Bis(tert-butylamido)- and bis(arylamido)cyclodiphosph(iii)azane complexes of Ti, V, Zr and Hf: ligand substituent effects and coordination number
Moser, Daniel F.; Grocholl, Luke; Stahl, Lothar; Staples, Richard J.; Dalton Transactions  (2003) 1402–; doi:10.1039/b211009a

data_7012454
_publ_section_title
;
 Bis(tert-butylamido)- and bis(arylamido)cyclodiphosph(iii)azane
 complexes of Ti, V, Zr and Hf: ligand substituent effects and
 coordination number
;
_journal_issue                   7
_journal_name_full               'Dalton Transactions'
_journal_page_first              1402
_journal_paper_doi               10.1039/b211009a
_journal_year                    2003
_chemical_formula_sum            'C40 H56 N8 P4 Zr'
_chemical_formula_weight         864.03
_space_group_IT_number           60
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2n 2ab'
_symmetry_space_group_name_H-M   'P b c n'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   21.7990(5)
_cell_length_b                   9.7180(2)
_cell_length_c                   20.4069(4)
_cell_measurement_reflns_used    159
_cell_measurement_temperature    213(2)
_cell_measurement_theta_max      20.63
_cell_measurement_theta_min      2.45
_cell_volume                     4323.05(16)
_computing_cell_refinement       'SMART (SIEMENS, V4.033, 1994)'
_computing_data_collection       'ASTRO (SIEMENS, V4.033, 1994)'
_computing_data_reduction        'SAINT (SIEMENS, V4.035, 1994)'
_computing_molecular_graphics    'SHELXTL (SIEMENS, 1994, ver 5.04)'
_computing_publication_material  'CIFTAB (Sheldrick, 1993)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      213(2)
_diffrn_measured_fraction_theta_full 0.920
_diffrn_measured_fraction_theta_max 0.920
_diffrn_measurement_device_type  CCD
_diffrn_measurement_method       '\w, 0.3 deg'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0407
_diffrn_reflns_av_sigmaI/netI    0.0288
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            18997
_diffrn_reflns_theta_full        27.74
_diffrn_reflns_theta_max         27.74
_diffrn_reflns_theta_min         1.87
_diffrn_standards_decay_%        <1
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.441
_exptl_absorpt_correction_T_max  0.8975
_exptl_absorpt_correction_T_min  0.7960
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            light_yellow
_exptl_crystal_density_diffrn    1.328
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       chunk
_exptl_crystal_F_000             1808
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.432
_refine_diff_density_min         -0.361
_refine_diff_density_rms         0.060
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.153
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     240
_refine_ls_number_reflns         4688
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.153
_refine_ls_R_factor_all          0.0516
_refine_ls_R_factor_gt           0.0384
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0267P)^2^+4.0443P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0810
_refine_ls_wR_factor_ref         0.0880
_reflns_number_gt                3910
_reflns_number_total             4688
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b211009a.txt
_cod_data_source_block           6
_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 
;
_cod_original_sg_symbol_H-M      Pbcn
_cod_database_code               7012454