Dinuclear C,N,C Cyclometalated Platinum Derivatives with Bridging Delocalized Ligands. Fourfold Deprotonation of 6,6‘-Diphenyl-2,2‘-bipyridine, H4L, Promoted by “Pt(R)2” Fragments (R = Me, Ph). Crystal Structures of [Pt2(L)(3,5-Me2py)2] and {Pt2(L)(dppe)}2(dppe = 1,2-Bis(diphenylphosphino)ethane). X-ray Powder Diffraction of [Pt2(L)(CO)2]
Zucca, Antonio; Petretto, Giacomo Luigi; Stoccoro, Sergio; Cinellu, Maria Agostina; Minghetti, Giovanni; Manassero, Mario; Manassero, Carlo; Male, Louise; Albinati, Alberto; Organometallics 25 (2006) 2253–; doi:10.1021/om051075k

data_4074980
_publ_section_title
;
 Dinuclear C,N,C Cyclometalated Platinum Derivatives with Bridging
 Delocalized Ligands. Fourfold Deprotonation of
 6,6&#x2018;-Diphenyl-2,2&#x2018;-bipyridine, H4L, Promoted by
 &#x201C;Pt(R)2&#x201D; Fragments (R = Me, Ph). Crystal Structures of
 [Pt2(L)(3,5-Me2py)2] and {Pt2(L)(dppe)}2(dppe =
 1,2-Bis(diphenylphosphino)ethane). X-ray Powder Diffraction of
 [Pt2(L)(CO)2]
;
_journal_issue                   9
_journal_name_full               Organometallics
_journal_page_first              2253
_journal_paper_doi               10.1021/om051075k
_journal_volume                  25
_journal_year                    2006
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C24 H12 N2 O2 Pt2'
_chemical_formula_sum            'C24 H12 N2 O2 Pt2'
_chemical_formula_weight         750.56
_chemical_name_common            '10, [Pt2(L)(CO)2]'
_chemical_name_systematic
;
 ?
;
_space_group_crystal_system      tetragonal
_space_group_IT_number           114
_space_group_name_H-M_alt        'P -4 21 c'
_symmetry_Int_Tables_number      114
_symmetry_space_group_name_Hall  'P -4 2n'
_symmetry_space_group_name_H-M   'P -4 21 c'
_audit_creation_method           'from EXP file using GSAS2CIF'
_cell_angle_alpha                90.0
_cell_angle_beta                 90.0
_cell_angle_gamma                90.0
_cell_formula_units_Z            4
_cell_length_a                   16.7990(11)
_cell_length_b                   16.799
_cell_length_c                   6.7283(4)
_cell_measurement_temperature    295
_cell_volume                     1898.77(17)
_computing_cell_refinement
'Treor90, (Werner, Eriksson & Westdahl, 1985)'
_computing_data_collection
'DIFFRACplus BASIC Measurement Package, (Bruker AXS, 2002)'
_computing_data_reduction        'DIFFRACplus EVA, (Bruker AXS, 2002)'
_computing_molecular_graphics
'Mercury 1.4 (Cambridge Crystallographic Data Centre, 2005)'
_computing_publication_material  'GSAS (Von Dreele & Larson, 2001)'
_computing_structure_refinement
'GSAS (Von Dreele & Larson, 2001) and DASH 3.0, (David & Shankland, 2004)'
_computing_structure_solution    'DASH 3.0, (David & Shankland, 2004)'
_diffrn_ambient_temperature      295
_diffrn_detector_type            'Run 1: Sol-X. Run 2: Scintillation'
_diffrn_measurement_device_type  'Bruker D8 ADVANCE'
_diffrn_measurement_method
'5 degrees to 63.5 degrees 2 theta. Run 1: 10 s/step. Run 2: 29.8 s/step.'
_diffrn_radiation_monochromator  None
_diffrn_radiation_type           Cu
_diffrn_radiation_wavelength     '1.5406 & 1.54439. Ratio; 0.5'
_diffrn_source_target            Cu
_diffrn_source_type              'fine-focus sealed tube'
_pd_block_diffractogram_id       Compound10
_pd_char_colour                  Orange
_pd_char_particle_morphology     Plates
_pd_meas_2theta_range_inc        0.01
_pd_meas_2theta_range_max        63.5
_pd_meas_2theta_range_min        5
_pd_meas_number_of_points        5850
_pd_meas_scan_method             cont
_pd_proc_2theta_range_inc        0.01
_pd_proc_2theta_range_max        63.5
_pd_proc_2theta_range_min        5
_pd_proc_info_data_reduction
'Run 1 and Run 2 added together in DIFFRACplus EVA, (Bruker AXS, 2002).'
_pd_proc_info_excluded_regions   None
_pd_proc_ls_background_function  'Shifted Chebyschev, 24 Terms'
_pd_proc_ls_pref_orient_corr     None
_pd_proc_ls_profile_function     Pseudo-Voigt
_pd_proc_ls_prof_R_factor        0.1154
_pd_proc_ls_prof_wR_factor       0.1521
_pd_proc_wavelength              '1.5406 & 1.54439. Ratio; 0.5'
_pd_spec_mounting                'Borosilicate glass capillary'
_pd_spec_mount_mode              Transmission
_pd_spec_shape                   cylinder
_pd_spec_size_axial              '20 mm'
_pd_spec_size_equat              '0.4 mm'
_refine_ls_goodness_of_fit_all   5.33
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     6
_refine_ls_number_restraints     0
_refine_ls_R_Fsqd_factor         0.2670
_refine_ls_shift/su_max          0.03
_refine_ls_shift/su_mean         0.01
_refine_ls_weighting_scheme      calc
_cod_data_source_file            om051075ksi20060228_113743.cif
_cod_data_source_block           PtMing3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_geom_bond_publ_flag' value 'N' changed to 'n' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29 (49
times).

'_geom_angle_publ_flag' value 'N' changed to 'n' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.1 from 2010-06-29 (43 times).

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        1898.77(30)
_cod_database_code               4074980