Poly(triazine imide) with intercalation of Lithium and ChlorideiIons [(C3N3)2(NHxLi1−x)3⋅LiCl]: A Crystalline 2D Carbon Nitride network Wirnhier, Eva, Doblinger, Markus, Gunzelmann, Daniel, Senker, Jurgen, Lotsch, Bettina V. and Schnick, Wolfgang 2011, Poly(triazine imide) with intercalation of Lithium and ChlorideiIons [(C3N3)2(NHxLi1−x)3⋅LiCl]: A Crystalline 2D Carbon Nitride network, Chemistry : a European journal, vol. 17, no. 11, pp. 3213-3221, doi: 10.1002/chem.201002462. Attached Files Name Description MIMEType Size Downloads Title Poly(triazine imide) with intercalation of Lithium and ChlorideiIons [(C3N3)2(NHxLi1−x)3⋅LiCl]: A Crystalline 2D Carbon Nitride network Author(s) Wirnhier, Eva Doblinger, Markus Gunzelmann, Daniel Senker, Jurgen Lotsch, Bettina V. Schnick, Wolfgang Journal name Chemistry : a European journal Volume number 17 Issue number 11 Start page 3213 End page 3221 Total pages 9 Publisher Wiley Place of publication London, Eng. Publication date 2011-03-07 ISSN 1521-3765 Keyword(s) carbon nitrides electron diffreaction intercalations layered compounds NMR spectroscopy Summary Poly(triazine imide) with intercalation of lithium and chloride ions (PTI/Li+Cl−) was synthesized by temperature-induced condensation of dicyandiamide in a eutectic mixture of lithium chloride and potassium chloride as solvent. By using this ionothermal approach the well-known problem of insufficient crystallinity of carbon nitride (CN) condensation products could be overcome. The structural characterization of PTI/Li+Cl− resulted from a complementary approach using spectroscopic methods as well as different diffraction techniques. Due to the high crystallinity of PTI/Li+Cl− a structure solution from both powder X-ray and electron diffraction patterns using direct methods was possible; this yielded a triazine-based structure model, in contrast to the proposed fully condensed heptazine-based structure that has been reported recently. Further information from solid-state NMR and FTIR spectroscopy as well as high-resolution TEM investigations was used for Rietveld refinement with a goodness-of-fit (χ2) of 5.035 and wRp=0.05937. PTI/Li+Cl− (P63cm (no. 185); a=846.82(10), c=675.02(9) pm) is a 2D network composed of essentially planar layers made up from imide-bridged triazine units. Voids in these layers are stacked upon each other forming channels running parallel to [001], filled with Li+ and Cl− ions. The presence of salt ions in the nanocrystallites as well as the existence of sp2-hybridized carbon and nitrogen atoms typical of graphitic structures was confirmed by electron energy-loss spectroscopy (EELS) measurements. Solid-state NMR spectroscopy investigations using 15N-labeled PTI/Li+Cl− proved the absence of heptazine building blocks and NH2 groups and corroborated the highly condensed, triazine-based structure model. Language eng DOI 10.1002/chem.201002462 Field of Research 039999 Chemical Sciences not elsewhere classified Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences HERDC Research category C1.1 Refereed article in a scholarly journal Copyright notice ©2011, Wiley Persistent URL http://hdl.handle.net/10536/DRO/DU:30064411 Document type: Journal Article Collection: Population Health Related Links Link Description Connect to published version (restricted access) Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Fri, 13 Jun 2014, 12:12:31 EST Mon, 16 Jun 2014, 08:51:37 EST Fri, 20 Jun 2014, 14:55:51 EST Thu, 11 Dec 2014, 20:37:19 EST Filtered Full Citation counts:   Cited 93 times in TR Web of Science Cited 110 times in Scopus Search Google Scholar Access Statistics: 169 Abstract Views, 1 File Downloads  -  Detailed Statistics Created: Fri, 13 Jun 2014, 12:12:31 EST

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