Tuning the optical properties of spiro-centered charge-transfer dyes by extending the donor or acceptor part
Wössner, Jan S.; Grenz, David C.; Kratzert, Daniel; Esser, Birgit; Organic Chemistry Frontiers 6 (2019) 3649–; doi:10.1039/C9QO01134J

data_1555203
_publ_section_title
;
 Tuning the optical properties of spiro-centered charge-transfer dyes by
 extending the donor or acceptor part
;
_journal_issue                   21
_journal_name_full               'Organic Chemistry Frontiers'
_journal_page_first              3649
_journal_paper_doi               10.1039/C9QO01134J
_journal_volume                  6
_journal_year                    2019
_chemical_formula_moiety         'C28 H19 N3 O2'
_chemical_formula_sum            'C28 H19 N3 O2'
_chemical_formula_weight         429.46
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2018-07-16
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2018-07-16 deposited with the CCDC.	2019-09-30 downloaded from the CCDC.
;
_cell_angle_alpha                79.646(11)
_cell_angle_beta                 71.931(19)
_cell_angle_gamma                81.249(16)
_cell_formula_units_Z            2
_cell_length_a                   8.360(5)
_cell_length_b                   9.772(4)
_cell_length_c                   13.225(6)
_cell_measurement_reflns_used    8694
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.491
_cell_measurement_theta_min      2.502
_cell_volume                     1005.0(9)
_computing_cell_refinement       'SAINT V8.38A (Madison, 2016)'
_computing_data_collection       'Bruker APEX2 software'
_computing_data_reduction        'SAINT V8.38A (Madison, 2016)'
_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    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      99.96
_diffrn_detector                 'Bruker APEX2 area detector'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CCD area detector'
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device       'fixed-chi two circle goniometer'
_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           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0266
_diffrn_reflns_av_unetI/netI     0.0223
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            25689
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.537
_diffrn_reflns_theta_min         1.636
_diffrn_source                   'microfocus sealed X-ray tube'
_diffrn_source_current           50
_diffrn_source_type              'Incoatec Mo I\ms'
_diffrn_source_voltage           0.6
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.7041
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.0784 before and 0.0428 after correction. The Ratio of minimum to maximum transmission is 0.9443. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            red
_exptl_crystal_colour_primary    red
_exptl_crystal_density_diffrn    1.419
_exptl_crystal_description       plate
_exptl_crystal_F_000             448
_exptl_crystal_recrystallization_method
'The material was recrystallised from a mixture of DCM and methanol  by solvent layering'
_exptl_crystal_size_max          0.17
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.464
_refine_diff_density_min         -0.212
_refine_diff_density_rms         0.060
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.071
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     300
_refine_ls_number_reflns         4614
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.071
_refine_ls_R_factor_all          0.0594
_refine_ls_R_factor_gt           0.0511
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0805P)^2^+0.4310P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1406
_refine_ls_wR_factor_ref         0.1468
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3897
_reflns_number_total             4614
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9qo01134j2.cif
_cod_data_source_block           esser_jw136_0m_a
_cod_original_cell_volume        1004.9(8)
_cod_database_code               1555203
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.992
_shelx_estimated_absorpt_t_min   0.985
_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:
 C4(H4), C7(H7), C6(H6), C11(H11), C12(H12), C14(H14), C15(H15), C20(H20),
 C21(H21), C22(H22), C24(H24), C25(H25), C26(H26)
2.b Idealised Me refined as rotating group:
 C17(H17A,H17B,H17C), C18(H18A,H18B,H18C)
;
_shelx_res_checksum              79130
_shelx_hkl_checksum              36721
_olex2_diffrn_ambient_temperature_device 'Oxford Cryosystems 800'
_olex2_exptl_crystal_mounting_method
'The crystal was mounted on a MITIGEN holder in perfluoroether oil'
_olex2_submission_special_instructions 'No special instructions were received'