The Schiff-base probe H2VL [6,6'-((1E,1'E)-hydrazine-1,2 diylidenebis(methanylylidene))bis(2-methoxyphenol)] is synthesized and structurally characterized by single crystal X-ray diffraction (SCXRD). H2VL is able to detect selectively acetate ion (OAc-) colorimetrically over other anions with 1:1 co-ordination. The detection limit is found to be 4.93 µM. On the other hand, fluorescence intensity of the receptor is drastically enhanced with Zn2+ and Cd2+ in the presence of acetate as counter anion. N, N-Dimethyl formamide (DMF) or Dimethylsulphoxide (DMSO) and acetate (OAc-) was the best solvent and counter anion for Zn2+/Cd2+ -sensing compared with other solvents and anions, respectively. Detection limit for Zn2+ and Cd2+ are calculated to be 1.94 µM and 1.99 µM, respectively. The strong selective emissive behavior could be attributed to the CHEF (chelation-enhanced fluorescence) process. According to the changes in output emission intensity in DMSO in response to the set of ions (Zn2+, Cd2+ and OAc¯) as input variables, the function of 3-input multifunctional molecular logic circuits has been demonstrated. The molecular docking studies of H2VL with DNA and BSA are also performed to confirm its possible bioactivity.
                                    通过单晶X射线衍射(SCXRD)对希夫碱探针H2VL(6,6'-((1E,1'E)-
肼-1,2二亚基双(甲基亚甲基))双(2-
甲氧基苯酚))进行了合成和结构表征。H2VL能够以比色法选择性地检测
乙酸盐离子(OAc-),而不会检测到其他配位数为1:1的阴离子。检测限为4.93 µM。另一方面,在
乙酸盐作为配位阴离子存在的情况下,受体的荧光强度会随着Zn2+和Cd2+的加入而急剧增强。与其他溶剂和阴离子相比,N, N-二甲基甲酰胺(
DMF)或
二甲基亚砜(
DMSO)和
乙酸盐(OAc-)分别是检测Zn2+/Cd2+的最佳溶剂和配位阴离子。Zn2+和Cd2+的检测限分别计算为1.94 µM和1.99 µM。这种强烈的选择性发射行为可归因于CHEF(螯合增强荧光)过程。根据
DMSO中输出发射强度随一组离子(Zn2+、Cd2+和OAc¯)作为输入变量而发生的变化,证明了3输入多功能分子逻辑电路的功能。还进行了H2VL