#------------------------------------------------------------------------------
#$Date: 2016-02-16 21:30:59 +0100 (mar 16 de feb de 2016) $
#$Revision: 176467 $
#$URL: svn://www.crystallography.net/cod/cif/4/00/02/4000237.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_4000237
_journal_name_full               'Chemistry of Materials'
_journal_paper_doi               10.1021/cm025758r
_journal_year                    2003
_chemical_formula_moiety         'C7 H4 I1.23 S4 Se2 '
_chemical_formula_sum            'C7 H4 I1.23 S4 Se2'
_chemical_formula_weight         530.36
_chemical_melting_point          ?
_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'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   3.962(2)
_cell_length_b                   12.422(3)
_cell_length_c                   25.470(6)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    298.2
_cell_measurement_theta_max      17.3
_cell_measurement_theta_min      15.1
_cell_volume                     1253(1)
_diffrn_measured_fraction_theta_full 0.9987
_diffrn_measured_fraction_theta_max 0.9987
_diffrn_measurement_device_type  'Rigaku AFC7R'
_diffrn_measurement_method       ω
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.023
_diffrn_reflns_limit_h_max       2
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            2095
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_standards_decay_%        0.40
_diffrn_standards_interval_count 150
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    9.555
_exptl_absorpt_correction_T_max  0.998
_exptl_absorpt_correction_T_min  0.566
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   '(North, Phillips & Mathews, 1968)'
_exptl_crystal_colour            bronze
_exptl_crystal_density_diffrn    2.810
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_size_max          0.500
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.080
_exptl_crystal_size_rad          ?
_refine_diff_density_max         0.63
_refine_diff_density_min         -0.64
_refine_ls_abs_structure_details ?
_refine_ls_abs_structure_Flack   ?
_refine_ls_extinction_coef       ?
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.995
_refine_ls_hydrogen_treatment    noref
_refine_ls_number_parameters     74
_refine_ls_number_reflns         971
_refine_ls_R_factor_gt           0.0323
_refine_ls_shift/su_max          0.0098
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details     'w = 1/[σ²(Fo) + 0.00000|Fo|²]'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.0290
_reflns_number_gt                971
_reflns_number_total             1500
_reflns_threshold_expression     F²>3.0σ(F²)
_cod_original_sg_symbol_H-M      'P 21/n 21/m 21/a'
_cod_original_formula_sum        'C7 H4 I1.23 S4 Se2 '
_cod_database_code               4000237
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
1/2+x,1/2-y,1/2-z
-x,1/2+y,-z
1/2-x,-y,1/2+z
-x,-y,-z
1/2-x,1/2+y,1/2+z
x,1/2-y,z
1/2+x,y,1/2-z
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_occupancy
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_disorder_assembly
_atom_site_disorder_group
I(1) I -0.253(8) -0.07681(6) 0.2481(2) 0.284(3) Uani 0.62 d P . .
Se(1) Se 0.7813(2) 0.12070(4) 0.48350(2) 0.0358(2) Uani 1.00 d . . .
S(1) S 1.0568(5) 0.1294(1) 0.60013(6) 0.0465(5) Uani 1.00 d . . .
S(2) S 0.4167(5) 0.1315(1) 0.36707(6) 0.0414(5) Uani 1.00 d . . .
C(1) C 1.220(3) 0.2500 0.6310(4) 0.048(3) Uani 1.00 d S . .
C(2) C 0.930(2) 0.1956(4) 0.5433(2) 0.032(2) Uani 1.00 d . . .
C(3) C 0.669(2) 0.2500 0.4468(3) 0.033(2) Uani 1.00 d S . .
C(4) C 0.524(3) 0.2500 0.4002(3) 0.033(2) Uani 1.00 d S . .
C(5) C 0.232(2) 0.1970(5) 0.3147(2) 0.049(2) Uani 1.00 d . . .
H(1) H 1.1593 0.2500 0.6677 0.0507 Uiso 1.00 calc S . .
H(2) H 1.4625 0.2500 0.6291 0.0507 Uiso 1.00 calc S . .
H(3) H 0.1317 0.1566 0.2861 0.0507 Uiso 1.00 calc . . .
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.003 0.002
;International Tables for Crystallography
(1992, Vol. C, Tables 4.2.6.8 and 6.1.1.1)
;
H H 0.000 0.000
;International Tables for Crystallography
(1992, Vol. C, Table 6.1.1.2)
;
S S 0.125 0.123
;International Tables for Crystallography
(1992, Vol. C, Tables 4.2.6.8 and 6.1.1.1)
;
Se Se -0.093 2.226
;International Tables for Crystallography
(1992, Vol. C, Tables 4.2.6.8 and 6.1.1.1)
;
I I -0.474 1.812
;International Tables for Crystallography
(1992, Vol. C, Tables 4.2.6.8 and 6.1.1.1)
;
