Novel coordination compounds of alkaline earth metals with coumarilic acid. Synthesis and characterization

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dc.authoridSAHIN, ZARIFE SIBEL/0000-0003-2745-7871
dc.contributor.authorKaraer, Emrah
dc.contributor.authorKose, Dursun Ali
dc.contributor.authorSahin, Zarife Sibel
dc.contributor.authorSahin, Onur
dc.date.accessioned2025-03-23T19:39:23Z
dc.date.available2025-03-23T19:39:23Z
dc.date.issued2021
dc.departmentSinop Üniversitesi
dc.description.abstractIn this study, novel coordination compounds of coumarilic acid with 2A group alkaline earth metal cations [Mg2+ (1 ), Ca2+ (2 ), Sr2+ (3 ) and Ba2+ (4 )] were synthesized and structural characterized. The structural properties of the new molecules obtained were studied by melting point, elemental anal-ysis, infrared spectroscopy, single crystal x-ray diffraction (SC-XRD), powder x-ray diffraction (P-XRD) spectroscopy. In addition, the thermal stability of the compounds were examined by thermal analysis (TGA/DTA) curves in an inert nitrogen atmosphere. When the structural properties of the molecules were examined, it was seen that the structure numbered 1 {[Mg(H2O)(6)]center dot 2(C9H5O3)} differed from the others and it was a kind of aqua complex. The coumarilate anions anionically located outside the coor-dination sphere serve as the counter-ion of the molecule. It has been determined that the other structures 2 {mu-(H2O)(2)[Ca(C9H5O3)(H2O)(3)](2)center dot 2(C9H5O3)}, 3 {mu-(H2O)(3)[Sr(C9H5O3)(H2O)(2)](2)center dot 2(C9H5O3)} and 4 {mu-(H2O)(3)[Ba(C9H5O3)(H2O)(2)](2)center dot 2(C9H5O3)} are in polymeric form and the coordination number of metals are eight. According to the spectroscopic analysis, these three structures are thought to be in isostructure form. It has been determined that in the unit cell in the structure 3 whose single crystal structure has been resolved, aqua and coumarilate ligands of two metal cations are connected to each other in the bridge position and coordination is ensured with aqua and bidentate anionic coumarilate ligands located in the terminal position. At the end of thermal decomposition, it was determined that relevant metal oxide residues remained in all structures and this situation was defined by powder XRD. (C) 2021 Published by Elsevier B.V.
dc.description.sponsorshipSinop University [SuB-1901-18-01]; Hitit University in Turkey [FEF19004.18.001]
dc.description.sponsorshipThis study was financially supported by Sinop University (Project No. SuB-1901-18-01) and Hitit University in Turkey (Project No. FEF19004.18.001) . The authors acknowledge to Sci-entific and Technological Research Application and Research Cen-ter, Sinop University, Turkey, for the use of the Bruker D8 QUEST diffractometer.
dc.identifier.doi10.1016/j.molstruc.2021.130970
dc.identifier.issn0022-2860
dc.identifier.issn1872-8014
dc.identifier.scopus2-s2.0-85109738653
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.molstruc.2021.130970
dc.identifier.urihttps://hdl.handle.net/11486/6340
dc.identifier.volume1244
dc.identifier.wosWOS:000709337200002
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofJournal of Molecular Structure
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250323
dc.subjectCoumarilic acid
dc.subjectAlkaline earth metals
dc.subjectCoumarin-3-carboxylic acid
dc.subjectSingle crystal
dc.subjectThermal analysis
dc.titleNovel coordination compounds of alkaline earth metals with coumarilic acid. Synthesis and characterization
dc.typeArticle

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