Aluminum containing molecular bowls and pyridinophanes: use of pyridine modules to access different molecular topologies.
Bawari, Deependra; Negi, Chandrakala; Porwal, Vishal Kumar; Ravi, Satyam; Shamasundar, K. R.; Singh, Sanjay; Dalton transactions (Cambridge, England : 2003) 48 (2019) 7442–7450; doi:10.1039/c8dt05105d

data_7049787
_publ_section_title
;
 Aluminum containing molecular bowls and pyridinophanes: use of pyridine
 modules to access different molecular topologies.
;
_journal_issue                   21
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7442
_journal_page_last               7450
_journal_paper_doi               10.1039/c8dt05105d
_journal_volume                  48
_journal_year                    2019
_chemical_formula_moiety         'C27 H57 Al3 N6 Si4'
_chemical_formula_sum            'C27 H57 Al3 N6 Si4'
_chemical_formula_weight         659.08
_space_group_crystal_system      orthorhombic
_space_group_IT_number           60
_space_group_name_Hall           '-P 2n 2ab'
_space_group_name_H-M_alt        'P b c n'
_symmetry_space_group_name_Hall  '-P 2n 2ab'
_symmetry_space_group_name_H-M   'P b c n'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2016-12-06
_audit_creation_method
;
Olex2 1.2
(compiled 2016.11.07 svn.r3352 for OlexSys, GUI svn.r5261)
;
_audit_update_record
;
2018-03-13 deposited with the CCDC.    2019-04-23 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   18.013(7)
_cell_length_b                   14.239(6)
_cell_length_c                   15.420(6)
_cell_measurement_reflns_used    8042
_cell_measurement_temperature    298
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.0
_cell_volume                     3955(3)
_computing_cell_refinement
;
CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)
;
_computing_data_collection
;
CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)
;
_computing_data_reduction
;
CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)
;
_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_temperature      298
_diffrn_detector                 CCD
_diffrn_detector_area_resol_mean 13.6612
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_details
;
scan:
    Number of images: 380
               Slice: -70.0000 - 120.0000
         Image width: 0.5000
            Exp time: 5.0000
       Rotation axis: Omega
               Omega: 0.0000
                 Chi: 54.0000
                 Phi: 0.0000
                 XTD: 49.8600
              2theta: 29.8900
scan:
    Number of images: 380
               Slice: -70.0000 - 120.0000
         Image width: 0.5000
            Exp time: 5.0000
       Rotation axis: Omega
               Omega: 0.0000
                 Chi: 54.0000
                 Phi: 240.0000
                 XTD: 49.8600
              2theta: 29.8900
scan:
    Number of images: 380
               Slice: -70.0000 - 120.0000
         Image width: 0.5000
            Exp time: 5.0000
       Rotation axis: Omega
               Omega: 0.0000
                 Chi: 54.0000
                 Phi: 120.0000
                 XTD: 49.8600
              2theta: 29.8900
;
_diffrn_measurement_device
;
XtaLABmini: Fixed Chi 2 circle
;
_diffrn_measurement_device_type  'Rigaku Mercury375R (2x2 bin mode)'
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_measurement_specimen_support Fiber
_diffrn_orient_matrix_type       d*Trek
_diffrn_orient_matrix_UB_11      0.011955
_diffrn_orient_matrix_UB_12      -0.031540
_diffrn_orient_matrix_UB_13      0.061600
_diffrn_orient_matrix_UB_21      0.038869
_diffrn_orient_matrix_UB_22      0.048880
_diffrn_orient_matrix_UB_23      0.017484
_diffrn_orient_matrix_UB_31      -0.043422
_diffrn_orient_matrix_UB_32      0.026636
_diffrn_orient_matrix_UB_33      0.022065
_diffrn_radiation_monochromator  'Graphite Monochromator'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0986
_diffrn_reflns_av_unetI/netI     0.0774
_diffrn_reflns_Laue_measured_fraction_full 0.989
_diffrn_reflns_Laue_measured_fraction_max 0.989
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            11008
_diffrn_reflns_point_group_measured_fraction_full 0.989
_diffrn_reflns_point_group_measured_fraction_max 0.989
_diffrn_reflns_theta_full        25.027
_diffrn_reflns_theta_max         25.027
_diffrn_reflns_theta_min         3.152
_diffrn_source                   'Sealed Tube'
_diffrn_source_current           12.0
_diffrn_source_power             0.6
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.242
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.711
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Blessing 1995'
_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    1.107
_exptl_crystal_density_method    "'not measured'"
_exptl_crystal_description       block
_exptl_crystal_F_000             1424
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.357
_refine_diff_density_min         -0.333
_refine_diff_density_rms         0.060
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         3455
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0910
_refine_ls_R_factor_gt           0.0669
_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^)+(0.0994P)^2^+2.1880P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1791
_refine_ls_wR_factor_ref         0.2081
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2471
_reflns_number_total             3455
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8dt05105d2.cif
_cod_data_source_block           compound5
_cod_depositor_comments
'Adding full bibliography for 7049785--7049788.cif.'
_cod_database_code               7049787
_shelx_estimated_absorpt_t_max   0.953
_shelx_estimated_absorpt_t_min   0.953
_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. Others
 Fixed Sof: H3A(0.5) H3B(0.5) H3C(0.5)
3.a Aromatic/amide H refined with riding coordinates:
 C8(H8), C9(H9), C10(H10)
3.b Idealised Me refined as rotating group:
 C1(H1A,H1B,H1C), C2(H2A,H2B,H2C), C3(H3A,H3B,H3C), C4(H4A,H4B,H4C), C5(H5A,
 H5B,H5C), C6(H6A,H6B,H6C), C12(H12A,H12B,H12C), C13(H13A,H13B,H13C), C14(H14A,
 H14B,H14C)
;
_shelx_res_checksum              6542
_shelx_shelxl_version_number     2014/7
_olex2_submission_special_instructions 'No special instructions were received'