Platinum(ii) compounds bearing bone-targeting group: synthesis, crystal structure and antitumor activity
Xue, Zuqin; Lin, Miaoxin; Zhu, Jianhui; Zhang, Junfeng; Li, Yizhi; Guo, Zijian; Chemical Communications 46 (2010) 1212–; doi:10.1039/b922222g

data_7105262
_publ_section_title
;
 Platinum(ii) compounds bearing bone-targeting group: synthesis,
 crystal structure and antitumor activity
;
_journal_issue                   8
_journal_name_full               'Chemical Communications'
_journal_page_first              1212
_journal_paper_doi               10.1039/b922222g
_journal_volume                  46
_journal_year                    2010
_chemical_formula_moiety         'C16 H30 Cl2 N2 O6 P2 Pt'
_chemical_formula_sum            'C16 H30 Cl2 N2 O6 P2 Pt'
_chemical_formula_weight         674.35
_chemical_melting_point          ?
_chemical_name_common
;
cis-Dichloro-(tetraethyl(2-(pyridin-2-yl)ethylamino)
methylenediphosphonate-N,N')-platinum(ii)
;
_chemical_name_systematic
;
cis-Dichloro-(tetraethyl(2-(pyridin-2-yl)ethylamino)
methylenediphosphonate-N,N')-platinum(ii)
;
_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-97
_cell_angle_alpha                90.00
_cell_angle_beta                 92.245(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.1843(17)
_cell_length_b                   15.077(3)
_cell_length_c                   20.042(4)
_cell_measurement_reflns_used    2054
_cell_measurement_temperature    291(2)
_cell_measurement_theta_max      25.74
_cell_measurement_theta_min      2.67
_cell_volume                     2471.2(9)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 2000)'
_computing_data_reduction        'SAINT (Bruker, 2000)'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL (Bruker, 2000)'
_diffrn_ambient_temperature      291(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_method       'phi and omega 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  0.0412
_diffrn_reflns_av_sigmaI/netI    0.0628
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            13273
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.03
_exptl_absorpt_coefficient_mu    6.056
_exptl_absorpt_correction_T_max  0.38
_exptl_absorpt_correction_T_min  0.20
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS; Bruker, 2000'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.813
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1320
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.16
_refine_diff_density_max         1.026
_refine_diff_density_min         -1.453
_refine_diff_density_rms         0.127
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     266
_refine_ls_number_reflns         4846
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0699
_refine_ls_R_factor_gt           0.0498
_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^)+(0.0515P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1036
_refine_ls_wR_factor_ref         0.1071
_reflns_number_gt                3469
_reflns_number_total             4846
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b922222g.txt
_cod_data_source_block           280603a_0m
_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_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_chemical_melting_point' value 'not measured' was changed to '?' -
the value is undefined or not given.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7105262