نتایج جستجو برای: π conjugated molecules
تعداد نتایج: 248732 فیلتر نتایج به سال:
a number of redox-active coordination polymers (cps) or metal-organic frameworks (mofs) have been successfully synthesized using transition metals and bridging ligands. this article aims to deal with gathering the aforementioned disperse issues regarding the electroactive cps. it also goes towards illustrating the effects of various factors on the electrochemical behavior of cps including natur...
Recent synthesis of a new type polymers containing conjugated cycloparaphenylene (CPP) macrocycles interconnected by linear backbone opens up fantastic potential cyclic π-conjugated materials in organic...
The new approach uses classical HMO calculation for the determination of bond orders, partial charges and bond energies in π-conjugated components. Furthermore, 2dimensional Hückel problems are formulated and solved for isolated σand π-bonds. Assuming no charge interaction between σand π-orbitals, all non-conjugated parts of the considered molecule are iteratively allowed for charge transfer ac...
There is a high degree of interest in organic thin films for lightweight, low power, rugged and flexible electronics. Conjugated organic molecules with polycyclic rings are being considered a major enabler of such applications. Due to a surface tension mismatch between the organic molecule with the inorganic support (mainly silicon oxides), molecular packing inside these thin films is often dis...
Guidelines to predict trends in the electrical conductance of molecules have been developed for the π-system of conjugated systems. Little is known, however, about the conductance of the underlying σ-systems because the π-system usually dominates the transport. Here we study a family of bipyridine-based molecules using STM-break junction experiments and density functional theory transport calcu...
A number of redox-active coordination polymers (CPs) or metal- organic frameworks (MOFs) have been successfully synthesized using transition metals and bridging ligands. This article aims to deal with gathering the aforementioned disperse issues regarding the electroactive CPs. It also goes towards illustrating the effects of various factors on the electrochemical behavior of CPs including...
The development of new conjugated organic materials for dyes, sensors, imaging, and flexible light emitting diodes, field-effect transistors, and photovoltaics has largely relied upon assembling π-conjugated molecules and polymers from a limited number of building blocks. The use of the dithiolodithiole heterocycle as a conjugated building block for organic materials is described. The resulting...
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