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Issue 7, 2011
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Pressure-induced collapse of guanidinium nitrate N–H⋯O bonded honeycomb layers into a 3-D pattern with varied H-acceptor capacity

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Abstract

Highly favoured N–H⋯O bonded honeycomb layers in guanidinium nitrate, C(NH2)3+NO3, have been destabilized by a pressure of 0.6 GPa, and the novel motif of 3-dimensional N–H⋯O bonded aggregation in high-pressure phase IV determined for in situ grown single-crystal by X-ray diffraction. The mechanism of the transition involves the collapse of voids present in phases I, II and III. In the P/T phase diagram a large hysteresis of the phase IV boundaries is caused by the strongly reconstructive character of the transition and pressure dependent H-accepting capacity of oxygen atoms.

Graphical abstract: Pressure-induced collapse of guanidinium nitrate N–H⋯O bonded honeycomb layers into a 3-D pattern with varied H-acceptor capacity

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Publication details

The article was received on 17 Jul 2010, accepted on 29 Nov 2010 and first published on 23 Dec 2010


Article type: Communication
DOI: 10.1039/C0CC02630A
Citation: Chem. Commun., 2011,47, 2107-2109
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    Pressure-induced collapse of guanidinium nitrate N–H⋯O bonded honeycomb layers into a 3-D pattern with varied H-acceptor capacity

    A. Katrusiak, M. Szafrański and M. Podsiadło, Chem. Commun., 2011, 47, 2107
    DOI: 10.1039/C0CC02630A

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