Gyroscope-like molecules consisting of PdX2/PtX2 rotators encased in three-spoke stators: synthesis via alkene metathesis, and facile substitution and demetalation.
Nawara, Agnieszka J; Shima, Takanori; Hampel, Frank; Gladysz, J A; Journal of the American Chemical Society 128 (2006) 4962–4963; doi:10.1021/ja061044w

data_4101463
_publ_section_title
;
 Gyroscope-like molecules consisting of PdX2/PtX2 rotators encased in
 three-spoke stators: synthesis via alkene metathesis, and facile
 substitution and demetalation.
;
_journal_issue                   15
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              4962
_journal_page_last               4963
_journal_paper_doi               10.1021/ja061044w
_journal_volume                  128
_journal_year                    2006
_chemical_formula_sum            'C42 H84 Cl2 P2 Pd'
_chemical_formula_weight         828.33
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 91.2070(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.2233(2)
_cell_length_b                   13.7836(3)
_cell_length_c                   20.1744(4)
_cell_measurement_reflns_used    10752
_cell_measurement_temperature    173(2)
_cell_volume                     4510.31(14)
_computing_cell_refinement       DENZO-SMN
_computing_data_collection       'Nonius Collect'
_computing_data_reduction        DENZO-SMN
_computing_molecular_graphics    'SHELXTL NT'
_computing_publication_material  'SHELXTL NT'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0358
_diffrn_reflns_av_sigmaI/netI    0.0556
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            19981
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.02
_exptl_absorpt_coefficient_mu    0.627
_exptl_absorpt_correction_T_max  0.9399
_exptl_absorpt_correction_T_min  0.9399
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   Scalepack
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.220
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1784
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.473
_refine_diff_density_min         -0.472
_refine_diff_density_rms         0.063
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.963
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     438
_refine_ls_number_reflns         10338
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      0.966
_refine_ls_R_factor_all          0.0646
_refine_ls_R_factor_gt           0.0344
_refine_ls_shift/su_max          0.019
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0409P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0732
_refine_ls_wR_factor_ref         0.0823
_reflns_number_gt                7282
_reflns_number_total             10338
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja061044wsi20060217_072348.cif
_cod_data_source_block           an02
_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 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4101463