Imidazolin-2-iminato Complexes of Rare Earth Metals with Very Short Metal‒Nitrogen Bonds: Experimental and Theoretical Studies
Panda, Tarun K.; Trambitas, Alexandra G.; Bannenberg, Thomas; Hrib, Cristian G.; Randoll, Sören; Jones, Peter G.; Tamm, Matthias; Inorganic chemistry 48 (2009) 5462–5472; doi:10.1021/ic900503q

data_4302394
_publ_section_title
;
 Imidazolin-2-iminato Complexes of Rare Earth Metals with Very Short
 Metal--Nitrogen Bonds: Experimental and Theoretical Studies
;
_journal_coden_ASTM              INOCAJ
_journal_issue                   12
_journal_name_full               'Inorganic chemistry'
_journal_page_first              5462
_journal_page_last               5472
_journal_paper_doi               10.1021/ic900503q
_journal_volume                  48
_journal_year                    2009
_chemical_formula_sum            'C27 H37 N3'
_chemical_formula_weight         403.60
_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                 106.755(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.7270(14)
_cell_length_b                   6.5185(6)
_cell_length_c                   20.1008(16)
_cell_measurement_reflns_used    8979
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28
_cell_measurement_theta_min      2
_cell_volume                     2475.0(4)
_computing_cell_refinement       'Bruker APEX2'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker APEX2'
_computing_molecular_graphics    'Bruker XP'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker APEX2 CCD'
_diffrn_measurement_method       '\w- and \f-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  0.0444
_diffrn_reflns_av_sigmaI/netI    0.0305
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            45114
_diffrn_reflns_theta_full        28.00
_diffrn_reflns_theta_max         28.40
_diffrn_reflns_theta_min         1.71
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.063
_exptl_absorpt_correction_T_max  0.9937
_exptl_absorpt_correction_T_min  0.8305
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.083
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             880
_exptl_crystal_size_max          0.17
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.347
_refine_diff_density_min         -0.277
_refine_diff_density_rms         0.041
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.015
_refine_ls_hydrogen_treatment    'rigid methyls, others riding'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     283
_refine_ls_number_reflns         6161
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.0730
_refine_ls_R_factor_gt           0.0513
_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^)+(0.0571P)^2^+1.1300P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1220
_refine_ls_wR_factor_ref         0.1340
_reflns_number_gt                4654
_reflns_number_total             6161
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             4338641
_cod_data_source_file            ic900503q_si_002_6.cif
_cod_data_source_block           tarun92
_cod_original_cell_volume        2475.0(3)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4302394