Unusual conformational preference of an aromatic secondary urea: solvent-dependent open-closed conformational switching of N,N'-bis(porphyrinyl)urea
Mio Matsumura; Aya Tanatani; Isao Azumaya; Hyuma Masu; Daisuke Hashizume; Hiroyuki Kagechika; Atsuya Muranaka; Masanobu Uchiyama; Chem.Commun. 49 (2013) 2290–; doi:10.1039/c2cc37583d

data_7108943
_publ_section_title
;
 Unusual conformational preference of an aromatic secondary urea:
 solvent-dependent open-closed conformational switching of
 N,N'-bis(porphyrinyl)urea
;
_journal_name_full               Chem.Commun.
_journal_page_first              2290
_journal_paper_doi               10.1039/c2cc37583d
_journal_volume                  49
_journal_year                    2013
_chemical_formula_sum            'C47 H58 N6 Ni O2'
_chemical_formula_weight         797.70
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                81.982(7)
_cell_angle_beta                 89.135(6)
_cell_angle_gamma                86.992(7)
_cell_formula_units_Z            2
_cell_length_a                   4.808(2)
_cell_length_b                   13.525(7)
_cell_length_c                   31.228(16)
_cell_measurement_reflns_used    2702
_cell_measurement_temperature    120
_cell_measurement_theta_max      25.12
_cell_measurement_theta_min      2.32
_cell_volume                     2008.0(17)
_computing_cell_refinement       'APEX2 (Bruker AXS, 2006)'
_computing_data_collection       'APEX2 '
_computing_data_reduction        'SAINT (Bruker AXS, 2004)'
_computing_molecular_graphics    'XSHEL (Bruker AXS,2002)'
_computing_publication_material  'XCIF (Bruker AXS, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      120
_diffrn_detector_area_resol_mean 8.333
_diffrn_measured_fraction_theta_full 0.951
_diffrn_measured_fraction_theta_max 0.901
_diffrn_measurement_device_type  'Bruker APEXII CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0865
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       38
_diffrn_reflns_limit_l_min       -38
_diffrn_reflns_number            7346
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         1.52
_exptl_absorpt_coefficient_mu    0.531
_exptl_absorpt_correction_T_max  0.9739
_exptl_absorpt_correction_T_min  0.7961
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;
SADABS Sheldrick 1996
;
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.319
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             852
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.809
_refine_diff_density_min         -1.063
_refine_diff_density_rms         0.116
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.087
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     551
_refine_ls_number_reflns         7346
_refine_ls_number_restraints     59
_refine_ls_restrained_S_all      1.084
_refine_ls_R_factor_all          0.1076
_refine_ls_R_factor_gt           0.0881
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0924P)^2^+12.9976P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2435
_refine_ls_wR_factor_ref         0.2546
_reflns_number_gt                5694
_reflns_number_total             7346
_reflns_threshold_expression     >2sigma
_cod_data_source_file            c2cc37583d.txt
_cod_data_source_block           a1001261mas
_cod_original_sg_symbol_H-M      'P-1 '
_cod_database_code               7108943