EPR and DFT studies of the one-electron reduction product of phospholium cations.
Adkine, Prashant; Cantat, Thibault; Deschamps, Eliane; Ricard, Louis; Mézailles, Nicolas; Le Floch, Pascal; Geoffroy, Michel; Physical chemistry chemical physics : PCCP 8 (2006) 862–868; doi:10.1039/b513736p

data_7203148
_publ_section_title
;
 EPR and DFT studies of the one-electron reduction product of
 phospholium cations.
;
_journal_issue                   7
_journal_name_full               'Physical chemistry chemical physics : PCCP'
_journal_page_first              862
_journal_page_last               868
_journal_paper_doi               10.1039/b513736p
_journal_volume                  8
_journal_year                    2006
_chemical_formula_sum            'C20 H18 Cl2 I P'
_chemical_formula_weight         487.11
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 104.570(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   19.007(1)
_cell_length_b                   10.697(1)
_cell_length_c                   20.438(1)
_cell_measurement_reflns_used    251
_cell_measurement_temperature    150.0(1)
_cell_measurement_theta_max      20.0
_cell_measurement_theta_min      3.0
_cell_volume                     4021.8(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150.0(1)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  KappaCCD
_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     0.71069
_diffrn_reflns_av_R_equivalents  0.0212
_diffrn_reflns_av_sigmaI/netI    0.0433
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            20481
_diffrn_reflns_theta_full        30.03
_diffrn_reflns_theta_max         30.03
_diffrn_reflns_theta_min         2.80
_exptl_absorpt_coefficient_mu    1.937
_exptl_absorpt_correction_T_max  0.7219
_exptl_absorpt_correction_T_min  0.6753
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.609
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1920
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.18
_refine_diff_density_max         1.314
_refine_diff_density_min         -0.982
_refine_diff_density_rms         0.092
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.005
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     435
_refine_ls_number_reflns         11713
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.005
_refine_ls_R_factor_all          0.0496
_refine_ls_R_factor_gt           0.0318
_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^)+(0.0338P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0699
_refine_ls_wR_factor_ref         0.0750
_reflns_number_gt                8815
_reflns_number_total             11713
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b513736p.txt
_cod_data_source_block           dibenzpme
_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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'P21/n     '
_cod_database_code               7203148