Characterization of Cobalt(III) Hydroxamic Acid Complexes Based on a Tris(2-pyridylmethyl)amine Scaffold: Reactivity toward Cysteine Methyl Ester
作者:Mickael Alimi、Anas Allam、Mohamed Selkti、Alain Tomas、Pascal Roussel、Erwan Galardon、Isabelle Artaud
DOI:10.1021/ic301090t
日期:2012.9.3
Six Co(III) complexes based on unsubstituted or substituted TPA ligands (where TPA is tris(2-pyridylmethyl)amine) and acetohydroxamic acid (A), N-methyl-acetohydroxamic acid (B), or N-hydroxy-pyridinone (C) were prepared and characterized by mass spectrometry, elemental analysis, and electrochemistry: [Co(III)(TPA)(A-2H)](Cl) (1a), [Co(III)((4-Cl2)TPA)(A-2H)](Cl) (2a), [Co(III)((6-Piva)TPA)(A-2H)](Cl)
基于未取代或取代的TPA配体(其中TPA是三(2-吡啶基甲基)胺)和乙酰氧肟酸(A),N-甲基-乙酰氧肟酸(B)或N-羟基吡啶酮(C的六种Co(III)配合物)的制备,表征及质谱,元素分析和电化学分析:[Co(III)(TPA)(A-2H)](Cl)(1a),[Co(III)((4-Cl 2)TPA) (A-2H)](Cl)(2a),[Co(III)((6-Piva)TPA)(A-2H)](Cl)(3a),[Co(III)((4-Piva) TPA)(A-2H)](Cl)(4a)和[Co(III)(TPA)(B–H)](Cl)2(1b)和[Co(III)(TPA)(C–H )](Cl)2(1c)。通过1 H NMR,使用2D(1 H,1 H)COZY和2D(1 H,13 C)HMBC和HSQC对复合物1a – c和3a进行分析,根据是否异羟肟氧是反式于吡啶氮或叔胺氮。配合物3a以结晶的单一