Polymorphism in 4-Methoxy-3-nitrobenzaldehyde
Sara Wishkerman
Joel Bernstein
Peter W. Stephens
10.1021/cg0506572.s003
https://acs.figshare.com/articles/media/Polymorphism_in_4_Methoxy_3_nitrobenzaldehyde/3077272
Two of the three earlier reported polymorphic forms of 4-methoxy-3-nitrobenzaldehyde have been reinvestigated
and fully characterized by a variety of methods including variable temperature powder X-ray diffraction, vibrational spectroscopy
(infrared and Raman), calorimetry (differential scanning calorimetry, DSC), and optical microscopy. Differences of DSC thermograms,
which were carried out with different cooling rates, suggest a thermodynamic/kinetic competition in the crystallization from the
melt. The crystal structures of these two forms have been solved, one by single-crystal methods and the second from synchrotron
powder diffraction.
2006-06-07 00:00:00
vibrational spectroscopy
Differences
scanning calorimetry
crystal structures
Raman
variety
crystallization
Methoxy
polymorphic forms
method
Polymorphism
synchrotron powder diffraction
methoxy
reinvestigated
cooling rates
microscopy
DSC thermograms