Synthesis of resorcin[4]arene cavitands by ring-closing metathesis
Parulekar, Sumedh N.; Muppalla, Kirankirti; Fronczek, Frank R.; Bisht, Kirpal S.; Chemical Communications (Cambridge, United Kingdom)  (2007) 4901–4903; doi:10.1039/b712981e

data_7102322
_publ_section_title
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 Synthesis of resorcin[4]arene cavitands by ring-closing metathesis
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_journal_coden_ASTM              CHCOFS
_journal_issue                   46
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
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_journal_page_first              4901
_journal_page_last               4903
_journal_paper_doi               10.1039/b712981e
_journal_year                    2007
_chemical_compound_source        'local laboratory'
_chemical_formula_moiety         'C88 H124 Br4 O8'
_chemical_formula_sum            'C88 H124 Br4 O8'
_chemical_formula_weight         1629.51
_chemical_name_common
'Tetrabromo tetranonyl tetra-allyloxy Calix(4)resorcinarene'
_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
_cell_angle_beta                 91.015(5)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   26.966(3)
_cell_length_b                   18.963(2)
_cell_length_c                   16.2325(15)
_cell_measurement_reflns_used    16290
_cell_measurement_temperature    90
_cell_measurement_theta_max      26.0
_cell_measurement_theta_min      2.5
_cell_volume                     8299.3(15)
_computing_cell_refinement
'Denzo and Scalepack (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 2000)'
_computing_data_reduction
'Denzo and Scalepack (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997)'
_computing_publication_material  'PLATON (Spek, 2002)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      90
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device       'Nonius KappaCCD (with Oxford Cryostream)'
_diffrn_measurement_method       ' \w scans with \k offsets'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.079
_diffrn_reflns_av_sigmaI/netI    0.1064
_diffrn_reflns_limit_h_max       33
_diffrn_reflns_limit_h_min       -33
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            85423
_diffrn_reflns_theta_full        25.0
_diffrn_reflns_theta_max         26.0
_diffrn_reflns_theta_min         2.5
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.993
_exptl_absorpt_correction_T_max  0.943
_exptl_absorpt_correction_T_min  0.615
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'HKL Scalepack (Otwinowski & Minor 1997)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.304
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       lath
_exptl_crystal_F_000             3424
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.03
_refine_diff_density_max         1.24
_refine_diff_density_min         -0.61
_refine_diff_density_rms         0.103
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.015
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     897
_refine_ls_number_reflns         16306
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.130
_refine_ls_R_factor_gt           0.068
_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^)+(0.0612P)^2^+1.9478P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.136
_refine_ls_wR_factor_ref         0.158
_reflns_number_gt                10023
_reflns_number_total             16306
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            b712981e.txt
_cod_data_source_block           Compound10
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'P 21/c '
_cod_database_code               7102322