Photoinduced crystal melting with luminescence evolution based on conformational isomerisation.
Komura, Mao; Sotome, Hikaru; Miyasaka, Hiroshi; Ogawa, Takuji; Tani, Yosuke; Chemical science 14 (2023) 5302–5308; doi:10.1039/d3sc00838j

data_1568918
_publ_section_title
;
 Photoinduced crystal melting with luminescence evolution based on
 conformational isomerisation.
;
_journal_issue                   20
_journal_name_full               'Chemical science'
_journal_page_first              5302
_journal_page_last               5308
_journal_paper_doi               10.1039/d3sc00838j
_journal_volume                  14
_journal_year                    2023
_chemical_formula_moiety         'C28 H44 Br2 O4 Si2'
_chemical_formula_sum            'C28 H44 Br2 O4 Si2'
_chemical_formula_weight         660.63
_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             2022-04-15
_audit_creation_method
;
Olex2 1.3
(compiled 2020.11.12 svn.r5f609507 for OlexSys, GUI svn.r6408)
;
_audit_update_record
;
2022-07-12 deposited with the CCDC.	2023-04-20 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 98.737(2)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   15.3539(4)
_cell_length_b                   14.7515(3)
_cell_length_c                   29.2022(8)
_cell_measurement_reflns_used    20522
_cell_measurement_temperature    173
_cell_measurement_theta_max      27.8350
_cell_measurement_theta_min      1.5530
_cell_volume                     6537.3(3)
_computing_cell_refinement       'CrysAlisPro 1.171.41.122a (Rigaku OD, 2021)'
_computing_data_collection       'CrysAlisPro 1.171.41.122a (Rigaku OD, 2021)'
_computing_data_reduction        'CrysAlisPro 1.171.41.122a (Rigaku OD, 2021)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      173
_diffrn_detector                 'Rigaku HyPix-6000 area detector'
_diffrn_detector_area_resol_mean 10.0
_diffrn_detector_type            'HPC area detector'
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.823
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w    -80.00  16.00   0.50   10.45    --   -7.00 -60.00-121.00  192
  2  \w    -29.00  67.00   0.50   10.45    --   -7.00  60.00  18.00  192
  3  \w    -11.00  52.00   0.50   10.45    --   12.47 -99.00-180.00  126
  4  \w    -11.00  52.00   0.50   10.45    --   12.47 -99.00 120.00  126
  5  \w    -68.00  24.00   0.50   10.45    --   12.47 -19.00-120.00  184
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Rigaku XtaLAB Synergy-R'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.0275001000
_diffrn_orient_matrix_UB_12      -0.0212798000
_diffrn_orient_matrix_UB_13      -0.0185829000
_diffrn_orient_matrix_UB_21      -0.0361815000
_diffrn_orient_matrix_UB_22      0.0265102000
_diffrn_orient_matrix_UB_23      0.0047147000
_diffrn_orient_matrix_UB_31      0.0109734000
_diffrn_orient_matrix_UB_32      0.0340168000
_diffrn_orient_matrix_UB_33      -0.0153333000
_diffrn_radiation_monochromator  'multi-layer mirror optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0577
_diffrn_reflns_av_unetI/netI     0.0664
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.823
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       36
_diffrn_reflns_limit_l_min       -36
_diffrn_reflns_number            73988
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.823
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.598
_diffrn_reflns_theta_min         1.550
_diffrn_source                   'rotating anode X-ray generator'
_diffrn_source_type              PhotonJet-R
_exptl_absorpt_coefficient_mu    2.582
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.57637
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.41.122a (Rigaku Oxford Diffraction, 2021)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.342
_exptl_crystal_description       prism
_exptl_crystal_F_000             2736
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.15
_refine_diff_density_max         1.139
_refine_diff_density_min         -0.883
_refine_diff_density_rms         0.111
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.131
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     673
_refine_ls_number_reflns         16541
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.131
_refine_ls_R_factor_all          0.1336
_refine_ls_R_factor_gt           0.0782
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0429P)^2^+40.9639P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1829
_refine_ls_wR_factor_ref         0.1998
_reflns_Friedel_coverage         0.000
_reflns_number_gt                10230
_reflns_number_total             16541
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3sc00838j5.cif
_cod_data_source_block           OO_173K
_cod_depositor_comments
'Adding full bibliography for 1568914--1568920.cif.'
_cod_database_code               1568918
_shelx_shelxl_version_number     2018/3
_chemical_oxdiff_formula         C28H44Br2O4Si2
_chemical_oxdiff_usercomment     mk404-3-100d-2
_reflns_odcompleteness_completeness 99.96
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     26.32
_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 Ternary CH refined with riding coordinates:
 C11(H11), C12(H12), C13(H13), C20(H20), C21(H21), C22(H22), C39(H39),
 C40(H40), C41(H41), C48(H48), C49(H49), C50(H50)
2.b Aromatic/amide H refined with riding coordinates:
 C4(H4), C9(H9), C32(H32), C37(H37)
2.c Idealised Me refined as rotating group:
 C14(H14A,H14B,H14C), C15(H15A,H15B,H15C), C16(H16A,H16B,H16C), C17(H17A,H17B,
 H17C), C18(H18A,H18B,H18C), C19(H19A,H19B,H19C), C23(H23A,H23B,H23C), C24(H24A,
 H24B,H24C), C25(H25A,H25B,H25C), C26(H26A,H26B,H26C), C27(H27A,H27B,H27C),
 C28(H28A,H28B,H28C), C42(H42A,H42B,H42C), C43(H43A,H43B,H43C), C44(H44A,H44B,
 H44C), C45(H45A,H45B,H45C), C46(H46A,H46B,H46C), C47(H47A,H47B,H47C), C51(H51A,
 H51B,H51C), C52(H52A,H52B,H52C), C53(H53A,H53B,H53C), C54(H54A,H54B,H54C),
 C55(H55A,H55B,H55C), C56(H56A,H56B,H56C)
;
_shelx_res_checksum              12686
_shelx_hkl_checksum              34090
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 1.615
_oxdiff_exptl_absorpt_empirical_full_min 0.759