Influence of 4-toluenesulphonyl group on the coordination properties of DL-asparagine and L-glutamine.

Menabue, Ledi; Saladini, Monica; Morini, P.

doi:10.1016/S0277-5387(00)83841-3

From the interaction between N-tosyl-dl-asparagine (TsasnH), N-tosyl-l-glutamine (TsglnH) (tosyl = 4-toluenesulphonyl) and copper(II) ion in aqueous solution, compounds of formula CuL2·XH2O·YC2H5OH (L = tosyl-α-aminoacidate monoanion), Cu(LH–1)·2H2O (LH–1 = tosyl-α-aminoacidate dianion) and K2[Cu(LH–1)2] were isolated. By potentiometric and spectrophotometric measurements, the number and type of complex species and their cumulative formation constants were determined. The treatment of data confirmed, also in solution, the formation of the complexes separated in the solid state and defined the pH range in which they are stable. The coordination behaviour of these ligands is compared with that of parent amino acids and other N-tosyl-derivatives.

Influence of 4-toluenesulphonyl group on the coordination properties of DL-asparagine and L-glutamine / Menabue, Ledi; Saladini, Monica; P., Morini. - In: POLYHEDRON. - ISSN 0277-5387. - STAMPA. - 8(1989), pp. 739-744.

Data di pubblicazione:	1989
Titolo:	Influence of 4-toluenesulphonyl group on the coordination properties of DL-asparagine and L-glutamine.
Autore/i:	Menabue, Ledi; Saladini, Monica; P., Morini
Autore/i UNIMORE:	MENABUE, Ledi SALADINI, Monica P. Morini mostra contributor esterni nascondi contributor esterni
Digital Object Identifier (DOI):	http://dx.doi.org/10.1016/S0277-5387(00)83841-3
Rivista:	POLYHEDRON
Volume:	8
Pagina iniziale:	739
Pagina finale:	744
Codice identificativo ISI:	WOS:A1989T851200004
Codice identificativo Scopus:	2-s2.0-0039969963
Citazione:	Influence of 4-toluenesulphonyl group on the coordination properties of DL-asparagine and L-glutamine / Menabue, Ledi; Saladini, Monica; P., Morini. - In: POLYHEDRON. - ISSN 0277-5387. - STAMPA. - 8(1989), pp. 739-744.
Tipologia	Articolo su rivista

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http://hdl.handle.net/11380/732862

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