Mono- and di-nuclear complexes of (trpy)MII (M = Pd, Pt) with the model nucleobase 1-methylcytosine. Crystal structure and NMR solution studies
Coşar, Sultan; Janik, Matthias B. L.; Flock, Matthias; Freisinger, Eva; Farkas, Etelka; Lippert, Bernhard; Journal of the Chemical Society, Dalton Transactions  (1999) 2329–; doi:10.1039/a902862e

data_7027449
_publ_section_title
;
 Mono- and di-nuclear complexes of (trpy)MII (M = Pd, Pt) with the model 
 nucleobase 1-methylcytosine. Crystal structure and NMR solution studies
;
_journal_issue                   14
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              2329
_journal_paper_doi               10.1039/a902862e
_journal_year                    1999
_chemical_formula_sum            'C20 H28 N8 O12 Pt'
_chemical_formula_weight         767.59
_chemical_name_systematic        ?
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     patterson
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL
_cell_angle_alpha                90.00
_cell_angle_beta                 98.70(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.061(2)
_cell_length_b                   9.993(2)
_cell_length_c                   24.211(5)
_cell_measurement_reflns_used    8522
_cell_measurement_temperature    126(2)
_cell_measurement_theta_max      25.66
_cell_measurement_theta_min      2.76
_cell_volume                     2645.3(9)
_computing_cell_refinement       'DENZO, SCALEPACK (Otwinowski, Minor, 1997)'
_computing_data_collection       'KappaCCD (Nonius BV, Netherlands)'
_computing_data_reduction        'DENZO, SCALEPACK (Otwinowski, Minor, 1997)'
_computing_molecular_graphics    'Siemens SHELXTL-PLUS(VMS)'
_computing_publication_material  SHELXL-93
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      126(2)
_diffrn_detector_area_resol_mean '19 vertical, 18 horizontal'
_diffrn_measurement_device       Enraf-Nonius-KappaCCD
_diffrn_measurement_method
;
360 frames via \w-rotation (\D\w\=1\%) and two times 20s per frame
;
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0292
_diffrn_reflns_av_sigmaI/netI    0.0411
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            8522
_diffrn_reflns_theta_max         25.66
_diffrn_reflns_theta_min         2.76
_exptl_absorpt_coefficient_mu    5.382
_exptl_absorpt_correction_T_max  0.2545
_exptl_absorpt_correction_T_min  0.1739
_exptl_absorpt_correction_type   SCALEPACK
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.927
_exptl_crystal_description       cube
_exptl_crystal_F_000             1512
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.35
_refine_diff_density_max         1.391
_refine_diff_density_min         -0.952
_refine_diff_density_rms         0.098
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.007(6)
_refine_ls_extinction_coef       0.00016(9)
_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   1.042
_refine_ls_goodness_of_fit_obs   1.057
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     371
_refine_ls_number_reflns         4886
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.058
_refine_ls_restrained_S_obs      1.057
_refine_ls_R_factor_all          0.0252
_refine_ls_R_factor_obs          0.0238
_refine_ls_shift/esd_max         -0.068
_refine_ls_shift/esd_mean        0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0351P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0592
_refine_ls_wR_factor_obs         0.0579
_reflns_number_observed          4699
_reflns_number_total             4890
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            902862Esup1.cif
_cod_data_source_block           3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0351P)^2^+0.0000P] 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^)+(0.0351P)^2^+0.0000P] 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      Cc
_cod_database_code               7027449