Spectral and magnetic properties, and biological activity of several coordination compounds of dinegative isoorotato and 2-thiosoorotato ligands. Crystal structure of the tetrameric complex [Cu4(isoorotato2−)4(NH34(H2O2]·4H2O
作者:Francisco Hueso-Ureña、Miguel N. Moreno-Carretero、Miguel Quirós-Olozábal、J.M. Salas-Peregrín、René Faure、Gerardo Alvarez de Cienfuegos-López
DOI:10.1016/0020-1693(95)04741-7
日期:1996.1
led to complexes with general formula MnII(HL2−)·xNH3·yH2O. These compounds were characterized by spectral methods, (IR, UV- Vis-NIR and EPR), magnetic moments and conductivity measurements. The most common coordination mode of uracil derivatives seems to be a O4-OCO six-membered chelate ring. The X-ray structure of [Cu4(isoorotato)4(NH3)4(H2O)2]·4H2O consists of tetrameric units; each ligand bridging
Thiouracil derivatives and metal surface-treating agent comprising
申请人:Tokuyama Corporation
公开号:US05795497A1
公开(公告)日:1998-08-18
A thiouracil derivative represented by the following general formula (1) or (2) ##STR1## (wherein, R.sup.1 and R.sup.2 each are a hydrogen atom or an alkyl group, and at least one of R.sup.1 and R.sup.2 is a hydrogen atom, and R.sup.3 is a hydrogen atom, an alkyl group or a phenyl group, and R.sup.4 is a bivalent saturated hydrocarbon group having 2 to 12 carbon atoms, Z is --COO--, CH.sub.2 O-- or --C.sub.6 H.sub.4 --CH.sub.2 O--, and R.sup.5 is a hydrogen atom or a methyl group), and a metal surface-treating agent for bonding a metal, particularly a noble metal to a resin or the like in high adhesive strength and in high water resistance and high durability which contains the above thiouracil derivative and an organic solvent such as acetone or ethanol.
Thermal, spectral and biological studies or metal complexes of isoorotic and 2-thioisoorotic acids
作者:F. Hueso-Urena、M.N. Morno-Carretero、J.M. Salas-Peregrin、C. Valenzuela-Calahorro、G.Alvarez de Cinefuegos-Lopez
DOI:10.1016/0040-6031(88)87180-6
日期:1988.10
Abstract From reaction, in aqueous medium, of isoorotic (H2 CU) and 2-thioisoorotic (H2 CTU) acids with several first row transition metal ions, complexes of general formula M(HL)2 . 2H2O have been obtained. These were studied by thermal (TG, DTG and DSC) and spectral methods (IR). Likewise, the antibacterial activity of these compounds is reported.