Thermally stable rare earth dialkyl complexes supported by a novel bis(phosphinimine)pyrrole ligand.
Johnson, Kevin R. D.; Hannon, Matt A.; Ritch, Jamie S.; Hayes, Paul G.; Dalton transactions (Cambridge, England : 2003) 41 (2012) 7873–7875; doi:10.1039/c2dt12485h

data_7019243
_publ_section_title
;
 Thermally stable rare earth dialkyl complexes supported by a novel
 bis(phosphinimine)pyrrole ligand.
;
_journal_issue                   26
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7873
_journal_page_last               7875
_journal_paper_doi               10.1039/c2dt12485h
_journal_volume                  41
_journal_year                    2012
_chemical_formula_sum            'C54 H66 Er N3 P2 Si2'
_chemical_formula_weight         1042.48
_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     heavy
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                84.796(5)
_cell_angle_beta                 78.920(5)
_cell_angle_gamma                69.550(5)
_cell_formula_units_Z            2
_cell_length_a                   9.729(5)
_cell_length_b                   12.188(6)
_cell_length_c                   24.287(11)
_cell_measurement_reflns_used    9980
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.31
_cell_measurement_theta_min      2.27
_cell_volume                     2647(2)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_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      173(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0345
_diffrn_reflns_av_sigmaI/netI    0.0382
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            34897
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         1.71
_exptl_absorpt_coefficient_mu    1.727
_exptl_absorpt_correction_T_max  0.8945
_exptl_absorpt_correction_T_min  0.4955
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'SADABS (Bruker, 2008)'
_exptl_crystal_colour            pink
_exptl_crystal_density_diffrn    1.308
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1074
_exptl_crystal_size_max          0.47
_exptl_crystal_size_mid          0.09
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.827
_refine_diff_density_min         -0.814
_refine_diff_density_rms         0.082
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.022
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     548
_refine_ls_number_reflns         10778
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.022
_refine_ls_R_factor_all          0.0484
_refine_ls_R_factor_gt           0.0365
_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^)+(0.0399P)^2^+3.1446P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0818
_refine_ls_wR_factor_ref         0.0868
_reflns_number_gt                9128
_reflns_number_total             10778
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt12485h.txt
_cod_data_source_block           ph11025
_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 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7019243