Rhenium(I)- and technetium(I) tricarbonyl complexes anchored by bifunctional pyrazole-diamine and pyrazole-dithioether chelators
作者:Rute F. Vitor、Susana Alves、J.D.G. Correia、António Paulo、Isabel Santos
DOI:10.1016/j.jorganchem.2004.09.033
日期:2004.12
coordinated to the Re(I) centre through the nitrogen from the pyrazole ring and the two thioether sulphur atoms, without involvement of the terminal ester functional group. The distorted octahedral coordination environment around the metal is completed by the three facial carbonyl ligands. The radioactive congeners of complexes 1, 3 and 4, fac-[99mTc(CO)3(κ3-L)]+ (L = L1 (1a), L3 (3a), L4 (4a)), have been prepared
新型的吡唑基含有配体4-(HOOC)pz(CH 2)2 NH(CH 2)2 NH 2(L 1)和4-(HOOCCH 2)-3,5-Me 2 pz(CH 2)2 NH( CH 2)2 NH 2(L 2)和3,5-Me 2 pz(CH 2)2 S(CH 2)2 SCH 2 CH 3(L 3),3,5-Me 2 pz(CH 2)合成了2 S(CH 2)2 SCH 2 COOEt(L 4)和3,5-Me 2 pz(CH 2)2 S(CH 2)2 SCH 2 COOH(L 5),并且它们稳定了与评估了fac- [M(CO)3 ] +(M = Re,99m Tc)部分。的反应大号1 -大号5与起始材料的Re(I)三羰基(NET 4)2 [的Re(CO)3BR 3 ]和/或[的Re(CO)5 BR],得到络合物FAC - [的Re(CO)3(κ 3 -L)](L = 大号1 -大号5(1 - 5)),其