cis-diazidobis(ethylenediamine)cobalt(III) mesitylenesulphonate hemihydrate, [cis-Co(en)(2)(N-3)(2)]C(9)H(11)SO(3)(.)0.5H(2)O was crystallized from a solution of cis-diazidobis(ethylenediamine) cobalt(III) nitrate and sodium mesityleriesulphonate in aqueous medium in 1:1 molar ratio. Elemental analysis, spectroscopic studies (IR, UV/visible, H-1 and C-13 NMR) and conductance studies were undertaken for characterizing the complex salt. The compound crystallizes in the triclinic space group P-I with a=7.15220(10), b=14.5218(3), c=20.6925(5), V= 2058.48(7), Z=4. X-ray structure determination revealed an ionic structure consisting of [cis-Co(en)(2)(N-3)(2)](+) cation, mesitylenesulphonate anion and half water molecule. In the complex cation [cis-Co(en)2(N3)2](+), the cobalt(III) is bonded to six nitrogen atoms, originating from two ethylenediamines, and two azide groups showing an octahedral geometry around cobalt. The crystal lattice is stabilized by electrostatic forces of attraction and hydrogen bonding interactions predominantly N-H...O-, suggesting that [cis-Co(en)(2)(N-3)(2)](+) is a promising anion receptor for the mesitylenesulphonate ion. This is the first report of a sulphonate salt containing the present cationic cobaltammine.

Second sphere coordination in anion binding: Synthesis, characterization and X-ray structure of cis-diazidobis(ethylenediamine)cobalt(III) mesitylenesulphonate hemihydrate

PRETTO, Loretta;FERRETTI, Valeria
2006

Abstract

cis-diazidobis(ethylenediamine)cobalt(III) mesitylenesulphonate hemihydrate, [cis-Co(en)(2)(N-3)(2)]C(9)H(11)SO(3)(.)0.5H(2)O was crystallized from a solution of cis-diazidobis(ethylenediamine) cobalt(III) nitrate and sodium mesityleriesulphonate in aqueous medium in 1:1 molar ratio. Elemental analysis, spectroscopic studies (IR, UV/visible, H-1 and C-13 NMR) and conductance studies were undertaken for characterizing the complex salt. The compound crystallizes in the triclinic space group P-I with a=7.15220(10), b=14.5218(3), c=20.6925(5), V= 2058.48(7), Z=4. X-ray structure determination revealed an ionic structure consisting of [cis-Co(en)(2)(N-3)(2)](+) cation, mesitylenesulphonate anion and half water molecule. In the complex cation [cis-Co(en)2(N3)2](+), the cobalt(III) is bonded to six nitrogen atoms, originating from two ethylenediamines, and two azide groups showing an octahedral geometry around cobalt. The crystal lattice is stabilized by electrostatic forces of attraction and hydrogen bonding interactions predominantly N-H...O-, suggesting that [cis-Co(en)(2)(N-3)(2)](+) is a promising anion receptor for the mesitylenesulphonate ion. This is the first report of a sulphonate salt containing the present cationic cobaltammine.
2006
Sharma, R. P.; Sharma, R.; Bala, R.; Singh, K. N.; Pretto, Loretta; Ferretti, Valeria
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/517918
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 23
  • ???jsp.display-item.citation.isi??? 23
social impact