SKU: 57499168419

SFX-2,7-DDPA

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Description

SFX-2,7-DDPAProduct Name NameSFX 2,7 DDPA Product Overview Spiroaromatic hydrocarbons are an important organic semiconductor construction unit. Their unique non planar spiroconjugation, cross conformation and steric hindrance effects can effectively improve the photoelectric properties and device stability of organic semiconductor materials. Spirofluorene xanthrene (SFX) one pan preparation method due to its advantages of three bonds, high efficiency and fast,

Product Name

Name:SFX-2,7-DDPA

Product Overview

Spiroaromatic hydrocarbons are an important organic semiconductor construction unit. Their unique non-planar spiroconjugation, cross conformation and steric hindrance effects can effectively improve the photoelectric properties and device stability of organic semiconductor materials. Spirofluorene xanthrene (SFX) one-pan preparation method due to its advantages of three bonds, high efficiency and fast, overcome the problems of lengthy synthesis route and expensive raw materials, and become a new generation of steric resistance construction unit, which has been widely used in frontier fields such as organic luminescence, organic laser, field effect transistor, perovskite solar cells, etc. It has become a model of green organic semiconductors. Due to the connection of spirofluorene and oxanthracene, the conjugated system of the entire molecule is extended, and the electrons can delocalize in a larger range, which has an important impact on its optical and electrical properties. Spirofluorenoxanthracene molecule has certain steric hindrance. The helical structure of spirofluorene and the large volume of oxanthracene make the molecules exhibit a specific arrangement in space. This steric hindrance affects the interactions between molecules and the way materials are stacked. For example, in crystal structures, molecules may adopt specific orientations that affect properties such as optical anisotropy of the material.

Technical Parameter

C:.5mg/ml

Solvent:Water

Appearance:Colourless liquid

Product Features

Optical properties: It has unique luminous characteristics. Due to its extended conjugated system, its absorption and emission spectra differ from those of spirofluorene or oxanthrene alone. Generally, it has a strong absorption in the ultraviolet to visible region, and the emission spectrum covers a certain range of visible wavelengths. For example, its emission wavelength may range from blue to yellow-green, depending on factors such as the structure of the molecule and substituents.

The fluorescence quantum yield is relatively high. Compared with some common organic luminescent materials, the fluorescence quantum yield of spirofluorexanthrene can reach a higher level, which makes it have a potential application in the field of luminescence. For example, in some cases, its fluorescence quantum yield can exceed 30%, which can effectively convert absorbed energy into light energy emitted.

Electrical properties: As an organic semiconductor material, spirofluorenoxanthrene has a certain carrier transport capacity. Conjugated systems in its molecular structure contribute to the transport of electrons and holes. Electrical properties such as carrier mobility can be adjusted through appropriate molecular design and material treatment. For example, by introducing suitable substituents to improve the packing mode of molecules and charge transport channels, the carrier mobility is increased. The energy band structure can also be regulated. The band gap can be adjusted by chemical modification, such as changing the type and position of substituents. This is very important for its application in different optoelectronic devices, enabling it to adapt to different operating conditions and performance requirements.

Application Fields

Organic light-emitting diode (OLED) : Because of its good luminous performance, spirofluorexanthrene can be used as the luminous material of OLED. It can be used in the light-emitting layer of OLeds by doping or as the main material.

Organic field effect transistor (OFET) : As an organic semiconductor material, spirofluorexanthrene can be used to prepare the active layer of OFET. The properties of OFET, such as carrier mobility and switching ratio, can be improved by optimizing its molecular structure and film preparation process.

Bioimaging and sensing: The fluorescence properties of spirofluorexanthrene make it potentially useful in bioimaging and sensing. It can be used as a fluorescent probe to label biomolecules or cells, and observe physiological and pathological processes in organisms through fluorescence imaging technology.

Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected]

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SKU: 57499168419

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S. Ramsey
Los Angeles, US
★★★★★ 5
Great Stand!
Color: Black - Fluted
Awesome stand for the umbrella. Works well. Has kept the umbrella in place.
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Reviewed in the United States on April 22, 2026
A
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Andy Rodriguez
Omaha, US
★★★★★ 5
Sturdy, Reliable, and Visually Pleasing - A Must-Have Patio Accessory!
I recently purchased the Best Choice Products 55lb Capacity Fillable Umbrella Base Stand for my backyard patio, and I have to say, I'm absolutely thrilled with this purchase. This umbrella stand has quickly become a reliable and crucial part of our outdoor setup. To start off, the assembly was straightforward and didn't take up much time. The instructions were clear, easy to understand, and within minutes we were able to get it set up. No additional tools or complex steps were necessary, which was a great relief as I'm not exactly a DIY person. I filled it with sand, which brought it to its maximum capacity of 55lbs, and the stability it provides is exceptional. We've had several windy days since I've purchased the stand, and not once has my patio umbrella tilted or tipped. The 2 adjustment knobs on the sides help to secure the umbrella pole firmly, which provides an additional layer of stability. The stand's faux wicker design is another aspect I absolutely love. It beautifully complements my other patio furniture and adds a touch of sophistication to my outdoor decor. The plastic used for the stand is of high quality and convincingly mimics the look of real wicker without the associated maintenance or weathering concerns. Being a round base, it conveniently fits in our patio corner without taking up too much space. Moreover, it's been outside in various weather conditions - from intense sun to rain showers - and it hasn't shown any signs of wear or color fading. The material seems durable and capable of withstanding different weather patterns, which is exactly what I needed. Also, despite being sturdy and heavy when filled, the base is easy to move around when empty. This makes it convenient to store away during the winter or rearrange when we want to change up our patio layout.
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Reviewed in the United States on May 22, 2023
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Brandi L Gannon
Houston, US
★★★★★ 5
Umbrella base
Color: Black - Sunburst
Great product!
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Reviewed in the United States on May 15, 2026
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The Andersons
Bozeman, US
★★★★★ 3
Good stand but has issues.
Color: Black - Sunburst
Very sturdy and looks good. But, the part that holds the umbrella is loose and requires a wedge to stop it spinning (I used a plastic knife). Also the screw on the bottom RUSTS and in a BIG way. To solve the rust issue I put an old plastic cutting board under it. We use it with the modifications mentioned.
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Reviewed in the United States on May 7, 2026
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Curtis S Gezotis
Lexington, US
★★★★★ 5
Durable, easy to set up
Color: Black - Sunburst
Works great, easy set up!
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Reviewed in the United States on May 6, 2026

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