Synthesis and spectral studies on platinum complexes with mono- and bidentate N-donor organic ligands
作者:P. Umapathy、Rashida A. Harnesswala
DOI:10.1016/s0277-5387(00)83944-3
日期:1983.1
3/2 binding energies in the square planar Pt(II) complexes are observed in the range 198.8 ± 0.8 eV. The ν (PtCl) vibrations ( ca 335 and 320 cm −1 ) corresponding to two cis -Cl ligands were observed in the IR spectra. The extent of the interaction between cis -dichloro- bis -(theophylline)platinum(II) with calf thymus DNA has beenstudied. The UV difference spectra resulting from aquated Pt II (theoph)
摘要类型为PtLX 2,PtL 2 X 2,PtLX“的铂(II)配合物和PtLXY(P =含氮供体原子的单或双齿有机配体; X = Cl或Br; X'=草酸盐或丙二酸盐和Y = Br)已合成,并通过其元素分析,IR和X射线光电子能谱数据进行了表征。Pt 4f 7/2的结合能表明,1,8-萘二胺配体比这里研究的其他配体更好地为金属提供了电子密度。在方形平面Pt(II)配合物中的Cl 2p 3/2结合能在198.8±0.8 eV范围内观察到。在红外光谱中观察到对应于两个顺式-Cl配体的ν(PtCl)振动(约335和320 cm -1)。研究了顺式-二氯双-(茶碱)铂(II)与小牛胸腺DNA相互作用的程度。由水合的Pt II(theoph)2 -DNA相互作用产生的UV差异光谱在282和292 nm处显示条带,这归因于与铂结合引起的碱基部分电子分布的变化以及碱基堆积的损失。用铂络合物处理的D
[EN] PHOTOCHROMIC DIARYLETHENE-CONTAINING COORDINATION COMPOUNDS AND THE PRODUCTION THEREOF<br/>[FR] COMPOSES DE COORDINATION PHOTOCHROMIQUES CONTENANT DU DIARYLETHENE ET PRODUCTION DE CEUX-CI
申请人:UNIV HONG KONG
公开号:WO2005003126A1
公开(公告)日:2005-01-13
Diarylethene-containing ligands and their coordination compounds are described. The ligands display photochromism with UV excitation, while the coordination compounds display photochromism with both excitation in the UV region and excitation into lower energy absorption bands characteristic of the coordination compounds, through which the excitation wavelengths for the photocyclization can be extended from lambda <= 340 nm to wavelengths beyond 470 nm. Switching of the luminescence properties of the compounds has also been achieved through photochromic reactions.
Photochromic and Luminescence Switching Properties of a Versatile Diarylethene-Containing 1,10-Phenanthroline Ligand and Its Rhenium(I) Complex
作者:Vivian Wing-Wah Yam、Chi-Chiu Ko、Nianyong Zhu
DOI:10.1021/ja047446q
日期:2004.10.1
A versatile bis(2,5-dimethyl-3-thienyl)-1,10-phenanthroline photochromic ligand has been successfully synthesized via a Suzuki cross-coupling reaction. The excitation wavelength for photochromic reaction of the dithienylphenanthroline could be extended from lambda
Synthesis, Characterization, and Properties of Iron(II) Spin-Crossover Molecular Photoswitches Functioning at Room Temperature
作者:Max Mörtel、Alexander Witt、Frank W. Heinemann、Sebastian Bochmann、Julien Bachmann、Marat M. Khusniyarov
DOI:10.1021/acs.inorgchem.7b01952
日期:2017.11.6
Spin-crossover molecular switches [FeII(H2B(pz)2)2L] (L = novel phenanthroline-based ligands featuring photochromic diarylethene units; pz = 1-pyrazolyl) were synthesized and thoroughly characterized by variable-temperature X-ray crystallography, Mössbauer spectroscopy, and magnetic measurements. The effect of substituents introduced into the phenanthroline backbone (L2) and into the photochromic diarylethene
合成了自旋交叉分子开关[Fe II(H 2 B(pz)2)2 L ](L =具有光致变色二芳基乙烯单元的新型基于菲咯啉的配体; pz = 1-吡唑基),并通过可变温度X-射线晶体学,穆斯堡尔光谱法和磁测量。引入菲咯啉主链(L2)和光致变色二芳基乙烯单元(L3)的取代基对无金属配体和自旋交叉铁(II)配合物2和3的光物理性质的影响分别进行了详细调查。在室温下,溶液中的配体和配合物都可以在光线下转换。2的光环化伴随着高旋转到低旋转的光转换,确定为19%。L3和3的闭环异构体的寿命在数分钟范围内,而L2和2的闭环异构体的寿命在数分钟范围内。在室温下在溶液中可保持数天的热稳定性。通过避免光稳态,可以改善光开关的可逆性。向菲咯啉主链上引入锚定基团可能会允许构建自旋交联物种的化学吸附自组装单分子层,该单分子层可在室温下用光切换。