Structures of hydro-, chloro-, and bromo-substituted maleimides and 2,6-diaminopyridines, and of some of their 1 : 1 heterodimers
Pilati, Tullio; Cozzi, Franco; CrystEngComm 13 (2011) 4549–; doi:10.1039/c1ce05166k

data_7206219
_publ_section_title
;
 Structures of hydro-, chloro-, and bromo-substituted maleimides and
 2,6-diaminopyridines, and of some of their 1&#x2009;:&#x2009;1
 heterodimers
;
_journal_issue                   14
_journal_name_full               CrystEngComm
_journal_page_first              4549
_journal_paper_doi               10.1039/c1ce05166k
_journal_volume                  13
_journal_year                    2011
_chemical_formula_moiety         'C5 H5 Cl2 N3, C4 H1 Br2 N O2'
_chemical_formula_sum            'C9 H6 Br2 Cl2 N4 O2'
_chemical_formula_weight         432.90
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                100.225(12)
_cell_angle_beta                 98.246(11)
_cell_angle_gamma                95.329(11)
_cell_formula_units_Z            2
_cell_length_a                   6.9498(8)
_cell_length_b                   8.5107(11)
_cell_length_c                   11.2025(12)
_cell_measurement_reflns_used    5457
_cell_measurement_temperature    103(2)
_cell_measurement_theta_max      32.23
_cell_measurement_theta_min      2.98
_cell_volume                     640.56(14)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics
;
ORTEP-3 (Farrugia, L.J. (1997) Jour. Appl. Cryst. 30, 565)
Mercury (Macrae, C. F., Edgington, P. R., McCabe, P., Pidcock, E.,
Shields, G. P., Taylor, R., Towler, M. & van de Streek, J. (2006).
J. Appl. Cryst. 39, 453-457
;
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement
'SHELXL-97 (Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122)'
_computing_structure_solution
;
SIR2002 (Burla, M. C., Camalli, M., Carrozzini, B., Cascarano, G. L.,
Giacovazzo, C., Polidori, G. & Spagna, R. (2003).
J. Appl. Cryst. 36, 1103.)
;
_diffrn_ambient_temperature      103(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.875
_diffrn_measurement_device_type  'Bruker APEX-II CCD area detector'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0250
_diffrn_reflns_av_sigmaI/netI    0.0287
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            12200
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         32.81
_diffrn_reflns_theta_min         2.45
_diffrn_standards_decay_%        0.00
_exptl_absorpt_coefficient_mu    6.746
_exptl_absorpt_correction_T_max  0.3836
_exptl_absorpt_correction_T_min  0.2712
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Bruker (2001). SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.'
_exptl_crystal_colour            red-orange
_exptl_crystal_density_diffrn    2.244
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       table
_exptl_crystal_F_000             416
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.609
_refine_diff_density_min         -0.754
_refine_diff_density_rms         0.098
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     196
_refine_ls_number_reflns         4151
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0340
_refine_ls_R_factor_gt           0.0233
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0260P)^2^+0.1672P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0513
_refine_ls_wR_factor_ref         0.0546
_reflns_number_gt                3477
_reflns_number_total             4151
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c1ce05166k.txt
_cod_data_source_block           cz17
_cod_original_cell_volume        640.56(13)
_cod_database_code               7206219