TY - JOUR
T1 - Organometallic rhodium (I) complexes with 1-alkylaminopyrazole ligands
AU - Esquius, Glòria
AU - Pons, Josefina
AU - Yáñez, Ramón
AU - Ros, Josep
PY - 2001/1/30
Y1 - 2001/1/30
N2 - New bidentate NN′ and tridentate NN′N 1-alkylaminopyrazoles were synthesized and characterized by elemental analyses and spectroscopic methods. The reaction of [RhCl(cod)2] (cod=cycloocta-1,5-diene) with one equivalent of L 1-alkylaminopyrazoles afforded Rh2Cl2(L)(cod)2 complexes (L=NN′ and NN′N). These rhodium (I) compounds were studied by IR, 1H- and 13C-NMR and liquid mass (with electrospray and APCI interfaces) spectrometries. The 1H-NMR spectra and molar conductances of these complexes suggested the presence of 1:1 electrolyte species, [Rh(L)cod]+ [RhCl2(cod)]-, in solution. A combined electrospray and APCI liquid mass spectroscopy study confirmed the presence of both [Rh(L)cod]+ and [RhCl2(cod)]- species in solution but the existence of a neutral molecular form of complexes in solution could not be demonstrated. © 2001 Elsevier Science B.V.
AB - New bidentate NN′ and tridentate NN′N 1-alkylaminopyrazoles were synthesized and characterized by elemental analyses and spectroscopic methods. The reaction of [RhCl(cod)2] (cod=cycloocta-1,5-diene) with one equivalent of L 1-alkylaminopyrazoles afforded Rh2Cl2(L)(cod)2 complexes (L=NN′ and NN′N). These rhodium (I) compounds were studied by IR, 1H- and 13C-NMR and liquid mass (with electrospray and APCI interfaces) spectrometries. The 1H-NMR spectra and molar conductances of these complexes suggested the presence of 1:1 electrolyte species, [Rh(L)cod]+ [RhCl2(cod)]-, in solution. A combined electrospray and APCI liquid mass spectroscopy study confirmed the presence of both [Rh(L)cod]+ and [RhCl2(cod)]- species in solution but the existence of a neutral molecular form of complexes in solution could not be demonstrated. © 2001 Elsevier Science B.V.
KW - 1-Alkylaminopyrazoles
KW - Electrospray mass spectra
KW - Rhodium complexes
KW - Rhodium-amine complexes
U2 - 10.1016/S0022-328X(00)00662-8
DO - 10.1016/S0022-328X(00)00662-8
M3 - Article
SN - 0022-328X
VL - 619
SP - 14
EP - 23
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 1-2
ER -