Search results for "Cyclotetradecane"

showing 10 items of 34 documents

Two polymorphs Ni(II) complexes containing the dicyanamide ligand: syntheses, structures and magnetic properties of {[Ni(meso-CTH)(μ1,5-dca)]ClO4}n a…

2004

Abstract Two polymorphs Ni(II) complexes {[Ni(meso-CTH)(μ1,5-dca)]ClO4}n (1) and [Ni(meso-CTH)][Ni(meso-CTH)(dca)2](ClO4)2 (2) have been obtained in the same synthesis from dicyanamide (dca) and [Ni(meso-CTH)](ClO4)2 and have been characterized by X-ray crystallography and magnetic measurements. Complex 1 is a 1D cationic polymeric zig-zag chain with single end-to-end dca bridges connecting Ni(II) ions in trans positions, whereas in compound 2 coexist two different types of Ni(II) mononuclear units, cationic square-planar and neutral octahedral. Variable-temperature magnetic measurements reveal weak ferromagnetic interactions across the single end-to-end dca bridges in 1, while for 2 the ma…

Magnetic measurements010405 organic chemistryLigandCationic polymerization010402 general chemistry01 natural sciences0104 chemical sciencesIonInorganic Chemistrychemistry.chemical_compoundCrystallographychemistryFerromagnetismOctahedronMaterials ChemistryCyclotetradecanePhysical and Theoretical ChemistryDicyanamideInorganica Chimica Acta
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Novel Ni(II) Mixed Ligand Complex Modified Electrode: Catalytic Effect on Anodic Oxidation of Phenol

2004

Cyclic voltammetry, using graphite paste electrode (GPE) and chemically modified GPE with Ni(II) mixed ligand complex (MGPE), is described for sensing and detoxification of phenol. A novel mixed ligand complex of nickel with 1,4,8,11-tetraaza cyclotetradecane (cyclam) and thiocyanate in the molar ratio of 1 : 2 : 5 is synthesized and characterized by spectroscopic and electrochemical studies. The Ni(II)-cyclam-thiocyanate complex behaves as a fast electron-transfer mediator, as nickel ions exist in higher oxidation state of Ni(III) on applying a potential of 1.25 V (vs. Ag/AgCl), which catalyses the oxidation of the target species. The mixed ligand complex, when incorporated in the graphite…

ThiocyanateInorganic chemistrychemistry.chemical_elementElectrochemistryAnalytical Chemistrychemistry.chemical_compoundNickelchemistryOxidation stateCyclamElectrochemistryCyclotetradecaneCyclic voltammetryChemically modified electrodeElectroanalysis
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CCDC 1876238: Experimental Crystal Structure Determination

2019

Related Article: T. Grancha, J. Ferrando-Soria, D. Armentano, E. Pardo|2019|J.Coord.Chem.|72|1204|doi:10.1080/00958972.2019.1575371

Space GroupCrystallographyCrystal Systemcatena-[(mu-14811-tetraazacyclotetradecane)-bis(mu-(S)-N-(ethyl oxoacetate)alaline)-nickel(ii)-di-copper(ii) hexadecahydrate]Crystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 777674: Experimental Crystal Structure Determination

2011

Related Article: R.Sen, A.Bhattacharya, D.Mal, A.Bhattacharjee, P.Gutlich, A.K.Mukherjee, M.Solzi, C.Pernechele, S.Koner|2010|Polyhedron|29|2762|doi:10.1016/j.poly.2010.06.022

Space GroupCrystallographyCrystal SystemCrystal Structurecatena-(bis(mu~2~-Cyano)-tetracyano-(14811-tetra-azacyclotetradecane)-chromium-manganese monohydrate)Cell ParametersExperimental 3D Coordinates
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CCDC 230756: Experimental Crystal Structure Determination

2004

Related Article: E.Colacio, I.B.Maimoun, R.Kivekas, R.Sillanpaa, J.Suarez-Varela|2004|Inorg.Chim.Acta|357|1465|doi:10.1016/j.ica.2003.12.038

Space GroupCrystallographyCrystal SystemCrystal Structurebis(Dicyanamide)-(meso-557121216-hexamethyl-14811-tetra-azacyclotetradecane)-nickel(ii) (meso-557121216-hexamethyl-14811-tetra-azacyclotetradecane)-nickel(ii) diperchlorateCell ParametersExperimental 3D Coordinates
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CCDC 1986247: Experimental Crystal Structure Determination

2020

Related Article: Marko Rodewald, J. Mikko Rautiainen, Tobias Niksch, Helmar Görls, Raija Oilunkaniemi, Wolfgang Weigand, Risto S. Laitinen|2020|Chem.-Eur.J.|26|13806|doi:10.1002/chem.202002510

Space GroupCrystallographyCrystal System18-ditelluracyclotetradecaneCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 694344: Experimental Crystal Structure Determination

2010

Related Article: J.Suarez-Varela, J.M.Moreno, I.B.Maimoun, F.Lloret, J.Mrozinski, R.Kivekas, E.Colacio|2009|Cryst.Growth Des.|9|4102|doi:10.1021/cg9003438

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameterscatena-(bis((rac-557121214-hexamethyl-14811-tetraazacyclotetradecane)-(dicyanamide-N)-copper(ii)) hexakis(mu~2~-dicyanamide-NN'')-tetraaqua-bis(dicyanamide-N)-tri-manganese(ii) hexahydrate)Experimental 3D Coordinates
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CCDC 1520974: Experimental Crystal Structure Determination

2017

Related Article: Thais Grancha, Xiaoni Qu, Miguel Julve, Jesús Ferrando-Soria, Donatella Armentano, Emilio Pardo|2017|Inorg.Chem.|56|6551|doi:10.1021/acs.inorgchem.7b00681

Space GroupCrystallographyCrystal SystemCrystal Structurecatena-[bis(mu-([carboxylato(oxidanidyl)methylidene]amino)(phenyl)acetato)-(14811-tetraazacyclotetradecane)-aqua-di-copper(ii)-nickel(ii) propan-2-ol solvate pentahydrate]Cell ParametersExperimental 3D Coordinates
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CCDC 677859: Experimental Crystal Structure Determination

2009

Related Article: J.Martinez-Lillo, D.Armentano, N.Marino, L.Arizaga, R.Chiozzone, R.Gonzalez, C.Kremer, J.Cano, J.Faus|2008|Dalton Trans.||4585|doi:10.1039/b802112k

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters(14811-Tetrazacyclotetradecane)-nickel(ii) bis(pentachloro-(pyrazine)-rhenium(iv))Experimental 3D Coordinates
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CCDC 694345: Experimental Crystal Structure Determination

2010

Related Article: J.Suarez-Varela, J.M.Moreno, I.B.Maimoun, F.Lloret, J.Mrozinski, R.Kivekas, E.Colacio|2009|Cryst.Growth Des.|9|4102|doi:10.1021/cg9003438

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameterscatena-(tris(mu~2~-dicyanamide-NN'')-(rac-557121214-hexamethyl-14811-tetraazacyclotetradecane)-(dicyanamide-N')-copper(ii)-manganese(ii))Experimental 3D Coordinates
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