Paper
CrystEngComm
preparation of ABAB phthalocyanine derivatives, a class of
asymmetric phthalocyanines still scarcely represented. These
two derivatives were crystallized by sublimation, an uncom-
mon method particularly suitable due to their air-moisture
sensitivity. Their crystallographic structures were determined,
a premiere for this class of compounds.
geometrical calculations and the molecular drawings were
carried out with PLATON20 and MERCURY21 programs.
Acknowledgements
The Scientific and Technological Research Council of Turkey
(project 108 M034) is gratefully acknowledged.
Experimental section
General
References
Phthalimide and dichlorophthalimide were prepared as
described in the literature. O-dichlorobenzene was dried
and purified as described in Perrin and Armarego.16 PCl5
was freshly sublimed. Melting points were measured with
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General procedure for the synthesis of trichloroisoindolenines
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heat gun to collect the desired compound.
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C8H4Cl3N, MW 220.48. M. p.: 106–107 °C.14 ATR-IR ν (cm−1)
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1780 (s), 1714 (s), 1536 (s), 1388 (s), 1348 (s), 1304 (s).
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X-ray data collection and structure refinement
Unit cell measurements and intensity data collection
was performed on an Bruker APEX II QUAZAR three-circle
diffractometer using monochromatized Mo Kα X-radiation
(λ = 0.71073 Å). The data reduction included a correction
for Lorentz and polarization effects, with an applied
multiscan absorption correction (SADABS).17 Space groups
were determined using XPREP implemented in APEX2.18 The
structure was solved using the direct methods procedure in
SHELXS-9719 and then refined by full-matrix least-squares
refinements on F2 using the SHELXL-97.19 All non-hydrogen
atoms were refined anisotropically using all reflections
with I > 2σ(I). Aromatic C-bound H atoms were positioned
geometrically and refined using a riding mode. The final
6562 | CrystEngComm, 2014, 16, 6556–6563
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