| Autor: |
Ströbele M; Section for Solid State and Theoretical, Inorganic Chemistry, Institute of Inorganic Chemistry, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany., Bayat E; Section for Solid State and Theoretical, Inorganic Chemistry, Institute of Inorganic Chemistry, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany., Meyer HJ; Section for Solid State and Theoretical, Inorganic Chemistry, Institute of Inorganic Chemistry, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany. |
| Jazyk: |
angličtina |
| Zdroj: |
Inorganic chemistry [Inorg Chem] 2024 Sep 02; Vol. 63 (35), pp. 16565-16572. Date of Electronic Publication: 2024 Aug 23. |
| DOI: |
10.1021/acs.inorgchem.4c02996 |
| Abstrakt: |
Thermal analysis techniques, such as differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), can provide valuable insights into thermal properties, intermediate phases, and phase transitions; sometimes even a whole series of compounds appears in a given system. The solid-state reaction pathway from melamine to carbodiimide, monitored by DSC, involves a sequence of chemical reactions and intermediate phases departing from the reaction of potassium hydride and melamine. The fully analyzed reaction cascade begins with the formation of potassium melaminate, K(C 3 N 6 H 5 ), and progresses through several intermediate phases, each with distinct structures and properties, before ultimately yielding β-K 2 (CN 2 ). All crystalline compounds appearing in this reaction sequence are identified using X-ray diffraction analyses. With a 6:1 ratio of potassium hydride and melamine, equal numbers of protic and hydridic hydrogen atoms in the starting materials favor the release of H 2 until the formation of the final product K 2 (CN 2 ), which appears with two modifications. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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