106
S. Goswami et al. / Journal of Molecular Structure 846 (2007) 97–107
was used for the absorption correction for the compound.
The crystal structures were solved by direct methods. The
refinement was performed using full-matrix least-squares
Appendix A. Supplementary data
2
on F . All non-H atoms were anisotropically refined. All
C–H atoms were treated as riding atoms and included as
such in the structure factor calculations: the two N–H H
atoms were refined with isotropic parameters. Selected
crystal and data collection parameters are reported in
Tables 3 and 4, respectively.
Crystallographic calculations were made at the Univer-
sity of Toronto and Dublin City University using the fol-
lowing programs: PLATON for the geometrical
calculations; Nonius software [28] for data collection;
DENZO-SMN [29] for cell refinement and data reduction;
SHELXS-97 [30] and SHELXL97 [31] for structure solu-
tion and refinement; SORTAV [32] for absorption correc-
tion; PLATON for molecular graphics and SHELXL97
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