1,1-Dichloroethane: a molecular crystal structure without van der Waals contacts?
Bujak, Maciej; Podsiadło, Marcin; Katrusiak, Andrzej; The journal of physical chemistry. B 112 (2008) 1184–1188; doi:10.1021/jp075491p

data_1504351
_publ_section_title
;
 1,1-Dichloroethane: a molecular crystal structure without van der Waals
 contacts?
;
_journal_issue                   4
_journal_name_full               'The journal of physical chemistry. B'
_journal_page_first              1184
_journal_page_last               1188
_journal_paper_doi               10.1021/jp075491p
_journal_volume                  112
_journal_year                    2008
_chemical_formula_moiety         'C2 H4 Cl2'
_chemical_formula_sum            'C2 H4 Cl2'
_chemical_formula_weight         98.95
_chemical_melting_point          176.19
_chemical_name_common
;
 1,1-dichloroethane
;
_chemical_name_systematic
; 
 1,1-dichloroethane 
;
_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   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.3833(10)
_cell_length_b                   9.0641(11)
_cell_length_c                   5.6461(18)
_cell_measurement_reflns_used    2223
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      29.33
_cell_measurement_theta_min      2.76
_cell_volume                     377.85(14)
_computing_cell_refinement       'CrysAlisRED (Oxford Diffraction, 2004)'
_computing_data_collection       'CrysAlisCCD (Oxford Diffraction, 2004)'
_computing_data_reduction
'CrysAlisRED (Oxford Diffraction, 2004); REDSHABS (Katrusiak, A.  2003)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 1990)'
_computing_publication_material  'SHELXL--97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL--97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS--97 (Sheldrick, 1997)'
_diffrn_ambient_environment      'diamond-anvil cell'
_diffrn_ambient_pressure         1510000
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 0.693
_diffrn_measured_fraction_theta_max 0.693
_diffrn_measurement_device_type  'KM-4 CCD'
_diffrn_measurement_method       '\f- and \w-scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_reflns_av_R_equivalents  0.0808
_diffrn_reflns_av_sigmaI/netI    0.0245
_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       4
_diffrn_reflns_limit_l_min       -4
_diffrn_reflns_number            2383
_diffrn_reflns_theta_full        25.24
_diffrn_reflns_theta_max         25.24
_diffrn_reflns_theta_min         4.50
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.462
_exptl_absorpt_correction_T_max  0.71
_exptl_absorpt_correction_T_min  0.67
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
; 
 Correction for absorption of the diamond-anvil cell and the sample 
 were made using program REDSHABS (Katrusiak, A. (2003) REDSHABS. Adam
 Mickiewicz University Pozna\'n; Katrusiak, A. (2004) Z. Kristallogr.
 219, 461-467).
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.739
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cylinder
_exptl_crystal_F_000             200
_exptl_crystal_size_max          0.39
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.271
_refine_diff_density_min         -0.251
_refine_diff_density_rms         0.059
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.106
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     29
_refine_ls_number_reflns         253
_refine_ls_number_restraints     7
_refine_ls_restrained_S_all      1.089
_refine_ls_R_factor_all          0.0397
_refine_ls_R_factor_gt           0.0384
_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^)+(0.0399P)^2^+0.5023P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0917
_refine_ls_wR_factor_ref         0.0927
_reflns_number_gt                244
_reflns_number_total             253
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jp075491p_si.cif
_cod_data_source_block           11DCE_151GPa
_cod_original_cell_volume        377.86(14)
_cod_database_code               1504351