Synthesis, structural characterization, and properties of chromium(III) complexes containing amidinato ligands and eta2-pyrazolato, eta(2)-1,2,4-triazolato, or eta1-tetrazolato ligands.
El-Kadri, Oussama M; Heeg, Mary Jane; Winter, Charles H.; Dalton transactions (Cambridge, England : 2003)  (2006) 4506–4513; doi:10.1039/b607903b

data_7007628
_publ_section_title
;
 Synthesis, structural characterization, and properties of
 chromium(III) complexes containing amidinato ligands and
 eta2-pyrazolato, eta(2)-1,2,4-triazolato, or eta1-tetrazolato ligands.
;
_journal_issue                   37
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4506
_journal_page_last               4513
_journal_paper_doi               10.1039/b607903b
_journal_year                    2006
_chemical_formula_sum            'C25 H49 Cr N6'
_chemical_formula_weight         485.70
_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                 95.526(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.4967(8)
_cell_length_b                   16.5226(12)
_cell_length_c                   15.3293(10)
_cell_measurement_reflns_used    912
_cell_measurement_temperature    213(2)
_cell_measurement_theta_max      28.0
_cell_measurement_theta_min      2.5
_cell_volume                     2898.4(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    SHELXTL-Plus
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      213(2)
_diffrn_measured_fraction_theta_full 0.917
_diffrn_measured_fraction_theta_max 0.917
_diffrn_measurement_device_type  'Bruker P4/CCD'
_diffrn_measurement_method       'SMART CCD'
_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  0.019
_diffrn_reflns_av_sigmaI/netI    0.0256
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            15125
_diffrn_reflns_theta_full        28.30
_diffrn_reflns_theta_max         28.30
_diffrn_reflns_theta_min         1.82
_exptl_absorpt_coefficient_mu    0.416
_exptl_absorpt_correction_T_max  0.9214
_exptl_absorpt_correction_T_min  0.8189
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            'dark violet'
_exptl_crystal_density_diffrn    1.113
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             1060
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.298
_refine_diff_density_min         -0.268
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     305
_refine_ls_number_reflns         6616
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.027
_refine_ls_R_factor_all          0.0508
_refine_ls_R_factor_gt           0.0343
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0474P)^2^+0.9463P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0917
_refine_ls_wR_factor_ref         0.0991
_reflns_number_gt                5163
_reflns_number_total             6616
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b607903b.txt
_cod_data_source_block           crou_(5)
_cod_depositor_comments
;
The following automatic conversions were performed:
'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               7007628