Intense chirality induction in nitrile solvents by a helquat dye monitored by near resonance Raman scattering
Jaroslav Sebestik; Filip Teply; Ivana Cisarova; Jan Vavra; Dusan Koval; Petr Bour; Chem.Commun. 52 (2016) 6257–; doi:

data_7119060
_publ_section_title
;
 Intense chirality induction in nitrile solvents by a helquat dye
 monitored by near resonance Raman scattering
;
_journal_name_full               Chem.Commun.
_journal_page_first              6257
_journal_volume                  52
_journal_year                    2016
_chemical_absolute_configuration ad
_chemical_compound_source        'synthesized by the authors'
_chemical_formula_moiety         'C27 H26 N2, C H3 N O2, 2(I)'
_chemical_formula_sum            'C28 H29 I2 N3 O2'
_chemical_formula_weight         693.34
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2015-06-03 deposited with the CCDC.
2016-04-06 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.9386(2)
_cell_length_b                   17.6476(4)
_cell_length_c                   19.6814(4)
_cell_measurement_reflns_used    9805
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.45
_cell_measurement_theta_min      2.31
_cell_volume                     2757.31(11)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II 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_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0211
_diffrn_reflns_av_sigmaI/netI    0.0155
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            40066
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.55
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.310
_exptl_absorpt_correction_T_max  0.8404
_exptl_absorpt_correction_T_min  0.3848
_exptl_absorpt_correction_type   numerical
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.670
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1360
_exptl_crystal_size_max          0.51
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.730
_refine_diff_density_min         -0.408
_refine_diff_density_rms         0.059
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.031(12)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     320
_refine_ls_number_reflns         6334
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.0199
_refine_ls_R_factor_gt           0.0181
_refine_ls_shift/su_max          0.009
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0207P)^2^+1.5327P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0417
_refine_ls_wR_factor_ref         0.0425
_reflns_number_gt                6087
_reflns_number_total             6334
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c6cc01606e2.cif
_cod_data_source_block           mj349_07
_cod_database_code               7119060