Javier Ellena

Synthesis and Structural Elucidation of a Novel Hetero-Dodecametallic Yttrium-Sodium Complex Based on EDTA: Insights into f/s-Block Coordination Chemistry

Ndiouga Fall, Amar Diop, Thierno Moussa Seck, Ibrahima Elhadji Thiam, Ousmane Diouf, Javier Ellena & Mohamed Gaye · International Research Journal of Pure and Applied Chemistry · 2025

Heterometallic f/s-block complexes are not plentiful but play pivotal roles in understanding metal synergy in materials science and catalysis. Reaction of Y(NO3)3.6H2O with EDTANa2.2H2O (ethylenediaminetetraacetic acid, disodium salt dihydrate) gives the dodecanuclear {Y4Na8(L)4(...

Open access Research Article 10.9734/irjpac/2025/v26i3913

Syntheses and X-ray Structure of N-(Benzothiazol-2-yl)-3-chlorobenzamide

Salif Sow, Felix Odame, Ngoné Diouf, Ibrahima Elhadj Thiam, Ousmane Diouf, Javier Ellena, Zenixole R. Tshentu & Mohamed Gaye · International Research Journal of Pure and Applied Chemistry · 2024

The reaction of 3-chloro-benzoyl chloride and 2-aminobenzothiazole in the presence of potassium thiocyanate yielded a yellowish solid C15H10ClN3OS2 (1). Reaction of 1 with cobalt chloride yield a yellowish solid C14H11ClN2O2S (2) which gives crystal suitable for X-ray analyses. T...

Open access Research Article 10.9734/irjpac/2024/v25i4861

Synthesis, and Characterization of Metal Transition Complexes Derived from the Schiff Base Ligand N,N'-Bis (5-bromosalicylidene)-Propane-1,2-Diamine (H2L)

Mbossé Ndiaye Guèye, Mariama Thiam, Pedro Henrique de Oliveira Santiago, Ngoné Diouf, Ibrahima Elhadji Thiam, Ousmane Diouf, Javier Ellena, Abdou Salam Sall & Mohamed Gaye · Chemical Science International Journal · 2024

Five new transition metal complexes [Mn(L)(Cl)] (1), [Fe(L)(Cl)] (2), [Co(L)(H2O)2] (3),  [Ni(L)(H2O)] (4) and [Cu(L)] (5), are synthesized from the Schiff base ligand N,N'-Bis(5-bromosalicylidene)-propane-1,2-diamine (H2L) which derived from the condensation of 5-bromosalicylald...

Open access Research Article 10.9734/CSJI/2024/v33i6942