) hexahydrazide clathrochelate complexes that are assembled in alkaline aqueous media from iron(III) salts, oxalodihydrazide and formaldehyde in the course of a metal-templated reaction accompanied by air oxidation…

ClathrochelateScienceInorganic chemistryFormaldehydeSolid-stateGeneral Physics and Astronomy010402 general chemistryDFT01 natural sciencesArticleGeneral Biochemistry Genetics and Molecular BiologyInorganic Chemistrychemistry.chemical_compoundhigh-valent ironNative metalOorganisk kemiMultidisciplinaryAqueous solution010405 organic chemistryQGeneral ChemistryDecompositionCoordination chemistry3. Good health0104 chemical scienceschemistryCageEarth (classical element)Nature Communications
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CCDC 1400635: Experimental Crystal Structure Determination

2017

Related Article: Stefania Tomyn, Sergii I. Shylin, Dmytro Bykov, Vadim Ksenofontov, Elzbieta Gumienna-Kontecka, Volodymyr Bon, Igor O. Fritsky|2017|Nat.Commun.|8|14099|doi:10.1038/ncomms14099

Space GroupCrystallographybis(tetra-n-butylammonium) (1347810121316171922-dodeca-azatetracyclo[8.8.4.1317.1812]tetracosane-5614152021-hexonato)-iron(iv) chloroform solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1400636: Experimental Crystal Structure Determination

2017

Related Article: Stefania Tomyn, Sergii I. Shylin, Dmytro Bykov, Vadim Ksenofontov, Elzbieta Gumienna-Kontecka, Volodymyr Bon, Igor O. Fritsky|2017|Nat.Commun.|8|14099|doi:10.1038/ncomms14099

Space GroupCrystallographyCrystal Systembis(tetraphenylarsonium) (1347810121316171922-dodeca-azatetracyclo[8.8.4.1317.1812]tetracosane-5614152021-hexonato)-iron(iv) hydrateCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1458636: Experimental Crystal Structure Determination

2017

Related Article: Stefania Tomyn, Sergii I. Shylin, Dmytro Bykov, Vadim Ksenofontov, Elzbieta Gumienna-Kontecka, Volodymyr Bon, Igor O. Fritsky|2017|Nat.Commun.|8|14099|doi:10.1038/ncomms14099

Space GroupCrystallographycatena-((mu-1347810121316171922-dodeca-azatetracyclo[8.8.4.1317.1812]tetracosane-5614152021-hexone)-diaqua-calcium-iron isopropanol solvate tetrahydrate)Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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