The guanidinium <i>t</i> -diaqua-bis(oxa ...
Type de document :
Article dans une revue scientifique: Article original
DOI :
URL permanente :
Titre :
The guanidinium <i>t</i> -diaqua-bis(oxalato)chromate(III) dihydrate complex: synthesis, crystal structure, EPR spectroscopy and magnetic properties
Auteur(s) :
Kamga, Idelle Nono [Auteur]
Nana, Augustin Nkwento [Auteur]
Ndosiri, Bridget Ndoye [Auteur]
Capet, Frederic [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Foulon, Michel [Auteur]
Nenwa, Justin [Auteur]
Nana, Augustin Nkwento [Auteur]
Ndosiri, Bridget Ndoye [Auteur]
Capet, Frederic [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Foulon, Michel [Auteur]
Nenwa, Justin [Auteur]
Titre de la revue :
Zeitschrift für Naturforschung B
Nom court de la revue :
Zeitschrift für Naturforschung B
Numéro :
76
Pagination :
211-216
Date de publication :
2021-04-27
ISSN :
1865-7117, 0932-0776
Discipline(s) HAL :
Chimie
Résumé en anglais : [en]
Abstract A new salt (CH 6 N 3 )[ t -Cr(C 2 O 4 ) ...
Lire la suite >Abstract A new salt (CH 6 N 3 )[ t -Cr(C 2 O 4 ) 2 (H 2 O) 2 ]·2H 2 O ( 1 ) (CH 6 N 3 + = guanidinium cation) has been synthesized and characterized by single-crystal X-ray diffraction, FT-IR and UV–Vis spectroscopies, elemental and thermogravimetric analyses. In the crystal structure of 1 , the chromate(III) ion lies on an inversion center in the form of an elongated octahedron. The coordination sphere consists of four oxygen atoms of two chelating oxalato ligands in the equatorial plane and two axial oxygen atoms of water ligands. The structural feature of focal interest in the structure of 1 is the formation of pillars of [Cr(C 2 O 4 ) 2 (H 2 O) 2 ] − complex anions and CH 6 N 3 + guanidinium cations, with the next-neighbor cations rotated by an angle of 60° relative to each other. O–H···O and N–H···O hydrogen bonds play an important role in the construction of the three-dimensional network. The electron paramagnetic resonance (EPR) and magnetic properties of 1 have also been investigated.Lire moins >
Lire la suite >Abstract A new salt (CH 6 N 3 )[ t -Cr(C 2 O 4 ) 2 (H 2 O) 2 ]·2H 2 O ( 1 ) (CH 6 N 3 + = guanidinium cation) has been synthesized and characterized by single-crystal X-ray diffraction, FT-IR and UV–Vis spectroscopies, elemental and thermogravimetric analyses. In the crystal structure of 1 , the chromate(III) ion lies on an inversion center in the form of an elongated octahedron. The coordination sphere consists of four oxygen atoms of two chelating oxalato ligands in the equatorial plane and two axial oxygen atoms of water ligands. The structural feature of focal interest in the structure of 1 is the formation of pillars of [Cr(C 2 O 4 ) 2 (H 2 O) 2 ] − complex anions and CH 6 N 3 + guanidinium cations, with the next-neighbor cations rotated by an angle of 60° relative to each other. O–H···O and N–H···O hydrogen bonds play an important role in the construction of the three-dimensional network. The electron paramagnetic resonance (EPR) and magnetic properties of 1 have also been investigated.Lire moins >
Langue :
Anglais
Audience :
Non spécifiée
Vulgarisation :
Non
Établissement(s) :
CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Collections :
Date de dépôt :
2022-03-24T09:03:05Z