Reengineered epipodophyllotoxin
Igor Magedov; Nikolai Evdokimov; Menuka Karki; Amanda Peretti; Dustin Lima; Lilia Frolova; Mary Reisenauer; Anntherese Romero; Paul Tongwa; Alexandr Fonari; Jeff Altig; Snezna Rogelj; Mikhail Antipin; Charles Shuster; Alexander Kornienko; Chem.Commun. 48 (2012) 10416–; doi:10.1039/c2cc35044k

data_7108461
_publ_section_title
;
 Reengineered epipodophyllotoxin
;
_journal_name_full               Chem.Commun.
_journal_page_first              10416
_journal_paper_doi               10.1039/c2cc35044k
_journal_volume                  48
_journal_year                    2012
_chemical_formula_moiety         'C22 H16 Br2 O3'
_chemical_formula_sum            'C22 H16 Br2 O3'
_chemical_formula_weight         488.17
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 93.958(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   18.738(7)
_cell_length_b                   11.950(5)
_cell_length_c                   16.831(7)
_cell_measurement_reflns_used    2449
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      18.96
_cell_measurement_theta_min      2.18
_cell_volume                     3760(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II 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     0.71073
_diffrn_reflns_av_R_equivalents  0.0794
_diffrn_reflns_av_sigmaI/netI    0.0516
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            21882
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.02
_exptl_absorpt_coefficient_mu    4.332
_exptl_absorpt_correction_T_max  0.7513
_exptl_absorpt_correction_T_min  0.6965
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.725
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1936
_exptl_crystal_size_max          0.09
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.07
_refine_diff_density_max         1.071
_refine_diff_density_min         -0.945
_refine_diff_density_rms         0.078
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     248
_refine_ls_number_reflns         3311
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.0896
_refine_ls_R_factor_gt           0.0506
_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^)+(0.0272P)^2^+24.1348P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1002
_refine_ls_wR_factor_ref         0.1183
_reflns_number_gt                2148
_reflns_number_total             3311
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2cc35044k.txt
_cod_data_source_block           11
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_Hall     '-C 2yc '
_cod_original_sg_symbol_H-M      'C2/c '
_cod_database_code               7108461