Carboxylate-Based Molybdenum Alkylidene Catalysts: Synthesis, Characterization, and Use as Initiators for 1,6-Heptadiyne Cyclopolymerizations
Schrock, Richard R.; Tonzetich, Zachary J.; Lichtscheidl, Alejandro G.; Müller, Peter; Schattenmann, Florian J.; Organometallics 27 (2008) 3986–; doi:10.1021/om800314y

data_4071685
_publ_section_title
;
 Carboxylate-Based Molybdenum Alkylidene Catalysts: Synthesis,
 Characterization, and Use as Initiators for 1,6-Heptadiyne
 Cyclopolymerizations
;
_journal_issue                   15
_journal_name_full               Organometallics
_journal_page_first              3986
_journal_paper_doi               10.1021/om800314y
_journal_volume                  27
_journal_year                    2008
_chemical_formula_sum            'C64 H63 Mo N O4'
_chemical_formula_weight         1006.09
_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                88.751(9)
_cell_angle_beta                 76.586(9)
_cell_angle_gamma                66.079(9)
_cell_formula_units_Z            2
_cell_length_a                   12.194(6)
_cell_length_b                   12.241(6)
_cell_length_c                   20.290(11)
_cell_measurement_reflns_used    9627
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.89
_cell_measurement_theta_min      2.44
_cell_volume                     2684(2)
_computing_cell_refinement       'SAINT 7.3 (Bruker-AXS, 2006)'
_computing_data_collection       'APEX2 2.1 (Bruker-AXS, 2007)'
_computing_data_reduction        'SAINT 7.3 (Bruker-AXS, 2006)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.3
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker Smart APEX CCD'
_diffrn_measurement_method       'omega and phi 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  0.0371
_diffrn_reflns_av_sigmaI/netI    0.0369
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            48967
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         1.04
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.292
_exptl_absorpt_correction_T_max  0.9713
_exptl_absorpt_correction_T_min  0.9305
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2007)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.245
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1056
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.939
_refine_diff_density_min         -0.633
_refine_diff_density_rms         0.061
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     665
_refine_ls_number_reflns         13298
_refine_ls_number_restraints     100
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.0441
_refine_ls_R_factor_gt           0.0342
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0360P)^2^+1.6248P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0804
_refine_ls_wR_factor_ref         0.0860
_reflns_number_gt                11349
_reflns_number_total             13298
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om800314y-file004.cif
_cod_data_source_block           08026
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4071685