The odd–even effect of alkyl chain in organic room temperature phosphorescence luminogens and the corresponding in vivo imaging
Yang, Jie; Gao, Heqi; Wang, Yunsheng; Yu, Yun; Gong, Yanbin; Fang, Manman; Ding, Dan; Hu, Wenping; Tang, Ben Zhong; Li, Zhen; Materials Chemistry Frontiers 3 (2019) 1391–; doi:10.1039/C9QM00108E

data_1554645
_publ_section_title
;
 The odd--even effect of alkyl chain in organic room temperature
 phosphorescence luminogens and the corresponding in vivo imaging
;
_journal_issue                   7
_journal_name_full               'Materials Chemistry Frontiers'
_journal_page_first              1391
_journal_paper_doi               10.1039/C9QM00108E
_journal_volume                  3
_journal_year                    2019
_chemical_formula_sum            'C18 H21 N O2 S'
_chemical_formula_weight         315.42
_space_group_crystal_system      trigonal
_space_group_IT_number           161
_space_group_name_Hall           'R 3 -2"c'
_space_group_name_H-M_alt        'R 3 c :H'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2018-11-15 deposited with the CCDC.	2019-04-02 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            18
_cell_length_a                   26.477(7)
_cell_length_b                   26.477(7)
_cell_length_c                   12.475(3)
_cell_measurement_reflns_used    1607
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      18.37
_cell_measurement_theta_min      2.66
_cell_volume                     7574(3)
_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-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0914
_diffrn_reflns_av_unetI/netI     0.0705
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       32
_diffrn_reflns_limit_h_min       -30
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -32
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            18252
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.623
_diffrn_reflns_theta_min         1.538
_exptl_absorpt_coefficient_mu    0.199
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.245
_exptl_crystal_density_meas      1.245
_exptl_crystal_description       needle
_exptl_crystal_F_000             3024
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.040
_exptl_crystal_size_min          0.020
_refine_diff_density_max         0.311
_refine_diff_density_min         -0.154
_refine_diff_density_rms         0.040
_refine_ls_abs_structure_details
; 
 Flack x determined using 719 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   -0.10(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.970
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     200
_refine_ls_number_reflns         3172
_refine_ls_number_restraints     13
_refine_ls_restrained_S_all      0.995
_refine_ls_R_factor_all          0.1104
_refine_ls_R_factor_gt           0.0531
_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^)+(0.0726P)^2^+0.5945P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1176
_refine_ls_wR_factor_ref         0.1427
_reflns_Friedel_coverage         0.979
_reflns_Friedel_fraction_full    0.988
_reflns_Friedel_fraction_max     0.988
_reflns_number_gt                1926
_reflns_number_total             3172
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9qm00108e2.cif
_cod_data_source_block           mo_170322j_0m
_cod_original_cell_volume        7574(4)
_cod_database_code               1554645
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.961
_shelx_estimated_absorpt_t_max   0.996
_shelx_res_checksum              77007
_shelx_hkl_checksum              67459