From phenylalkylcyanamides to heterocyclic selenazadiphospholaminediselenides and carbamidoyl(phenyl)phosphinodiselenoic acids
Hua, Guoxiong; Zhang, Qingzhi; Li, Yang; Slawin, Alexandra M. Z.; Woollins, J. Derek; Dalton Transactions  (2008) 5563–5566; doi:10.1039/b813406p

data_7004785
_publ_section_title
;
 From phenylalkylcyanamides to heterocyclic
 selenazadiphospholaminediselenides and
 carbamidoyl(phenyl)phosphinodiselenoic acids
;
_journal_issue                   41
_journal_name_full               'Dalton Transactions'
_journal_page_first              5563
_journal_page_last               5566
_journal_paper_doi               10.1039/b813406p
_journal_year                    2008
_chemical_formula_moiety         'C22 H22 N2 P2 Se3'
_chemical_formula_sum            'C22 H22 N2 P2 Se3'
_chemical_formula_weight         613.24
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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            8
_cell_length_a                   18.865(7)
_cell_length_b                   10.616(3)
_cell_length_c                   23.670(8)
_cell_measurement_reflns_used    8341
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      27.9926
_cell_measurement_theta_min      2.0313
_cell_volume                     4740(3)
_computing_cell_refinement       'CrystalClear (Rigaku Corp., 2004)'
_computing_data_collection       'CrystalClear (Rigaku Corp., 2004)'
_computing_data_reduction        'CrystalClear (Rigaku Corp., 2004)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      93(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  CCD
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0869
_diffrn_reflns_av_sigmaI/netI    0.0434
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            44226
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.48
_diffrn_reflns_theta_min         3.61
_exptl_absorpt_coefficient_mu    4.802
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.7313
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.718
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             2400
_exptl_crystal_size_max          0.1300
_exptl_crystal_size_mid          0.1000
_exptl_crystal_size_min          0.0500
_refine_diff_density_max         1.412
_refine_diff_density_min         -0.535
_refine_diff_density_rms         0.106
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.139
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     264
_refine_ls_number_reflns         4367
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.139
_refine_ls_R_factor_all          0.0935
_refine_ls_R_factor_gt           0.0713
_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^)+(0.1016P)^2^+1.8097P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1792
_refine_ls_wR_factor_ref         0.1952
_reflns_number_gt                3263
_reflns_number_total             4367
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b813406p.txt
_cod_data_source_block           1
_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_cell_volume        4741(3)
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               7004785