Metal-Metal Quadruple Bonds Supported by 5-Ethynylthiophene-2-carboxylato Ligands: Preparation, Molecular and Electronic Structures, Photoexcited State Dynamics, and Application as Molecular Synthons
Samantha E. Brown-Xu; Malcolm H. Chisholm; Christopher B. Durr; Thomas F. Spilker; Journal of the American Chemical Society 135 (2013) 8254–8259; doi:10.1021/ja400508u

data_4119824
_publ_contact_author_address
;Department of Chemistry and Biochemistry
The Ohio State University 
100 West 18th Avenue
Columbus, OH  43210
;
_publ_contact_author_email       chisholm@chemistry.ohio-state.edu
_publ_contact_author_fax         '(+1) 614 292-0368'
_publ_contact_author_name        'Malcolm H. Chisholm'
_publ_contact_author_phone       '(+1) 614 282-7216'
_publ_section_title
;
 Metal-Metal Quadruple Bonds Supported by 5-Ethynylthiophene-2-carboxylato
 Ligands: Preparation, Molecular and Electronic Structures, Photoexcited
 State Dynamics, and Application as Molecular Synthons
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              8254
_journal_page_last               8259
_journal_paper_doi               10.1021/ja400508u
_journal_volume                  135
_journal_year                    2013
_chemical_absolute_configuration unk
_chemical_formula_sum            'C58 H76 Mo2 O11 S2'
_chemical_formula_weight         1205.19
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.4
_audit_creation_date             2012-09-12T12:08:32-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   23.8873(6)
_cell_length_b                   9.0066(2)
_cell_length_c                   27.0771(7)
_cell_measurement_reflns_used    7385
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      1.018
_cell_volume                     5825.5(2)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2004)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0508
_diffrn_reflns_limit_h_max       30
_diffrn_reflns_limit_h_min       -31
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       35
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            63162
_diffrn_reflns_theta_full        27.5
_diffrn_reflns_theta_max         27.5
_diffrn_reflns_theta_min         1.5
_exptl_absorpt_coefficient_mu    0.559
_exptl_absorpt_correction_T_max  0.746
_exptl_absorpt_correction_T_min  0.657
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.374
_exptl_crystal_description       block
_exptl_crystal_F_000             2512
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.588
_refine_diff_density_min         -0.615
_refine_diff_density_rms         0.171
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.01(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.084
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     658
_refine_ls_number_reflns         13110
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.084
_refine_ls_R_factor_all          0.0668
_refine_ls_R_factor_gt           0.0396
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0505P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.085
_refine_ls_wR_factor_ref         0.0944
_reflns_number_gt                10108
_reflns_number_total             13110
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            ja400508u_si_002_2.cif
_cod_data_source_block           cbd024
_cod_database_code               4119824