Mono- and di-nuclear tris(pyrazolyl)borato-oxo-tungsten(V) complexes with phenolate ligands: syntheses and structures, and magnetic, electrochemical and UV/Vis/NIR spectroscopic properties
Keira M. Stobie; Zöe R. Bell; Thomas W. Munhoven; John P. Maher; Jon A. McCleverty; Michael D. Ward; Eric J. L. McInnes; Federico Totti; Dante Gatteschi; Dalton Trans.  (2003) 36–45; doi:10.1039/b208397c

data_7012192
_publ_section_title
;
 Mono- and di-nuclear tris(pyrazolyl)borato-oxo-tungsten(V) complexes
 with phenolate ligands: syntheses and structures, and magnetic,
 electrochemical and UV/Vis/NIR spectroscopic properties
;
_journal_issue                   1
_journal_name_full               'Dalton Trans.'
_journal_page_first              36
_journal_page_last               45
_journal_paper_doi               10.1039/b208397c
_journal_year                    2003
_chemical_formula_sum            'C56 H66 B2 Cl6 N16 O6 W2'
_chemical_formula_weight         1661.27
_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                78.73(2)
_cell_angle_beta                 75.15(2)
_cell_angle_gamma                70.36(2)
_cell_formula_units_Z            2
_cell_length_a                   12.275(4)
_cell_length_b                   17.034(7)
_cell_length_c                   17.117(5)
_cell_measurement_temperature    173(2)
_cell_volume                     3235(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'Siemens SMART Area Detector'
_diffrn_measurement_method
'\w rotation with narrow frames (0.3 degrees)'
_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  0.0747
_diffrn_reflns_av_sigmaI/netI    0.1316
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            34035
_diffrn_reflns_theta_full        27.51
_diffrn_reflns_theta_max         27.51
_diffrn_reflns_theta_min         1.67
_exptl_absorpt_coefficient_mu    3.863
_exptl_absorpt_correction_T_max  0.47
_exptl_absorpt_correction_T_min  0.29
_exptl_absorpt_correction_type   'Empirical, pseudo-azimuthal scan (SADABS)'
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.706
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1644
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.2
_refine_diff_density_max         1.981
_refine_diff_density_min         -1.892
_refine_diff_density_rms         0.161
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     806
_refine_ls_number_reflns         14664
_refine_ls_number_restraints     15
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.1468
_refine_ls_R_factor_gt           0.0652
_refine_ls_shift/su_max          0.013
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0698P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1384
_refine_ls_wR_factor_ref         0.1632
_reflns_number_gt                7829
_reflns_number_total             14664
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b208397c.txt
_cod_data_source_block           complex5a
_cod_original_cell_volume        3234.5(18)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7012192