New bis-, tris- and tetrakis(pyrazolyl)borate ligands with 3-pyridyl and 4-pyridyl substituents: synthesis and coordination chemistry.
Adams, Harry; Batten, Stuart R.; Davies, Graham M.; Duriska, Martin B.; Jeffery, John C.; Jensen, Paul; Lu, Jinzhen; Motson, Graham R.; Coles, Simon J.; Hursthouse, Michael B.; Ward, Michael D.; Dalton transactions (Cambridge, England : 2003)  (2005) 1910–1923; doi:10.1039/b502892b

data_7008440
_publ_section_title
;
 New bis-, tris- and tetrakis(pyrazolyl)borate ligands with 3-pyridyl
 and 4-pyridyl substituents: synthesis and coordination chemistry.
;
_journal_issue                   11
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1910
_journal_page_last               1923
_journal_paper_doi               10.1039/b502892b
_journal_year                    2005
_chemical_formula_sum            'C8 H7 N3'
_chemical_formula_weight         145.17
_chemical_name_common            3pypz
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_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                90.00
_cell_formula_units_Z            4
_cell_length_a                   21.853(4)
_cell_length_b                   8.4566(17)
_cell_length_c                   3.8270(8)
_cell_measurement_reflns_used    4602
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      28.08
_cell_measurement_theta_min      3.05
_cell_volume                     707.2(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_detector                 CCD
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.971
_diffrn_measured_fraction_theta_max 0.953
_diffrn_measurement_device_type  'Nonius KappaCCD diffractometer'
_diffrn_measurement_method       '\f and \w 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  0.0974
_diffrn_reflns_av_sigmaI/netI    0.0741
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       3
_diffrn_reflns_limit_l_min       -4
_diffrn_reflns_number            4596
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         28.08
_diffrn_reflns_theta_min         3.69
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.363
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Rod
_exptl_crystal_F_000             304
_exptl_crystal_size_max          0.75
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.248
_refine_diff_density_min         -0.359
_refine_diff_density_rms         0.079
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     104
_refine_ls_number_reflns         934
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.1035
_refine_ls_R_factor_gt           0.0494
_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^)+(0.0635P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0976
_refine_ls_wR_factor_ref         0.1203
_reflns_number_gt                601
_reflns_number_total             934
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b502892b.txt
_cod_data_source_block           3pypz(polymorphI)
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'None' changed to
'none' 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_cell_volume        707.3(2)
_cod_original_sg_symbol_H-M      Pna21
_cod_database_code               7008440