22653-07-2Relevant articles and documents
Compounds using fluorene as core, preparation method of compounds and application of compounds in organic light emission diode device
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Paragraph 0085-0090, (2019/10/07)
The invention relates to organic compounds using fluorene as a core, a preparation method of the compounds and an application of the compounds in an organic light emission diode (OLED) device. The compounds have a following structure: the fluorene is connected with a dibenzo five-membered ring and ring structure through a carbon-carbon bond, the carbon-carbon bond connection not only improves the chemical stability of the material, but also avoids exposure of active positions of a branched chain group, and the whole molecule is a larger rigid structure and has a higher triplet state energy level (T1); the compounds have large steric hindrance, are not easy to rotate, and have a more stable stereoscopic space structure, so that the compounds have a higher glass transition temperature and molecular thermal stability; in addition, HOMO and LUMO distribution positions of the compounds are separated from each other, so that the compounds have suitable HOMO and LUMO energy levels; therefore, the compounds can effectively improve the luminous efficiency and the service life of the device after being applied to the OLED device.
Organic compound with fluorene as nucleus and application of same to OLED device
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Paragraph 0046; 0042; 0043; 0054, (2017/12/06)
The invention relates to an organic compound with fluorene as a nucleus and application of the same to an OLED device. The compound is such structured that fluorine is connected with a benzo six-membered ring via a C-C bond; connection via the C-C bond is beneficial for improving the chemical stability of the compound and preventing active positions of branched groups from exposure; the whole molecule is of a large rigid structure, has a high triplet-state energy level (T1) and is large in steric hindrance and not prone to rotation, so the three-dimensional spatial structure of the compound is more stable; and thus, the compound has a high glass transition temperature and molecular heat stability. Moreover, the HOMO and LUMO of the compound are distributed at different positions, so the compound has appropriate HOMO and LUMO energy levels. Thus, the compound can effectively improve the luminescence efficiency and service life of the OLED device when applied to the device.
Versatile and Convenient Lattice Hosts derived from Singly Bridged Triarylmethane Frameworks, X-Ray Crystal Structures of Three Inclusion Compounds
Weber, Edwin,Doerpinghaus, Norbert,Csoeregh, Ingeborg
, p. 2167 - 2177 (2007/10/02)
A new family of host molecules, based on the singly bridged triarylmethanol and triarylacetic acid frameworks, is described.These hosts form crystalline inclusions with a variety of uncharged organic molecules ranging from protic dipolar to apolar compounds (130 different species).The formation and stoicheiometry depend in a systematic manner on structural parameters of the host, such as the nature of the functional group and the substituents, and on the substituent positions.The crystal structures of three inclusion compounds have been studied by X-ray diffraction.They reveal the building principles of the new inclusion family.In the crystals of 1a*benzene (8:3), the benzene is interstitially entrapped by H-bonded tetramer clusters of 1a.Crystals of 1a*dioxane (4:3) are built of H-bonded 2:1 host-guest complexes including interstitial molecules of dioxane.In the case of 4c*EtOH (1:1), the building principle is formation of 2:2 host-guest clusters via a twelve-membered H-bonded ring.
