Terphenyl complexes of molybdenum and tungsten with quadruple metal-metal bonds and bridging carboxylate ligands.
Carrasco, Mario; Mendoza, Irene; Faust, Michelle; López-Serrano, Joaquín; Peloso, Riccardo; Rodríguez, Amor; Alvarez, Eleuterio; Maya, Celia; Power, Philip P.; Carmona, Ernesto; Journal of the American Chemical Society 136 (2014) 9173–9180; doi:10.1021/ja503750a

data_4122004
_publ_section_title
;
 Terphenyl complexes of molybdenum and tungsten with quadruple metal-metal
 bonds and bridging carboxylate ligands.
;
_journal_issue                   25
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9173
_journal_page_last               9180
_journal_paper_doi               10.1021/ja503750a
_journal_volume                  136
_journal_year                    2014
_chemical_formula_moiety         'C42 H58 Mo2 O6'
_chemical_formula_sum            'C42 H58 Mo2 O6'
_chemical_formula_weight         850.76
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 109.657(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.9640(7)
_cell_length_b                   17.3636(8)
_cell_length_c                   18.9563(8)
_cell_measurement_reflns_used    4766
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      23.84
_cell_measurement_theta_min      2.57
_cell_volume                     4018.4(3)
_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      100(2)
_diffrn_detector_area_resol_mean 8.26
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_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  0.0742
_diffrn_reflns_av_sigmaI/netI    0.0889
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            107230
_diffrn_reflns_theta_full        30.71
_diffrn_reflns_theta_max         30.71
_diffrn_reflns_theta_min         2.04
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.668
_exptl_absorpt_correction_T_max  0.9423
_exptl_absorpt_correction_T_min  0.9301
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
program SADABS, Bruker (2001).
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.406
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1768
_exptl_crystal_size_max          0.11
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.913
_refine_diff_density_min         -1.493
_refine_diff_density_rms         0.255
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     466
_refine_ls_number_reflns         12345
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.1248
_refine_ls_R_factor_gt           0.0591
_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^)+(0.0795P)^2^+3.3332P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1397
_refine_ls_wR_factor_ref         0.1735
_reflns_number_gt                7447
_reflns_number_total             12345
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja503750a_si_001.cif
_cod_data_source_block           1d
_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/rss-feeds/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 2281 2013-09-26 08:29:07Z andrius 

 Adding full bibliography for 4122003--4122009.cif.
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4122004