Interactions of tetrakis-μ-acetato-dirhodium(II) with purine-derived ligands of biological interest such as the cytokinins 6-furfurilaminopurine (K), 6-benzylaminopurine (BAP), 6-furfurilaminopurine riboside (KR) and 6-benzylaminopurine riboside (BAPR) have been studied by means of magnetic susceptibility measurements at room temperature, i.r. and electronic spectroscopy and thermogravimetric analysis 1:1 metal:ligand adducts were obtained with all ligands; in addition 1:2 adducts were obtained with KR and BAPR. The most plausible structure for the 1:1 adducts is a polymeric bridging one, involving both axial positions of the RhII dimer and two N-sites of the purine moiety; for the 1:2 adducts only one N-site is involved. © 1991 Chapman and Hall Ltd.
Metal complexes of phytohormones. Part IV. Interactions of tetrakis-μ-acetato dirhodium(II) with 6-furfurilaminopurine, 6-benzylaminopurine, 6-furfurilaminopurine riboside and 6-benzylaminopurine riboside / Zoroddu, Maria Antonietta; Manca, Gavina; Mosca, Stefano. - In: TRANSITION METAL CHEMISTRY. - ISSN 0340-4285. - 16:3(1991), pp. 301-303. [10.1007/BF01024067]
Metal complexes of phytohormones. Part IV. Interactions of tetrakis-μ-acetato dirhodium(II) with 6-furfurilaminopurine, 6-benzylaminopurine, 6-furfurilaminopurine riboside and 6-benzylaminopurine riboside
ZORODDU, Maria Antonietta;MANCA, Gavina;
1991-01-01
Abstract
Interactions of tetrakis-μ-acetato-dirhodium(II) with purine-derived ligands of biological interest such as the cytokinins 6-furfurilaminopurine (K), 6-benzylaminopurine (BAP), 6-furfurilaminopurine riboside (KR) and 6-benzylaminopurine riboside (BAPR) have been studied by means of magnetic susceptibility measurements at room temperature, i.r. and electronic spectroscopy and thermogravimetric analysis 1:1 metal:ligand adducts were obtained with all ligands; in addition 1:2 adducts were obtained with KR and BAPR. The most plausible structure for the 1:1 adducts is a polymeric bridging one, involving both axial positions of the RhII dimer and two N-sites of the purine moiety; for the 1:2 adducts only one N-site is involved. © 1991 Chapman and Hall Ltd.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.