5-(2,6-Bis((E)-4-(dimethylamino)styryl)-1-ethylpyridin-4(1H)-ylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione: aggregation-induced emission, polymorphism, mechanochromism, and thermochromism
Zhou, Yibin; Qian, Lebin; Liu, Miaochang; Huang, Xiaobo; Wang, Yuxiang; Cheng, Yixiang; Gao, Wenxia; Wu, Ge; Wu, Huayue; Journal of Materials Chemistry C 5 (2017) 9264–; doi:10.1039/C7TC02746J

data_7236862
_publ_section_title
;
 5-(2,6-Bis((E)-4-(dimethylamino)styryl)-1-ethylpyridin-4(1H)-ylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione:
 aggregation-induced emission, polymorphism, mechanochromism, and
 thermochromism
;
_journal_issue                   36
_journal_name_full               'Journal of Materials Chemistry C'
_journal_page_first              9264
_journal_paper_doi               10.1039/C7TC02746J
_journal_volume                  5
_journal_year                    2017
_chemical_formula_moiety         'C33 H37 N3 O4'
_chemical_formula_sum            'C33 H37 N3 O4'
_chemical_formula_weight         539.65
_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     dual
_audit_creation_date             2016-11-08
_audit_creation_method
;
Olex2 1.2
(compiled 2016.09.09 svn.r3337 for OlexSys, GUI svn.r5227)
;
_audit_update_record
;
2017-06-01 deposited with the CCDC.
2017-08-07 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 98.262(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.2361(14)
_cell_length_b                   24.602(3)
_cell_length_c                   10.5445(14)
_cell_measurement_reflns_used    3247
_cell_measurement_temperature    130
_cell_measurement_theta_max      26.354
_cell_measurement_theta_min      2.47
_cell_volume                     2884.6(6)
_computing_cell_refinement       'SAINT v7.68A (Bruker, 2009)'
_computing_data_reduction        'SAINT v7.68A (Bruker, 2009)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      130
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0587
_diffrn_reflns_av_unetI/netI     0.0624
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            23416
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         27.506
_diffrn_reflns_theta_min         1.655
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6242
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.0688 before and 0.0418 after correction.
The Ratio of minimum to maximum transmission is 0.8372.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.243
_exptl_crystal_description       block
_exptl_crystal_F_000             1152
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.199
_refine_diff_density_min         -0.226
_refine_diff_density_rms         0.044
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.975
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     368
_refine_ls_number_reflns         6623
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.975
_refine_ls_R_factor_all          0.0955
_refine_ls_R_factor_gt           0.0460
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0538P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0974
_refine_ls_wR_factor_ref         0.1150
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4011
_reflns_number_total             6623
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7tc02746j2.cif
_cod_data_source_block           dm16734
_cod_database_code               7236862
_shelx_estimated_absorpt_t_max   0.984
_shelx_estimated_absorpt_t_min   0.977
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C24(H24A,H24B)
2.b Aromatic/amide H refined with riding coordinates:
 C1(H1), C2(H2), C4(H4), C5(H5), C7(H7), C8(H8), C10(H10), C12(H12), C14(H14),
 C15(H15), C17(H17), C18(H18), C20(H20), C21(H21)
2.c Idealised Me refined as rotating group:
 C22(H22A,H22B,H22C), C23(H23A,H23B,H23C), C25(H25A,H25B,H25C), C26(H26A,H26B,
 H26C), C27(H27A,H27B,H27C), C31(H31A,H31B,H31C), C32(H32A,H32B,H32C)
;
_shelx_res_checksum              36448
_shelx_hkl_checksum              73131
_shelx_shelxl_version_number     2016/6
_olex2_submission_special_instructions 'No special instructions were received'