Formation of pentacyclic structures by a domino sequence on cyclic enamides.
Satyanarayana, Gedu; Maichle-Mössmer, Caecilia; Maier, Martin E; Chemical communications (Cambridge, England) 34 (2009) 1571–1573; doi:10.1039/b820636h

data_7104263
_publ_section_title
;
 Formation of pentacyclic structures by a domino sequence on cyclic
 enamides.
;
_journal_issue                   12
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              1571
_journal_page_last               1573
_journal_paper_doi               10.1039/b820636h
_journal_volume                  34
_journal_year                    2009
_chemical_formula_sum            'C21 H21 N O'
_chemical_formula_weight         303.39
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 104.156(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.3172(13)
_cell_length_b                   7.6048(6)
_cell_length_c                   18.468(2)
_cell_measurement_reflns_used    16237
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      54.44
_cell_measurement_theta_min      4.05
_cell_volume                     1541.2(3)
_computing_cell_refinement       x-Area
_computing_data_collection       'Stoe IPDSII'
_computing_data_reduction        X-Area
_computing_molecular_graphics    'SCHAKAL, ZORTEP'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.921
_diffrn_measured_fraction_theta_max 0.921
_diffrn_measurement_device_type  'Stoe IPDSII'
_diffrn_measurement_method       omega-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  0.0666
_diffrn_reflns_av_sigmaI/netI    0.0288
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            21754
_diffrn_reflns_theta_full        26.77
_diffrn_reflns_theta_max         26.77
_diffrn_reflns_theta_min         3.26
_exptl_absorpt_coefficient_mu    0.080
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.308
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       bloc
_exptl_crystal_F_000             648
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.265
_refine_diff_density_min         -0.229
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.186
_refine_ls_hydrogen_treatment    iso
_refine_ls_matrix_type           full
_refine_ls_number_parameters     292
_refine_ls_number_reflns         3269
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.186
_refine_ls_R_factor_all          0.0637
_refine_ls_R_factor_gt           0.0519
_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^)+(0.0343P)^2^+0.8361P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1048
_refine_ls_wR_factor_ref         0.1096
_reflns_number_gt                2821
_reflns_number_total             3269
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             7104245
_cod_data_source_file            b820636h.txt
_cod_data_source_block           maigs149b
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0343P)^2^+0.8361P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0343P)^2^+0.8361P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               7104263