Monitoring structural transformations in crystals. 11. Yang photocyclizations ‒ one type of reaction, but diversity of structural changes
Turowska-Tyrk, Ilona; Bakowicz, Julia; Scheffer, John R.; Acta Crystallographica Section B 63 (2007) 933–940; doi:10.1107/S0108768107051336

data_2102972
_publ_section_title
;
 Monitoring structural transformations in crystals. 11. Yang
 photocyclizations -- one type of reaction, but diversity of structural
 changes
;
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              933
_journal_page_last               940
_journal_paper_doi               10.1107/S0108768107051336
_journal_volume                  63
_journal_year                    2007
_chemical_formula_sum            'C24 H31 N O3'
_chemical_formula_weight         381.50
_chemical_name_systematic
;
 ?
;
_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   geom
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.8834(7)
_cell_length_b                   12.0641(15)
_cell_length_c                   25.924(3)
_cell_measurement_reflns_used    1000
_cell_measurement_temperature    299(2)
_cell_measurement_theta_max      12
_cell_measurement_theta_min      3
_cell_volume                     2152.8(4)
_computing_cell_refinement       'CRYSALIS (Oxford Diffraction, 2003)'
_computing_data_collection       'CRYSALIS (Oxford Diffraction, 2003)'
_computing_data_reduction        'CRYSALIS (Oxford Diffraction, 2003)'
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'SXELXL97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      299(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Kuma KM4CCD diffractometer'
_diffrn_measurement_method       '\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  0.0962
_diffrn_reflns_av_sigmaI/netI    0.1319
_diffrn_reflns_limit_h_max       3
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            11650
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.06
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  0.9811
_exptl_absorpt_correction_T_min  0.9700
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.177
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             824
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
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_refine_diff_density_max         0.161
_refine_diff_density_min         -0.181
_refine_ls_abs_structure_details
;
 The absolute structure was assigned on the basis of known
 absolute configuration of the cation.
;
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.838
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
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_refine_ls_number_reflns         3741
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.838
_refine_ls_R_factor_all          0.1848
_refine_ls_R_factor_gt           0.0609
_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^)+(0.0813P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1379
_refine_ls_wR_factor_ref         0.1808
_reflns_number_gt                1344
_reflns_number_total             3741
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            bk5065.cif
_cod_data_source_block           100P
_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               2102972
_cod_database_fobs_code          2102972