Photodimerizable ditopic ligand.
Jouvenot, Damien; Glazer, Edith C.; Tor, Yitzhak; Organic letters 8 (2006) 1987–1990; doi:10.1021/ol060253i

data_1505910
_publ_section_title
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 Photodimerizable ditopic ligand.
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_journal_issue                   10
_journal_name_full               'Organic letters'
_journal_page_first              1987
_journal_page_last               1990
_journal_paper_doi               10.1021/ol060253i
_journal_volume                  8
_journal_year                    2006
_chemical_formula_moiety         'C44 H28 N8'
_chemical_formula_sum            'C44 H28 N8'
_chemical_formula_weight         668.74
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 98.373(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.3433(9)
_cell_length_b                   12.0224(13)
_cell_length_c                   15.8306(18)
_cell_measurement_reflns_used    4438
_cell_measurement_temperature    208(2)
_cell_measurement_theta_max      28.04
_cell_measurement_theta_min      2.47
_cell_volume                     1571.0(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      208(2)
_diffrn_measured_fraction_theta_full 0.945
_diffrn_measured_fraction_theta_max 0.945
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and 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  0.0392
_diffrn_reflns_av_sigmaI/netI    0.0435
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            11563
_diffrn_reflns_theta_full        28.26
_diffrn_reflns_theta_max         28.26
_diffrn_reflns_theta_min         2.14
_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_T_max  0.9745
_exptl_absorpt_correction_T_min  0.9416
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            YELLOW
_exptl_crystal_density_diffrn    1.414
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             696
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.324
_refine_diff_density_min         -0.185
_refine_diff_density_rms         0.057
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.034
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     235
_refine_ls_number_reflns         3674
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.034
_refine_ls_R_factor_all          0.0766
_refine_ls_R_factor_gt           0.0547
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0963P)^2^+0.1109P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1452
_refine_ls_wR_factor_ref         0.1607
_reflns_number_gt                2654
_reflns_number_total             3674
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol060253isi20060129_124751.cif
_cod_data_source_block           tora13
_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_values 1715 2011-07-08 13:25:40Z adriana 
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_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1505910