Ab initio simulations of α- and β-ammonium carbamate (NH4·NH2CO2), and the thermal expansivity of deuterated α-ammonium carbamate from 4.2 to 180 K by neutron powder diffraction

Howard, C.M.; Wood, I.G.; Knight, K.S.; Fortes, A.D.

doi:10.1107/S2052520622002645

Acta Crystallographica Section B
Acta Crystallographica
Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS

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Figure 15
Projections of the thermal expansion coefficient representation surface in the yz (top), xz (middle) and xy (bottom) planes at 60, 120 and 180 K. Solid green lines are positive values. Corresponding projections of the structure of α-ammonium carbamate are shown on the right.

STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

ISSN: 2052-5206

Volume 78| Part 3| June 2022| Pages 459-475

https://doi.org/10.1107/S2052520622002645

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