等网状化学稳定的二维亚胺共价有机骨架 (COF),进一步表示为 DUT-175 和 DUT-176,是在 4,4'-双(9 H-咔唑-9-基)联苯四醛与苯二胺和联苯胺。从粉末 X 射线衍射数据中解析和细化并通过高分辨率透射电子显微镜确认的晶体结构表明 AA 堆叠层结构。两种结构都具有扭曲的六边形通道孔,确保了显着的孔隙率(DUT-175 的S BET = 1071 m 2 g –1和S BET = 1062 m 2 g –1用于 DUT-176),如气体和蒸汽的吸附所证实。COFs的复杂共轭π体系涉及富含电子的咔唑构建单元,其与亚胺基团结合允许框架的可逆pH依赖性质子化,伴随着电荷转移和紫外-可见光谱中吸收带的移动。水蒸气吸附和解吸等温线的 S 形形状,在p / p 0 = 0.4-0.6 处具有陡峭的吸附步骤,再加上在数十次吸附和解吸循环中的出色稳定性,这些 COF 是室内湿度控制应用的最佳材料之一。
幻蓝(MB + ˙ SbCl 6 −盐),即三-4-溴苯基铵阳离子自由基,是一种常规使用的单电子氧化剂,在储存时在固态下缓慢分解,形成所谓的“蓝兄弟”,这通常使情况复杂化氧化过程的定量分析。在此,我们通过结合 DFT 和实验方法,包括分离TAB + ˙ SbCl 6 −及其X 射线晶体学表征。老化的幻蓝样品中TAB的形成是通过一对MB的 Scholl 型偶联以及随后分子溴的损失而发生的。对这一事实的认识导致我们合理设计和合成了三(2-溴-4-叔丁基苯基)胺,被称为“布鲁斯表弟”( BC : E ox1 = 0.78 V vs. Fc/Fc +,λ max ( BC + ˙ ) = 805 nm, ε max = 9930 cm -1 M -1 ),通过将空间要求较高的叔丁基置于芳环的对位,其氧化二聚作用受到显着阻碍。由三苯胺两步合成BC及其阳离子自由基 ( BC + ˙ ) 的高稳定性保证
When the solvent exists in the liquid form inside the MOF pore, it retains the pristine NTE nature of the bare framework. But freezing of the solvent inside the pores induces the strain, which causes a structural transformation through in-plane bending of the linker and this squeezes the framework by ∼10% of the unit cell volume. This effect has been verified using 3 different solvents where the structural
A highly porous metal-organic framework Cu(2)(BBCDC) (BBCDC = 9,9'-([1,1'-b[combining low line]iphenyl]-4,4'-diyl)b[combining low line]is(9H-c[combining low line]arbazole-3,6-d[combining low line]ic[combining low line]arboxylate) (DUT-49) with a specific surface area of 5476 m(2) g(-1), a pore volume of 2.91 cm(3) g(-1), a H(2) excess uptake of 80 mg g(-1) (77 K, 50 bar), a CO(2) excess uptake of 2
ORGANIC ELECTROLUMINESCENT DEVICE AND BORIC ACID AND BORINIC ACID DERIVATIVES USED THEREIN
申请人:Merck Patent GmbH
公开号:US20150322091A1
公开(公告)日:2015-11-12
The present invention relates to the use of aromatic boronic acid or borinic acid derivatives in organic electronic devices, in particular electroluminescent devices.
Phosphorescent compositions and organic light emitting devices containing therm
申请人:Maxted Neil
公开号:US20060083943A1
公开(公告)日:2006-04-20
Compositions of a mixture of (A) a polymerisable compound, which undergoes polymerisation on exposure to heat or to actinic radiation, having the general formula
wherein Q is an organic charge transporting fragment, L is a linker group, X is a group capable of undergoing free radical or anionic polymerisation on exposure to heat or actinic radiation, m is 0 or 1, and n is an integer having a value of 2 or more; and (B) a phosphorescent material are described, as is an organic light-emitting diode (OLED) device comprising at least one emissive layer that has been formed by polymerising such a composition. A method for forming an OLED, including depositing a layer containing the polymerisable composition from solution and exposing the layer to heat or actinic radiation to induce polymerisation, is also disclosed.