5-Chloro-2-hydroxycarbonylmethoxy-1,3-xylyl-18-crown-5 and 5-chloro-2-ethoxycarbonylmethoxy-1,3-xylyl-18-crown-5
Ferguson, G.; Kaitner, B.; McKervey, M. A.; Owens, M.; Acta Crystallographica Section C 49 (1993) 179–182; doi:10.1107/S0108270192009971

data_2002109
_publ_section_title
;
 5-Chloro-2-hydroxycarbonylmethoxy-1,3-xylyl-18-crown-5 and
 5-chloro-2-ethoxycarbonylmethoxy-1,3-xylyl-18-crown-5
;
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              179
_journal_page_last               182
_journal_paper_doi               10.1107/S0108270192009971
_journal_volume                  49
_journal_year                    1993
_chemical_formula_moiety         'C20 H29 Cl O8 '
_chemical_formula_sum            'C20 H29 Cl O8'
_chemical_formula_weight         432.89
_chemical_name_systematic
;
 5-chloro-2-ethoxycarbonylmethoxy-1,3-xylyl-18-crown-5
;
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_cell_angle_alpha                90.0
_cell_angle_beta                 90.0
_cell_angle_gamma                90.0
_cell_formula_units_Z            4
_cell_length_a                   17.884(3)
_cell_length_b                   8.792(3)
_cell_length_c                   13.918(3)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293
_cell_measurement_theta_max      18.00
_cell_measurement_theta_min      10.00
_cell_volume                     2188.4(10)
_computing_cell_refinement       'Enraf-Nonius CAD-4 software'
_computing_data_collection       'Enraf-Nonius CAD-4 software'
_computing_data_reduction
'NRCVAX DATRD2 (Gabe, Le Page, Charland, Lee & White, 1989)'
_computing_molecular_graphics    'NRCVAX (Gabe et al., 1989)'
_computing_publication_material  'NRCVAX TABLES (Gabe et al., 1989)'
_computing_structure_refinement  'NRCVAX LSTSQ (Gabe et al., 1989)'
_computing_structure_solution    'NRCVAX SOLVER (Gabe et al., 1989)'
_diffrn_ambient_temperature      293
_diffrn_measurement_device       'Nonius CAD-4    '
_diffrn_measurement_method
;\q/2\q scans [\q-scan width (0.6 + 0.35tan\q)\%, \q-scan rate 3.3\%
min^-1^, background counts for 15 s on each side of every scan]
;
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'xray tube'
_diffrn_radiation_type           'Molybdenum K\a'
_diffrn_radiation_wavelength     0.70930
_diffrn_reflns_av_R_equivalents  0.000
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            2482
_diffrn_reflns_theta_max         26.90
_diffrn_reflns_theta_min         0.00
_diffrn_standards_decay_%        '< 1.0'
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.21
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  1.0000
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.314
_exptl_crystal_description       plate
_exptl_crystal_F_000             920
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.15
_refine_diff_density_min         -0.13
_refine_ls_abs_structure_Rogers  1.000000
_refine_ls_extinction_coef       6054(18)
_refine_ls_extinction_method     'Larson (1970)'
_refine_ls_goodness_of_fit_obs   1.07
_refine_ls_matrix_type           full
_refine_ls_number_parameters     262
_refine_ls_number_reflns         816
_refine_ls_R_factor_all          0.189
_refine_ls_R_factor_obs          0.033
_refine_ls_shift/esd_max         0.000
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details     'w = 1/[\s^2^(F)+0.0008F^2^]'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.084
_refine_ls_wR_factor_obs         0.040
_reflns_number_observed          816
_reflns_number_total             2482
_reflns_observed_criterion       'Inet > 3.0\s(Inet)'
_cod_data_source_file            br1013.cif
_cod_data_source_block           br1013_structure_2_of_2
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
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 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value '1/[\s^2^(F)+0.0008F^2^]' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to 'w =
1/[\s^2^(F)+0.0008F^2^]'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_formula_sum        'C20 H29 Cl O8 '
_cod_database_code               2002109