Synthesis,Crystal Structure and Properties of Rubidium Dihydrogentricyanomelaminate Semihydrate Rb[H2C6N9] · 1/2 H2O |
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| Authors: | Barbara Jürgens Henning A Hppe Wolfgang Schnick |
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| Institution: | Barbara Jürgens,Henning A. Höppe,Wolfgang Schnick |
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| Abstract: | Rubidium dihydrogentricyanomelaminate semihydrate RbH2C6N9] · 1/2 H2O was obtained as colorless rod‐like single crystals from a solution of Rb3C6N9] · H2O and 0.1 M HCl after water evaporation at room temperature. According to the X‐ray single‐crystal structure determination (RbH2C6N9] · 1/2 H2O: C2/c (no. 15), a = 2007.4(3) pm, b = 512.2(1) pm, c = 2168.0(4) pm, β = 111.66(2)°, Z = 8, R1 = 0.059, 2391 independent reflections, 159 parameters) Rb+ and cyclic planar H2C6N9]— ions as well as hydrate water molecules occur in the crystal. RbH2C6N9] · 1/2 H2O was investigated by FTIR and Raman spectroscopy, TG measurements and temperature‐dependent X‐ray powder diffraction. According to the thermoanalytic investigations, dehydration of RbH2C6N9] · 1/2 H2O starts above 60 °C and is finished below 250 °C. |
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| Keywords: | Carbon(IV) nitrides Hydrogen bonds Hydrate Nitridocarbonate(IV) Vibrational Spectroscopy |
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