Syntheses, structures, modification, and optical properties of meso-tetraaryl-2,3-dimethoxychlorin, and two isomeric meso-tetraaryl-2,3,12,13-tetrahydroxybacteriochlorins.
Samankumara, Lalith P.; Zeller, Matthias; Krause, Jeanette A.; Brückner, Christian; Organic & biomolecular chemistry 8 (2010) 1951–1965; doi:10.1039/b924539a

data_7153304
_publ_section_title
;
 Syntheses, structures, modification, and optical properties of
 meso-tetraaryl-2,3-dimethoxychlorin, and two isomeric
 meso-tetraaryl-2,3,12,13-tetrahydroxybacteriochlorins.
;
_journal_issue                   8
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              1951
_journal_page_last               1965
_journal_paper_doi               10.1039/b924539a
_journal_volume                  8
_journal_year                    2010
_chemical_absolute_configuration unk
_chemical_formula_sum            'C44 H32 N4 O'
_chemical_formula_weight         632.74
_chemical_name_systematic
;
?
;
_space_group_IT_number           122
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'I -4 2bw'
_symmetry_space_group_name_H-M   'I -4 2 d'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.0677(9)
_cell_length_b                   15.0677(9)
_cell_length_c                   13.8543(17)
_cell_measurement_reflns_used    4568
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.37
_cell_measurement_theta_min      2.70
_cell_volume                     3145.4(5)
_computing_cell_refinement       'Apex2 v2008.2-4 '
_computing_data_collection       'Apex2 v2008.2-4 (Bruker, 2008)'
_computing_data_reduction        'Apex2 v2008.2-4 '
_computing_molecular_graphics    'SHELXTL 6.14'
_computing_publication_material  'SHELXTL 6.14'
_computing_structure_refinement  'SHELXTL 6.14'
_computing_structure_solution    'SHELXTL 6.14 (Bruker, 2000-2003)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker AXS SMART APEX CCD 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  0.0301
_diffrn_reflns_av_sigmaI/netI    0.0141
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            13888
_diffrn_reflns_theta_full        28.27
_diffrn_reflns_theta_max         28.27
_diffrn_reflns_theta_min         2.00
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_T_max  0.980
_exptl_absorpt_correction_T_min  0.848
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Apex2 v2008.2-4 (Bruker, 2008)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.336
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1328
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.187
_refine_diff_density_min         -0.146
_refine_diff_density_rms         0.039
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     136
_refine_ls_number_reflns         1089
_refine_ls_number_restraints     26
_refine_ls_restrained_S_all      1.073
_refine_ls_R_factor_all          0.0473
_refine_ls_R_factor_gt           0.0402
_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^)+(0.0727P)^2^+1.2693P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1117
_refine_ls_wR_factor_ref         0.1191
_reflns_number_gt                963
_reflns_number_total             1089
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            b924539a.txt
_cod_data_source_block           11a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Tetragonal' changed to 'tetragonal'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      I-42d
_cod_database_code               7153304