Induced fit phenomena in clathrate structures of cephalosporins
Kemperman, Gerardus J.; de Gelder, Rene; Dommerholt, Frederik J.; Raemakers-Franken, Petronella C.; Klunder, Antonius J. H.; Zwanenburg, Binne; Journal of the Chemical Society, Perkin Transactions 2  (2000) 1425–; doi:10.1039/b001692f

data_7213295
_publ_contact_author
;
        Dr. R. de Gelder
        Crystallography Department
        University of Nijmegen
        Toernooiveld 1
        6525 ED  Nijmegen
        The Netherlands
;
_publ_section_title
;
 Induced fit phenomena in clathrate structures of cephalosporins
;
_journal_issue                   7
_journal_name_full
'Journal of the Chemical Society, Perkin Transactions 2'
_journal_page_first              1425
_journal_paper_doi               10.1039/b001692f
_journal_year                    2000
_chemical_formula_sum            'C42 H58 N6 O15 S2'
_chemical_formula_weight         951.06
_chemical_name_systematic
; 
Cephradine/alpha-naphthol complex   
;
_space_group_IT_number           5
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C 2y'
_symmetry_space_group_name_H-M   'C 1 2 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             1999-05-04
_audit_creation_method           'SHELXL, adapted and expanded'
_cell_angle_alpha                90.00
_cell_angle_beta                 108.268(14)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   23.471(2)
_cell_length_b                   7.1215(10)
_cell_length_c                   14.9304(19)
_cell_measurement_reflns_used    21
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      20.888
_cell_measurement_theta_min      13.125
_cell_volume                     2369.8(5)
_computing_data_collection
;
CAD4 EXPRESS (Enraf-Nonius, 1994)
;
_computing_data_reduction
;
local programs (Smits et al., 1988),
profile analysis (Lehman & Larsen, 1974, Grant & Gabe, 1978),
EMPABS (North et al., 1968)
;
_computing_molecular_graphics
;
PLUTON (Spek, 1993),
PLATON (Spek, 1990, 1995)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution
;
DIRDIF (Beurskens et al., 1996),
;
_diffrn_ambient_temperature      293(2)
_diffrn_measurement_device       'Nonius CAD4'
_diffrn_measurement_method       \w-scan
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0347
_diffrn_reflns_av_sigmaI/netI    0.0861
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            4988
_diffrn_reflns_theta_full        69.90
_diffrn_reflns_theta_max         69.90
_diffrn_reflns_theta_min         3.97
_diffrn_standards_decay_%        6.414
_diffrn_standards_interval_time  7200
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    1.633
_exptl_absorpt_correction_T_max  1.024
_exptl_absorpt_correction_T_min  0.976
_exptl_absorpt_correction_type   experimental
_exptl_crystal_colour            'transparent light yellow-brown'
_exptl_crystal_density_diffrn    1.333
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'regular platelet'
_exptl_crystal_F_000             1008
_exptl_crystal_size_max          0.17
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.353
_refine_diff_density_min         -0.250
_refine_diff_density_rms         0.063
_refine_ls_abs_structure_Flack   0.03(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.034
_refine_ls_goodness_of_fit_ref   1.034
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     299
_refine_ls_number_reflns         4411
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.034
_refine_ls_R_factor_all          0.1431
_refine_ls_R_factor_gt           0.0756
_refine_ls_R_factor_obs          0.0756
_refine_ls_shift/esd_max         0.000
_refine_ls_shift/esd_mean        0.000
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
w=1/[\s^2^(Fo^2^)+(0.0947P)^2^+2.0329P] where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.2188
_refine_ls_wR_factor_gt          0.1792
_refine_ls_wR_factor_obs         0.1792
_refine_ls_wR_factor_ref         0.2188
_reflns_number_gt                2413
_reflns_number_observed          2413
_reflns_number_total             4411
_reflns_observed_criterion       >2sigma(I)
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b001692fsup1.cif
_cod_data_source_block           CEFRAA
_cod_depositor_comments
;
The following automatic conversions were performed:
'_publ_contact_autor' tag replaced with '_publ_contact_author'.

Automatic conversion script
Id: cif_correct_tags 1440 2010-10-19 06:21:57Z saulius 

The following automatic conversions were performed:

'_geom_bond_publ_flag' value 'Y' changed to 'y' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26 (34
times).

'_geom_angle_publ_flag' value 'Y' changed to 'y' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.2 from 2011-04-26 (47 times).

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      'C 2'
_cod_database_code               7213295