在此,报道了两种亚乙基二酰亚胺衍生物的合成和研究,所述亚乙基二酰亚胺衍生物具有以钾盐形式附加到二酰亚胺氮原子上的亚乙基磺酸基团(NDI1)和亚甲基羧酸基团(NDI2)。合成的化合物通过1 H NMR,13 C NMR和元素分析进行表征。在带有钾阳极的半电池中评估二酰亚胺的电化学性能。两种材料在C / 10电流速率下的第一个循环中均显示出体面的比容量86-96 mAh g -1,结合平均电池放电电势接近2.2V。所得结果表明,合成材料可被视为廉价的电极材料用于为固定式能量存储应用设计的钾电池。
Disclosed is the use of the compounds of formula
wherein
R1 and R2 independently of each other are hydrogen; C1-C28alkyl, C2-C28alkenyl, C2-C22alkinyl, C3-C12cycloalkyl, C3-C12cycloalkenyl, C7-C28aralkyl, C1-C20heteroalkyl, C3-C12cycloheteroalkyl, C5-C16heteroaralkyl, which are substituted by one or more groups of Z and/or interrupted by -O-; -NR6-; or CO-R5;
with the proviso that R1 and R2 are not simultaneously hydrogen;
Z is COO(M)m *-SO3(M)m; or *-SO2NR6R7;
M is hydrogen; or a cation;
m is 1; 0.5; or ⅓;
R3 and R4, independently from each other are C1-C28alkyl; C2-C28 alkenyl; C2-C28alkinyl; C3-C12cydoalkyl; C3-C12cycloalkenyl; C7-C20aralkyl; C2-C28alkoxy; or OH;
R5, R6 and R7 independently from each other are hydrogen; C1-C28alkyl; hydroxyl-C1-C28alkyl; C2-C28alkenyl; C2-C28alkinyl; C3-C12cycloalkyl; C3-C12cycloalkenyl; C7-C20aralkyl; C2-C28 alkoxy; or OH; and
n1 and n2, independently from each other are0; 1; or 2;
for protecting human and animal hair and skin from UV radiation.
The compounds of formula (1) represent useful watersoluble broad-band UV filters which cover the whole UV light range from about 290 to 380 nm.
Utilizing metal–ligand binding as the driving force, a unique photochromic hydrogel cross-linked by metal ions and π-acidic naphthalenebisimidedyes was obtained by simply mixing a two-phase solution. The mechanism of the coordination-driven self-assembly is elucidated by the morphological, XRD, FT-IR, ESR, UV-Vis and TGA studies and the controlled experiments.
Lone pair-π interaction-induced generation of photochromic coordination networks with photoswitchable conductance
作者:Jian-Zhen Liao、Jian-Fei Chang、Lingyi Meng、Hai-Long Zhang、Sa-Sa Wang、Can-Zhong Lu
DOI:10.1039/c7cc05150f
日期:——
Lone pair-π interaction-induced variation of the degree of charge-transfer was successfully used for switching the conductance of a photochromic coordination network.
孤对电子-π相互作用引起的电荷转移程度变化成功地用于切换光致变色配位网络的电导。
Structural characterization and photochromic behaviour of a novel compound based on a π-acidic naphthalene diimide derivative and a double hydroxide-bridged dinuclear Al<sup>III</sup> aqua ion cluster
作者:Hua Ke、Jian-Zhen Liao、Can-Zhong Lu
DOI:10.1107/s2053229619009872
日期:2019.8.1
diimide and Al(NO3)3·9H2O under mixed solvothermal conditions, and was characterized in detail by single‐crystalX‐ray diffraction, powderX‐ray diffraction and FT–IR spectroscopy. The thermal stability and photochromic properties were also investigated; furthermore, in‐situ solid‐state UV–Vis absorption spectroscopy and electron spin resonance (ESR) were used to clarify the photochromic mechanism.
非共价相互作用,例如π–π堆积相互作用,CH–H…π相互作用和氢键,是功能性超分子和材料(尤其是多组分超分子系统)构造中自组装的重要驱动力。在本文中,基于一个π酸性萘二酰亚胺衍生物的新型化合物和双氢氧化物桥接双核的Al 3+ AQUA离子簇,即双[ Ñ,Ñ ' -双(2- sulfonatoethyl)-1,4,5,8-萘二酰亚胺]二水合双[四水合铝(III)]四水合物,(C 18 H 12 N 2 O 10 S 2)2 [Al 2(OH)2(H2 O)8 ]·4H 2 O是使用上述常见的非共价相互作用以及罕见的孤对-π相互作用获得的。这些非共价相互作用将功能性分子模块连接起来,从而产生明显的光致变色特性。该化合物是在混合溶剂热条件下通过自组装N,N'-双(2-磺乙基)-1,4,5,8-萘二酰亚胺和Al(NO 3)3 ·9H 2 O制备的。通过单晶X射线衍射,粉末X射线衍射和FT-IR光谱
Radical-Doped Crystalline Lanthanide-Based Photochromic Complexes: Self-Assembly Driven by Multiple Interactions and Photoswitchable Luminescence
lanthanide-based [Ln = Nd(III) (1), Sm(III) (2), Eu(III) (3), Gd(III) (4), Tb(III) (5), Yb(III) (6), and Lu(III) (7)] crystalline complexes were attained by simply adding the aqueous lanthanide nitrate solution to the water-soluble naphthalenediimide derivative. The obtained lanthanide-based crystalline materials not only show significant photochromism but also possess reactive organic radicals under ambient conditions