A novel strategy for realizing dual state fluorescence and low-temperature phosphorescence
Lei, Yunxiang; Dai, Wenbo; Liu, Zhiqi; Guo, Shuai; Cai, Zhengxu; Shi, Jianbing; Zheng, Xiaoyan; Zhi, Junge; Tong, Bin; Dong, Yuping; Materials Chemistry Frontiers 3 (2019) 284–; doi:10.1039/C8QM00613J

data_1554249
_publ_section_title
;
 A novel strategy for realizing dual state fluorescence and
 low-temperature phosphorescence
;
_journal_issue                   2
_journal_name_full               'Materials Chemistry Frontiers'
_journal_page_first              284
_journal_paper_doi               10.1039/C8QM00613J
_journal_volume                  3
_journal_year                    2019
_chemical_formula_moiety         'C3 H7 N O, C29 H20 N2'
_chemical_formula_sum            'C32 H27 N3 O'
_chemical_formula_weight         469.56
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2018-04-11
_audit_creation_method
;
Olex2 1.2
(compiled 2018.04.03 svn.r3497 for OlexSys, GUI svn.r5486)
;
_audit_update_record
;
2018-07-05 deposited with the CCDC.
2018-12-11 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 93.56(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   23.528(5)
_cell_length_b                   6.0582(12)
_cell_length_c                   17.914(4)
_cell_measurement_reflns_used    7737
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      27.4816
_cell_measurement_theta_min      1.7344
_cell_volume                     2548.5(9)
_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    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      153.15
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'multiwire proportional'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1295
_diffrn_reflns_av_unetI/netI     0.0810
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            23821
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        24.999
_diffrn_reflns_theta_max         24.999
_diffrn_reflns_theta_min         0.867
_exptl_absorpt_coefficient_mu    0.075
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.7059
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrystalClear (Rigaku Inc., 2008)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.224
_exptl_crystal_description       needle
_exptl_crystal_F_000             992
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.926
_refine_diff_density_min         -0.735
_refine_diff_density_rms         0.216
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   2.771
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     338
_refine_ls_number_reflns         4461
_refine_ls_number_restraints     468
_refine_ls_restrained_S_all      2.648
_refine_ls_R_factor_all          0.2738
_refine_ls_R_factor_gt           0.2562
_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^)+(0.2000P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.6218
_refine_ls_wR_factor_ref         0.6310
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4012
_reflns_number_total             4461
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8qm00613j2.cif
_cod_data_source_block           bwn18056_pl
_cod_database_code               1554249
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_max   0.999
_shelx_estimated_absorpt_t_min   0.990
_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. Uiso/Uaniso restraints and constraints
All non-hydrogen atoms have similar U: within 1.7A with sigma of 0.01 and sigma
for terminal atoms of 0.01
All non-hydrogen atoms restrained to be isotropic: with sigma of 0.01 and sigma
for terminal atoms of 0.01
3. Others
 Sof(C31A)=Sof(H31D)=Sof(H31E)=Sof(H31F)=1-FVAR(1)
 Sof(C31)=Sof(H31A)=Sof(H31B)=Sof(H31C)=FVAR(1)
4.a Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C4(H4), C5(H5), C6(H6), C8(H8), C9(H9), C12(H12), C13(H13),
 C14(H14), C15(H15), C16(H16), C18(H18), C19(H19), C21(H21), C22(H22), C24(H24),
  C25(H25), C27(H27), C28(H28), C32(H32)
4.b Idealised Me refined as rotating group:
 C30(H30A,H30B,H30C), C31(H31A,H31B,H31C), C31A(H31D,H31E,H31F)
;
_olex2_submission_special_instructions 'No special instructions were received'