Progressive acylation of pyrene engineers solid state packing and colour via C-H...H-C, C-H...O and pi-pi interactions
Shinaj K. Rajagopal; Abbey M. Philip; Kalaivanan Nagarajan; Mahesh Hariharan; Chem.Commun. 50 (2014) 8644–; doi:10.1039/C4cc01897D

data_7115352
_publ_section_title
;
 Progressive acylation of pyrene engineers solid state packing and colour
 via C-H...H-C, C-H...O and pi-pi interactions
;
_journal_name_full               Chem.Commun.
_journal_page_first              8644
_journal_paper_doi               10.1039/C4cc01897D
_journal_volume                  50
_journal_year                    2014
_chemical_formula_moiety         'C20 H14 O2'
_chemical_formula_sum            'C20 H14 O2'
_chemical_formula_weight         286.31
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.000(5)
_cell_angle_beta                 98.880(5)
_cell_angle_gamma                90.000(5)
_cell_formula_units_Z            2
_cell_length_a                   9.243(5)
_cell_length_b                   7.463(5)
_cell_length_c                   10.095(5)
_cell_measurement_reflns_used    2765
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.30
_cell_measurement_theta_min      2.73
_cell_volume                     688.0(7)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0260
_diffrn_reflns_av_sigmaI/netI    0.0256
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            4832
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.78
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_T_max  0.9869
_exptl_absorpt_correction_T_min  0.9783
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.382
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rectangular
_exptl_crystal_F_000             300
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.181
_refine_diff_density_min         -0.188
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     128
_refine_ls_number_reflns         1200
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0562
_refine_ls_R_factor_gt           0.0416
_refine_ls_shift/su_max          0.014
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0726P)^2^+0.0885P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1148
_refine_ls_wR_factor_ref         0.1229
_reflns_number_gt                941
_reflns_number_total             1200
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c4cc01897d2.cif
_cod_data_source_block           0083_311212_mh_pyr_dimiso_0m
_cod_original_sg_symbol_H-M      P12(1)/n1
_cod_database_code               7115352