The unexpectedly challenging synthesis of 4-pyridyl-extended dithieno[3,2-b:2′,3′-d]phospholes via Stille cross-coupling is reported. The optical and electrochemical properties of the phosphoryl-bridged species were studied experimentally and computationally, and their properties were compared with those of their non-P-bridged congeners. The 4-pyridyl-extended dithienophospholes display quantitative
据报道,通过Stille交叉偶联合成了4-吡啶基延伸的双噻吩并[3,2- b:2',3'- d ]磷脂。通过实验和计算研究了磷酰基桥联物种的光学和电化学性质,并将其性质与非P桥联同类物的性质进行了比较。吡啶环甲基化后,4-吡啶基-延伸的二硫代磷腈在溶液中显示定量的发光量子产率,并且具有可逆的还原特征。由于它们具有很高的亮度,即使在水中也是如此,4-吡啶基延伸的二噻吩并磷光体是新型荧光探针的极有希望的候选者。
Halochromic generation of white light emission using a single dithienophosphole luminophore
作者:Huy V. Huynh、Xiaoming He、Thomas Baumgartner
DOI:10.1039/c3cc41510d
日期:——
A new dithienophosphole-based donor–acceptor conjugated luminophore shows a large halochromic effect on its emission color that changes from red to green upon addition of acid. White light emission can be generated upon partial protonation resulting in a broad emission band.
synthesis and advanced characterization, as well as the complexation behavior of a series of terpyridinyl-ethynyl substituted dithieno[3,2-b:2′,3′-d]phospholes is reported. The functionalization of the dithienophosphole core furnishes the system with suitable ligand properties for a variety of transition metal centers (Zn2+, Ru2+, Pt2+) to form the corresponding complexes. The terpyridinyl-extended ligand
一系列的合成,高级表征以及络合行为 吡啶基-乙炔基报道了取代的二噻吩并[3,2- b:2',3'- d ]磷脂。的功能化二硫代磷烯 核心为系统提供了适合各种过渡金属中心的配体特性(锌2+, 茹2+, 铂2+),以形成相应的复合体。吡啶基延伸的配体系统显示出显着的光致发光特征,这有利于形成强发光的过渡金属络合物,这些络合物可能用于有机发光电化学电池中。理论计算支持涉及扩展的π共轭骨架的π–π *跃迁产生的配体的强发光。发现该配体对质子表现出显着的发光稳定性,而与过渡金属的络合则显示出光物理性质的明显变化,这取决于所采用的过渡金属的性质。
Dithienophosphole-capped π-conjugated oligomers
作者:Stefan Durben、Thomas Linder、Thomas Baumgartner
DOI:10.1039/c0nj00026d
日期:——
The synthesis of a 2-monobrominated dithieno[3,2-b:2′,3′-d]phosphole has opened the access to a series of highly luminescent π-conjugated oligomers that link two dithienophosphole units via a variety of aromatic spacers. The nature of the linking mode was found to have a significant impact on the photophysicalproperties of the system as a whole, either considerably improving the molar absorptivity
2-单溴代双噻吩并[3,2- b:2',3'- d ]磷的合成为一系列连接两个原子的高发光度π-共轭低聚物打开了大门。二硫代磷烯单元通过各种芳香族间隔基。发现连接模式的性质对整个系统的光物理性能有重大影响,或者大大改善了新的扩展发色团的摩尔吸收率,或者提供了具有红移发射特征和大量光致发光量子的发光材料。产量。
Synthesis and unexpected halochromism of carbazole-functionalized dithienophospholes
作者:Monika Stolar、Thomas Baumgartner
DOI:10.1039/c2nj40022g
日期:——
π-conjugated donor–acceptor (D/A) chromophores using dithieno[3,2-b:2′,3′-d]phosphole oxide as an acceptor and 3,6-carbazole as a donor component have been synthesized and characterized. The studies involved several molecular species with D–A, A–D–A, D–A–D architecture, as well as a polymeric species (D–A)n. The different photophysicalproperties of the systems can be attributed to the carbazole unit
合成了一系列以二噻吩并[3,2- b:2',3'- d ]氧化磷作为受体和3,6-咔唑作为供体组分的π共轭供体-受体(D / A)发色团。和特点。研究涉及几种具有D–A,A–D–A,D–A–D结构的分子种类以及聚合物种类(D–A)n。该系统的不同光物理性质可以归因于咔唑单元事实上充当π-共轭系统的苯胺类。用酸处理施主-受主材料会导致吸收和发射波长发生明显的红移,并且发现该过程是可逆的。调查通过 密度泛函理论(DFT)的计算揭示了质子化过程中意外的红移的性质。