Self-assembly into infinite tapes by 2,7-disubstituted-1,8-naphthyridines in the solid state
Bailey, Andrew James; Horton, Peter Neil; Grossel, Martin Christopher; CrystEngComm 12 (2010) 4074–; doi:10.1039/C0CE00243G

data_7238340
_publ_section_title
;
 Self-assembly into infinite tapes by 2,7-disubstituted-1,8-naphthyridines
 in the solid state
;
_journal_issue                   12
_journal_name_full               CrystEngComm
_journal_page_first              4074
_journal_paper_doi               10.1039/C0CE00243G
_journal_volume                  12
_journal_year                    2010
_chemical_formula_moiety         'C24 H18 N2 O4'
_chemical_formula_sum            'C24 H18 N2 O4'
_chemical_formula_weight         398.40
_chemical_name_systematic
;
dibenzyl 1,8-naphthyridine-2,7-dicarboxylate
;
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 93.849(13)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   35.50(4)
_cell_length_b                   6.307(8)
_cell_length_c                   8.381(10)
_cell_measurement_reflns_used    967
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.95
_cell_measurement_theta_min      3.37
_cell_volume                     1872(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    SIR2004
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker SMART APEX2 CCD diffractometer'
_diffrn_measurement_method       'fine-slice \w scans'
_diffrn_radiation_monochromator  'silicon 111'
_diffrn_radiation_source         'Daresbury SRS station 9.8'
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.6939
_diffrn_reflns_av_R_equivalents  0.0510
_diffrn_reflns_av_sigmaI/netI    0.0510
_diffrn_reflns_limit_h_max       46
_diffrn_reflns_limit_h_min       -46
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            8192
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         3.45
_diffrn_standards_decay_%        5
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.098
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.413
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       lath
_exptl_crystal_F_000             832
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.02
_exptl_crystal_size_min          0.005
_refine_diff_density_max         0.357
_refine_diff_density_min         -0.219
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.033
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     173
_refine_ls_number_reflns         2305
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.0718
_refine_ls_R_factor_gt           0.0486
_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^)+(0.0731P)^2^+0.2853P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1208
_refine_ls_wR_factor_ref         0.1328
_reflns_number_gt                1682
_reflns_number_total             2305
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c0ce00243g.txt
_cod_data_source_block           3c
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7238340