Diphenylmethyl 3-azido-1,1-dioxocephalosporanate
Bai, Guo-Yi; Peng, Hong-Wei; Simpson, Jim; Chen, Yong; Li, Ying; Acta Crystallographica Section E 62 (2006) o5716–o5718; doi:10.1107/S1600536806048835

data_2211523
_publ_section_title
;
 Diphenylmethyl 3-azido-1,1-dioxocephalosporanate
;
_journal_coeditor_code           LH2252
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o5716
_journal_page_last               o5718
_journal_paper_doi               10.1107/S1600536806048835
_journal_volume                  62
_journal_year                    2006
_chemical_formula_iupac          'C21 H20 N4 O5 S'
_chemical_formula_moiety         'C21 H20 N4 O5 S'
_chemical_formula_sum            'C21 H20 N4 O5 S'
_chemical_formula_weight         440.47
_chemical_name_systematic
;
Diphenylmethyl 3-azido-1,1-dioxocephalosporanate
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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            8
_cell_length_a                   10.9030(13)
_cell_length_b                   11.3796(14)
_cell_length_c                   34.293(4)
_cell_measurement_reflns_used    5653
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      21.82
_cell_measurement_theta_min      2.38
_cell_volume                     4254.8(9)
_computing_cell_refinement       'SAINT (Bruker, 1997)'
_computing_data_collection       'SMART (Bruker, 1997)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL (Bruker, 1997)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART-1000 CCD area-detector'
_diffrn_measurement_method       '\f and \w'
_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  0.0365
_diffrn_reflns_av_sigmaI/netI    0.0462
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       40
_diffrn_reflns_limit_l_min       -40
_diffrn_reflns_number            20301
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         1.89
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.193
_exptl_absorpt_correction_T_max  0.9661
_exptl_absorpt_correction_T_min  0.9428
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.375
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1840
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.204
_refine_diff_density_min         -0.250
_refine_ls_abs_structure_details 'Flack (1983), 2607 Friedel pairs'
_refine_ls_abs_structure_Flack   0.04(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     561
_refine_ls_number_reflns         7497
_refine_ls_number_restraints     18
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0686
_refine_ls_R_factor_gt           0.0416
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0408P)^2^+0.1929P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0813
_refine_ls_wR_factor_ref         0.0915
_reflns_number_gt                5529
_reflns_number_total             7497
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            lh2252.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_database_code               2211523
_cod_database_fobs_code          2211523