Benign synthesis of N-(8-quinolyl)pyridine-2-carboxamide) ligand (Hbpq), and its Ni (II) and Cu (II) complexes. A fluorescent probe for direct detection of nitric oxide in acetonitrile solution based on Hbpq copper(II) acetate interaction
作者:Soraia Meghdadi、Mehdi Amirnasr、Ahmad Amiri、Zahra Musavizadeh Mobarakeh、Zahra Azarkamanzad
DOI:10.1016/j.crci.2013.10.003
日期:2014.5
reaction medium. Four new complexes of this ligand, [M(bpq)X] (M = Cu(II), X = SCN (1), N3 (2); M = Ni(II), X = SCN (3), N3 (4)), have also been synthesized and fully characterized. The crystal and molecular structures of [Cu(bpq)(NCS)]n (1) have been determined by X-ray crystallography. Copper(II) ion adopts a distorted square pyramidal (4 + 1) coordination in this complex. Hbpq ligand shows a strong
摘要 使用四丁基溴化铵 (TBAB) 作为环境友好的反应介质制备了配体 Hbpq = N-(8-quinolyl)pyridine-2-carboxamide)。该配体的四种新配合物 [M(bpq)X] (M = Cu(II), X = SCN (1), N3 (2); M = Ni(II), X = SCN (3), N3 ( 4)),也已经合成并充分表征。[Cu(bpq)(NCS)]n (1) 的晶体和分子结构已通过 X 射线晶体学确定。铜 (II) 离子在该复合物中采用扭曲的方形金字塔 (4 + 1) 配位。Hbpq 配体在乙腈溶液中在 500 nm 处显示出强发射。在醋酸铜 (II) 存在下,发射被淬灭,显然是因为 [Cu(L)(OAc)(H2O)] 络合物的形成。在室温下将一氧化氮 (NO) 引入乙腈溶液会导致荧光强度增加,这可能是由于 Cu(II) 还原为 Cu(I)。这个过程是可逆的,可以形成直接检测