Journey from Mo-Mo Quadruple Bonds to Quintuple Bonds
Yi-Chou Tsai; Hong-Zhang Chen; Chie-Chieh Chang; Jen-Shiang K. Yu; Gene-Hsiang Lee; Yu Wang; Ting-Shen Kuo; Journal of the American Chemical Society 131 (2009) 12534–12535; doi:10.1021/ja905035f

data_4104984
_publ_section_title
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 Journey from Mo-Mo Quadruple Bonds to Quintuple Bonds
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_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              12534
_journal_page_last               12535
_journal_paper_doi               10.1021/ja905035f
_journal_volume                  131
_journal_year                    2009
_chemical_formula_sum            'C78 H102 Mo2 N4'
_chemical_formula_weight         1287.52
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_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                 111.258(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   24.1131(8)
_cell_length_b                   15.1598(6)
_cell_length_c                   20.9379(7)
_cell_measurement_reflns_used    6780
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      25.00
_cell_measurement_theta_min      1.00
_cell_volume                     7133.1(4)
_computing_cell_refinement       DENZO-SMN
_computing_data_collection       'NONIUS COLLECT'
_computing_data_reduction        DENZO-SMN
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'NONIUS KappaCCD'
_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  0.0637
_diffrn_reflns_av_sigmaI/netI    0.0669
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            18761
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.62
_exptl_absorpt_coefficient_mu    0.395
_exptl_absorpt_correction_T_max  0.993
_exptl_absorpt_correction_T_min  0.859
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.199
_exptl_crystal_density_meas      ?
_exptl_crystal_description       plate
_exptl_crystal_F_000             2728
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.02
_refine_diff_density_max         1.468
_refine_diff_density_min         -0.639
_refine_diff_density_rms         0.103
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.014
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     321
_refine_ls_number_reflns         6268
_refine_ls_number_restraints     21
_refine_ls_restrained_S_all      1.031
_refine_ls_R_factor_all          0.0971
_refine_ls_R_factor_gt           0.0639
_refine_ls_shift/su_max          0.020
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1193P)^2^+15.4572P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1712
_refine_ls_wR_factor_ref         0.1950
_reflns_number_gt                4347
_reflns_number_total             6268
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja905035f_si_001.cif
_cod_data_source_block           ic13716
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not_measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
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_cod_database_code               4104984