Negative linear compression and expanding NH⋯N bonds in an imidazoline compound
Anioła, Michalina; Katrusiak, Andrzej; Kia, Reza; CrystEngComm 14 (2012) 6424–; doi:10.1039/c2ce25507c

data_7208679
_publ_section_title
;
 Negative linear compression and expanding NH&#x22EF;N bonds in an
 imidazoline compound
;
_journal_issue                   20
_journal_name_full               CrystEngComm
_journal_page_first              6424
_journal_paper_doi               10.1039/c2ce25507c
_journal_volume                  14
_journal_year                    2012
_chemical_formula_moiety         'C9 H9 Cl N2'
_chemical_formula_sum            'C9 H9 Cl N2'
_chemical_formula_weight         180.63
_chemical_melting_point          408
_chemical_name_common            2-(3-chlorophenyl)-imidazoline
_chemical_name_systematic        2-(3-chlorophenyl)-imidazoline
_space_group_IT_number           43
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'F 2 -2d'
_symmetry_space_group_name_H-M   'F d d 2'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            16
_cell_length_a                   19.659(9)
_cell_length_b                   38.94(4)
_cell_length_c                   4.070(5)
_cell_measurement_pressure       1200000
_cell_measurement_reflns_used    373
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24.68
_cell_measurement_theta_min      4.65
_cell_volume                     3116(5)
_computing_cell_refinement       'CrysAlis (Oxford Diffraction, 2002)'
_computing_data_collection       'CrysAlis (Oxford Diffraction, 2002)'
_computing_data_reduction        'CrysAlis (Oxford Diffraction, 2002)'
_computing_molecular_graphics    'Mercury 2008'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean 16.4
_diffrn_measured_fraction_theta_full 0.270
_diffrn_measured_fraction_theta_max 0.270
_diffrn_measurement_device_type  'Kuma KM4CCD \k 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  0.3073
_diffrn_reflns_av_sigmaI/netI    0.2401
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       4
_diffrn_reflns_limit_l_min       -4
_diffrn_reflns_number            2892
_diffrn_reflns_theta_full        24.68
_diffrn_reflns_theta_max         24.68
_diffrn_reflns_theta_min         4.65
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.424
_exptl_absorpt_correction_T_max  0.8528
_exptl_absorpt_correction_T_min  0.4911
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details
;
Katrusiak, A. (2003). REDSHABS - Program for correcting
reflections intensities for DAC absorption, gasket shadowing
and sample crystal absorption. Adam Mickiewicz University, Pozna\'n.
Katrusiak, A. (2004). Z. Kristallogr. 219, 461-467

Data were collected at room temperature and pressure of 1.20(5) GPa
(1200000 kPa) with the crystal obtained by the in-situ high-pressure
crystallization technique. Pressure was determined by monitoring
the shift of the ruby R1-fluorescence line.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.540
_exptl_crystal_density_meas      1.540
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1504
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.37
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.427
_refine_diff_density_min         -0.381
_refine_diff_density_rms         0.094
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.8(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.224
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     33
_refine_ls_number_reflns         373
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.222
_refine_ls_R_factor_all          0.1802
_refine_ls_R_factor_gt           0.1266
_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^)+(0.1063P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2628
_refine_ls_wR_factor_ref         0.2861
_reflns_number_gt                250
_reflns_number_total             373
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ce25507c.txt
_cod_data_source_block           1.2GPa
_cod_original_cell_volume        3115(5)
_cod_database_code               7208679