Synthesis and structural analysis of tungsten-carbonyl dimers bridged with oligo(2,5-dialkoxy-1,4-phenylene vinylene)s through pyridine coordination.
Yorsaeng, Sakkawet; Tsutsumi, Ken; Kitiyanan, Boonyarach; Nomura, Kotohiro; Dalton transactions (Cambridge, England : 2003) 44 (2015) 16728–16736; doi:10.1039/c5dt02726h

data_7036179
_publ_section_title
;
 Synthesis and structural analysis of tungsten-carbonyl dimers bridged
 with oligo(2,5-dialkoxy-1,4-phenylene vinylene)s through pyridine
 coordination.
;
_journal_issue                   38
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              16728
_journal_page_last               16736
_journal_paper_doi               10.1039/c5dt02726h
_journal_volume                  44
_journal_year                    2015
_chemical_formula_moiety         'C224 H344 N4 O44 Si12 W4'
_chemical_formula_sum            'C224 H344 N4 O44 Si12 W4'
_chemical_formula_weight         4869.61
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_update_record
;
2015-06-30 deposited with the CCDC.
2015-08-18 downloaded from the CCDC.
;
_cell_angle_alpha                79.707(5)
_cell_angle_beta                 83.506(6)
_cell_angle_gamma                74.287(5)
_cell_formula_units_Z            1
_cell_length_a                   15.2723(10)
_cell_length_b                   17.9800(13)
_cell_length_c                   23.720(2)
_cell_measurement_reflns_used    13875
_cell_measurement_temperature    93
_cell_measurement_theta_max      27.50
_cell_measurement_theta_min      3.10
_cell_volume                     6154.7(8)
_computing_cell_refinement       'CrystalClear-SM Expert 2.1 b45'
_computing_data_collection
'CrystalClear-SM Expert 2.1 b45 (Rigaku, 2015)'
_computing_data_reduction        'CrystalClear-SM Expert 2.1 b45'
_computing_molecular_graphics    'CrystalStructure 4.2'
_computing_publication_material  'CrystalStructure 4.2 (Rigaku, 2015)'
_computing_structure_refinement  'SHELXL Version 2014/7 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      93
_diffrn_detector_area_resol_mean 5.814
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Rigaku XtaLAB P200'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0485
_diffrn_reflns_laue_measured_fraction_full 0.996
_diffrn_reflns_laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            112852
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.563
_diffrn_reflns_theta_min         3.046
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.991
_exptl_absorpt_correction_T_max  0.942
_exptl_absorpt_correction_T_min  0.723
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'REQAB (Rigaku, 1998)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.314
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2532.00
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: dichloromethane/hexane'
_exptl_crystal_size_max          0.320
_exptl_crystal_size_mid          0.270
_exptl_crystal_size_min          0.030
_refine_diff_density_max         5.61
_refine_diff_density_min         -1.10
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.086
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     1679
_refine_ls_number_reflns         28253
_refine_ls_number_restraints     1730
_refine_ls_R_factor_all          0.1303
_refine_ls_R_factor_gt           0.0893
_refine_ls_shift/su_max          0.025
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.1355P)^2^+18.4120P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2453
_refine_ls_wR_factor_ref         0.2643
_reflns_number_gt                17166
_reflns_number_total             28253
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            c5dt02726h2.cif
_cod_data_source_block           trimercomplexes
_cod_depositor_comments
'Adding full bibliography for 7036177--7036179.cif.'
_cod_database_code               7036179
_shelx_res_checksum              9528