N,N-Bis(2-mercaptoethyl)methylamine: A New Coligand for Tc-99m Labeling of Hydrazinonicotinamide Peptides
Banerjee, Sangeeta R.; Maresca, Kevin P.; Stephenson, Karin A.; Valliant, John F.; Babich, John W.; Graham, Wendy A.; Barzana, Marlene; Dong, Qing; Fischman, Alan J.; Zubieta, Jon; Bioconjugate Chemistry 16 (2005) 885–; doi:10.1021/bc050040y

data_1506328
_publ_section_title
;
 N,N-Bis(2-mercaptoethyl)methylamine:&#x00A0; A New Coligand for Tc-99m
 Labeling of Hydrazinonicotinamide Peptides
;
_journal_issue                   4
_journal_name_full               'Bioconjugate Chemistry'
_journal_page_first              885
_journal_paper_doi               10.1021/bc050040y
_journal_volume                  16
_journal_year                    2005
_chemical_formula_sum            'C15 H20 N7 Re S2'
_chemical_formula_weight         548.70
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL
_cell_angle_alpha                90.00
_cell_angle_beta                 90.958(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.0008(3)
_cell_length_b                   20.5058(5)
_cell_length_c                   11.6366(4)
_cell_measurement_temperature    293(2)
_cell_volume                     1908.87(11)
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_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  0.1726
_diffrn_reflns_av_sigmaI/netI    0.1297
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            7290
_diffrn_reflns_theta_max         22.49
_diffrn_reflns_theta_min         1.99
_exptl_absorpt_coefficient_mu    6.598
_exptl_crystal_colour            Brown
_exptl_crystal_density_diffrn    1.909
_exptl_crystal_description       Plate
_exptl_crystal_F_000             1064
_exptl_crystal_size_max          .11
_exptl_crystal_size_mid          .08
_exptl_crystal_size_min          .06
_refine_diff_density_max         1.576
_refine_diff_density_min         -1.590
_refine_diff_density_rms         0.234
_refine_ls_extinction_coef       0.0007(3)
_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_all   1.097
_refine_ls_goodness_of_fit_obs   1.165
_refine_ls_matrix_type           full
_refine_ls_number_parameters     227
_refine_ls_number_reflns         2481
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.097
_refine_ls_restrained_S_obs      1.165
_refine_ls_R_factor_all          0.0878
_refine_ls_R_factor_obs          0.0768
_refine_ls_shift/esd_max         0.001
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0339P)^2^+26.3936P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1368
_refine_ls_wR_factor_obs         0.1173
_reflns_number_observed          1746
_reflns_number_total             2481
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            bc050040ysi20050214_022135.cif
_cod_data_source_block           compound_5
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0339P)^2^+26.3936P] where P=(Fo^2^+2Fc^2^)/3'
was changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0339P)^2^+26.3936P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_original_formula_sum        'C15 H20 N7 S2 Re '
_cod_database_code               1506328