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_7102321
_publ_section_title
;
 Synthesis of resorcin[4]arene cavitands by ring-closing metathesis
;
_journal_coden_ASTM              CHCOFS
_journal_issue                   46
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
;
_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         'C72 H96 O8, 0.5(C4 H8 O2)'
_chemical_formula_sum            'C74 H100 O9'
_chemical_formula_weight         1133.54
_chemical_name_common
;Tetramethyl tetrahexyl Beta-Butylene dioxy
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                 110.583(6)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   17.333(2)
_cell_length_b                   34.347(4)
_cell_length_c                   23.388(2)
_cell_measurement_reflns_used    18119
_cell_measurement_temperature    115
_cell_measurement_theta_max      23.0
_cell_measurement_theta_min      2.5
_cell_volume                     13035(2)
_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    'SIR97, (Altomare et al., 1999)'
_diffrn_ambient_temperature      115
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       '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  0.063
_diffrn_reflns_av_sigmaI/netI    0.089
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       37
_diffrn_reflns_limit_k_min       -37
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            105791
_diffrn_reflns_theta_full        23.0
_diffrn_reflns_theta_max         23.0
_diffrn_reflns_theta_min         2.5
_diffrn_standards_decay_%        <2
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.074
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.155
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             4928
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.44
_refine_diff_density_min         -0.36
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1495
_refine_ls_number_reflns         18030
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.139
_refine_ls_R_factor_gt           0.067
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0789P)^2^+7.4921P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.152
_refine_ls_wR_factor_ref         0.183
_reflns_number_gt                10173
_reflns_number_total             18030
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            b712981e.txt
_cod_data_source_block           Bisht4
_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               7102321