Correlation of Structure with Crystalline to Amorphous Phase Transitions of 1,3,6-Substituted Fulvene Derived Molecular Glasses.
Brown, Loren C.; Peloquin, Andrew; Godman, Nicholas P.; Balaich, Gary James; Iacono, Scott T.; The Journal of organic chemistry  (2020) –; doi:10.1021/acs.joc.0c01014

data_4038625
_publ_section_title
;
 Correlation of Structure with Crystalline to Amorphous Phase Transitions
 of 1,3,6-Substituted Fulvene Derived Molecular Glasses.
;
_journal_name_full               'The Journal of organic chemistry'
_journal_paper_doi               10.1021/acs.joc.0c01014
_journal_year                    2020
_chemical_formula_moiety         'C21 H20'
_chemical_formula_sum            'C21 H20'
_chemical_formula_weight         272.37
_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
_audit_creation_date             2020-03-05
_audit_creation_method
;
Olex2 1.3
(compiled Nov 21 2019 18:26:39 for OlexSys, GUI svn.r6003)
;
_cell_angle_alpha                90
_cell_angle_beta                 99.0150(10)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   11.0596(2)
_cell_length_b                   8.46810(10)
_cell_length_c                   33.2511(5)
_cell_measurement_reflns_used    9887
_cell_measurement_temperature    100.0
_cell_measurement_theta_max      70.891
_cell_measurement_theta_min      2.691
_cell_volume                     3075.62(8)
_computing_cell_refinement       'SAINT v8.38A (Bruker, 2017)'
_computing_data_collection       'APEX3 v2017.3-0 (Bruker, 2017)'
_computing_data_reduction        'SAINT v8.38A (Bruker, 2017)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL  (Sheldrick, 2008)'
_computing_structure_solution    'XT (Sheldrick, 2015)'
_diffrn_ambient_temperature      100.0
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CCD Area Detector'
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device       'Fixed Chi Three-Circle Diffractometer'
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0329
_diffrn_reflns_av_unetI/netI     0.0190
_diffrn_reflns_Laue_measured_fraction_full 0.992
_diffrn_reflns_Laue_measured_fraction_max 0.992
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       35
_diffrn_reflns_limit_l_min       -39
_diffrn_reflns_number            58081
_diffrn_reflns_point_group_measured_fraction_full 0.992
_diffrn_reflns_point_group_measured_fraction_max 0.992
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         68.242
_diffrn_reflns_theta_min         2.691
_exptl_absorpt_coefficient_mu    0.494
_exptl_absorpt_correction_T_max  0.7535
_exptl_absorpt_correction_T_min  0.6547
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.0805 before and 0.0527 after correction. The Ratio of minimum to maximum transmission is 0.8689. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            orange
_exptl_crystal_colour_primary    orange
_exptl_crystal_density_diffrn    1.176
_exptl_crystal_description       prism
_exptl_crystal_F_000             1168
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.231
_refine_diff_density_min         -0.182
_refine_diff_density_rms         0.034
_refine_ls_extinction_coef       0.00072(10)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2016/6 (Sheldrick 2016)'
_refine_ls_goodness_of_fit_ref   1.076
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     384
_refine_ls_number_reflns         5589
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.076
_refine_ls_R_factor_all          0.0405
_refine_ls_R_factor_gt           0.0383
_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^)+(0.0332P)^2^+1.5053P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0925
_refine_ls_wR_factor_ref         0.0938
_reflns_Friedel_coverage         0.000
_reflns_number_gt                5261
_reflns_number_total             5589
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo0c01014_si_002.cif
_cod_data_source_block           6isopropfulv
_cod_database_code               4038625
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.971
_shelx_estimated_absorpt_t_min   0.899
_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:
 C19(H19), C19A(H19A)
2.b Aromatic/amide H refined with riding coordinates:
 C2(H2), C4(H4), C6(H6), C8(H8), C9(H9), C10(H10), C11(H11), C12(H12),
 C14(H14), C15(H15), C16(H16), C17(H17), C18(H18), C2A(H2A), C4A(H4A), C6A(H6A),
  C8A(H8A), C9A(H9A), C10A(H10A), C11A(H11A), C12A(H12A), C14A(H14A),
 C15A(H15A), C16A(H16A), C17A(H17A), C18A(H18A)
2.c Idealised Me refined as rotating group:
 C20(H20A,H20B,H20C), C21(H21A,H21B,H21C), C20A(H20D,H20E,H20F), C21A(H21D,
 H21E,H21F)
;
_shelx_res_checksum              2729
_shelx_hkl_checksum              21924
_olex2_submission_special_instructions 'No special instructions were received'