Molybdenum- and tungsten(ii) monometallic 3-(2-pyridyl)pyrazole and bimetallic 3-(2-pyridyl)pyrazolate complexes.
Arroyo, Marta; Miguel, Daniel; Villafañe, Fernando; Alegria, Elisabete C. B.; Pombeiro, Armando J. L.; Dalton transactions (Cambridge, England : 2003) 41 (2012) 7017–7025; doi:10.1039/c2dt12388f

data_7019219
_publ_section_title
;
 Molybdenum- and tungsten(ii) monometallic 3-(2-pyridyl)pyrazole and
 bimetallic 3-(2-pyridyl)pyrazolate complexes.
;
_journal_issue                   23
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7017
_journal_page_last               7025
_journal_paper_doi               10.1039/c2dt12388f
_journal_volume                  41
_journal_year                    2012
_chemical_formula_sum            'C26 H22 Mo2 N6 O4'
_chemical_formula_weight         674.38
_chemical_name_systematic
;
?
;
_space_group_IT_number           167
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  '-R 3 2"c'
_symmetry_space_group_name_H-M   'R -3 c :H'
_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                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            18
_cell_length_a                   18.316(10)
_cell_length_b                   18.316(9)
_cell_length_c                   42.269(10)
_cell_measurement_reflns_used    743
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      21.39
_cell_measurement_theta_min      2.22
_cell_volume                     12280(9)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.977
_diffrn_measured_fraction_theta_max 0.977
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.1274
_diffrn_reflns_av_sigmaI/netI    0.0836
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -46
_diffrn_reflns_number            17301
_diffrn_reflns_theta_full        23.44
_diffrn_reflns_theta_max         23.44
_diffrn_reflns_theta_min         1.61
_exptl_absorpt_coefficient_mu    0.962
_exptl_absorpt_correction_T_max  1.000000
_exptl_absorpt_correction_T_min  0.718393
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            ORANGE
_exptl_crystal_density_diffrn    1.641
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       PRISM
_exptl_crystal_F_000             6048
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.07
_refine_diff_density_max         2.782
_refine_diff_density_min         -0.465
_refine_diff_density_rms         0.180
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.140
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     183
_refine_ls_number_reflns         1967
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.140
_refine_ls_R_factor_all          0.0983
_refine_ls_R_factor_gt           0.0573
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1013P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1658
_refine_ls_wR_factor_ref         0.1910
_reflns_number_gt                1295
_reflns_number_total             1967
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt12388f.txt
_cod_data_source_block           Compound_6_ma1691am
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Trigonal' changed to 'trigonal'
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_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        12280(14)
_cod_original_sg_symbol_H-M      R-3c
_cod_database_code               7019219