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Thermal expansion of pyrazine
Author(s) -
De With G.
Publication year - 1976
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889876012016
Subject(s) - pyrazine , thermal expansion , diffraction , tensor (intrinsic definition) , lattice constant , thermal , materials science , lattice (music) , negative thermal expansion , crystallography , chemistry , condensed matter physics , thermodynamics , physics , geometry , stereochemistry , optics , mathematics , acoustics
The thermal expansion tensor of pyrazine(1,4‐diazabenzene, C 4 H 4 N 2 ) has been calculated from the changes of the lattice constants with temperature, as measured with X‐ray diffraction. The elements of the thermal expansion tensor at 293 K are α a = −14 (3), α b = 111 (5) and α c = 246 (3) x 10 −6 °K −1