Carbene complexes of phosphorus(v) fluorides substituted with perfluoroalkyl-groups synthesized by oxidative addition. Cleavage of the complexes reveals a new synthetic protocol for ionic liquids.
Böttcher, Tobias; Steinhauer, Simon; Allefeld, Nadine; Hoge, Berthold; Neumann, Beate; Stammler, Hans Georg; Bassil, Bassem S.; Winter, Martin; Mitzel, Norbert W.; Röschenthaler, Gerd-Volker; Dalton transactions (Cambridge, England : 2003) 43 (2014) 2979–2987; doi:10.1039/c3dt53043d

data_7028423
_publ_section_title
;
 Carbene complexes of phosphorus(v) fluorides substituted with
 perfluoroalkyl-groups synthesized by oxidative addition. Cleavage of the
 complexes reveals a new synthetic protocol for ionic liquids.
;
_journal_issue                   7
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              2979
_journal_page_last               2987
_journal_paper_doi               10.1039/c3dt53043d
_journal_volume                  43
_journal_year                    2014
_chemical_formula_sum            'C5 H10 Cl2 N2'
_chemical_formula_weight         169.05
_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   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            4
_cell_length_a                   12.203(3)
_cell_length_b                   8.517(2)
_cell_length_c                   7.388(3)
_cell_measurement_reflns_used    69
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      14.90
_cell_measurement_theta_min      3.95
_cell_volume                     767.9(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT, SADABS and XPREP'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(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       '2\q/\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  0.0956
_diffrn_reflns_av_sigmaI/netI    0.0731
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            4033
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.22
_exptl_absorpt_coefficient_mu    0.760
_exptl_absorpt_correction_T_max  0.9279
_exptl_absorpt_correction_T_min  0.6182
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.462
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             352
_exptl_crystal_size_max          0.70
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.128
_refine_diff_density_min         -0.748
_refine_diff_density_rms         0.165
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.006
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     46
_refine_ls_number_reflns         942
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.006
_refine_ls_R_factor_all          0.0876
_refine_ls_R_factor_gt           0.0760
_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^)+(0.1200P)^2^+2.5000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1970
_refine_ls_wR_factor_ref         0.2072
_reflns_number_gt                772
_reflns_number_total             942
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt53043d.txt
_cod_data_source_block           compound2a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/usr/data/users/saulius/automatic-downloads/current/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_cell_volume        767.8(4)
_cod_original_sg_symbol_H-M      Pnma
_cod_database_code               7028423