873792-52-0

Usage

Uses

Used in Organic Synthesis:
1,1'-Biphenyl, 5,5'-dibromo-2,2'-diiodois utilized as a reagent in organic synthesis for a variety of chemical reactions. Its presence can influence the course of reactions and the formation of desired products, making it a versatile component in the synthesis of complex organic molecules.
Used in Material Science:
In the field of material science, 1,1'-Biphenyl, 5,5'-dibromo-2,2'-diiodois recognized for its potential use in liquid crystals and liquid crystal display (LCD) technologies. The unique arrangement of its halogen atoms contributes to the compound's properties that are beneficial for the development of advanced display technologies.
Used in Pharmaceutical and Medicinal Chemistry Research:
Due to its halogenated structure, 1,1'-Biphenyl, 5,5'-dibromo-2,2'-diiodois also employed in research and development for the study of halogen bonding. This research is crucial for understanding and exploiting the potential applications of halogen bonding in the design and synthesis of pharmaceuticals and medicinal compounds.
Used in the Study of Halogen Bonding:
1,1'-Biphenyl, 5,5'-dibromo-2,2'-diiodoserves as a model compound for investigating the nature and applications of halogen bonding. This knowledge can be applied to develop new materials and compounds with improved properties, which can be beneficial across various industries, including pharmaceuticals, materials science, and chemical engineering.

Upstream product

• 96042-30-7 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran 
• 2236-52-4 2,2'-diiodobiphenyl 
• 583-53-9 2,3-dibromobenzene 
• 13029-09-9 2,2'-dibromobiphenyl 
• 63007-59-0 N,N'-(5,5'-dibromobiphenyl-2,2'-diyl)biacetamide 
• 29325-49-3 1,1′-biphenyl-2,2′-diamine acetamide 
• 1454-80-4 1,1'-biphenyl-2,2'-diamine 
• 2436-96-6 1-nitro-2-(2-nitrophenyl)benzene 
• 92576-87-9 5,5′-dibromo-[1,1′-biphenyl]-2,2′-diamine 

Downstream Products

• 1247868-03-6 2,8-dibromo-5-phenylbenzo[b]phosphindole 5-oxide 

Relevant academic research and scientific papers

Silafluorene as a promising core for cell-permeant, highly bright and two-photon excitable fluorescent probes for live-cell imaging

In this study, we report the synthesis, linear and non-linear photophysical studies and live-cell imaging of two two-photon activatable probes based on a silafluorene core: SiFluo-V and SiFluo-L. Thanks to their quadrupolar (A-π-D-π-A) design, these probes exhibit respectively good to impressive two-photon cross-sections (from 210 GM to 2150 GM). TD-DFT calculations support the experimental evidence that SiFluo-L displays far better two-photon absorption properties than SiFluo-V. Moreover, SiFluo-L possesses all requirements for bioimaging as it is water soluble, cell-permeant and presents a low cytotoxicity (IC80 ≥ 10 μM). It labels mitochondria in live-cell imaging at low laser power with high brightness, contrast and photostability. This study demonstrates that silafluorene is a promising core to develop new two-photon fluorophores for live-cell imaging.

Blue light-green light thermal delay fluorescent material based on rigid phosphine oxide group

A blue light-green light thermal delay fluorescent material based on a rigid oxygen phosphine group has a structure shown as formula (I) as shown in the specification; the blue light-green light thermal active delay fluorescent (TADF) material based on the rigid oxygen phosphine group has very good color purity of blue light or green light, very high light emitting quantum efficiency and charge injection/transmission performance, and is suitable for being used as a luminescent material to prepare high-performance organic electroluminescent devicea; in addition, and the blue light material alsohas a very high excited state energy level, can be used as a main material for preparing the high-performance organic electroluminescent devices.

Photophysical properties and optical power limiting ability of Pt(II) polyynes bearing fluorene-type ligands with ethynyl units at different positions

Two series of Pt(II) polyynes bearing fluorene-type ligands with ethynyl units at different positions have been synthesized. In the absorption spectra, the Pt(II) polyynes bearing fluorene-type ligands with ethynyl units at 3,6-position have blue-shift with respect to the corresponding analogs bearing fluorene-type ligands with ethynyl units at 2,7-position, showing better transparency in the visible light region. Moreover, the Pt(II) polyynes bearing fluorene-type ligands with ethynyl units at 3,6-position show stronger triplet emission than corresponding analogs bearing fluorene-type ligands with ethynyl units at 2,7-position in the photoluminescent (PL) spectra. Furthermore, these Pt(II) polyynes were applied to optical power limiting (OPL) field. The Pt(II) polyynes bearing fluorene-type ligands with ethynyl units at 2,7-position show better OPL performance than the corresponding analogs with fluorene-type ligands of ethynyl units at 3,6-position. Therefore, changing the position of the ethynyl units in fluorene-type ligands can not only effectively control the photophysical properties of the Pt(II) polyynes, but also has an important effect on their OPL ability.

CYCLIC GERMANIUM COMPOUNDS AND APPLICATIONS THEREOF

The present disclosure provides a new series of compounds exhibiting high fluorescence quantum yields in the solid state. In one embodiment, the compounds include a series of 2,3,4,5-tetraphenylgermoles with the same or different 1,1-substituents. In anot

Design and synthesis of novel ROR inverse agonists with a dibenzosilole scaffold as a hydrophobic core structure

Abstract Molecular structure calculations indicated that the dibenzosilole skeleton could be well superposed on phenanthridinone, which is a structural component of ligands of retinoic acid receptor-related orphan receptors (RORs). Therefore, we designed,

The tuning of the energy levels of dibenzosilole copolymers and applications in organic electronics

An understanding of the structure-function relationships of conjugated polymers is an invaluable resource for the successful design of new materials for use in organic electronics. To this end, we report the synthesis, characterisation and optoelectronic properties of a range of new alternating copolymers of dibenzosilole. Suzuki polycondensation reactions were used to afford a series of eight conjugated materials by the respective combination of either a 3,6- or 2,7-linked 9,9-dioctyldibenzosilole with 3,6-linked-N- octylcarbazole, triarylamine, oxadiazole and triazole monomers. The copolymers were fully characterised using 1H, 13C{1H} NMR spectroscopy, size exclusion chromatography (SEC), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The photophysical properties were determined using UV-Vis spectroscopy, photoluminescence (PL) measurements, cyclic voltammetry (CV) and photoelectron emission spectroscopy in air (PESA). The spectroscopic and electrochemical measurements were used to determine the materials' HOMO and LUMO energies and the values were correlated with the copolymer composition and structure. A selection of the copolymers (P4, P5 and P8) were evaluated as the active layer within single-layer polymer light emitting diodes (PLEDs), with the configuration: glass/ITO/PEDOT:PSS/emissive layer/Ba/Al, which gave low intensity electroluminescence. The selected copolymers were also evaluated as the organic semiconductor in bottom-gate, bottom-contact organic field effect transistors (OFETs). The best performing devices gave a maximum mobility of 3 × 10-4 cm2 V-1 s-1 and on/off current ratios of 105. The Royal Society of Chemistry 2011.

LIGHT-EMISSION MATERIAL AND ORGANIC LIGHT-EMITTING DIODE INCLUDING THE SAME

The invention provides a light-emission material comprising a compound having Formula (I): , wherein each of A independently is: each of Rm independently is H, alkyl, alkenyl, alkynyl, CN, CF3, alkylamino, amino, alkoxy, halo, aryl, or heteroaryl.

Poly(3,6-silafluorene-co-2,7-fluorene)-based high-efficiency and color-pure blue light-emitting polymers with extremely narrow band-width and high spectral stability

A new series of copolymers (PSiFF) based on 3,6-silafluorene and 2,7-fluorene were synthesized via the Suzuki polycondensation. The influences of the 3,6-silafluorene content in the copolymers on the thermal, photophysical, electroluminescence and electrochemical properties were investigated. The incorporation of 3,6-silafluorene into the polyfluorene main chain not only suppressed the long-wavelength emission but significantly improved the efficiency and color purity of the copolymer-based devices. Both fluorene and 3,6-silafluorene took part in π-conjugation of the main chain and the electroluminescence spectra were remarkably blue-shifted with increasing wide bandgap 3,6-silafluorene content. The device based on PSiFF90 with the configuration of ITO/PEDOT: PSS/PVK/polymer/Ba/Al showed a quantum efficiency of 3.34% and a luminous efficiency of 2.02 cd A-1 at a brightness of 326 cd m-2 with CIE 1931 chromaticity coordinates of (0.16, 0.07), which almost match the NTSC standard blue pixel coordinates of (0.14, 0.08). Moreover, the incorporation of 3,6-silafluorene into the polyfluorene main chain significantly improved the spectral stability at annealing. The results indicate poly(3,6-silafluorene-co-2,7-fluorene) could be a promising candidate for blue-emitting polymers of high efficiency and good color purity. The Royal Society of Chemistry 2006.

Poly(9,9-dialkyl-3,6-dibenzosilole) - A high energy gap host for phosphorescent light emitting devices

The preparation of the 3,6-disubstituted dibenzosilole monomers 4, 5 and 10 by two different routes is described; Suzuki copolymerisation afforded poly(9,9-dioctyl-3,6-dibenzosilole) 11 which has a sufficiently high triplet energy (2.55 eV) to function as a host for green electrophosphorescent emitters. The Royal Society of Chemistry 2005.