On the Equilibrium between Alkyne and Olefin Platinum(II) Complexes of Zeise’s Salt Type: Syntheses and Characterization of [K(18C6)][PtCl3(RC≡CR′)]
König, Anja; Bette, Martin; Wagner, Christoph; Lindner, Ronald; Steinborn, Dirk; Organometallics 30 (2011) 5919–; doi:10.1021/om200767q

data_4065393
_publ_section_title
;
 On the Equilibrium between Alkyne and Olefin Platinum(II) Complexes of
 Zeise&#x2019;s Salt Type: Syntheses and Characterization of
 [K(18C6)][PtCl3(RC\\tb CR&#x2032;)]
;
_journal_issue                   21
_journal_name_full               Organometallics
_journal_page_first              5919
_journal_paper_doi               10.1021/om200767q
_journal_volume                  30
_journal_year                    2011
_chemical_formula_sum            'C21 H28 Cl3 K O6 Pt'
_chemical_formula_weight         716.97
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.8039(6)
_cell_length_b                   9.8499(8)
_cell_length_c                   28.3364(18)
_cell_measurement_reflns_used    24
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24.7
_cell_measurement_theta_min      12.4
_cell_volume                     2736.4(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(1)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  STOE-STADI-IV
_diffrn_measurement_method       \w--2\q
_diffrn_radiation_collimation    '0.5 mm'
_diffrn_radiation_detector       'NaI(Tl) scintillation counter'
_diffrn_radiation_monochromator  'planar graphite'
_diffrn_radiation_polarisn_norm  90
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0514
_diffrn_reflns_av_sigmaI/netI    0.0643
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            10051
_diffrn_reflns_theta_full        25.28
_diffrn_reflns_theta_max         25.28
_diffrn_reflns_theta_min         2.19
_diffrn_standards_decay_%        9.5
_diffrn_standards_interval_time  60
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    5.604
_exptl_absorpt_correction_T_max  0.4224
_exptl_absorpt_correction_T_min  0.2150
_exptl_absorpt_correction_type   psi-scans
_exptl_absorpt_process_details   '(X-RED 1.07; Stoe & Cie, 1999)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.740
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1400
_exptl_crystal_size_max          0.57
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.19
_refine_diff_density_max         0.590
_refine_diff_density_min         -0.504
_refine_diff_density_rms         0.097
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.017(10)
_refine_ls_extinction_coef       0.00034(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   1.068
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     291
_refine_ls_number_reflns         4913
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.0601
_refine_ls_R_factor_gt           0.0384
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0280P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0741
_refine_ls_wR_factor_ref         0.0834
_reflns_number_gt                3948
_reflns_number_total             4913
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om200767q_si_003.cif
_cod_data_source_block           z:\s1060
_cod_original_sg_symbol_H-M      P212121
_cod_database_code               4065393