Ethyleneglycol tungsten complexes of calix[6 and 8]arenes: synthesis, characterization and ROP of ε-caprolactone.
Li, Yuanzhuo; Zhao, Ke-Qing; Feng, Chun; Elsegood, Mark R. J.; Prior, Timothy J.; Sun, Xinsen; Redshaw, Carl; Dalton transactions (Cambridge, England : 2003) 43 (2014) 13612–13619; doi:10.1039/c4dt01936a

data_7031772
_publ_section_title
;
 Ethyleneglycol tungsten complexes of calix[6 and 8]arenes: synthesis,
 characterization and ROP of \e-caprolactone.
;
_journal_issue                   36
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              13612
_journal_page_last               13619
_journal_paper_doi               10.1039/c4dt01936a
_journal_volume                  43
_journal_year                    2014
_chemical_formula_moiety         'C96 H128 O16 W2, 3.5(C2 H3 N)'
_chemical_formula_sum            'C103 H134.5 N3.5 O16 W2'
_chemical_formula_weight         2045.34
_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                112.0219(9)
_cell_angle_beta                 105.3910(10)
_cell_angle_gamma                93.0486(10)
_cell_formula_units_Z            2
_cell_length_a                   14.8901(11)
_cell_length_b                   17.5516(13)
_cell_length_c                   22.0164(16)
_cell_measurement_reflns_used    10252
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      26.20
_cell_measurement_theta_min      2.25
_cell_volume                     5067.2(6)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX 2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL and local programs'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.959
_diffrn_measurement_device_type  'Bruker SMART APEX 2 CCD diffractometer'
_diffrn_measurement_method       '\w rotation with narrow frames'
_diffrn_radiation_monochromator  'silicon 111'
_diffrn_radiation_source         'Daresbury SRS station 9.8'
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.6884
_diffrn_reflns_av_R_equivalents  0.0443
_diffrn_reflns_av_sigmaI/netI    0.0803
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            60220
_diffrn_reflns_theta_full        28.00
_diffrn_reflns_theta_max         30.00
_diffrn_reflns_theta_min         1.69
_diffrn_standards_decay_%        4
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.331
_exptl_absorpt_correction_T_max  0.933
_exptl_absorpt_correction_T_min  0.679
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS v2004/1, Sheldrick, G.M., (2004)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.341
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       tablet
_exptl_crystal_F_000             2106
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: Acetonitrile'
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.03
_refine_diff_density_max         1.318
_refine_diff_density_min         -2.295
_refine_diff_density_rms         0.109
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.113
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1435
_refine_ls_number_reflns         31223
_refine_ls_number_restraints     1062
_refine_ls_restrained_S_all      1.102
_refine_ls_R_factor_all          0.1172
_refine_ls_R_factor_gt           0.0763
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0320P)^2^+20.4683P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1588
_refine_ls_wR_factor_ref         0.1750
_reflns_number_gt                20519
_reflns_number_total             31223
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4dt01936a2.cif
_cod_data_source_block           4
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/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 

 Adding full bibliography for 7031769--7031773.cif.

The following automatic conversions were performed:

data name '_iucr_refine_instruction_details' was replaced with
'_iucr_refine_instructions_details' as specified in the replacement
file 'data/replacement-values/replacement_tags.lst'.

Automatic conversion script
Id: cif_correct_tags 9268 2022-04-12 08:56:07Z antanas 
;
_cod_original_sg_symbol_H-M      P-1
_cod_original_formula_sum        'C103 H134.50 N3.50 O16 W2'
_cod_database_code               7031772