Mono- and dinuclear molybdenum complexes with sterically demanding cycloheptatrienyl ligands.
Tamm, Matthias; Bannenberg, Thomas; Fröhlich, Roland; Grimme, Stefan; Gerenkamp, Mareike; Dalton transactions (Cambridge, England : 2003)  (2004) 482–491; doi:10.1039/b314347c

data_7013770
_publ_section_title
;
 Mono- and dinuclear molybdenum complexes with sterically demanding
 cycloheptatrienyl ligands.
;
_journal_issue                   3
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              482
_journal_page_last               491
_journal_paper_doi               10.1039/b314347c
_journal_year                    2004
_chemical_formula_sum            'C19 H31 B F4 Mo O3 Si3'
_chemical_formula_weight         574.46
_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                 95.827(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.047(5)
_cell_length_b                   9.928(4)
_cell_length_c                   19.079(7)
_cell_measurement_reflns_used    900
_cell_measurement_temperature    153(1)
_cell_measurement_theta_max      22.5
_cell_measurement_theta_min      1
_cell_volume                     2647.0(17)
_computing_cell_refinement       'SAINT (Bruker AXS, 2000)'
_computing_data_collection       'SMART (Bruker AXS, 2000)'
_computing_data_reduction        'SAINT,SADABS (Bruker AXS, 2000)'
_computing_molecular_graphics
;
ORTEP3,L.J. Farrugia, J. Appl. Cryst. (1997) 30, 565
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      153(1)
_diffrn_detector_area_resol_mean 80
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'Omega and Phi scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0794
_diffrn_reflns_av_sigmaI/netI    0.0712
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            20307
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.72
_exptl_absorpt_coefficient_mu    0.677
_exptl_absorpt_correction_T_max  0.9479
_exptl_absorpt_correction_T_min  0.7642
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Corrections were done with the SADABS program, utilizing the none merged
raw data obtained from the integration process. Integration and final cell
refinement were done with SAINT.
SADABS reports Tmin  0.613383

;
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.441
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needles
_exptl_crystal_F_000             1176
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.845
_refine_diff_density_min         -0.331
_refine_diff_density_rms         0.082
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.882
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     280
_refine_ls_number_reflns         4669
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.882
_refine_ls_R_factor_all          0.0598
_refine_ls_R_factor_gt           0.0351
_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^)+(0.0316P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0697
_refine_ls_wR_factor_ref         0.0744
_reflns_number_gt                3266
_reflns_number_total             4669
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b314347c.txt
_cod_data_source_block           single
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7013770