Acyclic imidoselenium(ii) dihalides: synthesis and X-ray structures of ClSe[N(But)Se]nCl (n = 1, 2)
Maaninen, Tiina; Chivers, Tristram; Laitinen, Risto; Wegelius, Elina; Chemical Communications  (2000) 759–; doi:10.1039/b001002m

data_7110883
_publ_section_title
;
 Acyclic imidoselenium(ii) dihalides: synthesis and X-ray structures of
 ClSe[N(But)Se]nCl (n = 1, 2)
;
_journal_issue                   9
_journal_name_full               'Chemical Communications'
_journal_page_first              759
_journal_paper_doi               10.1039/b001002m
_journal_year                    2000
_chemical_formula_sum            'C4 H9 Cl2 N Se2'
_chemical_formula_weight         299.94
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 92.060(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.2630(10)
_cell_length_b                   10.2820(10)
_cell_length_c                   12.3120(10)
_cell_measurement_temperature    173(2)
_cell_volume                     918.84(17)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.927
_diffrn_measured_fraction_theta_max 0.927
_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  0.0654
_diffrn_reflns_av_sigmaI/netI    0.0699
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            4419
_diffrn_reflns_theta_full        27.53
_diffrn_reflns_theta_max         27.53
_diffrn_reflns_theta_min         2.58
_exptl_absorpt_coefficient_mu    8.553
_exptl_absorpt_correction_T_max  0.3602
_exptl_absorpt_correction_T_min  0.1835
_exptl_crystal_density_diffrn    2.168
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             568
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.15
_refine_diff_density_max         2.690
_refine_diff_density_min         -1.135
_refine_diff_density_rms         0.249
_refine_ls_extinction_coef       0.001(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_ref   1.198
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     86
_refine_ls_number_reflns         2076
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.198
_refine_ls_R_factor_all          0.0830
_refine_ls_R_factor_gt           0.0753
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0877P)^2^+5.8308P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1947
_refine_ls_wR_factor_ref         0.2004
_reflns_number_gt                1797
_reflns_number_total             2076
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b001002msup1.cif
_cod_data_source_block           tim4ab
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0877P)^2^+5.8308P] 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^)+(0.0877P)^2^+5.8308P] 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               7110883