Neutral ligand induced methane elimination from rare-earth metal tetramethylaluminates up to the six-coordinate carbide state
Venugopal, Ajay; Kamps, Ina; Bojer, Daniel; Berger, Raphael J. F.; Mix, Andreas; Willner, Alexander; Neumann, Beate; Stammler, Hans-Georg; Mitzel, Norbert W.; Dalton Transactions  (2009) 5755–; doi:10.1039/b905271b

data_7001730
_publ_section_title
;
 Neutral ligand induced methane elimination from rare-earth metal
 tetramethylaluminates up to the six-coordinate carbide state
;
_journal_issue                   29
_journal_name_full               'Dalton Transactions'
_journal_page_first              5755
_journal_paper_doi               10.1039/b905271b
_journal_year                    2009
_chemical_formula_sum            'C32 H75 Al5 N3 Sm3'
_chemical_formula_weight         543.95
_chemical_name_systematic
;
?
;
_space_group_IT_number           11
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yb'
_symmetry_space_group_name_H-M   'P 1 21/m 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                 97.610(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.5604(11)
_cell_length_b                   17.289(2)
_cell_length_c                   14.1729(17)
_cell_measurement_temperature    153(2)
_cell_volume                     2322.0(5)
_computing_cell_refinement       'SAINT (Bruker AXS, 2000)'
_computing_data_collection       'SMART (Bruker AXS, 2000)'
_computing_data_reduction        'SAINT,SADABS (Bruker AXS, 2000)'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      153(2)
_diffrn_detector_area_resol_mean 80
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_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  0.0308
_diffrn_reflns_av_sigmaI/netI    0.0294
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            26856
_diffrn_reflns_theta_full        30.03
_diffrn_reflns_theta_max         30.03
_diffrn_reflns_theta_min         1.45
_exptl_absorpt_coefficient_mu    3.860
_exptl_absorpt_correction_T_max  0.5123
_exptl_absorpt_correction_T_min  0.3905
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.556
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1078
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         1.536
_refine_diff_density_min         -1.093
_refine_diff_density_rms         0.121
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.223
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     331
_refine_ls_number_reflns         6979
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.223
_refine_ls_R_factor_all          0.0424
_refine_ls_R_factor_gt           0.0378
_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^)+(0.0244P)^2^+3.7927P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0778
_refine_ls_wR_factor_ref         0.0793
_reflns_number_gt                6480
_reflns_number_total             6979
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b905271b.txt
_cod_data_source_block           compound_5_CCDC_679433
_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 2.4.1 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      P2(1)/m
_cod_database_code               7001730