Platinum(II) imidazo[4,5-f]-1,10-phenanthroline chloride and thiolate complexes: Synthesis and crystal structures
摘要:
The planar aromatic imidazo[4,5-f]-1,10-phenanthroline ligands have been used to prepare platinum(II) chloride and thiolate complexes. The X-ray structures of two thiolate compounds are reported, which show column-like packing in the solid state due to intermolecular aromatic pi-pi interactions. The compounds absorb moderately in the visible region, owing to {charge-transfer-to-diimine} electronic transition. (c) 2006 Elsevier B.V. All rights reserved.
Fused imidazoles as potential chemical scaffolds for inhibition of heat shock protein 70 and induction of apoptosis. Synthesis and biological evaluation of phenanthro[9,10-d]imidazoles and imidazo[4,5-f][1,10]phenanthrolines
作者:Alpa Patel、Swee Y. Sharp、Katelan Hall、William Lewis、Malcolm F. G. Stevens、Paul Workman、Christopher J. Moody
DOI:10.1039/c6ob00471g
日期:——
Fused imidazoles inhibit growth of human cancer cell lines, and the Hsp70 pathway in cells, and induce apoptosis.
融合咪唑类化合物抑制人类癌细胞系的生长,影响细胞中的Hsp70途径,并诱导凋亡。
Rhenium(i) tricarbonyl polypyridine complexes showing strong absorption of visible light and long-lived triplet excited states as a triplet photosensitizer for triplet–triplet annihilation upconversion
作者:Xiuyu Yi、Jianzhang Zhao、Wanhua Wu、Dandan Huang、Shaomin Ji、Jifu Sun
DOI:10.1039/c2dt30804e
日期:——
(Phenyl, Re-0; Coumarin, Re-1 and naphthyl, Re-2). Re-1 showsstrongabsorption of visiblelight (ε = 60 800 M−1 cm−1 at 473 nm). Both Re-1 and Re-2 showlong-lived T1 states (lifetime, τT, is up to 86.0 μs and 64.0 μs, respectively). These properties are in contrast to the weak absorption of visiblelight and short-lived tripletexcitedstates of the normal rhenium(I) tricarbonyl polypyridine complexes
据报道,show (I)三羰基聚吡啶配合物的制备显示出对可见光的强烈吸收和长寿命的三重态激发态,并已将这些配合物作为三重态光敏剂用于基于三重态-三重态an灭(TTA)的上转换。咪唑稠合的菲咯啉用作N ^ N配位配体,其上连接有不同的芳基(苯基,Re-0;香豆素,Re-1和萘基,Re-2)。Re-1显示出对可见光的强烈吸收(在473 nm下ε = 60 800 M -1 cm -1)。双方重新-1和RE-2示出了长寿命Ť 1种状态(寿命,τ Ť,是分别高达86.0微秒和64.0微秒)。这些性质与正常rh(I)三羰基聚吡啶配合物(例如Re-0(ε = 5100 M -1 cm -1在439 nm,τ)下对可见光的吸收较弱和短寿命的三线态激发态相反)T = 2.2μs)。使用稳态和时间分辨吸收和发射光谱仪以及DFT计算对配合物的光物理性质进行了全面研究。配体内三重态激发态被认为是导致超长寿命T的
A Remote ‘Imidazole’‐Based Ruthenium(II) Para‐Cymene Pre‐catalyst for the Selective Oxidation Reaction of Alkyl Arenes and Alcohols
作者:Manali Dutta、Kusum K. Bania、Sanjay Pratihar
DOI:10.1002/asia.201901760
日期:2020.3.16
the 'imidazole' moiety. The mechanistic features of C-1 promoted oxidation of alkyl arenes were also assessed from spectroscopic, kinetic, and few control experiments. The substrate scope for C-1 promoted oxidation reaction was assessed based on the selective oxidation of 27-different alkyl arenes/heteroarenes and 25 different alcohols to their corresponding aldehydes/ketones in moderate to good yields
Imidazole fused phenanthroline (PIP) ligands for the preparation of multimodal Re(<scp>i</scp>) and <sup>99m</sup>Tc(<scp>i</scp>) probes
作者:Samantha R. Slikboer、Tamil Selvi Pitchumony、Laura Banevicius、Natalie Mercanti、Patricia E. Edem、John F. Valliant
DOI:10.1039/d0dt02829k
日期:——
small library of [2 + 1] 99mTc(I) complexes based on phenyl-imidazole-fused phenanthroline (PIP) ligands were synthesized and evaluated as multimodal molecular imaging probes. Using either a two-step or a one-pot synthesis method, 99mTc-PIP complexes containing N-methylimidazole as the monodentate ligand were prepared and isolated in good (54 to 89%) radiochemical yield, with the exception of one derivative
Platinum Phenanthroimidazole Complexes as G-Quadruplex DNA Selective Binders
作者:Roxanne Kieltyka、Johans Fakhoury、Nicolas Moitessier、Hanadi F. Sleiman
DOI:10.1002/chem.200700783
日期:2008.1.28
the Pt(II)/quadruplexDNAcomplex. The match in the pi-surface of these phenanthroimidazole Pt(II) complexes with quadruplexDNA was further substantiated by molecular modeling studies. Numerous favorable pi-stacking interactions with the large aromatic surface of the intermolecular G-quadruplex, and unforeseen hydrogen bonds between the ancillary ethylenediamine ligands and the quadruplex phosphate