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_7009591
_publ_section_title
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 Synthesis and structures of chromium tricarbonyl complexes of benzylic
 halides and benzylic alcohols&#x200A;&#x2020;
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_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            'C10 H7 Br Cr O3'
_chemical_formula_weight         307.07
_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
_cell_angle_alpha                83.31(3)
_cell_angle_beta                 88.37(3)
_cell_angle_gamma                88.67(3)
_cell_formula_units_Z            2
_cell_length_a                   6.7720(10)
_cell_length_b                   8.541(2)
_cell_length_c                   9.622(2)
_cell_measurement_reflns_used    30
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      29
_cell_measurement_theta_min      20
_cell_volume                     552.41(19)
_computing_cell_refinement       'Nicolet R3'
_computing_data_collection       'Nicolet R3'
_computing_data_reduction        XDISK
_computing_molecular_graphics    XP
_computing_publication_material  CIFTAB
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measurement_device       'Nicolet R3mV '
_diffrn_measurement_method       omega-2theta
_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  0.0194
_diffrn_reflns_av_sigmaI/netI    0.0311
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            2746
_diffrn_reflns_theta_max         27.55
_diffrn_reflns_theta_min         3.01
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 97
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    4.633
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.322
_exptl_absorpt_correction_type   psi
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.846
_exptl_crystal_description       Block
_exptl_crystal_F_000             300
_exptl_crystal_size_max          0.80
_exptl_crystal_size_mid          0.63
_exptl_crystal_size_min          0.48
_refine_diff_density_max         0.690
_refine_diff_density_min         -0.713
_refine_diff_density_rms         0.129
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.023
_refine_ls_goodness_of_fit_obs   1.051
_refine_ls_hydrogen_treatment    'fixed thermal parameter'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     136
_refine_ls_number_reflns         2525
_refine_ls_number_restraints     0
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_refine_ls_restrained_S_obs      1.051
_refine_ls_R_factor_all          0.0655
_refine_ls_R_factor_obs          0.0464
_refine_ls_shift/esd_max         0.000
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0880P)^2^+0.3430P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1487
_refine_ls_wR_factor_obs         0.1236
_reflns_number_observed          1904
_reflns_number_total             2530
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            b002142n.txt
_cod_data_source_block           str560
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0880P)^2^+0.3430P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0880P)^2^+0.3430P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        552.4(2)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7009591