C22H50N2P2Se2Zn
Bochmann, Manfred; Coles, Simon J.; Hursthouse, Michael B.; Crystal Structure Report Archive  (1994) 1195–; doi:

data_1519140
_publ_section_title
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 C22H50N2P2Se2Zn
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_journal_name_full               'Crystal Structure Report Archive'
_journal_page_first              1195
_journal_year                    1994
_chemical_formula_moiety         'C22 H50 N2 P2 Se2 Zn'
_chemical_formula_sum            'C22 H50 N2 P2 Se2 Zn'
_chemical_formula_weight         627.87
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yab'
_symmetry_space_group_name_H-M   'P 1 21/a 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 90.565(18)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.815(5)
_cell_length_b                   11.848(8)
_cell_length_c                   16.041(5)
_cell_measurement_temperature    220(2)
_cell_volume                     3006(2)
_computing_cell_refinement       REFINE
_computing_data_collection       'MADNES (Pflugrath & Messerschmidt, 1989)'
_computing_data_reduction        'ABSURD (Karaulov, 1992)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution
'SIR92 (Altomare, Cascarano, Giacovazzo & Guaglitardi, 1993)'
_diffrn_ambient_temperature      220(2)
_diffrn_measured_fraction_theta_full 0.834
_diffrn_measured_fraction_theta_max 0.834
_diffrn_measurement_device_type  'Delft instruments FAST area detector'
_diffrn_measurement_method
'Intensity measurements as described by Darr, Drake, Hursthouse & Malik (1993)'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode generator'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0746
_diffrn_reflns_av_sigmaI/netI    0.0822
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            11704
_diffrn_reflns_theta_full        25.05
_diffrn_reflns_theta_max         25.05
_diffrn_reflns_theta_min         2.15
_exptl_absorpt_coefficient_mu    3.357
_exptl_absorpt_correction_T_max  0.6508
_exptl_absorpt_correction_T_min  0.4996
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SORTAV (R.H.Blessing, 1995, 1997)'
_exptl_crystal_colour            unk
_exptl_crystal_density_diffrn    1.388
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       unk
_exptl_crystal_F_000             1296
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.807
_refine_diff_density_min         -0.497
_refine_diff_density_rms         0.119
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.964
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     278
_refine_ls_number_reflns         4440
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.964
_refine_ls_R_factor_all          0.0520
_refine_ls_R_factor_gt           0.0407
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0505P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0955
_refine_ls_wR_factor_ref         0.0972
_reflns_number_gt                3414
_reflns_number_total             4440
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            eCrystal-1195.cif
_cod_data_source_block           s92
_cod_depositor_comments
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Citation :
Bochmann, Manfred and Coles, Simon J. and Hursthouse, Michael B. (1994) 
University of Southampton, Crystal Structure Report Archive. 
(doi:10.5258/ecrystals/1195)

http://ecrystals.chem.soton.ac.uk/1195/
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_cod_original_sg_symbol_H-M      P2(1)/a
_cod_database_code               1519140