Syntheses, Structures, and Reactivities of 2,3-Pyrazyl-Linked Bis(1-aza-allyl) Alkali-Metal Complexes
Leung, Wing-Por; Ip, Queenie Wai-Yan; Lam, Tai-Wing; Mak, Thomas C. W.; Organometallics 23 (2004) 1284–; doi:10.1021/om034323q

data_4076276
_publ_section_title
;
 Syntheses, Structures, and Reactivities of 2,3-Pyrazyl-Linked
 Bis(1-aza-allyl) Alkali-Metal Complexes
;
_journal_issue                   6
_journal_name_full               Organometallics
_journal_page_first              1284
_journal_paper_doi               10.1021/om034323q
_journal_volume                  23
_journal_year                    2004
_chemical_formula_sum            'C62 H136 N8 P4 Pb4 Si8'
_chemical_formula_weight         2171.15
_chemical_name_systematic
; 
 ? 
;
_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                89.48(3)
_cell_angle_beta                 72.35(3)
_cell_angle_gamma                67.73(3)
_cell_formula_units_Z            1
_cell_length_a                   11.702(2)
_cell_length_b                   13.933(3)
_cell_length_c                   17.285(4)
_cell_measurement_temperature    293(2)
_cell_volume                     2467.3(12)
_computing_cell_refinement       'BIOTEX RIGAKU'
_computing_data_collection       'RAXIS-IIC RIGAKU'
_computing_data_reduction        'BIOTEX RIGAKU'
_computing_molecular_graphics    'SIEMENS SHELXTL'
_computing_publication_material  'SIEMENS SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.787
_diffrn_measured_fraction_theta_max 0.787
_diffrn_measurement_device_type  'RAXIS-IIC RIGAKU'
_diffrn_measurement_method       IP
_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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0683
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       0
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            6841
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.25
_exptl_absorpt_coefficient_mu    6.999
_exptl_absorpt_correction_T_max  0.5412
_exptl_absorpt_correction_T_min  0.2279
_exptl_absorpt_correction_type   ABSCOR
_exptl_crystal_colour            ORANGE
_exptl_crystal_density_diffrn    1.461
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             1064
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         2.679
_refine_diff_density_min         -2.861
_refine_diff_density_rms         0.224
_refine_ls_extinction_coef       0.0082(8)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     389
_refine_ls_number_reflns         6841
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0849
_refine_ls_R_factor_gt           0.0780
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1537P)^2^+0.8182P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2056
_refine_ls_wR_factor_ref         0.2151
_reflns_number_gt                6089
_reflns_number_total             6841
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om034323qsi20031125_104155.cif
_cod_data_source_block           Pb
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'TRICLINIC' changed to 'triclinic'
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 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        2467.3(9)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4076276