SYNTHESIS OF 1,3-BIS[BIS(3-AMINOPROPYL)AMINOMETHYL]BENZENE AND 1,4-BIS[BIS(3-AMINOPROPYL)AMINOMETHYL]BENZENE AND POTENTIOMETRIC DETERMINATION OF THE FORMATION-CONSTANTS OF THEIR COMPLEXES WITH COPPER(II), NICKEL(II) AND COBALT(II)

Authors
KEYPOUR H SEDIGHI B ASADI A PARISH RV
Citation
H. Keypour et al., SYNTHESIS OF 1,3-BIS[BIS(3-AMINOPROPYL)AMINOMETHYL]BENZENE AND 1,4-BIS[BIS(3-AMINOPROPYL)AMINOMETHYL]BENZENE AND POTENTIOMETRIC DETERMINATION OF THE FORMATION-CONSTANTS OF THEIR COMPLEXES WITH COPPER(II), NICKEL(II) AND COBALT(II), Transition metal chemistry, 23(1), 1998, pp. 7-12
Citations number
17
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Transition metal chemistry
ISSN journal
03404285 → ACNP
Volume
23
Issue
1
Year of publication
1998
Pages
7 - 12
Database
ISI
SICI code
0340-4285(1998)23:1<7:SO1A1>2.0.ZU;2-T
Abstract
The synthesis and characterisation of the title ligands (MXBDP and PXB DP) are described. The successive protonation constants log (K-n) are: for MXBDP, 10.77, 10.44, 9.82, 8.88, 3.19 and 1.48; for PXBDP, 10.94, 10.58, 9.90, 9.38, 3.37 and 2.27. (n = 1-6). With copper(II) nickel(I I) and cobalt(II) both ligands preferentially form binuclear complexes , M2L4+ (L = MXBDP, PXBDP), for which the formation constants [log bet a(M2L), M = Cu, Ni, Co] are: for MXBDP, 22.16, 16.20, 11.07; for PXBDP , 25.48, 17.18 and 12.74, respectively. The copper complexes Cu-2(MXBD P)Cl-4 . 4H(2)O and Cu-2(PXBDP)Cl-4 . 2H(2)O have been isolated.