Orthogonal halogen and hydrogen bonds involving a peptide bond model
Vasylyeva, Vera; Nayak, Susanta K.; Terraneo, Giancarlo; Cavallo, Gabriella; Metrangolo, Pierangelo; Resnati, Giuseppe; CrystEngComm 16 (2014) 8102–; doi:10.1039/C4CE01514B

data_7217206
_publ_section_title
;
 Orthogonal halogen and hydrogen bonds involving a peptide bond model
;
_journal_issue                   35
_journal_name_full               CrystEngComm
_journal_page_first              8102
_journal_paper_doi               10.1039/C4CE01514B
_journal_volume                  16
_journal_year                    2014
_chemical_formula_moiety         '(C6 I2 F4), (C3 H7 N O)'
_chemical_formula_sum            'C9 H7 F4 I2 N O'
_chemical_formula_weight         474.96
_chemical_melting_point          340(2)
_chemical_name_systematic
;
1,2-Diiodotetrafluorobenzene N-Methylacetamide
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                85.660(2)
_cell_angle_beta                 81.022(2)
_cell_angle_gamma                74.403(2)
_cell_formula_units_Z            4
_cell_length_a                   7.2201(3)
_cell_length_b                   8.6847(3)
_cell_length_c                   21.5893(8)
_cell_measurement_reflns_used    401
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.78
_cell_measurement_theta_min      0.89
_cell_volume                     1287.11(9)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0345
_diffrn_reflns_av_sigmaI/netI    0.0222
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            49634
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         0.96
_exptl_absorpt_coefficient_mu    4.918
_exptl_absorpt_correction_T_max  0.6390
_exptl_absorpt_correction_T_min  0.4249
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.451
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             872
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.416
_refine_diff_density_min         -0.964
_refine_diff_density_rms         0.312
_refine_ls_extinction_coef       0.0039(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   1.234
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     336
_refine_ls_number_reflns         5024
_refine_ls_number_restraints     16
_refine_ls_restrained_S_all      1.235
_refine_ls_R_factor_all          0.0370
_refine_ls_R_factor_gt           0.0278
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0429P)^2^+1.3684P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0709
_refine_ls_wR_factor_ref         0.0809
_reflns_number_gt                4352
_reflns_number_total             5024
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c4ce01514b2.cif
_cod_data_source_block           12DITFB-NMA
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/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 

 Adding full bibliography for 7217203--7217209.cif.
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_cod_original_cell_volume        1287.11(8)
_cod_database_code               7217206