Synthesis and structures of chromium tricarbonyl complexes of benzylic halides and benzylic alcohols †
Christofi, A. Maria; Garratt, Peter J.; Hogarth, Graeme; Steed, Jonathan W.; Journal of the Chemical Society, Dalton Transactions  (2000) 2137–; doi:10.1039/b002142n

data_7009589
_publ_section_title
;
 Synthesis and structures of chromium tricarbonyl complexes of benzylic
 halides and benzylic alcohols&#x200A;&#x2020;
;
_journal_issue                   13
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              2137
_journal_paper_doi               10.1039/b002142n
_journal_year                    2000
_chemical_formula_sum            'C11 H8 Br2 Cr O3'
_chemical_formula_weight         399.99
_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                 105.026(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.0413(3)
_cell_length_b                   12.5369(6)
_cell_length_c                   10.7044(5)
_cell_measurement_temperature    100(2)
_cell_volume                     1301.47(10)
_computing_cell_refinement       DENZO-SMN
_computing_data_reduction        DENZO-SMN
_computing_molecular_graphics    RES2INS
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       '2o phi scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0577
_diffrn_reflns_av_sigmaI/netI    0.0649
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            11366
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         3.80
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count n/a
_diffrn_standards_interval_time  n/a
_diffrn_standards_number         n/a
_exptl_absorpt_coefficient_mu    7.010
_exptl_absorpt_correction_T_max  0.5407
_exptl_absorpt_correction_T_min  0.3345
_exptl_absorpt_correction_type   Scalepack
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    2.041
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             768
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.895
_refine_diff_density_min         -1.138
_refine_diff_density_rms         0.165
_refine_ls_extinction_coef       0.0045(8)
_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   1.077
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     155
_refine_ls_number_reflns         2537
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.077
_refine_ls_R_factor_all          0.0442
_refine_ls_R_factor_gt           0.0387
_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^)+(0.0468P)^2^+1.2809P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0976
_refine_ls_wR_factor_ref         0.1009
_reflns_number_gt                2249
_reflns_number_total             2537
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b002142n.txt
_cod_data_source_block           crbr2
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               7009589