Controlled self-assembly of bis(crown)stilbenes into unusual bis-sandwich complexes: structure and stereoselective [2+2] photocycloaddition
Gromov, Sergey P.; Vedernikov, Artem I.; Lobova, Natalia A.; Kuz'mina, Lyudmila G.; Basok, Stepan S.; Strelenko, Yuri A.; Alfimov, Michael V.; Howard, Judith A. K.; New Journal of Chemistry 35 (2011) 724–; doi:10.1039/c0nj00780c

data_7052590
_publ_section_title
;
 Controlled self-assembly of bis(crown)stilbenes into unusual
 bis-sandwich complexes: structure and stereoselective [2+2]
 photocycloaddition
;
_journal_issue                   3
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              724
_journal_paper_doi               10.1039/c0nj00780c
_journal_volume                  35
_journal_year                    2011
_chemical_formula_sum            'C34 H54 Ca2 Cl4 N2 O30'
_chemical_formula_weight         1192.75
_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   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 97.303(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.1196(2)
_cell_length_b                   16.2585(5)
_cell_length_c                   19.1065(5)
_cell_measurement_reflns_used    6394
_cell_measurement_temperature    120.0(2)
_cell_measurement_theta_max      30.243
_cell_measurement_theta_min      2.488
_cell_volume                     2501.84(12)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120.0(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Bruker SMART-APEX'
_diffrn_measurement_method       /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  0.0164
_diffrn_reflns_av_sigmaI/netI    0.0184
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            17932
_diffrn_reflns_theta_full        29.00
_diffrn_reflns_theta_max         29.00
_diffrn_reflns_theta_min         1.65
_exptl_absorpt_coefficient_mu    0.538
_exptl_absorpt_correction_T_max  0.8299
_exptl_absorpt_correction_T_min  0.8056
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.583
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1240
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.36
_refine_diff_density_max         0.631
_refine_diff_density_min         -0.503
_refine_diff_density_rms         0.061
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     498
_refine_ls_number_reflns         6562
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0378
_refine_ls_R_factor_gt           0.0345
_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^)+(0.0449P)^2^+1.8231P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0898
_refine_ls_wR_factor_ref         0.0940
_reflns_number_gt                6044
_reflns_number_total             6562
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            C0NJ00780C.TXT
_cod_data_source_block           1b+Ca
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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 1555 2011-01-17 13:19:09Z saulius 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7052590