Synthesis and Characterization of Organometallic Ionic Liquids and a Heterometallic Carbene Complex Containing the Chromium Tricarbonyl Fragment
Moret, Marc-Etienne; Chaplin, Adrian B.; Lawrence, Adrien K.; Scopelliti, Rosario; Dyson, Paul J.; Organometallics 24 (2005) 4039–; doi:10.1021/om050283+

data_4083950
_publ_section_title
;
 Synthesis and Characterization of Organometallic Ionic Liquids and a
 Heterometallic Carbene Complex Containing the Chromium Tricarbonyl
 Fragment
;
_journal_issue                   16
_journal_name_full               Organometallics
_journal_page_first              4039
_journal_paper_doi               10.1021/om050283+
_journal_volume                  24
_journal_year                    2005
_chemical_formula_moiety         'C14 H13 Cr N2 O3, Br'
_chemical_formula_sum            'C14 H13 Br Cr N2 O3'
_chemical_formula_weight         389.17
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                105.556(10)
_cell_angle_beta                 94.241(10)
_cell_angle_gamma                91.013(11)
_cell_formula_units_Z            2
_cell_length_a                   8.3713(13)
_cell_length_b                   9.0861(12)
_cell_length_c                   10.3104(11)
_cell_measurement_reflns_used    2365
_cell_measurement_temperature    140(2)
_cell_measurement_theta_max      26.0838
_cell_measurement_theta_min      3.12185
_cell_volume                     752.86(18)
_computing_cell_refinement       'Oxford Diffraction CrysAlis RED'
_computing_data_collection       'Oxford Diffraction CrysAlis CCD'
_computing_data_reduction        'Oxford Diffraction CrysAlis RED'
_computing_molecular_graphics    'Cystal Impact DIAMOND'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      140(2)
_diffrn_measured_fraction_theta_full 0.870
_diffrn_measured_fraction_theta_max 0.870
_diffrn_measurement_device_type  'Oxford Diffraction KM4/Sapphire CCD'
_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     0.71073
_diffrn_reflns_av_R_equivalents  0.0529
_diffrn_reflns_av_sigmaI/netI    0.0631
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            4469
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         3.31
_exptl_absorpt_coefficient_mu    3.423
_exptl_absorpt_correction_T_max  0.7660
_exptl_absorpt_correction_T_min  0.3440
_exptl_absorpt_correction_type   refdelf
_exptl_absorpt_process_details
; 
(See: Walker, N. & Stuart, D. (1983) Acta Cryst. A39, 158-166) 
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.717
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             388
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.09
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.591
_refine_diff_density_min         -0.605
_refine_diff_density_rms         0.111
_refine_ls_extinction_coef       0.0013(18)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.983
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     192
_refine_ls_number_reflns         2313
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.983
_refine_ls_R_factor_all          0.0488
_refine_ls_R_factor_gt           0.0391
_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^)+(0.0570P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0944
_refine_ls_wR_factor_ref         0.0977
_reflns_number_gt                1832
_reflns_number_total             2313
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om050283%2Bsi20050527_114243.cif
_cod_data_source_block           pd168
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/ACS/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        752.86(17)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4083950