Rhenium(I) based irregular pentagonal-shaped metallacavitands
bhol, Mamina; Shankar, Bhaskaran; Malaichamy, Sathiyendiran; Dalton Transactions  (2018) –; doi:10.1039/C8DT00574E

data_7045725
_publ_section_title
;
 Rhenium(I) based irregular pentagonal-shaped metallacavitands
;
_journal_name_full               'Dalton Transactions'
_journal_paper_doi               10.1039/C8DT00574E
_journal_year                    2018
_chemical_formula_moiety         'C37 H28 N4'
_chemical_formula_sum            'C37 H28 N4'
_chemical_formula_weight         528.63
_space_group_crystal_system      tetragonal
_space_group_IT_number           81
_space_group_name_Hall           'P -4'
_space_group_name_H-M_alt        'P -4'
_symmetry_space_group_name_Hall  'P -4'
_symmetry_space_group_name_H-M   'P -4'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2017-11-24 deposited with the CCDC.
2018-02-23 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   18.3763(10)
_cell_length_b                   18.3763(10)
_cell_length_c                   4.4365(2)
_cell_measurement_reflns_used    3343
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      24.74
_cell_measurement_theta_min      2.48
_cell_volume                     1498.15(13)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0158
_diffrn_reflns_av_unetI/netI     0.0820
_diffrn_reflns_Laue_measured_fraction_full 0.993
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       4
_diffrn_reflns_limit_l_min       -5
_diffrn_reflns_number            2626
_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        25.009
_diffrn_reflns_theta_max         25.009
_diffrn_reflns_theta_min         2.478
_exptl_absorpt_coefficient_mu    0.070
_exptl_absorpt_correction_T_max  0.997
_exptl_absorpt_correction_T_min  0.996
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.172
_exptl_crystal_description       needle
_exptl_crystal_F_000             556
_exptl_crystal_size_max          0.060
_exptl_crystal_size_mid          0.040
_exptl_crystal_size_min          0.040
_refine_diff_density_max         0.164
_refine_diff_density_min         -0.144
_refine_diff_density_rms         0.034
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   3(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.062
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     187
_refine_ls_number_reflns         2542
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.062
_refine_ls_R_factor_all          0.0668
_refine_ls_R_factor_gt           0.0570
_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^)+(0.0173P)^2^+0.5852P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1371
_refine_ls_wR_factor_ref         0.1427
_reflns_Friedel_coverage         0.753
_reflns_Friedel_fraction_full    0.997
_reflns_Friedel_fraction_max     0.997
_reflns_number_gt                2216
_reflns_number_total             2542
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8dt00574e2.cif
_cod_data_source_block           MB2-82
_cod_original_cell_volume        1498.15(18)
_cod_database_code               7045725
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.996
_shelx_estimated_absorpt_t_max   0.997
_shelx_res_checksum              80614
_shelx_fab_checksum              39895