Chemistry of the Strong Electrophilic Metal Fragment [99Tc(N)(PXP)]2+ (PXP = Diphosphine Ligand). A Novel Tool for the Selective Labeling of Small Molecules
Cristina Bolzati; Alessandra Boschi; Licia Uccelli; Francesco Tisato; Fiorenzo Refosco; Aldo Cagnolini; Adriano Duatti; Sushumna Prakash; Giuliano Bandoli; Andrea Vittadini; Journal of the American Chemical Society 124 (2002) 11468–11479; doi:10.1021/ja0200239

data_4115146
_publ_section_title
;
 Chemistry of the Strong Electrophilic Metal Fragment [99Tc(N)(PXP)]2+
 (PXP = Diphosphine Ligand). A Novel Tool for the Selective Labeling of
 Small Molecules
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              11468
_journal_page_last               11479
_journal_paper_doi               10.1021/ja0200239
_journal_volume                  124
_journal_year                    2002
_chemical_formula_sum            'C28 H28 Cl2 N O P2 Re'
_chemical_formula_weight         713.55
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     heavy
_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            8
_cell_length_a                   20.048(4)
_cell_length_b                   13.737(3)
_cell_length_c                   20.285(4)
_cell_measurement_reflns_used    40
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      11.7
_cell_measurement_theta_min      7.6
_cell_volume                     5586(2)
_computing_cell_refinement       'P3/P4-PC vers.4.27 (Nicolet, 1991)'
_computing_data_collection       'P3/P4-PC vers.4.27 (Nicolet, 1991)'
_computing_data_reduction        'P3/P4-PC vers.4.27 (Nicolet, 1991)'
_computing_molecular_graphics    'SHELXTL NT vers.5.10 (Sheldrick, 1999)'
_computing_publication_material  'SHELXTL NT vers.5.10 (Sheldrick, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXTL NT vers.5.10 (Sheldrick, 1999)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'Nicolet Siemens R3m/V diffractometer'
_diffrn_measurement_method       theta-2theta
_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  0.0651
_diffrn_reflns_av_sigmaI/netI    0.0312
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       0
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            3886
_diffrn_reflns_theta_full        23.08
_diffrn_reflns_theta_max         23.08
_diffrn_reflns_theta_min         2.06
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 150
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    4.678
_exptl_absorpt_correction_T_max  0.962
_exptl_absorpt_correction_T_min  0.418
_exptl_absorpt_correction_type   psi-scan
_exptl_crystal_colour            bright_orange
_exptl_crystal_density_diffrn    1.697
_exptl_crystal_description       parallelepipeds
_exptl_crystal_F_000             2800
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         2.088
_refine_diff_density_min         -1.855
_refine_diff_density_rms         0.282
_refine_ls_extinction_coef       0.00000(13)
_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   1.008
_refine_ls_hydrogen_treatment    'riding model '
_refine_ls_matrix_type           full
_refine_ls_number_parameters     317
_refine_ls_number_reflns         3885
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.008
_refine_ls_R_factor_all          0.0932
_refine_ls_R_factor_gt           0.0636
_refine_ls_shift/su_max          0.442
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1496P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1611
_refine_ls_wR_factor_ref         0.1877
_reflns_number_gt                2688
_reflns_number_total             3885
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0200239_1.cif
_cod_data_source_block           2m
_cod_original_cell_volume        5586.5(19)
_cod_database_code               4115146