Monoaryloxide Pyrrolide (MAP) Imido Alkylidene Complexes of Molybdenum and Tungsten That Contain 2,6-Bis(2,5-R2-pyrrolyl)phenoxide (R = i-Pr, Ph) Ligands and an Unsubstituted Metallacyclobutane on Its Way to Losing Ethylene.
Reithofer, Michael R.; Dobereiner, Graham E.; Schrock, Richard R.; Müller, Peter; Organometallics 32 (2013) 2489–2492; doi:10.1021/om400114h

data_4080710
_publ_section_title
;
 Monoaryloxide Pyrrolide (MAP) Imido Alkylidene Complexes of Molybdenum
 and Tungsten That Contain 2,6-Bis(2,5-R2-pyrrolyl)phenoxide (R = i-Pr,
 Ph) Ligands and an Unsubstituted Metallacyclobutane on Its Way to Losing
 Ethylene.
;
_journal_issue                   9
_journal_name_full               Organometallics
_journal_page_first              2489
_journal_page_last               2492
_journal_paper_doi               10.1021/om400114h
_journal_volume                  32
_journal_year                    2013
_chemical_formula_sum            'C57 H80 Mo N4 O'
_chemical_formula_weight         933.19
_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                 99.7440(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.1624(4)
_cell_length_b                   15.9182(3)
_cell_length_c                   17.2741(3)
_cell_measurement_reflns_used    9036
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      69.58
_cell_measurement_theta_min      3.63
_cell_volume                     5193.12(17)
_computing_cell_refinement       'SAINT 7.46A (Bruker-AXS, 2009)'
_computing_data_collection       'APEX2 v2009.9.0 (Bruker-AXS, 2009)'
_computing_data_reduction        'SAINT 7.46A (Bruker-AXS, 2009)'
_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      100(2)
_diffrn_detector_area_resol_mean 8.3
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker Smart APEX CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0314
_diffrn_reflns_av_sigmaI/netI    0.0136
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            103056
_diffrn_reflns_theta_full        69.32
_diffrn_reflns_theta_max         69.32
_diffrn_reflns_theta_min         2.34
_exptl_absorpt_coefficient_mu    2.370
_exptl_absorpt_correction_T_max  0.7975
_exptl_absorpt_correction_T_min  0.4152
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2009)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.194
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2000
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.506
_refine_diff_density_min         -0.457
_refine_diff_density_rms         0.050
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     585
_refine_ls_number_reflns         9721
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.0261
_refine_ls_R_factor_gt           0.0251
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0341P)^2^+3.6102P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0645
_refine_ls_wR_factor_ref         0.0653
_reflns_number_gt                9338
_reflns_number_total             9721
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om400114h_si_002.cif
_cod_data_source_block           d10099
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.3.1 from 2005-06-27.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
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_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4080710