Synthesis of heteroatomic bridged paracyclophanes.
Reuter, K.; Maas, R. G. M.; Reuter, A.; Kilgenstein, F.; Asfaha, Y.; von Hänisch, C; Dalton transactions (Cambridge, England : 2003) 46 (2017) 4530–4541; doi:10.1039/c7dt00321h

data_7042370
_publ_section_title
;
 Synthesis of heteroatomic bridged paracyclophanes.
;
_journal_issue                   14
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4530
_journal_page_last               4541
_journal_paper_doi               10.1039/c7dt00321h
_journal_volume                  46
_journal_year                    2017
_chemical_formula_moiety         'C18 H32 Cl2 Si2'
_chemical_formula_sum            'C18 H32 Cl2 Si2'
_chemical_formula_weight         375.51
_chemical_name_systematic        1,4-bis(diisopropylsilylchloro)benzene
_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'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_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
;
2017-01-13 deposited with the CCDC.
2017-02-24 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 103.242(4)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   8.7688(4)
_cell_length_b                   10.4447(5)
_cell_length_c                   11.9094(6)
_cell_measurement_reflns_used    2251
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      53.46
_cell_measurement_theta_min      4.71
_cell_volume                     1061.75(9)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  IPDS2t
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0522
_diffrn_reflns_av_unetI/netI     0.0343
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            12145
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.000
_diffrn_reflns_theta_max         26.732
_diffrn_reflns_theta_min         1.757
_exptl_absorpt_coefficient_mu    0.415
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.175
_exptl_crystal_description       plank
_exptl_crystal_F_000             404
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.216
_refine_diff_density_min         -0.313
_refine_diff_density_rms         0.059
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.961
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     104
_refine_ls_number_reflns         2251
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.961
_refine_ls_R_factor_all          0.0426
_refine_ls_R_factor_gt           0.0319
_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^)+(0.0573P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0815
_refine_ls_wR_factor_ref         0.0846
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1814
_reflns_number_total             2251
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7dt00321h1.cif
_cod_data_source_block           bamm3_p21c
_cod_depositor_comments
'Adding full bibliography for 7042367--7042376.cif.'
_cod_database_code               7042370
_shelxl_version_number           2014-3
_shelx_estimated_absorpt_t_max   0.976
_shelx_estimated_absorpt_t_min   0.879
_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:
 C1(H1), C7(H7)
2.b Aromatic/amide H refined with riding coordinates:
 C5(H5), C6(H6)
2.c Idealised Me refined as rotating group:
 C2(H2A,H2B,H2C), C3(H3A,H3B,H3C), C8(H8A,H8B,H8C), C9(H9A,H9B,H9C)
;
_olex2_submission_special_instructions 'No special instructions were received'