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Physico‐Chemical Characteristics and Formation Constants of Mono‐ and Binuclear Co(II), Ni(II) and Cu(II) Chelates with Phthaleincomplexone
Author(s) -
AbdElmottaleb Mohamed,
AbuElwafa Samy M.,
Issa R.M.
Publication year - 1990
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199000062
Subject(s) - chemistry , stoichiometry , stability constants of complexes , chelation , absorption spectroscopy , spectral line , inorganic chemistry , crystallography , analytical chemistry (journal) , organic chemistry , physics , quantum mechanics , astronomy , aqueous solution
Abstract A series of Co(II), Ni(II) and Cu(II) complexes of the type [M(PC)]2H 2 O and [M 2 (PC)]4H 2 O, where PC is phthaleincomplexone (metalphthalein), are synthesized. It is attempted to throw some light on (heir stoichiometry, structure and stability. The formation of 1:1 and 2:1 (M:L) complexes is confirmed by their elemental microanalysis. The compounds are characterized by IR, electronic absorption spectra, X‐band ESR spectra, magnetic moments and TGA measurements. The conditional stability constants are also determined.