Solid-state photochemical and photomechanical properties of molecular crystal nanorods composed of anthracene ester derivatives
Zhu, Lingyan; Agarwal, Arun; Lai, Jinfeng; Al-Kaysi, Rabih O.; Tham, Fook S.; Ghaddar, Tarek; Mueller, Leonard; Bardeen, Christopher J.; Journal of Materials Chemistry 21 (2011) 6258–; doi:10.1039/c1jm10228a

data_7206052
_publ_section_title
;
 Solid-state photochemical and photomechanical properties of molecular
 crystal nanorods composed of anthracene ester derivatives
;
_journal_issue                   17
_journal_name_full               'Journal of Materials Chemistry'
_journal_page_first              6258
_journal_paper_doi               10.1039/c1jm10228a
_journal_volume                  21
_journal_year                    2011
_chemical_formula_sum            'C19 H18 O2'
_chemical_formula_weight         278.33
_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                 97.331(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.783(3)
_cell_length_b                   8.098(3)
_cell_length_c                   19.488(6)
_cell_measurement_reflns_used    4476
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      23.64
_cell_measurement_theta_min      2.73
_cell_volume                     1531.3(9)
_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 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0223
_diffrn_reflns_av_sigmaI/netI    0.0149
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            16430
_diffrn_reflns_theta_full        25.68
_diffrn_reflns_theta_max         25.68
_diffrn_reflns_theta_min         2.10
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  0.9814
_exptl_absorpt_correction_T_min  0.9742
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            'light yellow'
_exptl_crystal_density_diffrn    1.207
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'prism frag'
_exptl_crystal_F_000             592
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.122
_refine_diff_density_min         -0.134
_refine_diff_density_rms         0.028
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.016
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     247
_refine_ls_number_reflns         2898
_refine_ls_number_restraints     178
_refine_ls_restrained_S_all      1.010
_refine_ls_R_factor_all          0.0588
_refine_ls_R_factor_gt           0.0401
_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^)+(0.0615P)^2^+0.1911P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1095
_refine_ls_wR_factor_ref         0.1279
_reflns_number_gt                2002
_reflns_number_total             2898
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1jm10228a.txt
_cod_data_source_block           cb24_0m
_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.

Automatic conversion script
Id: cif_fix_enum 1555 2011-01-17 13:19:09Z saulius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7206052