Chromium Complexes Supported by the Multidentate Monoanionic N2P2Ligand: Reduction Chemistry and Reactivity with Ethylene
Rozenel, Sergio S.; Chomitz, Wayne A.; Arnold, John; Organometallics 28 (2009) 6243–; doi:10.1021/om900695s

data_4070267
_publ_section_title
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 Chromium Complexes Supported by the Multidentate Monoanionic N2P2Ligand:
 Reduction Chemistry and Reactivity with Ethylene
;
_journal_issue                   21
_journal_name_full               Organometallics
_journal_page_first              6243
_journal_paper_doi               10.1021/om900695s
_journal_volume                  28
_journal_year                    2009
_chemical_formula_moiety         'C22 H51 Cl Cr N2 P2 Si, C4 H8 O, B F4'
_chemical_formula_sum            'C26 H59 B Cl Cr F4 N2 O P2 Si'
_chemical_formula_weight         680.04
_chemical_melting_point          189.5(15)
_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                96.570(6)
_cell_angle_beta                 91.873(7)
_cell_angle_gamma                98.387(7)
_cell_formula_units_Z            2
_cell_length_a                   11.570(6)
_cell_length_b                   11.938(7)
_cell_length_c                   13.261(7)
_cell_measurement_reflns_used    9467
_cell_measurement_temperature    125(2)
_cell_measurement_theta_max      50.703
_cell_measurement_theta_min      4.848
_cell_volume                     1797.9(17)
_computing_cell_refinement       'Bruker SAINT v7.07'
_computing_data_collection       'Bruker SMART v5.054d'
_computing_data_reduction        'Bruker SAINT v7.07'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      125(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  'SMART 1000'
_diffrn_measurement_method       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  0.0243
_diffrn_reflns_av_sigmaI/netI    0.0334
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            16812
_diffrn_reflns_theta_full        25.37
_diffrn_reflns_theta_max         25.37
_diffrn_reflns_theta_min         2.42
_exptl_absorpt_coefficient_mu    0.557
_exptl_absorpt_correction_T_max  0.880
_exptl_absorpt_correction_T_min  0.832
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'Blessing, 1995'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.256
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             726
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.425
_refine_diff_density_min         -0.369
_refine_diff_density_rms         0.059
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.257
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     380
_refine_ls_number_reflns         6489
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.257
_refine_ls_R_factor_all          0.0551
_refine_ls_R_factor_gt           0.0416
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0743P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1245
_refine_ls_wR_factor_ref         0.1349
_reflns_number_gt                5211
_reflns_number_total             6489
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om900695s_si_002.cif
_cod_data_source_block           srd314_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '188-191' was changed to '189.5(15)'
- the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
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_cod_database_code               4070267