A room temperature nematic luminescent liquid crystal: a FRET donor for amplified circularly polarized luminescence.
Xiao, Yao; Pan, Xue-Lan; Cao, Xiang-Jian; Qi, Xin; Qiu, Sheng-Qi; Yu, Zhen-Qiang; Chemical communications (Cambridge, England) 61 (2025) 17922–17925; doi:10.1039/d5cc04827c

data_7135066
_publ_section_title
;
 A room temperature nematic luminescent liquid crystal: a FRET donor for
 amplified circularly polarized luminescence.
;
_journal_issue                   91
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              17922
_journal_page_last               17925
_journal_paper_doi               10.1039/d5cc04827c
_journal_volume                  61
_journal_year                    2025
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C25 H31 N O2'
_chemical_formula_sum            'C25 H31 N O2'
_chemical_formula_weight         377.51
_space_group_crystal_system      monoclinic
_space_group_IT_number           9
_space_group_name_Hall           'C -2yc'
_space_group_name_H-M_alt        'C 1 c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2024-03-13
_audit_creation_method
;
Olex2 1.5
(compiled 2022.04.07 svn.rca3783a0 for OlexSys, GUI svn.r6498)
;
_audit_update_record
;
2025-08-20 deposited with the CCDC.	2025-10-03 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 94.133(4)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   45.525(5)
_cell_length_b                   7.0641(7)
_cell_length_c                   6.6022(7)
_cell_measurement_reflns_used    4590
_cell_measurement_temperature    144.00
_cell_measurement_theta_max      26.15
_cell_measurement_theta_min      2.69
_cell_volume                     2117.7(4)
_computing_cell_refinement       'SAINT V8.40B (Bruker, 2019)'
_computing_data_collection       'APEX5 V2023.9-2 (Bruker, 2023)'
_computing_data_reduction        'SAINT V8.40B (Bruker, 2019)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2019/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      144.00
_diffrn_detector                 CPAD
_diffrn_detector_area_resol_mean 7.41
_diffrn_detector_type            'Bruker PHOTON II'
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Bruker D8 VENTURE TXS PHOTON II'
_diffrn_measurement_method       '\w and \f shutterless scans'
_diffrn_measurement_specimen_support 'nylon loop'
_diffrn_radiation_monochromator  'Helios Multi-layer Optic'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1088
_diffrn_reflns_av_unetI/netI     0.0667
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       58
_diffrn_reflns_limit_h_min       -58
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            33984
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.541
_diffrn_reflns_theta_min         2.691
_diffrn_source                   TXS
_diffrn_source_current           1.4
_diffrn_source_power             0.07
_diffrn_source_type              'Rotaing Anode'
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.074
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6775
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1381 before and 0.0892 after correction.
The Ratio of minimum to maximum transmission is 0.9087.
The \l/2 correction factor is Not present.
;
_exptl_crystal_density_diffrn    1.184
_exptl_crystal_description       block
_exptl_crystal_F_000             816
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.252
_refine_diff_density_min         -0.248
_refine_diff_density_rms         0.054
_refine_ls_abs_structure_details
;
 Flack x determined using 1327 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.5(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     255
_refine_ls_number_reflns         4874
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.0932
_refine_ls_R_factor_gt           0.0642
_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^)+(0.0703P)^2^+2.0335P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1498
_refine_ls_wR_factor_ref         0.1680
_reflns_Friedel_coverage         0.995
_reflns_Friedel_fraction_full    0.998
_reflns_Friedel_fraction_max     0.991
_reflns_number_gt                3454
_reflns_number_total             4874
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5cc04827c2.cif
_cod_data_source_block           mo_240222c_yzq_xy_5c_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_diffrn_radiation_probe' value 'X-ray' was changed to
'x-ray' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 8170 2020-07-09 18:12:32Z antanas 

 Adding full bibliography for 7135066.cif.
;
_cod_database_code               7135066
_shelx_shelxl_version_number     2019/3
_shelx_estimated_absorpt_t_max   0.994
_shelx_estimated_absorpt_t_min   0.991
_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:
 C3(H3A,H3B), C5(H5A,H5B), C4(H4A,H4B), C2(H2A,H2B), C24(H24A,H24B), C21(H21A,
 H21B), C22(H22A,H22B), C23(H23A,H23B)
2.b Aromatic/amide H refined with riding coordinates:
 C10(H10), C8(H8), C16(H16), C7(H7), C17(H17), C20(H20), C14(H14), C19(H19),
 C11(H11)
2.c Idealised Me refined as rotating group:
 C1(H1A,H1B,H1C), C25(H25A,H25B,H25C)
;
_shelx_res_checksum              39028
_shelx_hkl_checksum              79371
_olex2_submission_special_instructions 'No special instructions were received'
_site                            XU