Synthesis, characterization and thermal properties of trimetallic N(3)-Cr[quadruple bond, length as m-dash]CrM-N(3) azide complexes with M = Cr, Mn, Fe, and Co.
Turov, Yevgeniya; Berry, John F.; Dalton transactions (Cambridge, England : 2003) 41 (2012) 8153–8161; doi:10.1039/c2dt30150d

data_7019286
_publ_section_title
;
 Synthesis, characterization and thermal properties of trimetallic
 N(3)-Cr[quadruple bond, length as m-dash]CrM-N(3) azide complexes with M
 = Cr, Mn, Fe, and Co.
;
_journal_issue                   26
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              8153
_journal_page_last               8161
_journal_paper_doi               10.1039/c2dt30150d
_journal_volume                  41
_journal_year                    2012
_chemical_formula_moiety         'C40 H32 Cr3 N18, C4 H10 O'
_chemical_formula_sum            'C44 H42 Cr3 N18 O'
_chemical_formula_weight         993.95
_chemical_name_common            Cr3(dpa)4(N3)2(Et2O)
_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-97
_cell_angle_alpha                90.00
_cell_angle_beta                 104.6260(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.9804(3)
_cell_length_b                   16.2292(3)
_cell_length_c                   17.6685(3)
_cell_measurement_reflns_used    9513
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.5204
_cell_measurement_theta_min      2.4139
_cell_volume                     4433.82(14)
_computing_cell_refinement       'SAINT Ver. 7.24A (Bruker-AXS, 2007)'
_computing_data_collection       'APEX2 Ver. 2.1-4 (Bruker-AXS, 2009)'
_computing_data_reduction        'SAINT Ver. 7.24A'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXTL, OLEX2 (Dolomanov et al., 2009)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker SMART APEX2 area detector'
_diffrn_measurement_method       '0.60\% \w and 0.6\% \f scans'
_diffrn_radiation_monochromator  'mirror optics'
_diffrn_radiation_source         'micro-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0262
_diffrn_reflns_av_sigmaI/netI    0.0137
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            125192
_diffrn_reflns_theta_full        30.54
_diffrn_reflns_theta_max         30.54
_diffrn_reflns_theta_min         1.73
_exptl_absorpt_coefficient_mu    0.781
_exptl_absorpt_correction_T_max  0.8872
_exptl_absorpt_correction_T_min  0.7899
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
SADABS (Bruker-AXS, 2007)
;
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.491
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2048
_exptl_crystal_size_max          0.317
_exptl_crystal_size_mid          0.228
_exptl_crystal_size_min          0.151
_refine_diff_density_max         1.080
_refine_diff_density_min         -0.775
_refine_diff_density_rms         0.063
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    undef
_refine_ls_matrix_type           full
_refine_ls_number_parameters     594
_refine_ls_number_reflns         13569
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0368
_refine_ls_R_factor_gt           0.0316
_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^)+(0.0428P)^2^+3.5356P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0876
_refine_ls_wR_factor_ref         0.0917
_reflns_number_gt                12028
_reflns_number_total             13569
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt30150d.txt
_cod_data_source_block           compound10(100K)
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7019286