Lithium Di- and Trimethyl Dimolybdenum(II) Complexes with Mo-Mo Quadruple Bonds and Bridging Methyl Groups.
Curado, Natalia; Carrasco, Mario; Álvarez, Eleuterio; Maya, Celia; Peloso, Riccardo; Rodríguez, Amor; López-Serrano, Joaquín; Carmona, Ernesto; Journal of the American Chemical Society 137 (2015) 12378–12387; doi:10.1021/jacs.5b07899

data_4124568
_publ_section_title
;
 Lithium Di- and Trimethyl Dimolybdenum(II) Complexes with Mo-Mo Quadruple
 Bonds and Bridging Methyl Groups.
;
_journal_issue                   38
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              12378
_journal_page_last               12387
_journal_paper_doi               10.1021/jacs.5b07899
_journal_volume                  137
_journal_year                    2015
_chemical_formula_moiety         'C58 H76 Li Mo2 N4 O3, C5 H12'
_chemical_formula_sum            'C63 H88 Li Mo2 N4 O3'
_chemical_formula_weight         1148.19
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 97.764(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.2509(6)
_cell_length_b                   14.4835(6)
_cell_length_c                   34.4912(16)
_cell_measurement_reflns_used    8131
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      23.83
_cell_measurement_theta_min      2.38
_cell_volume                     6063.9(5)
_computing_cell_refinement       'APEX2 Software Suite (Bruker, 2007)'
_computing_data_collection       'APEX2 Software Suite (Bruker, 2007)'
_computing_data_reduction        'APEX2 Software Suite (Bruker, 2007)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL and publCIF (Westrip, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR2002 (Burla et al., 2003)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 8.26
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type
;
 Bruker-Nonius X8kappa APEX II CCD area detector
;
_diffrn_measurement_method       'phi and omega scans with narrow frames'
_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  0.0657
_diffrn_reflns_av_sigmaI/netI    0.0570
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       41
_diffrn_reflns_limit_l_min       -41
_diffrn_reflns_number            48924
_diffrn_reflns_theta_full        25.25
_diffrn_reflns_theta_max         25.25
_diffrn_reflns_theta_min         1.53
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.459
_exptl_absorpt_correction_T_max  0.9385
_exptl_absorpt_correction_T_min  0.9077
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
program SADABS, Bruker (2001).
;
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.258
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2420
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.890
_refine_diff_density_min         -0.817
_refine_diff_density_rms         0.149
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.080
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     703
_refine_ls_number_reflns         10911
_refine_ls_number_restraints     223
_refine_ls_restrained_S_all      1.077
_refine_ls_R_factor_all          0.0794
_refine_ls_R_factor_gt           0.0538
_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^)+(0.0668P)^2^+5.8630P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1282
_refine_ls_wR_factor_ref         0.1439
_reflns_number_gt                8153
_reflns_number_total             10911
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja5b07899_si_002.cif
_cod_data_source_block           3a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 3271 2015-04-21 07:52:19Z andrius 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4124568