HL is predominating over azoenol form. In copper(II) complex the ligand is present in azoenol form. The electronic spectra and electronicstructure of the complex has been extensively studied. The structures of the ligand and copper(II) complex have been established from single crystal X-ray studies. The 1-D supramolecular structure of the complex is formed by π–π interactions.
摘要 已经进行了含有 NSNO 供体偶氮配体 (HL) 的硫醚的合成,显示出肼基酮和偶氮烯醇互变异构现象。已经研究了 HL 的 hydrazoketo 和 azoenol 平衡。HL 的肼基酮形式比偶氮烯醇形式占优势。在铜 (II) 配合物中,配体以偶氮烯醇形式存在。络合物的电子光谱和电子结构已被广泛研究。配体和铜 (II) 配合物的结构已通过单晶 X 射线研究确定。复合物的一维超分子结构是由 π-π 相互作用形成的。
Ruthenium(III) complexes with tetradentate NSNO donor ligand: Synthesis, electronic structure, catalytic activity and DFT calculation
作者:Ajoy Kumar Pramanik、Tapan Kumar Mondal
DOI:10.1016/j.ica.2013.11.035
日期:2014.2
arrangement. Reversible Ru(III)/Ru(II) reduction couple along with irreversible Ru(III)/Ru(IV) oxidation has been observed for the complexes. The complexes catalyze the oxidation of alcohols to aldehydes and ketones in presence of NMO as co-oxidant with moderate to high yields. The electronic structure and solution spectra of the complexes have been supported by DFT and TDDFT calculations.
A FRET operated sensor for intracellular pH mapping: strategically improved efficiency on moving from an anthracene to a naphthalene derivative
作者:Arnab Banerjee、Animesh Sahana、Sisir Lohar、Bidisha Sarkar、Subhra Kanti Mukhopadhyay、Debasis Das
DOI:10.1039/c3ra41591k
日期:——
Two novel fluorescent probes based on anthracene (AAC) and naphthalene (ANC) have been synthesised and characterised. Both the AAC and ANC derivative show green fluorescence at basic pH, but at acidic pH AAC is non-fluorescent, while ANC emits red light. This is attributed primarily to the FRET on–off processes. ANC has better pH discrimination abilities than AAC and can be used to distinguish between different pH environments inside a living cell for the first time.
Design and Synthesis of Cinanserin Analogs as Severe Acute Respiratory Syndrome Coronavirus 3CL Protease Inhibitors
作者:Qingang Yang、Lili Chen、Xuchang He、Zhenting Gao、Xu Shen、Donglu Bai
DOI:10.1248/cpb.56.1400
日期:——
The severe acute respiratory syndrome (SARS) coronavirus 3CL protease is an attractive target for the development of anti-SARS drugs. In this paper, cinanserin (1) analogs were synthesized and tested for the inhibitory activities against SARS-coronavirus (CoV) 3CL protease by fluorescence resonance energy transfer (FRET) assay. Four analogs show significant activities, especially compound 26 with an IC50 of 1.06 μM.