#------------------------------------------------------------------------------
#$Date: 2016-03-26 16:24:46 +0200 (Sat, 26 Mar 2016) $
#$Revision: 180337 $
#$URL: svn://www.crystallography.net/cod/cif/7/20/06/7200677.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_7200677
loop_
_publ_author_name
'Olejniczak, Anna'
'Katrusiak, Andrzej'
'Vij, Ashwani'
_publ_section_title
;
 Weak intermolecular interactions and molecular aggregation in
 isostructural dihaloperfluoroethanes,
;
_journal_issue                   6
_journal_name_full               CrystEngComm
_journal_page_first              1073
_journal_paper_doi               10.1039/b819942f
_journal_volume                  11
_journal_year                    2009
_chemical_formula_moiety         'C2 F4 I2'
_chemical_formula_sum            'C2 F4 I2'
_chemical_formula_weight         353.82
_chemical_name_common            1,2-diiodo-1,1,2,2-tetrafluoroethane
_chemical_name_systematic
;
1,2-diiodo-1,1,2,2-tetrafluoroethane
;
_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_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 103.68(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.4133(13)
_cell_length_b                   5.9350(12)
_cell_length_c                   8.4792(17)
_cell_measurement_pressure       0.86E6(5)
_cell_measurement_reflns_used    197
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.63
_cell_measurement_theta_min      3.60
_cell_volume                     313.59(12)
_computing_cell_refinement       'CrysAlis (Oxford Diffraction, 2002)'
_computing_data_collection       'CrysAlis (Oxford Diffraction, 2002)'
_computing_data_reduction        'CrysAlis (Oxford Diffraction, 2002)'
_computing_molecular_graphics
;X-Seed (Barbour, 2001)
and POV-Ray (Persistence of Vision, 2004)
;
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean 16.4
_diffrn_measured_fraction_theta_full 0.245
_diffrn_measured_fraction_theta_max 0.245
_diffrn_measurement_device_type  'Kuma KM4CCD κ geometry'
_diffrn_measurement_method
;HP omega scans - for more details see:
A. Budzianowski, A. Katrusiak in High-Pressure Crystallography
(Eds.: A. Katrusiak, P. F. McMillan),
Dordrecht: Kluwer Acad. Publ., 2004 pp.157-168
;
_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  0.1967
_diffrn_reflns_av_sigmaI/netI    0.0794
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       1
_diffrn_reflns_limit_k_min       -1
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            1107
_diffrn_reflns_theta_full        28.63
_diffrn_reflns_theta_max         28.63
_diffrn_reflns_theta_min         3.60
_exptl_absorpt_coefficient_mu    10.006
_exptl_absorpt_correction_T_max  0.22
_exptl_absorpt_correction_T_min  0.11
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details
;
Katrusiak, A. (2003). REDSHADE - Program for correcting
reflections intensities for DAC absorption, gasket shadowing
and sample crystal absorption. Adam Mickiewicz University, Poznań.
Katrusiak, A. (2004). Z. Kristallogr. 219, 461-467
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    3.747
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             308
_exptl_crystal_size_max          0.46
_exptl_crystal_size_mid          0.46
_exptl_crystal_size_min          0.06
_refine_diff_density_max         1.680
_refine_diff_density_min         -1.373
_refine_diff_density_rms         0.455
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.429
_refine_ls_matrix_type           full
_refine_ls_number_parameters     32
_refine_ls_number_reflns         197
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.429
_refine_ls_R_factor_all          0.1335
_refine_ls_R_factor_gt           0.1302
_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/[σ²(Fo²)+(0.2000P)²+0.0000P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3029
_refine_ls_wR_factor_ref         0.3107
_reflns_number_gt                181
_reflns_number_total             197
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b819942f.txt
_cod_data_source_block           ICF2CF2I_086GPa
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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        313.58(11)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7200677
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x+1/2, y+1/2, -z+1/2'
'-x, -y, -z'
'x-1/2, -y-1/2, z-1/2'
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_symmetry_multiplicity
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_disorder_assembly
_atom_site_disorder_group
I1A I 0.6997(3) 0.8003(16) -0.11541(18) 0.057(18) Uani 1 1 d . . .
C1A C 0.617(3) 0.55(2) 0.0337(15) 0.11(6) Uani 1 1 d . . .
F3A F 0.753(3) 0.368(14) 0.036(2) 0.08(7) Uani 1 1 d . . .
F2A F 0.628(2) 0.641(10) 0.1858(18) 0.064(4) Uiso 1 1 d . . .
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_23
_atom_site_aniso_U_13
_atom_site_aniso_U_12
I1A 0.0663(18) 0.05(5) 0.0664(18) 0.0071(12) 0.0364(11) -0.0016(12)
C1A 0.046(10) 0.3(2) 0.031(7) -0.03(3) 0.019(5) 0.05(4)
F3A 0.062(9) 0.1(2) 0.091(11) 0.08(3) 0.022(7) -0.01(2)
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0033 0.0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
F F 0.0171 0.0103 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
I I -0.4742 1.8119 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
_geom_angle_publ_flag
F3A C1A F2A 113(3) . . ?
F3A C1A C1A 105(10) . 3_665 ?
F2A C1A C1A 108.4(14) . 3_665 ?
F3A C1A I1A 108.3(18) . . ?
F2A C1A I1A 109(7) . . ?
C1A C1A I1A 113(5) 3_665 . ?
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_site_symmetry_2
_geom_bond_publ_flag
I1A C1A 2.10(9) . ?
C1A F3A 1.39(10) . ?
C1A F2A 1.39(5) . ?
C1A C1A 1.59(11) 3_665 ?
