First example of a molecular Ce(iii) phosphonate: synthesis, structural characterization and catalytic activity of [Ce2{Ph3CPO2(OEt)}4(NO3)2(H2O)4], structural diversity of Ph3CPO3H2
Chandrasekhar, Vadapalli; Sasikumar, Palani; Dalton Transactions  (2008) 6475–6480; doi:10.1039/b807801g

data_7004476
_publ_section_title
;
 First example of a molecular Ce(iii) phosphonate: synthesis,
 structural characterization and catalytic activity of
 [Ce2{Ph3CPO2(OEt)}4(NO3)2(H2O)4], structural diversity of Ph3CPO3H2
;
_journal_issue                   45
_journal_name_full               'Dalton Transactions'
_journal_page_first              6475
_journal_page_last               6480
_journal_paper_doi               10.1039/b807801g
_journal_year                    2008
_chemical_formula_moiety         'C19 H17 O3 P, C2 H6 O'
_chemical_formula_sum            'C21 H23 O4 P'
_chemical_formula_weight         370.36
_chemical_name_common            'phosphonic acid'
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_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                84.159(2)
_cell_angle_beta                 89.344(2)
_cell_angle_gamma                68.104(2)
_cell_formula_units_Z            2
_cell_length_a                   8.7303(10)
_cell_length_b                   9.7126(11)
_cell_length_c                   12.1186(14)
_cell_measurement_reflns_used    2259
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.26
_cell_measurement_theta_min      2.27
_cell_volume                     948.11(19)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.979
_diffrn_measured_fraction_theta_max 0.979
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0209
_diffrn_reflns_av_sigmaI/netI    0.0446
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            5346
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.27
_exptl_absorpt_coefficient_mu    0.168
_exptl_absorpt_correction_T_max  0.9736
_exptl_absorpt_correction_T_min  0.9328
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.297
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             392
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.09
_exptl_crystal_size_min          0.07
_refine_diff_density_max         1.230
_refine_diff_density_min         -0.567
_refine_diff_density_rms         0.086
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.066
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     245
_refine_ls_number_reflns         3644
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.066
_refine_ls_R_factor_all          0.0737
_refine_ls_R_factor_gt           0.0647
_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^)+(0.0800P)^2^+1.6274P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1633
_refine_ls_wR_factor_ref         0.1724
_reflns_number_gt                3131
_reflns_number_total             3644
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b807801g.txt
_cod_data_source_block           1c
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_refine_ls_hydrogen_treatment' value 'Constr' changed to
'constr' 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 
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_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7004476