Synthesis, characterization and interaction with bovine serum albumin of cyclometallated Pd(II) complexes containing arylimine and salicylaldimine co-ligands
摘要:
Cyclometallated Pd(II) complexes containing arylimine and salicylaldimine co-ligands were synthesized by the reactions of cyclopalladated chloro dimers [Pd{(4-R)C6H3CH=N-C6H3-2,6-i-Pr-2}(mu-Cl)](2) (R - H; OMe) with salen-based ligands derived from rimantadine. The complexes were characterized by FTIR, NMR spectroscopy, elemental analysis and X-ray crystallography. Interaction of cyclometallated Pd(II) complexes with BSA was studied by fluorescence and synchronous fluorescence spectroscopy. The fluorescence intensities of protein are decreased gradually with increasing concentration of complexes. In the synchronous fluorescence spectra of BSA at Delta lambda = 15 nm and Delta lambda = 60 nm, the fluorescence of intensities of protein also are decreased with increasing concentration of complexes. (C) 2015 Elsevier B.V. All rights reserved.
copper(II) mononuclear molecules. All the complexes crystallize in the monoclinic system, P21/c space group for 1a and 2; P21/n space group for 1b; C2/c space group for 3. Each complex for 1–3 consists of one copper(II) and two corresponding deprotonated ligands. The central copper(II) in all complexes is four-coordinate via two nitrogens and two oxygens from the corresponding Schiff base ligands. The
摘要 氯化铜 (II) 二水合物与源自金刚乙胺和水杨醛(或甲氧基取代的水杨醛)的三个庞大的席夫碱配体反应,分别生成 C38H48CuN2O2 (1)、C40H52CuN2O4 (2) 和 C40H52CuN2O4 (3)。这些配合物通过红外光谱、紫外-可见光、元素分析和摩尔电导表征。X 射线单晶衍射分析表明 1 具有两种不同的空间构型,1a 和 1b。对于 1a,每个不对称单元由一个单核铜 (II) 分子组成。对于 1b,每个不对称单元由两个铜 (II) 单核分子组成。所有配合物均在单斜晶系中结晶,1a和2为P21/c空间群;1b的P21/n空间群;C2/c 空间群为 3。1-3 的每个配合物由一个铜 (II) 和两个相应的去质子化配体组成。所有配合物中的中心铜 (II) 都是四配位的,通过来自相应席夫碱配体的两个氮和两个氧。1a、1b 和 2 中铜周围的几何形状是扭曲的方形平面,但在 3
Synthesis, characterization and interaction with bovine serum albumin of cyclometallated Pd(II) complexes containing arylimine and salicylaldimine co-ligands
Cyclometallated Pd(II) complexes containing arylimine and salicylaldimine co-ligands were synthesized by the reactions of cyclopalladated chloro dimers [Pd(4-R)C6H3CH=N-C6H3-2,6-i-Pr-2}(mu-Cl)](2) (R - H; OMe) with salen-based ligands derived from rimantadine. The complexes were characterized by FTIR, NMR spectroscopy, elemental analysis and X-ray crystallography. Interaction of cyclometallated Pd(II) complexes with BSA was studied by fluorescence and synchronous fluorescence spectroscopy. The fluorescence intensities of protein are decreased gradually with increasing concentration of complexes. In the synchronous fluorescence spectra of BSA at Delta lambda = 15 nm and Delta lambda = 60 nm, the fluorescence of intensities of protein also are decreased with increasing concentration of complexes. (C) 2015 Elsevier B.V. All rights reserved.