Triazine-based frameworks

The microwave enhanced synthesis of magnetic porous carbonaceous polymeric materials CTF/Fe203 composite (CTF = covalent triazine based framework) has been given Zhang et al. [17]. The synthesized composite finds great application in the fast separation of organic dyes from aqueous solutions. 

Zhanga W, Eianga F, Ei C et al (2011) Microwave-enhanced synthesis of magnetic porous covalent triazine-based framework composites for fast separation of organic dye from aqueous solution. J Hazard Mater 186 984-990... 

Kuhn P, Antonietti M, Thomas A (2008) Porous, covalent triazine-based frameworks prepared by ionothermal synthesis. Angew Chem Int Edit 47 3450-3453... 

S. Ren, M. J. Bojdys, R. Dawson, A. Laybourn, Y. Z. Khimyak, D. J. Adams and A. I. Cooper, Porous, Fluorescent, Covalent Triazine-Based Frameworks Via Room-Temperature and Microwave-Assisted Synthesis, Adv. Mater., 2012, 24(17), 2357-2361. 

A. Bhunia, V. Vasylyeva and C. Janiak, From a supramolecular tetra-nitrile to a porous covalent triazine-based framework with high gas uptake capacities, Chem. Commun., 2013, 49(38), 3961-3963. 

BET = Brunauer-Emmett-Teller CMON = covalent metal-organic networks CTF = covalent triazine-based framework DCQNI = A,A -dicyanoquinodiimine DEF = A,A-diethylformamide DMA = A,A-dimethyl-acetamide FP-TRMC = flash-photolysis time-resolved microwave conductivity HHT = 2,3,6,7,10,11-hexa-hydroxytriphenylene M-CAT = metal-catecholate PSM = postsynthesis modifications PXRD = powder X-ray diffraction TCNQ = tetracyanoquinodimethane TOF = time-of-flight TTF = tetrathiafulvalene. 

Porous organic frameworks (POFs), such as metal-organic frameworks (MOFs), covalent organic frameworks (COFs), conjugated micro-porous polymers (CMPs), ° polymers of intrinsic microporosity (PIMs), crystalline triazine-based organic frameworks (CTFs), hyper-crosslinked... 

A superacid-catalyzed synthesis of porous membranes based on triazine frameworks for CO2 separation. J Am Chem Soc 134 10478-10484... 

Fig. 5.12 a Synthesis of CTF-1 and the extended crystalline structures, b Trimerization reaction of 4,4 -biphenyldicarbonitrile in CF3SO3H at 100 °C and the photograph of a directly synthesized sample of the transparent and flexible triazine-framework-based membrane TFM-1... 

Hug S, Tauchert ME, li S et al (2012) A functional triazine framework based on n-heterocy-clic building blocks. J Mater Chem 22 13956-13964... 

B. V. Lotsch, A fluorene based covalent triazine framework with high C02 and H2 capture and storage capacities, J. Mater. Chem. A, 2014, 2(16), 5928-5936. 

The earliest examples of coordination polymers constructed through the node-and-spacer approach utilized metal ions as nodes and neutral N-donor ligands as spacers. Examples of neutral N-donor ligands utilized in the construction of coordination polymers include pyrazine, 4,4 -bipyridine, ° pyrimidine, triazine, and hexamethylenetetramine (HMTA) (Figures 4-6). Examples of permanently porous MOFs based on neutral N-donor ligands are scarce, mainly due to the relatively flexible nature of the N-M bonds around the metal center.In addition, framework interpenetration is commonly observed in this class of coordination polymers, limiting the maximal attainable pore size in isoreticular compounds constructed through expansion of the linker. ... 

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