Titre :

The guanidinium t-diaqua-bis(oxalato)chromate(III) dihydrate complex: synthesis, crystal structure, EPR spectroscopy and magnetic properties

Auteur(s) :

Kamga, Idelle Nono [Auteur]
Département de Chimie Inorganique [Yaoundé I]
Nana, Augustin Nkwento [Auteur]
Département de Chimie Inorganique [Yaoundé I]
Ndosiri, Bridget Ndoye [Auteur]
Département de Chimie Inorganique [Yaoundé I]
Capet, Frederic [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Foulon, Michel [Auteur]
Nenwa, Justin [Auteur]
Département de Chimie Inorganique [Yaoundé I]

Titre de la revue :

Zeitschrift fur 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]

A new salt (CH6N3)[t-Cr(C2O4)2(H2O)2]·2H2O (1) (CH6N3+ = guanidinium cation) has been synthesized and characterized by single-crystal X-ray diffraction, FT-IR and UV–Vis spectroscopies, elemental and thermogravimetric ...
Lire la suite >A new salt (CH6N3)[t-Cr(C2O4)2(H2O)2]·2H2O (1) (CH6N3+ = 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(C2O4)2(H2O)2]− complex anions and CH6N3+ 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 :

Internationale

Vulgarisation :

Non

Établissement(s) :

CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Date de dépôt :

2022-03-24T09:03:05Z
2024-02-06T16:59:30Z