Document Detail

Construction of Crystalline 2D Covalent Organic Frameworks with Remarkable Chemical (acid/base) Stability via Combined Reversible and Irreversible Route.
MedLine Citation:
PMID:  23153356     Owner:  NLM     Status:  Publisher    
Two new chemically stable [acid and base] 2-D crystaline COFs (TpPa-1 and -2) were synthesized using combined reversible and irreversible organic reaction. Synthesis of COFs were done by the Schiff base reaction between Triformylphloroglucinol (Tp) and paraphenylenediamine (Pa-1) or 2, 5-dimethyl-paraphenylenediamine (Pa-2) in mesitylene dioxane 1: 1 combination. The expected enol-imine (OH) form undergoes irre-versible proton tautomerism and only keto-enamine form was observed. Due to the irreversible nature of the total reaction and the absence of imine bond in the system TpPa-1 and -2 show strong resistance towards acid (9N HCl) and boiling water. Moreover TpPa-2 shows exceptional stability in basic medium (9N NaOH) as well.
Sharath Kandambeth; Arijit Mallick; Binit Lukose; Thomas Heine; Rahul Banerjee; Manoj Mane
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-15
Journal Detail:
Title:  Journal of the American Chemical Society     Volume:  -     ISSN:  1520-5126     ISO Abbreviation:  J. Am. Chem. Soc.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503056     Medline TA:  J Am Chem Soc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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