Open AccessCalculation of the stability constants for the complex formation of dioxovanadium (V) with methyliminodiacetic acid in various H2O + CH3OH solutions using kamlet-abboud-taft equation
Author(s) -
Kavosh Majlesi,
Saghar Rezaienejad,
Doustmand Nazila Sarabi,
Mehrdokht Fahmi,
Fereshteh Tahamtan
Publication year - 2013
Publication title -
journal of the serbian chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.227
H-Index - 45
eISSN - 1820-7421
pISSN - 0352-5139
DOI - 10.2298/jsc130317072m
Subject(s) - chemistry , taft equation , solvatochromism , sodium perchlorate , potentiometric titration , methanol , computational chemistry , solvent , organic chemistry , ion , electrode , substituent , electrochemistry
The stability constants for the complex formation of VO2+ cation with methyliminodiacetic acid (MIDA) have been determined in this research for various volume fractions of methanol (0-45% v/v) at T = 298 K, I = 0.1 mol dm-3 of sodium perchlorate. Potentiometric and UV spectrophotometric methods have been utilized for the collection of experimental data. Different species were investigated but the best model contains VO2HL and VO2L- for our data treatment. One, two and three parameters Kamlet-Abboud-Taft (KAT) equations have been applied for the determination and calculation of KAT model solvatochromic regression coefficient