Interaction, bond formation or reaction between a dimethylamino group and an adjacent alkene or aldehyde group in aromatic systems controlled by remote molecular constraints
Bristow, Jonathan C.; Cliff, Stacey V. A.; Yang, Songjie; Wallis, John D.; CrystEngComm 23 (2021) 4500–4512; doi:10.1039/D1CE00377A

data_7242929
_publ_section_title
;
 Interaction, bond formation or reaction between a dimethylamino group and
 an adjacent alkene or aldehyde group in aromatic systems controlled by
 remote molecular constraints
;
_journal_issue                   25
_journal_name_full               CrystEngComm
_journal_page_first              4500
_journal_page_last               4512
_journal_paper_doi               10.1039/D1CE00377A
_journal_volume                  23
_journal_year                    2021
_chemical_formula_moiety         'C15 H12 I2'
_chemical_formula_sum            'C15 H12 I2'
_chemical_formula_weight         446.05
_chemical_melting_point          324.5(15)
_chemical_name_systematic
;
4,5-diiodo-9,9-dimethyl-9H-fluorene
;
_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             2019-09-11
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2021-03-09 deposited with the CCDC.	2021-05-27 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90.496(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.4109(2)
_cell_length_b                   9.6735(3)
_cell_length_c                   17.0655(5)
_cell_measurement_reflns_used    3895
_cell_measurement_temperature    150.01(10)
_cell_measurement_theta_max      28.9290
_cell_measurement_theta_min      2.4000
_cell_volume                     1388.45(7)
_computing_cell_refinement       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_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_environment      N~2~
_diffrn_ambient_temperature      150.01(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 15.9832
_diffrn_detector_type            Sapphire3
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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     34.00  85.00   1.00   12.50    --   16.24  37.00  90.00   51
  2  \w     19.00  46.00   1.00   12.50    --   16.24 -19.00-180.00   27
  3  \w    -50.00  12.00   1.00   12.50    --   16.24 -57.00 -30.00   62
  4  \w    -48.00  27.00   1.00   12.50    --   16.24 -57.00 120.00   75
  5  \w    -54.00 -22.00   1.00   12.50    --   16.24 -19.00-180.00   32
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Xcalibur, Sapphire3, Gemini'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.0046087000
_diffrn_orient_matrix_UB_12      -0.0325017000
_diffrn_orient_matrix_UB_13      0.0371728000
_diffrn_orient_matrix_UB_21      0.0781002000
_diffrn_orient_matrix_UB_22      0.0230040000
_diffrn_orient_matrix_UB_23      0.0091357000
_diffrn_orient_matrix_UB_31      -0.0315026000
_diffrn_orient_matrix_UB_32      0.0615668000
_diffrn_orient_matrix_UB_33      0.0161944000
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0329
_diffrn_reflns_av_unetI/netI     0.0435
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            6967
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.366
_diffrn_reflns_theta_min         2.387
_diffrn_source                   'fine-focus sealed X-ray tube'
_diffrn_source_type              'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    4.506
_exptl_absorpt_correction_T_max  0.826
_exptl_absorpt_correction_T_min  0.432
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.46 (Rigaku Oxford Diffraction, 2018)
Numerical absorption correction based on gaussian integration over
			a multifaceted crystal model
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    2.134
_exptl_crystal_description       plate
_exptl_crystal_F_000             832
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: ethyl acetate/petrol (40-60)'
_exptl_crystal_size_max          0.289
_exptl_crystal_size_mid          0.178
_exptl_crystal_size_min          0.047
_refine_diff_density_max         0.959
_refine_diff_density_min         -0.533
_refine_diff_density_rms         0.137
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.050
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     156
_refine_ls_number_reflns         2837
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.050
_refine_ls_R_factor_all          0.0366
_refine_ls_R_factor_gt           0.0289
_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^)+(0.0256P)^2^+0.0995P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0613
_refine_ls_wR_factor_ref         0.0646
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2477
_reflns_number_total             2837
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1ce00377a2.cif
_cod_data_source_block           jb264absbeam
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_chemical_melting_point' value '323-326' was changed to
'324.5(15)' -- the average value was taken and precision was
estimated.

Automatic conversion script
Id: cif_fix_values 7556 2019-12-06 15:28:31Z antanas 

 Adding full bibliography for 7242927--7242944.cif.
;
_cod_database_code               7242929
_shelx_shelxl_version_number     2016/6
_chemical_oxdiff_formula         'C15 H12 I2'
_chemical_oxdiff_usercomment     'Pale Yellow Plate'
_reflns_odcompleteness_completeness 99.93
_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 Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C4(H4), C9(H9), C10(H10), C11(H11)
2.b Idealised Me refined as rotating group:
 C14(H14A,H14B,H14C), C15(H15A,H15B,H15C)
;
_shelx_res_checksum              66656
_shelx_hkl_checksum              96397
_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 1.104
_oxdiff_exptl_absorpt_empirical_full_min 0.928