This work describes the syntheses, crystal structures, photophysical properties, and electro‐chemical analyses of benzo[k]fluoranthene‐based linear acenes, together with ab initio density functional theory computations on them. The molecules were prepared in generally moderate to good yields through Pd‐catalyzed cycloadditions between 1,8‐diethynylnaphthalene derivatives and aryl iodides. This protocol
这项工作描述了基于苯并[ k ]荧蒽的线性并苯的合成,晶体结构,光物理性质和电化学分析,以及从头开始的密度泛函理论计算。通过在1,8-二乙炔基萘衍生物和芳基碘化物之间进行Pd催化的环加成反应,通常可以以中等到良好的产率制备这些分子。该协议比常规方法更简单,更有效。检查了该反应的范围和局限性。化合物4 hb,15 ac,17 ab,19 ac和24 je的结构通过X射线分析确定; 它们是弯曲的还是扭曲的,而不是平面的。还研究了这些环加合物的光物理和电化学性质,并将其与基于密度泛函理论的计算预测进行了比较。
Synthesis and Crystal Structure of Dimorphic Dibenzo[
<i>cde</i>
,
<i>opq</i>
]rubicene
作者:Joghee R. Suresh、Glenn Whitener、Gabriele Theumer、Dirk J. Bröcher、Ingmar Bauer、Werner Massa、Hans‐Joachim Knölker
DOI:10.1002/chem.201902915
日期:2019.10.28
Dibenzo[cde,opq]rubicene has been synthesized by an eight-step reaction sequence including an iron-mediated [2+2+1] cycloaddition and a flash vacuum pyrolysis as key steps. Two crystal modifications of the S-shaped, planar polycyclic aromatic hydrocarbon have been obtained and characterized by X-ray diffractometry.
A simple and robustmicrofluidicdevice was developed to synthesize organometallicpolymers with highlyorganizedstructures. The device is compatible with organic solvents. Reactants are loaded into pairs of reservoirs connected by a 15 cm long microchannel prefilled with solvents, thus allowing long‐term counter diffusion for self‐assembly of organometallicpolymers. The process can be monitored
Assembly of organosilver coordination frameworks with polycyclic benzenoid aromatic ethynide ligands
作者:Sam C.K. Hau、Thomas C.W. Mak
DOI:10.1016/j.jorganchem.2015.03.013
日期:2015.9
condensed-ring benzenoid aromatics, the terminal ethynide group is invariably inserted into an argentophilic Agn (n = 4–5) basket, leading to the generation of coordination chains or multinuclear metallocycles via silver–aromatic interaction and strong face-to-face aromatic π–π stacking interaction. The coordination preferences of the ethynide ligand with respect to the size of the aromaticnucleus proved to be
The attempted synthesis of a dinaphth-1,6-bisdehydro[10]annulene
作者:R.H. Mitchell、F. Sondheimer
DOI:10.1016/s0040-4020(01)92792-9
日期:1970.1
Attempts to prepare the dinaphth-1,6-bisdehydro[10]annulene 3 are described. 1-Ethynyl-8-(1′-iodo-8′-naphthylethynyl)naphthalene (13) was prepared in several steps from 1,8-diethynylnaphthalene (6), making use of the trimethylsilyl protecting group. The cuprous derivative of 13 on treatment with pyridine gave zethrene (9) and 7-iodozethrene (25), instead of 3. Zethrene (9) was also obtained from the