Reactions of 2,4-hexadiyne-1,6-diol with [H2Os3(CO)9(PR3)] clusters. Cyclization of the diyne and reversible exchange of the phosphine ligands between different positions of the "Os3C3" framework.
Tunik, Sergey P.; Khripun, Vassily D.; Haukka, Matti; Pakkanen, Tapani A.; Dalton transactions (Cambridge, England : 2003)  (2004) 1775–1782; doi:10.1039/b403861b

data_7014221
_publ_section_title
;
 Reactions of 2,4-hexadiyne-1,6-diol with [H2Os3(CO)9(PR3)] clusters.
 Cyclization of the diyne and reversible exchange of the phosphine
 ligands between different positions of the "Os3C3" framework.
;
_journal_issue                   11
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1775
_journal_page_last               1782
_journal_paper_doi               10.1039/b403861b
_journal_year                    2004
_chemical_formula_sum            'C30 H14 F9 O9 Os3 P'
_chemical_formula_weight         1290.98
_chemical_name_common            H2Os3(CO)9(P(C6H4MeF3)3)
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_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_creation_method           SHELXL-97
_cell_angle_alpha                82.587(2)
_cell_angle_beta                 81.071(2)
_cell_angle_gamma                77.165(2)
_cell_formula_units_Z            2
_cell_length_a                   10.5872(3)
_cell_length_b                   11.7642(4)
_cell_length_c                   14.5257(4)
_cell_measurement_temperature    100(2)
_cell_volume                     1734.18(9)
_computing_cell_refinement       'Denzo/Scalepack (Otwinowski & Minor, 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction        'Denzo/Scalepack (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'XP in SHELXTL v.6.12 (Bruker AXS, 2002)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.984
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       CCD
_diffrn_radiation_monochromator  'horizonally mounted graphite crystal'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0493
_diffrn_reflns_av_sigmaI/netI    0.0440
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            19072
_diffrn_reflns_theta_full        27.45
_diffrn_reflns_theta_max         27.45
_diffrn_reflns_theta_min         3.69
_exptl_absorpt_coefficient_mu    11.108
_exptl_absorpt_correction_T_max  0.15756
_exptl_absorpt_correction_T_min  0.05194
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Xprep in Shelxtl v.6.12 (Bruker AXS, 2002)'
_exptl_crystal_colour            block
_exptl_crystal_density_diffrn    2.472
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       black
_exptl_crystal_F_000             1180
_exptl_crystal_size_max          0.44
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.18
_refine_diff_density_max         1.511
_refine_diff_density_min         -1.926
_refine_diff_density_rms         0.180
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.063
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     469
_refine_ls_number_reflns         7798
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.063
_refine_ls_R_factor_all          0.0328
_refine_ls_R_factor_gt           0.0274
_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^)+(0.0271P)^2^+2.8821P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0650
_refine_ls_wR_factor_ref         0.0677
_reflns_number_gt                6999
_reflns_number_total             7798
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b403861b.txt
_cod_data_source_block           IV
_cod_database_code               7014221