Structures in solid state and solution of dimethoxy curcuminoids: regioselective bromination and chlorination
Petra Galer; Amalija Golobic; Joze Koller; Berta Kosmrlj; Boris Sket; Chemistry Central Journal 7 (2013) 107–; doi:10.1186/1752-153X-7-107

data_1547258
_publ_section_title
;
 Structures in solid state and solution of dimethoxy curcuminoids:
 regioselective bromination and chlorination
;
_journal_name_full               'Chemistry Central Journal'
_journal_page_first              107
_journal_paper_doi               10.1186/1752-153X-7-107
_journal_volume                  7
_journal_year                    2013
_chemical_formula_moiety         'C23 H24 O6, C O'
_chemical_formula_sum            'C24 H24 O7'
_chemical_formula_weight         424.43
_space_group_IT_number           60
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2n 2ab'
_symmetry_space_group_name_H-M   'P b c n'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   30.699(5)
_cell_length_b                   8.444(5)
_cell_length_c                   8.788(5)
_cell_measurement_reflns_used    2930
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     2278.0(19)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 2000)'
_computing_data_reduction        'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'ORTEPIII (Farrugia, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_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     0.71072
_diffrn_reflns_av_R_equivalents  0.035
_diffrn_reflns_av_sigmaI/netI    0.0195
_diffrn_reflns_limit_h_max       39
_diffrn_reflns_limit_h_min       -39
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            39342
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         3.60
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(DENZO-SMN; Otwinovski, Minor 1997)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.237
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             896
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.934
_refine_diff_density_min         -0.177
_refine_diff_density_rms         0.046
_refine_ls_extinction_coef       0.024(11)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     152
_refine_ls_number_reflns         2571
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.0891
_refine_ls_R_factor_gt           0.0701
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1321P)^2^+0.7366P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2122
_refine_ls_wR_factor_ref         0.2310
_reflns_number_gt                1911
_reflns_number_total             2571
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            13065_2013_653_MOESM4_ESM.cif
_cod_data_source_block           2e
_cod_original_sg_symbol_H-M      Pbcn
_cod_database_code               1547258