Transition from a Nonbonding to a Bonding Interaction in a Tetranuclear [Mo2]2(mu-OR)4 Cluster
F. Albert Cotton; Zhong Li; Chun Y. Liu; Carlos A. Murillo; Qinliang Zhao; Inorganic Chemistry 45 (2006) 6387–6395; doi:10.1021/ic060604p

data_4346011
_publ_section_title
;
 Transition from a Nonbonding to a Bonding Interaction in a Tetranuclear
 [Mo2]2(mu-OR)4 Cluster
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              6387
_journal_page_last               6395
_journal_paper_doi               10.1021/ic060604p
_journal_volume                  45
_journal_year                    2006
_chemical_formula_moiety         'C68 H80 Mo4 N8 O12, 2(C H2 Cl2)'
_chemical_formula_sum            'C70 H84 Cl4 Mo4 N8 O12'
_chemical_formula_weight         1755.01
_chemical_name_common            '[Mo2(C15H15N2O2)2]2(OCH2CH3)4, 2CH2Cl2)'
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                104.812(2)
_cell_angle_beta                 106.064(2)
_cell_angle_gamma                108.693(2)
_cell_formula_units_Z            1
_cell_length_a                   10.4659(12)
_cell_length_b                   14.7445(17)
_cell_length_c                   14.9192(17)
_cell_measurement_temperature    213(2)
_cell_volume                     1939.9(4)
_computing_cell_refinement       SAINT
_computing_data_collection       SMART
_computing_data_reduction        SAINT
_computing_molecular_graphics    XP
_computing_publication_material  XCIF
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      213(2)
_diffrn_measured_fraction_theta_full 0.953
_diffrn_measured_fraction_theta_max 0.953
_diffrn_measurement_device_type  'BRUKER SMART 1000'
_diffrn_measurement_method       \w-scans
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0137
_diffrn_reflns_av_sigmaI/netI    0.0248
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            13216
_diffrn_reflns_theta_full        27.54
_diffrn_reflns_theta_max         27.54
_diffrn_reflns_theta_min         2.12
_diffrn_standards_number         'none, area detector'
_exptl_absorpt_coefficient_mu    0.831
_exptl_absorpt_correction_T_max  0.9365
_exptl_absorpt_correction_T_min  0.8515
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.502
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             892
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.08
_refine_diff_density_max         1.215
_refine_diff_density_min         -0.851
_refine_diff_density_rms         0.096
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     474
_refine_ls_number_reflns         8543
_refine_ls_number_restraints     46
_refine_ls_restrained_S_all      1.164
_refine_ls_R_factor_all          0.0426
_refine_ls_R_factor_gt           0.0361
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0646P)^2^+2.1256P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1052
_refine_ls_wR_factor_ref         0.1120
_reflns_number_gt                7381
_reflns_number_total             8543
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic060604psi20060411_123409.cif
_cod_data_source_block           xl-4
_cod_database_code               4346011