Synthesis and structure of a series of tungsten(ii) and tungsten(vi) diynyl and diyndiyl complexes
Roberts, Rachel L.; Puschmann, Horst; Howard, Judith A. K.; Yamamoto, John H.; Carty, Arthur J.; Low, Paul J.; Dalton Transactions  (2003) 1099–; doi:10.1039/b212074g

data_7012546
_publ_section_title
;
 Synthesis and structure of a series of tungsten(ii) and tungsten(vi)
 diynyl and diyndiyl complexes
;
_journal_issue                   6
_journal_name_full               'Dalton Transactions'
_journal_page_first              1099
_journal_paper_doi               10.1039/b212074g
_journal_year                    2003
_chemical_formula_moiety         'C17 H16 O3 W'
_chemical_formula_sum            'C17 H16 O3 W'
_chemical_formula_weight         452.15
_chemical_name_common
;(1,2,3,4,5-pentamethyl
cyclopentadienyl)(tricarbonyl)tungsten(buta-1,3-diynyl)
;
_chemical_name_systematic
; 
? 
;
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_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                   19.1104(5)
_cell_length_b                   10.8040(3)
_cell_length_c                   7.4292(2)
_cell_measurement_reflns_used    7101
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.463
_cell_measurement_theta_min      2.166
_cell_volume                     1533.90(7)
_computing_cell_refinement       'SMART version 5.060 (Bruker, 1999)'
_computing_data_collection       'SMART version 5.060 (Bruker, 1999)'
_computing_data_reduction        'SAINT version 6.02A (Bruker, 2001)'
_computing_molecular_graphics    'SHELXTL version 5.10 (Bruker, 1997)'
_computing_publication_material  'SHELXTL version 5.10 (Bruker, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 8
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART CCD 1K area detector'
_diffrn_measurement_method       \w-scans
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0434
_diffrn_reflns_av_sigmaI/netI    0.0229
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            16022
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.13
_exptl_absorpt_coefficient_mu    7.537
_exptl_absorpt_correction_T_max  0.323
_exptl_absorpt_correction_T_min  0.308
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (G.M.Sheldrick, 1998)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.958
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    .
_exptl_crystal_description       block
_exptl_crystal_F_000             864
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.978
_refine_diff_density_min         -1.418
_refine_diff_density_rms         0.122
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.109
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     136
_refine_ls_number_reflns         1853
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.109
_refine_ls_R_factor_all          0.0300
_refine_ls_R_factor_gt           0.0227
_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^)+(0.0110P)^2^+3.9836P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0427
_refine_ls_wR_factor_ref         0.0446
_reflns_number_gt                1587
_reflns_number_total             1853
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b212074g.txt
_cod_data_source_block           01srv144Compound1
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
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      Pnma
_cod_database_code               7012546