Electronic/substituents influence on imidazole ring donor–acceptor capacities using 1H-imidazo[4,5-f][1,10]phenanthroline frameworks
Eseola, Abiodun O.; Adepitan, Oluseyi; Görls, Helmar; Plass, Winfried; New Journal of Chemistry 36 (2012) 891–; doi:10.1039/c2nj20880f

data_7052875
_publ_section_title
;
 Electronic/substituents influence on imidazole ring donor--acceptor
 capacities using 1H-imidazo[4,5-f][1,10]phenanthroline frameworks
;
_journal_issue                   4
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              891
_journal_paper_doi               10.1039/c2nj20880f
_journal_volume                  36
_journal_year                    2012
_chemical_formula_sum            'C37 H28 N4 O'
_chemical_formula_weight         544.63
_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                 107.48(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.181(3)
_cell_length_b                   12.540(3)
_cell_length_c                   16.598(3)
_cell_measurement_temperature    293(2)
_cell_volume                     2815.3(11)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0753
_diffrn_reflns_av_sigmaI/netI    0.0747
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            17473
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.07
_exptl_absorpt_coefficient_mu    0.079
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Pale-yellow
_exptl_crystal_density_diffrn    1.285
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             1144
_exptl_crystal_size_max          0.06
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.288
_refine_diff_density_min         -0.320
_refine_diff_density_rms         0.074
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.136
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     491
_refine_ls_number_reflns         6444
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.136
_refine_ls_R_factor_all          0.1106
_refine_ls_R_factor_gt           0.0699
_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^)+(0.0540P)^2^+3.1044P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1472
_refine_ls_wR_factor_ref         0.1759
_reflns_number_gt                4495
_reflns_number_total             6444
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2nj20880f.txt
_cod_data_source_block           C-dp
_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.

'_exptl_absorpt_correction_type' value 'None' changed to
'none' 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_original_cell_volume        2815.3(10)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7052875