A monomeric selenium(iv) diimide and a dimeric seleninylamine
Maaninen, Tiina; Laitinen, Risto; Chivers, Tristram; Chemical Communications  (2002) 1812–; doi:10.1039/b205011k

data_7114519
_publ_section_title
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 A monomeric selenium(iv) diimide and a dimeric seleninylamine
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_journal_issue                   17
_journal_name_full               'Chemical Communications'
_journal_page_first              1812
_journal_paper_doi               10.1039/b205011k
_journal_year                    2002
_chemical_formula_moiety         'C4 H9 N O Se'
_chemical_formula_sum            'C4 H9 N O Se'
_chemical_formula_weight         166.08
_chemical_name_systematic
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bis(selenenylamine)
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_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   19.517(4)
_cell_length_b                   11.499(2)
_cell_length_c                   5.6722(11)
_cell_measurement_temperature    120(2)
_cell_volume                     1273.0(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.969
_diffrn_measured_fraction_theta_max 0.969
_diffrn_measurement_device_type  'Nonius kappaccd'
_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  0.0716
_diffrn_reflns_av_sigmaI/netI    0.0390
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            15441
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         2.74
_exptl_absorpt_coefficient_mu    5.790
_exptl_absorpt_correction_T_max  0.5952
_exptl_absorpt_correction_T_min  0.2755
_exptl_absorpt_correction_type   psi-scan
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.733
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             656
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.666
_refine_diff_density_min         -0.904
_refine_diff_density_rms         0.112
_refine_ls_extinction_coef       0.0056(7)
_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   1.102
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     78
_refine_ls_number_reflns         1608
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.102
_refine_ls_R_factor_all          0.0439
_refine_ls_R_factor_gt           0.0360
_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^)+(0.0395P)^2^+1.8208P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0826
_refine_ls_wR_factor_ref         0.0861
_reflns_number_gt                1404
_reflns_number_total             1608
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b205011k.txt
_cod_data_source_block           cmpd2
_cod_depositor_comments
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The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Psi-scan' changed to
'psi-scan' according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      Pnma
_cod_database_code               7114519