Film growth precursor development for metal nitrides. Synthesis, structure, and volatility of molybdenum(VI) and tungsten(VI) complexes containing bis(imido)metal fragments and various nitrogen donor ligands.
El-Kadri, Oussama M; Heeg, Mary Jane; Winter, Charles H.; Dalton transactions (Cambridge, England : 2003)  (2006) 1943–1953; doi:10.1039/b515378f

data_7006909
_publ_section_title
;
 Film growth precursor development for metal nitrides. Synthesis,
 structure, and volatility of molybdenum(VI) and tungsten(VI) complexes
 containing bis(imido)metal fragments and various nitrogen donor
 ligands.
;
_journal_issue                   16
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1943
_journal_page_last               1953
_journal_paper_doi               10.1039/b515378f
_journal_year                    2006
_chemical_formula_sum            'C28 H48 Mo N10'
_chemical_formula_weight         620.70
_chemical_name_systematic
;
?
;
_space_group_IT_number           7
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P -2yac'
_symmetry_space_group_name_H-M   'P 1 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                 100.306(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.7510(11)
_cell_length_b                   9.8157(10)
_cell_length_c                   17.518(2)
_cell_measurement_reflns_used    1004
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      26.5
_cell_measurement_theta_min      2.25
_cell_volume                     1649.6(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    SHELXTL-Plus
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 0.953
_diffrn_measured_fraction_theta_max 0.953
_diffrn_measurement_method       'SMART CCD'
_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  0.024
_diffrn_reflns_av_sigmaI/netI    0.0561
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            11650
_diffrn_reflns_theta_full        28.27
_diffrn_reflns_theta_max         28.27
_diffrn_reflns_theta_min         2.07
_exptl_absorpt_coefficient_mu    0.430
_exptl_absorpt_correction_T_max  0.9189
_exptl_absorpt_correction_T_min  0.8640
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.250
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             656
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.391
_refine_diff_density_min         -0.390
_refine_diff_density_rms         0.054
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.10(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.940
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     372
_refine_ls_number_reflns         6661
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      0.940
_refine_ls_R_factor_all          0.0560
_refine_ls_R_factor_gt           0.0356
_refine_ls_shift/su_max          0.017
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0325P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0649
_refine_ls_wR_factor_ref         0.0705
_reflns_number_gt                5245
_reflns_number_total             6661
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b515378f.txt
_cod_data_source_block           lybd
_cod_depositor_comments
;
The following automatic conversions were performed:
'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' 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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      Pn
_cod_database_code               7006909