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_4124569
_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         'C49 H61 Li Mo2 N4 O'
_chemical_formula_sum            'C49 H61 Li Mo2 N4 O'
_chemical_formula_weight         920.84
_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                79.420(4)
_cell_angle_beta                 80.038(4)
_cell_angle_gamma                70.732(4)
_cell_formula_units_Z            2
_cell_length_a                   10.2420(13)
_cell_length_b                   10.8683(15)
_cell_length_c                   22.381(3)
_cell_measurement_reflns_used    5916
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      0.00
_cell_measurement_theta_min      0.00
_cell_volume                     2294.7(5)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.972
_diffrn_measured_fraction_theta_max 0.971
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \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  0.0453
_diffrn_reflns_av_sigmaI/netI    0.0396
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            36706
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.25
_diffrn_reflns_theta_min         0.93
_exptl_absorpt_coefficient_mu    0.585
_exptl_absorpt_correction_T_max  0.916
_exptl_absorpt_correction_T_min  0.615
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
 SADABS, Bruker (2006). APEX 2. Version 2.1. Bruker Analytical
 X-ray Solutions, Madison, Wisconsin, USA. 
;
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.333
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             956
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.15
_refine_diff_density_max         1.542
_refine_diff_density_min         -1.348
_refine_diff_density_rms         0.158
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.099
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     556
_refine_ls_number_reflns         8073
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.099
_refine_ls_R_factor_all          0.0984
_refine_ls_R_factor_gt           0.0756
_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^)+(0.1794P)^2^+2.1241P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2347
_refine_ls_wR_factor_ref         0.2566
_reflns_number_gt                6150
_reflns_number_total             8073
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja5b07899_si_002.cif
_cod_data_source_block           3b
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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_database_code               4124569