Molecular recognition between adenine or 2,6-diaminopurine and copper(II) chelates with N,O2,S-tripodal tetradentate chelators having thioether or disulfide donor groups
作者:Josefa María González-Pérez、Duane Choquesillo-Lazarte、Alicia Domínguez-Martín、Hanan El Bakkali、María Eugenia García-Rubiño、Inmaculada Pérez-Toro、Ester Vílchez-Rodríguez、Alfonso Castiñeiras、Valeria Marina Nurchi、Juan Niclós-Gutiérrez
DOI:10.1016/j.jinorgbio.2015.05.014
日期:2015.10
H4TCC·3H2O was also determined. All ternary Cu(II) complexes have molecular structures. The N-(2-mercaptoethyl)-iminodiacetate moieties of BCBC or TCC ligands play a NO2 + S-tripodal tetradentate role, with the S-(thioether or disulfide) atom as the apical/distal donor of the copper(II) center. In 1–3, the iminodiacetate moiety exhibits a mer-NO2 conformation (two nearly coplanar chelate rings) while in
五个新颖的三元铜(II)配合物,具有N,O 2,S-三脚架四齿螯合剂N,N-双(羧甲基)-S-苄基半胱氨酸(2-)离子(BCBC)或N,N,N',N' -四(羧甲基)半胱氨酸(4-)离子(TCC)和腺嘌呤(Hade),2,6-二氨基嘌呤(Hdap),2,2'-联吡啶(bpy)或1,10-菲咯啉(phen)作为共-配体被合成和表征通过X射线衍射等物理方法:[铜2(BCBC)2(μ 2 -N 3,N7-H(N9)ADE)(H 2 O)2 ]·H 2 O(1) [铜2(BCBC)2(μ 2 -N7,N9-H(N3)DAP)(H 2 O)2 ]·4H 2O(2),[铜2(μ 2 -TCC)(H(N9)ADE)2(H 2 O)2 ]·10H 2 O(3),[铜2(μ 2 -TCC)(联吡啶)2 ]·15H 2 O(4)和[铜2(μ 2 -TCC)(phen)的2 ]·14H 2 O(5)。还确定了H