Striking Correlation between the Unusual Trigonal Crystal Packing and the Ability to Self-Assemble into Nanofibers of 2,3-Di-n-alkyloxyanthracenes†
Olive, Alexandre G. L.; Raffy, Guillaume; Allouchi, Hassan; Léger, Jean-Michel; Del Guerzo, André; Desvergne, Jean-Pierre; Langmuir 25 (2009) 8606–8614; doi:10.1021/la804206n

data_1513266
_publ_section_title
;
 Striking Correlation between the Unusual Trigonal Crystal Packing and the
 Ability to Self-Assemble into Nanofibers of
 2,3-Di-n-alkyloxyanthracenes&#x2020;
;
_journal_issue                   15
_journal_name_full               Langmuir
_journal_page_first              8606
_journal_page_last               8614
_journal_paper_doi               10.1021/la804206n
_journal_volume                  25
_journal_year                    2009
_chemical_formula_sum            'C20 H22 O2'
_chemical_formula_weight         294.38
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yab'
_symmetry_space_group_name_H-M   'P 1 21/a 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                 91.547(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.5062(3)
_cell_length_b                   7.9640(3)
_cell_length_c                   24.0314(10)
_cell_measurement_reflns_used    2110
_cell_measurement_temperature    160(2)
_cell_measurement_theta_max      26.01
_cell_measurement_theta_min      3.39
_cell_volume                     1627.37(11)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      160(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'kappa CCD'
_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  0.0541
_diffrn_reflns_av_sigmaI/netI    0.0517
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            10340
_diffrn_reflns_theta_full        26.01
_diffrn_reflns_theta_max         26.01
_diffrn_reflns_theta_min         3.39
_exptl_absorpt_coefficient_mu    0.076
_exptl_absorpt_correction_T_max  0.9992
_exptl_absorpt_correction_T_min  0.9794
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   scalepack
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.202
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             632
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.152
_refine_diff_density_min         -0.253
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.999
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     199
_refine_ls_number_reflns         3200
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.999
_refine_ls_R_factor_all          0.0854
_refine_ls_R_factor_gt           0.0445
_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^)+(0.0566P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0952
_refine_ls_wR_factor_ref         0.1104
_reflns_number_gt                2110
_reflns_number_total             3200
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            la804206nsup7.cif
_cod_data_source_block           A3-DPrOA
_cod_original_sg_symbol_H-M      P21/a
_cod_database_code               1513266