Amino Acid Complexes of Metal Carbonyls: Mechanistic Aspects of the CO-Labilizing Ability of Glycinate Ligands in Zero-Valent Chromium and Tungsten Derivatives
Donald J. Darensbourg; Jennifer D. Draper; Joseph H. Reibenspies; Inorganic Chemistry 36 (1997) 3648–3656; doi:10.1021/ic961344m

data_4323521
_publ_section_title
;
 Amino Acid Complexes of Metal Carbonyls: Mechanistic Aspects of the
 CO-Labilizing Ability of Glycinate Ligands in Zero-Valent Chromium and
 Tungsten Derivatives
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              3648
_journal_page_last               3656
_journal_paper_doi               10.1021/ic961344m
_journal_volume                  36
_journal_year                    1997
_chemical_formula_sum            'C16 H29 Cr N2 O7'
_chemical_formula_weight         413.41
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL
_cell_angle_alpha                90.00
_cell_angle_beta                 96.00(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.558(2)
_cell_length_b                   11.519(2)
_cell_length_c                   14.964(3)
_cell_measurement_temperature    293(2)
_cell_volume                     1981.3(6)
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_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  0.0146
_diffrn_reflns_av_sigmaI/netI    0.0462
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            3703
_diffrn_reflns_theta_max         25.07
_diffrn_reflns_theta_min         2.24
_exptl_absorpt_coefficient_mu    0.616
_exptl_crystal_density_diffrn    1.386
_exptl_crystal_F_000             876
_refine_diff_density_max         0.381
_refine_diff_density_min         -0.218
_refine_diff_density_rms         0.050
_refine_ls_extinction_method     none
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_refine_ls_goodness_of_fit_obs   1.079
_refine_ls_matrix_type           full
_refine_ls_number_parameters     226
_refine_ls_number_reflns         3518
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.060
_refine_ls_restrained_S_obs      1.079
_refine_ls_R_factor_all          0.0522
_refine_ls_R_factor_obs          0.0357
_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^)+(0.0313P)^2^+1.1349P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0975
_refine_ls_wR_factor_obs         0.0886
_reflns_number_observed          2848
_reflns_number_total             3520
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            ic961344m_3.cif
_cod_data_source_block           compound3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0313P)^2^+1.1349P] 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^)+(0.0313P)^2^+1.1349P] 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        1981.3(7)
_cod_database_code               4323521