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_7113179
_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         'C80 H80 O8'
_chemical_formula_sum            'C80 H80 O8'
_chemical_formula_weight         1169.44
_chemical_name_common
'Tetramethyltetraphenyltetraallyloxy) Calix(4) Resorcinarene'
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                103.132(12)
_cell_angle_beta                 92.301(11)
_cell_angle_gamma                101.094(11)
_cell_formula_units_Z            2
_cell_length_a                   12.360(2)
_cell_length_b                   13.691(3)
_cell_length_c                   19.796(4)
_cell_measurement_reflns_used    6984
_cell_measurement_temperature    110
_cell_measurement_theta_max      22.5
_cell_measurement_theta_min      2.5
_cell_volume                     3189.0(11)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'COLLECT (Nonius, 2000)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      110
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_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  0.041
_diffrn_reflns_av_sigmaI/netI    0.0694
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            24759
_diffrn_reflns_theta_full        22.5
_diffrn_reflns_theta_max         22.5
_diffrn_reflns_theta_min         2.5
_diffrn_standards_decay_%        <2
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.218
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       fragment
_exptl_crystal_F_000             1248
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.48
_refine_diff_density_min         -0.37
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     790
_refine_ls_number_reflns         8240
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.111
_refine_ls_R_factor_gt           0.071
_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^)+(0.0569P)^2^+5.4051P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.152
_refine_ls_wR_factor_ref         0.171
_reflns_number_gt                5669
_reflns_number_total             8240
_reflns_threshold_expression     I>2\s(I)
_cod_duplicate_entry             7102320
_cod_data_source_file            b712981e.txt
_cod_data_source_block           Compound_11
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/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_sg_symbol_H-M      'P -1 '
_cod_database_code               7113179