18628-03-0

Basic information

• Product Name: 3,3’6,6’-tetrabromo-9,9'-bicarbazole
• Synonyms: 3,3’6,6’-tetrabromo-9,9'-bicarbazole
• CAS NO: 18628-03-0
• Molecular Weight: 647.989
• Mol File: 18628-03-0.mol

Chemical Properties

• CAS DataBase Reference: 3,3’6,6’-tetrabromo-9,9'-bicarbazole(CAS DataBase Reference)
• NIST Chemistry Reference: 3,3’6,6’-tetrabromo-9,9'-bicarbazole(18628-03-0)
• EPA Substance Registry System: 3,3’6,6’-tetrabromo-9,9'-bicarbazole(18628-03-0)

Safety Data

• Hazardous Substances Data: 18628-03-0(Hazardous Substances Data)

Upstream product

• 6825-20-3 3,6-dibromo-9H-carbazole 
• 1455-18-1 3-methylbenzothiophene 
• 86-74-8 9H-carbazole 

Downstream Products

• 86-74-8 9H-carbazole 

Relevant articles and documents

Ethylene/ethane separation in a stable hydrogen-bonded organic framework through a gating mechanism

Porous materials are very promising for the development of cost- and energy-efficient separation processes, such as for the purification of ethylene from ethylene/ethane mixture—an important but currently challenging industrial process. Here we report a microporous hydrogen-bonded organic framework that takes up ethylene with very good selectivity over ethane through a gating mechanism. The material consists of tetracyano-bicarbazole building blocks held together through intermolecular CN···H–C hydrogen bonding interactions, and forms as a threefold-interpenetrated framework with pores of suitable size for the selective capture of ethylene. The hydrogen-bonded organic framework exhibits a gating mechanism in which the threshold pressure required for guest uptake varies with the temperature. Ethylene/ethane separation is validated by breakthrough experiments with high purity of ethylene (99.1%) at 333 K. Hydrogen-bonded organic frameworks are usually not robust, yet this material was stable under harsh conditions, including exposure to strong acidity, basicity and a variety of highly polar solvents. [Figure not available: see fulltext.]

Bicarbazole-based redox-active covalent organic frameworks for ultrahigh-performance energy storage

A highly redox-active building block, bicarbazole, is developed as a monomer for designing crystalline porous covalent organic frameworks and is successfully integrated to the vertices of microporous tetragonal frameworks, leading to densely aligned redox-active arrays. The frameworks with large porosity and high accessibility of the redox-active sites exhibit synergistic structural effects and ultrahigh-performance energy storage.

A New Biscarbazole-Based Metal–Organic Framework for Efficient Host–Guest Energy Transfer

A new metal–organic framework (MOF), [Zn6L4(Me2NH2+)4?3 H2O] (1) was constructed based on [9, 9′-biscarbazole]-3, 3′, 6, 6′-tetracarboxylic acid (H4L) and Zn2+ ions. The porous framework and intense blue fluorescence of the MOF based on the biscarbazole moiety of the ligand could facilitate efficient host to guest energy transfer, which makes it an ideal platform for the tuning of luminescence.

Synthesis and reactivity of carbazole-containing hypervalent iodine(III) reagents

A range of bench-stable carbazole-containing hypervalent iodine(III) reagents were synthesized by I ? N bond formation in good yields. This kind of benziodoxolone reagents was used for a C[sbnd]N coupling reaction to introduce a carbazole group to aromatic heterocycle compounds.

A highly fluorescent covalent organic framework as a hydrogen chloride sensor: roles of Schiff base bonding and π-stacking

In this paper we report the extremely crystalline structures, high thermal stabilities, and strong fluorescence emissions of covalent organic frameworks (COFs) based on linked carbazole units. We have synthesized three stable luminescent carbazole-linked COFs, namely, BCTB-PD, BCTA-TP, and BCTB-BCTA, through Schiff base condensations of 4,4′,4′′,4′′′-([9,9′-bicarbazole]-3,3′,6,6′-tetrayl)tetrabenzaldehyde (BCTB-4CHO) with p-phenylenediamine (PD), of 4,4′,4′′,4′′′-([9,9′-bicarbazole]-3,3′,6,6′-tetrayl)tetraaniline (BCTA-4NH2) with terephthalaldehyde (TP), and of BCTB-4CHO with BCTA-4NH2, respectively. These COFs had large Brunauer-Emmett-Teller surface areas (up to 2212 m2 g-1) and outstanding thermal stabilities (decomposition temperatures of up to 566 °C). Interestingly, the intramolecular charge transfer (ICT) and fluorescence properties of these COFs were strongly influenced by their types of Schiff base bonding (BCTB-4CHN or BCTA-4NCH) and the degrees of π-stacking between their COF layers. For example, ICT from the electron-donating carbazole group to the acceptor through the Schiff base units of the type BCTB-4CHN and increasing the π-stacking distance enhanced the fluorescence emission from the COF. Moreover, BCTB-BCTA, the most fluorescent of our three COFs, functioned as a fluorescent chemosensor for HCl in solution, with outstanding sensitivity and a rapid response. This journal is

Direct Synthesis of Microporous Bicarbazole-Based Covalent Triazine Frameworks for High-Performance Energy Storage and Carbon Dioxide Uptake

In this study a series of bicarbazole-based covalent triazine frameworks (Car-CTFs) were synthesized under ionothermal conditions from [9,9'-bicarbazole]-3,3',6,6'-tetracarbonitrile (Car-4CN) in the presence of molten zinc chloride. Thermogravimetric and Brunauer?Emmett?Teller analyses revealed that these Car-CTFs possessed excellent thermal stabilities and high specific surface areas (ca. 1400 m2/g). The electrochemical performances of this Car-CTF series, investigated by using cyclic voltammetry, showed a highest capacitance of (545 F/g at 5 mV/s), which also exhibited excellent columbic efficiencies of 96.1 % after 8000 cycles at 100 μA/0.5 cm2. The other Car-CTF samples displayed similar efficiencies. Furthermore, based on CO2 uptake measurements, one of the series showed the highest CO2 uptake capacities: 3.91 and 7.60 mmol/g at 298 and 273 K, respectively. These results suggest a simple method for the preparation of CTF materials that provide excellent electrochemical and CO2 uptake performance.

HYDROGEN-BONDED ORGANIC FRAMEWORK FOR SEPARATING ALKENES FROM ALKANES

In some aspects, the present disclosure provides one or more compounds of the formula: The compounds maybe used to form one or more organic frameworks that may be used in the separation of two or more molecules from each other. In some embodiments, the molecules are ethylene and ethane. In some embodiments, the organic frameworks may be used to separate one or more of these molecules with high selectivity.

Carbazole- And thiophene-containing conjugated microporous polymers with different planarity for enhanced photocatalytic hydrogen evolution

We report the synthesis of two carbazole-thiophene-based conjugated microporous polymers (Cz-3Th and Cz-4Th CMPs) with different degrees of planarity for photocatalytic hydrogen evolution from water. Depending upon the building linker's planarity, we found that the porous structure, hydrogen-evolution rate, and photocatalytic stability of the resultant CMPs varied.

N,N′-bicarbazole-benzothiadiazole-based conjugated porous organic polymer for reactive oxygen species generation in live cells

A π-conjugated porous organic polymer (BCzBz) was fabricated employingN,N′-bicarbazole and benzothiadiazole as molecular building units exhibiting broad visible light absorption. The photostable, water-dispersible, and cytocompatible BCzBz was demonstrated as an efficient probe for intracellular reactive oxygen species generation under photoirradiation.

Application of carbazole diphenylamine N-N coupled derivatives in luminescence

The invention discloses an application of a carbazole diphenylamine N-N coupled derivative in luminescence, the structural formula of the carbazole diphenylamine N-N coupled derivative is any one of Ito III, R1, R2, R3 and R4 are the same or different, wh