Photoresponsive porous materials: the design and synthesis of photochromic diarylethene-based linkers and a metal-organic framework
Dinesh G. (Dan) Patel; Ian M. Walton; Jordan M. Cox; Cody J. Gleason; David R. Butzer; Jason B. Benedict; Chem.Commun. 50 (2014) 2653–; doi:10.1039/c3cc49666j

data_7111933
_publ_section_title
;
 Photoresponsive porous materials: the design and synthesis of
 photochromic diarylethene-based linkers and a metal-organic framework
;
_journal_name_full               Chem.Commun.
_journal_page_first              2653
_journal_paper_doi               10.1039/c3cc49666j
_journal_volume                  50
_journal_year                    2014
_chemical_formula_moiety         'C26 H20 Br2 S2'
_chemical_formula_sum            'C26 H20 Br2 S2'
_chemical_formula_weight         556.36
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2013-11-15
_audit_creation_method
;
Olex2 1.2
(compiled 2013.11.15 svn.r2834 for OlexSys, GUI svn.r4707)
;
_cell_angle_alpha                90
_cell_angle_beta                 94.3179(8)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.3043(3)
_cell_length_b                   21.4919(8)
_cell_length_c                   11.0020(4)
_cell_measurement_reflns_used    9884
_cell_measurement_temperature    90
_cell_measurement_theta_max      33.148
_cell_measurement_theta_min      2.391
_cell_volume                     2193.79(13)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'XS (Sheldrick, 2008)'
_diffrn_ambient_temperature      90
_diffrn_detector                 'Bruker APEX2 area detector'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CCD area detector'
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker SMART APEX2 area detector'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'mirror optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_xray_symbol    K-L~3~
_diffrn_reflns_av_R_equivalents  0.0258
_diffrn_reflns_av_unetI/netI     0.0209
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            17072
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         33.154
_diffrn_reflns_theta_min         1.895
_diffrn_source                   'microfocus rotating anode'
_diffrn_source_type              'Incoatec I\ms'
_exptl_absorpt_coefficient_mu    3.897
_exptl_absorpt_correction_T_max  0.7465
_exptl_absorpt_correction_T_min  0.7142
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2012/1 (Bruker,2012) was used for absorption correction. wR2(int) was 0.0728 before and 0.0339 after correction. The Ratio of minimum to maximum transmission is 0.9567. The \l/2 correction factor is 0.0015.'
_exptl_crystal_colour            'clear colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.684
_exptl_crystal_description       block
_exptl_crystal_F_000             1112
_exptl_crystal_recrystallization_method
'Slow cooling of a dimethylformamide solution'
_exptl_crystal_size_max          0.05
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.628
_refine_diff_density_min         -0.266
_refine_diff_density_rms         0.078
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.085
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     138
_refine_ls_number_reflns         4186
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.085
_refine_ls_R_factor_all          0.0255
_refine_ls_R_factor_gt           0.0219
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0221P)^2^+2.9004P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0560
_refine_ls_wR_factor_ref         0.0577
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3845
_reflns_number_total             4186
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c3cc49666j.txt
_cod_data_source_block           6a
_cod_database_code               7111933
_shelxl_version_number           2013-3
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C1(H1), C3(H3), C4(H4), C9(H9)
2.b Idealised Me refined as rotating group:
 C11(H11A,H11B,H11C), C13(H13A,H13B,H13C)
;