Thermodynamic Characterization of Halide-π Interactions in Solution Using "Two-Wall" Aryl Extended Calix[4]pyrroles as Model System.
Adriaenssens, Louis; Gil-Ramírez, Guzmán; Frontera, Antonio; Quiñonero, David; Escudero-Adán, Eduardo C; Ballester, Pablo; Journal of the American Chemical Society 136 (2014) 3208–; doi:10.1021/ja412098v

data_4120652
_publ_section_title
;
 Thermodynamic Characterization of Halide-\p Interactions in Solution
 Using &quot;Two-Wall&quot; Aryl Extended Calix[4]pyrroles as Model
 System.
;
_journal_issue                   8
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              3208
_journal_paper_doi               10.1021/ja412098v
_journal_volume                  136
_journal_year                    2014
_chemical_formula_sum            'C16 H15 Br N2'
_chemical_formula_weight         315.21
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 109.139(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   15.485(2)
_cell_length_b                   17.588(2)
_cell_length_c                   10.7656(16)
_cell_measurement_reflns_used    2379
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.38
_cell_measurement_theta_min      2.78
_cell_volume                     2769.9(6)
_computing_cell_refinement       'Bruker APEX2 v2011.4-0'
_computing_data_collection       'Bruker APEX2 v2011.4-0'
_computing_data_reduction        'Bruker SAINT V7.60A'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXS-97 (Sheldrick, 2008)'
_computing_structure_solution    Sir2011
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 512
_diffrn_detector_type            '4K CCD area detector APEX II'
_diffrn_measured_fraction_theta_full 0.970
_diffrn_measured_fraction_theta_max 0.863
_diffrn_measurement_device_type  'Kappa 4-axis goniometer bruker-nonius'
_diffrn_measurement_method
;
 Fullsphere data collection, phi and omega scans
;
_diffrn_measurement_specimen_support 'magnetic support with MicroMount'
_diffrn_radiation_monochromator  'Multilayer Montel 200 mirrors'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1232
_diffrn_reflns_av_sigmaI/netI    0.1894
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            18099
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         32.84
_diffrn_reflns_theta_min         2.78
_diffrn_source                   'Rotating anode X-ray tube'
_diffrn_source_current           70
_diffrn_source_power             50
_diffrn_source_size              '3 mm x 0.3 mm fine focus'
_diffrn_source_type              'Bruker-Nonius FR 591'
_exptl_absorpt_coefficient_mu    2.955
_exptl_absorpt_correction_T_max  0.7565
_exptl_absorpt_correction_T_min  0.3196
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
; 
 SADABS Version 2008/1 Bruker-Nonius
 Blessing, Acta Cryst. (1995) A51 33-38
;
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.512
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1280
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.645
_refine_diff_density_min         -0.929
_refine_diff_density_rms         0.157
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.965
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     345
_refine_ls_number_reflns         8894
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.965
_refine_ls_R_factor_all          0.1994
_refine_ls_R_factor_gt           0.0825
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0937P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1694
_refine_ls_wR_factor_ref         0.2137
_reflns_number_gt                3983
_reflns_number_total             8894
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja412098v_si_020.cif
_cod_data_source_block           gg120p21c
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_cell_volume        2769.9(7)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4120652