Synthon preference in O-protonated amide crystals – dominance of short strong hydrogen bonds
Perumalla, Sathyanarayana Reddy; Sun, Changquan Calvin; CrystEngComm 15 (2013) 8941–; doi:10.1039/c3ce41271g

data_7211127
_publ_section_title
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 Synthon preference in O-protonated amide crystals -- dominance of short
 strong hydrogen bonds
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_journal_issue                   44
_journal_name_full               CrystEngComm
_journal_page_first              8941
_journal_paper_doi               10.1039/c3ce41271g
_journal_volume                  15
_journal_year                    2013
_chemical_formula_sum            'C9 H12 Cl N O2'
_chemical_formula_weight         201.65
_chemical_name_common            'Ethenzamide hydrochloride salt'
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 123.740(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.5611(6)
_cell_length_b                   14.9501(11)
_cell_length_c                   10.3894(6)
_cell_measurement_reflns_used    7822
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      27.14
_cell_measurement_theta_min      2.72
_cell_volume                     976.60(13)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker Apex II platform CCD'
_diffrn_measurement_method       'Omega and Phi 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  0.0172
_diffrn_reflns_av_sigmaI/netI    0.0120
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            10823
_diffrn_reflns_theta_full        27.14
_diffrn_reflns_theta_max         27.14
_diffrn_reflns_theta_min         2.72
_exptl_absorpt_coefficient_mu    0.358
_exptl_absorpt_correction_T_max  0.8941
_exptl_absorpt_correction_T_min  0.8330
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (G. Sheldrick, 2003)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.371
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needles
_exptl_crystal_F_000             424
_exptl_crystal_size_max          0.53
_exptl_crystal_size_mid          0.36
_exptl_crystal_size_min          0.32
_refine_diff_density_max         0.355
_refine_diff_density_min         -0.199
_refine_diff_density_rms         0.040
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     166
_refine_ls_number_reflns         2168
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0281
_refine_ls_R_factor_gt           0.0257
_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^)+(0.0386P)^2^+0.3135P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0709
_refine_ls_wR_factor_ref         0.0729
_reflns_number_gt                1998
_reflns_number_total             2168
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ce41271g.txt
_cod_data_source_block           11095_0m
_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 2.4.2 from
2011-04-26.

'_exptl_absorpt_correction_type' value 'Multi Scan'
changed to 'multi-scan' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        976.60(12)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7211127