Steric and Solvent Effects on the CO2Fixation of Magnesium Compounds
Yang, Kuo-Ching; Chang, Chung-Cheng; Yeh, Charng-Sheng; Lee, Gene-Hsiang; Peng, Shie-Ming; Organometallics 20 (2001) 126–; doi:10.1021/om000735c

data_4077214
_publ_section_title
;
 Steric and Solvent Effects on the CO2Fixation of Magnesium Compounds
;
_journal_issue                   1
_journal_name_full               Organometallics
_journal_page_first              126
_journal_paper_doi               10.1021/om000735c
_journal_volume                  20
_journal_year                    2001
_chemical_formula_sum            'C76 H156 Mg5 N14 O21 P2'
_chemical_formula_weight         1785.64
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
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_cell_angle_beta                 92.876(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.6733(3)
_cell_length_b                   23.0033(4)
_cell_length_c                   27.1890(2)
_cell_measurement_reflns_used    8192
_cell_measurement_temperature    150(1)
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_computing_cell_refinement       'Siemens SAINT'
_computing_data_collection       'Siemens SMART'
_computing_data_reduction        'Siemens SAINT'
_computing_molecular_graphics    'Siemens SHELXTL'
_computing_publication_material  'Siemens SHELXTL'
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(1)
_diffrn_measurement_device       'Siemens SMART CCD'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
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_diffrn_reflns_av_R_equivalents  0.0407
_diffrn_reflns_av_sigmaI/netI    0.0535
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
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_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -33
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_diffrn_reflns_theta_min         1.16
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.137
_exptl_absorpt_correction_T_max  0.9280
_exptl_absorpt_correction_T_min  0.7593
_exptl_absorpt_correction_type   ' empirical used sadabs'
_exptl_crystal_colour            colorless
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_exptl_crystal_density_meas      ?
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_exptl_crystal_size_mid          0.45
_exptl_crystal_size_min          0.40
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_refine_diff_density_min         -0.433
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_refine_ls_extinction_coef       0.0017(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_all   1.045
_refine_ls_goodness_of_fit_obs   1.104
_refine_ls_matrix_type           full
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_refine_ls_number_reflns         17890
_refine_ls_number_restraints     0
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_refine_ls_restrained_S_obs      1.104
_refine_ls_R_factor_all          0.1080
_refine_ls_R_factor_obs          0.0791
_refine_ls_shift/esd_max         0.000
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0958P)^2^+15.1317P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.2045
_refine_ls_wR_factor_obs         0.1864
_reflns_number_observed          13419
_reflns_number_total             17897
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            om000735c.cif
_cod_data_source_block           compound-11
_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not_measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0958P)^2^+15.1317P] where P=(Fo^2^+2Fc^2^)/3'
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^(Fo^2^)+(0.0958P)^2^+15.1317P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4077214